Ep450 dsm by jesus flores

EP450â&#x201E;˘

Portable Radio Detailed Service Manual MOTOROLA, The Stylized M logo are trademarks of Motorola, Inc. All other product or service names are the property of their respective owners. ÂŠ 2003 Motorola, Inc. All rights reserved. Printed in U.S.A.

HKLN4216A HKLN4216A

EP450 Portable Radio Detailed Service Manual VHF 146-174 MHz UHF 403-440 MHz UHF 438-470 MHz UHF 465-495 MHz

Motorola, Inc. 1301 E. Algonquin Road Schaumburg, IL 60196

HKLN4216A

Foreword This manual is intended for use by service technicians familiar with portable two-way radios. It contains service information required for the equipment described and is current as of the printing date. Changes which occur after the printing date may be incorporated by a complete Manual revision or alternatively as additions

Product Safety and RF Exposure Compliance

Note: Before using this product, read the operating instructions for safe usage contained in the Product Safety and RF Exposure booklet enclosed with your radio.

Caution

ATTENTION! This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements. Before using this product, read the RF energy awareness information and operating instructions in the Product Safety and RF Exposure booklet enclosed with your radio (Motorola Publication part number 68P81068810) to ensure compliance with RF energy exposure limits. For a list of Motorola-approved antennas, batteries, and other accessories, visit the following web site which lists approved accessories: http://www.motorola.com/cgiss/index.shtml.

Computer Software Copyrights The Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including, but not limited to, the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola products described in this manual may not be copied, reproduced, modified, reverse-engineered, or distributed in any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive license to use that arises by operation of law in the sale of a product.

Document Copyrights No duplication or distribution of this document or any portion thereof shall take place without the express written permission of Motorola. No part of this manual may be reproduced, distributed, or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express written permission of Motorola.

Disclaimer The information in this document is carefully examined, and is believed to be entirely reliable. However, no responsibility is assumed for inaccuracies. Furthermore, Motorola reserves the right to make changes to any products herein to improve readability, function, or design. Motorola does not assume any liability arising out of the applications or use of any product or circuit described herein; nor does it cover any license under its patent rights nor the rights of others. MOTOROLA, The Stylized M logo are trademarks of Motorola, Inc. All other product or service names are the property of their respective owners. ÂŠ 2003 Motorola, Inc. All rights reserved. Printed in U.S.A.

Table of Contents

iii

Table of Contents Foreword............................................................................................................................................ii Product Safety and RF Exposure Compliance ..................................................................................ii Computer Software Copyrights..........................................................................................................ii Document Copyrights ........................................................................................................................ii Disclaimer ..........................................................................................................................................ii

List of Figures .............................................................................................viii List of Tables .................................................................................................ix Related Publications ......................................................................................x

Module 1: VHF 146-174 MHz Chapter 1 1.1 1.2

Test Equipment.............................................................................................................................. 1-1 Service Aids................................................................................................................................... 1-2

Chapter 2 2.1

DC Power Distribution ........................................................ 2-1

DC Regulation and Distribution ..................................................................................................... 2-1

Chapter 3 3.1

Test Equipment, Service Aids, and Service Tools....................................................................... 1-1

Controller Theory of Operation.......................................... 3-1

Controller ....................................................................................................................................... 3-1 3.1.1 Microprocessor Circuitry ................................................................................................... 3-1 3.1.1.1 Memory Usage ........................................................................................................ 3-2 3.1.1.2 Control and Indicator Interface ................................................................................ 3-2 3.1.1.3 Serial Bus Control of Circuit Blocks ......................................................................... 3-2 3.1.1.4 Interface to RSS Programming................................................................................ 3-3 3.1.1.5 Storage of Customer-Specific Information............................................................... 3-3 3.1.1.6 Sensing of Externally-Connected Accessories ........................................................ 3-3 3.1.1.7 Microprocessor Power-Up, Power-Down and Reset Routine.................................. 3-3 3.1.1.8 Boot Mode Control................................................................................................... 3-4 3.1.1.9 Microprocessor 7.3975 MHz Clock.......................................................................... 3-4 3.1.1.10 Battery Gauge.......................................................................................................... 3-4 3.1.2 Audio Circuitry .................................................................................................................. 3-4 3.1.2.1 Transmit and Receive Low-Level Audio Circuitry .................................................... 3-4 3.1.2.2 Audio Power Amplifier ............................................................................................. 3-5 3.1.2.3 Internal Microphone Audio Voice Path .................................................................... 3-5 3.1.2.4 PTT Circuits ............................................................................................................. 3-6 3.1.2.5 VOX Operation ........................................................................................................ 3-6 3.1.2.6 Programming and Flashing Through Microphone Jack ........................................... 3-6

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Chapter 4 4.1 4.2

4.3

4.4

4.5

Introduction .................................................................................................................................... 4-1 VHF Receiver................................................................................................................................. 4-1 4.2.1 Receiver Front-End........................................................................................................... 4-1 4.2.2 Receiver Back-End ........................................................................................................... 4-2 VHF Transmitter............................................................................................................................. 4-3 4.3.1 Transmit Power Amplifier .................................................................................................. 4-3 4.3.2 Antenna Switch ................................................................................................................. 4-3 4.3.3 Harmonic Filter.................................................................................................................. 4-3 4.3.4 Antenna Matching Network............................................................................................... 4-4 4.3.5 Power Control ................................................................................................................... 4-4 VHF Frequency Generation Circuitry............................................................................................. 4-4 4.4.1 Fractional-N Synthesizer................................................................................................... 4-5 4.4.2 Voltage Controlled Oscillator (VCO) ................................................................................. 4-6 Keypad........................................................................................................................................... 4-7

Chapter 5 5.1 5.2 5.3 5.4

VHF Theory Of Operation ................................................... 4-1

VHF Troubleshooting Tables ............................................. 5-1

Troubleshooting Table for Receiver............................................................................................... 5-1 Troubleshooting Table for Synthesizer .......................................................................................... 5-3 Troubleshooting Table for Transmitter........................................................................................... 5-4 Troubleshooting Table for Board and IC Signals ........................................................................... 5-6

Chapter 6

VHF Schematic Diagrams, Overlays, and Parts Lists...... 6-1

6.1

Introduction .................................................................................................................................... 6-1 6.1.1 Notes For All Schematics and Circuit Boards ................................................................... 6-1 6.1.2 Six Layer Circuit Board ..................................................................................................... 6-3 6.2 Speaker and Microphone Schematic ............................................................................................. 6-3 6.2.1 Speaker and Microphone Parts List.................................................................................. 6-3 Figure 6-3. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram....................................... 6-5 Figure 6-4. VHF (146-174 MHz) Receiver Front End Schematic Diagram ......................................... 6-6 Figure 6-5. VHF (146-174 MHz) Receiver Back End Schematic Diagram ......................................... 6-7 Figure 6-6. VHF (146-174 MHz) Synthesizer Schematic Diagram ..................................................... 6-8 Figure 6-7. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic Diagram .......................... 6-9 Figure 6-8. VHF (146-174 MHz) Transmitter and Power Control Schematic Diagram ..................... 6-10 Figure 6-9. VHF (146-174 MHz) Controller Interconnect Schematic Diagram.................................. 6-11 Figure 6-10. VHF (146-174 MHz) Microprocessor Circuitry Schematic Diagram ............................... 6-12 Figure 6-11. VHF (146-174 MHz) Audio Circuitry Schematic Diagram............................................... 6-13 Figure 6-12. VHF (146-174 MHz) DC Regulation Schematic Diagram.............................................. 6-14 Figure 6-13. VHF (146-174 MHz) Keypad Board Schematic Diagram ............................................... 6-15 Figure 6-14. VHF (146-174 MHz) Board Component Side View ........................................................ 6-16 Figure 6-15. VHF (146-174 MHz) Board Solder Side View ................................................................ 6-17 Figure 6-16. VHF (146-174 MHz) Keypad Board................................................................................ 6-18 VHF (146-174 MHz) Radio Parts List .................................................................................................... 6-19 VHF (146-174 MHz) Keypad Board Parts List....................................................................................... 6-22

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Module 2: UHF 403-440, 438-470, 465-495 MHz Chapter 7 7.1 7.2

7.3

7.4

7.5

Introduction .................................................................................................................................... 7-1 UHF Receiver ................................................................................................................................ 7-1 7.2.1 Receiver Front End ........................................................................................................... 7-1 7.2.2 Receiver Back End ........................................................................................................... 7-2 UHF Transmitter ............................................................................................................................ 7-3 7.3.1 Transmitter Power Amplifier ............................................................................................. 7-3 7.3.2 Antenna Switch ................................................................................................................. 7-3 7.3.3 Harmonic Filter ................................................................................................................. 7-3 7.3.4 Antenna Matching Network............................................................................................... 7-4 7.3.5 Power Control ................................................................................................................... 7-4 UHF Frequency Generation Circuitry ............................................................................................ 7-4 7.4.1 Fractional-N Synthesizer .................................................................................................. 7-5 7.4.2 Voltage Controlled Oscillator (VCO) ................................................................................. 7-6 Keypad........................................................................................................................................... 7-7

Chapter 8 8.1 8.2

8.3

8.4

8.5

9.3

9.4

9.5

438-470 MHz UHF Theory Of Operation ............................ 8-1

Introduction .................................................................................................................................... 8-1 UHF Receiver ................................................................................................................................ 8-1 8.2.1 Receiver Front End ........................................................................................................... 8-1 8.2.2 Receiver Back End ........................................................................................................... 8-2 UHF Transmitter ............................................................................................................................ 8-3 8.3.1 Transmitter Power Amplifier ............................................................................................. 8-3 8.3.2 Antenna Switch ................................................................................................................. 8-3 8.3.3 Harmonic Filter ................................................................................................................. 8-3 8.3.4 Antenna Matching Network............................................................................................... 8-4 8.3.5 Power Control ................................................................................................................... 8-4 UHF Frequency Generation Circuitry ............................................................................................ 8-4 8.4.1 Fractional-N Synthesizer .................................................................................................. 8-5 8.4.2 Voltage Controlled Oscillator (VCO) ................................................................................. 8-6 Keypad........................................................................................................................................... 8-7

Chapter 9 9.1 9.2

403-440 MHz UHF Theory Of Operation ............................ 7-1

465-495 MHz UHF Theory Of Operation ............................ 9-1

Introduction .................................................................................................................................... 9-1 UHF Receiver ................................................................................................................................ 9-1 9.2.1 Receiver Front End ........................................................................................................... 9-1 9.2.2 Receiver Back End ........................................................................................................... 9-2 UHF Transmitter ............................................................................................................................ 9-3 9.3.1 Transmitter Power Amplifier ............................................................................................. 9-3 9.3.2 Antenna Switch ................................................................................................................. 9-3 9.3.3 Harmonic Filter ................................................................................................................. 9-3 9.3.4 Antenna Matching Network............................................................................................... 9-4 9.3.5 Power Control ................................................................................................................... 9-4 UHF Frequency Generation Circuitry ............................................................................................ 9-4 9.4.1 Fractional-N Synthesizer .................................................................................................. 9-5 9.4.2 Voltage Controlled Oscillator (VCO) ................................................................................. 9-6 Keypad........................................................................................................................................... 9-7

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Chapter 10 10.1 10.2 10.3 10.4

UHF Troubleshooting Tables ........................................... 10-1

Troubleshooting Table for Receiver............................................................................................. 10-1 Troubleshooting Table for Synthesizer ........................................................................................ 10-3 Troubleshooting Table for Transmitter......................................................................................... 10-4 Troubleshooting Table for Board and IC Signals ......................................................................... 10-6

Chapter 11

UHF Schematic Diagrams, Overlays, and Parts Lists ... 11-1

11.1 Introduction .................................................................................................................................. 11-1 11.1.1 Notes For All Schematics and Circuit Boards ................................................................. 11-1 11.1.2 Six Layer Circuit Board ................................................................................................... 11-3 11.2 Speaker and Microphone Schematic ........................................................................................... 11-3 11.2.1 Speaker and Microphone Parts List................................................................................ 11-3

UHF 403-440 MHz Schematic Diagrams, Overlays, and Parts Lists .................................................................. 11-5 Figure 11-3. UHF (403-440 MHz) Radio Circuit Block Diagram ......................................................... 11-5 Figure 11-4. UHF (403-440 MHz) Receiver Front End Schematic Diagram....................................... 11-6 Figure 11-5. UHF (403-440 MHz) Receiver Back End Schematic Diagram ....................................... 11-7 Figure 11-6. UHF (403-440 MHz) Synthesizer Schematic Diagram ................................................... 11-8 Figure 11-7. UHF (403-440 MHz) Voltage Controlled Oscillator Schematic Diagram ........................ 11-9 Figure 11-8. UHF (403-440 MHz) Transmitter and Power Control Schematic Diagram................... 11-10 Figure 11-9. UHF (403-440 MHz) Controller Interconnect Schematic Diagram ............................... 11-11 Figure 11-10. UHF (403-440 MHz) Microprocessor Circuitry Schematic Diagram ............................. 11-12 Figure 11-11. UHF (403-440 MHz) Audio Circuitry Schematic Diagram ............................................ 11-13 Figure 11-12. UHF (403-440 MHz) DC Regulation Schematic Diagram ............................................ 11-14 Figure 11-13. UHF (403-440 MHz) Keypad Board Schematic Diagram ............................................. 11-15 Figure 11-14. UHF (403-440 MHz) Board Component Side View ...................................................... 11-16 Figure 11-15. UHF (403-440 MHz) Board Solder Side View .............................................................. 11-17 Figure 11-16. UHF (403-440 MHz) Keypad Board ............................................................................. 11-18 UHF (403-440 MHz) Radio Parts List .................................................................................................. 11-19 UHF (403-440 MHz) Keypad Board Parts List..................................................................................... 11-22

UHF 438-470 MHz Schematic Diagrams, Overlays, and Parts Lists ................................................................ 11-23 Figure 11-17. Figure 11-18. Figure 11-19. Figure 11-20. Figure 11-21. Figure 11-22. Figure 11-23. Figure 11-24. Figure 11-25. Figure 11-26. Figure 11-27. Figure 11-28. Figure 11-29.

UHF (438-470 MHz) Radio Circuit Block Diagram ....................................................... 11-23 UHF (438-470 MHz) Receiver Front End Schematic Diagram..................................... 11-24 UHF (438-470 MHz) Receiver Back End Schematic Diagram ..................................... 11-25 UHF (438-470 MHz) Synthesizer Schematic Diagram ................................................. 11-26 UHF (438-470 MHz) Voltage Controlled Oscillator Schematic Diagram ...................... 11-27 UHF (438-470 MHz) Transmitter and Power Control Schematic Diagram................... 11-28 UHF (438-470 MHz) Controller Interconnect Schematic Diagram ............................... 11-30 UHF (438-470 MHz) Microprocessor Circuitry Schematic Diagram ............................. 11-31 UHF (438-470 MHz) Audio Circuitry Schematic Diagram ............................................ 11-32 UHF (438-470 MHz) DC Regulation Schematic Diagram ............................................ 11-33 UHF (438-470 MHz) Keypad Board Schematic Diagram ............................................. 11-34 UHF (438-470 MHz) Board Component Side View ...................................................... 11-35 UHF (438-470 MHz) Board Solder Side View .............................................................. 11-36

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UHF (438-470 MHz) Radio Parts List.................................................................................................. 11-37 UHF (438-470 MHz) Keypad Board Parts List .................................................................................... 11-40

UHF 465-495 MHz Schematic Diagrams, Overlays, and Parts Lists ................................................................ 11-41 Figure 11-30. UHF (465-495 MHz) Radio Circuit Block Diagram ....................................................... 11-41 Figure 11-31. UHF (465-495 MHz) Receiver Front End Schematic Diagram..................................... 11-42 Figure 11-32. UHF (465-495 MHz) Receiver Back End Schematic Diagram ..................................... 11-43 Figure 11-33. UHF (465-495 MHz) Synthesizer Schematic Diagram................................................. 11-44 Figure 11-34. UHF (465-495 MHz) Voltage Controlled Oscillator Schematic Diagram ...................... 11-45 Figure 11-35. UHF (465-495 MHz) Transmitter and Power Control Schematic Diagram................... 11-46 Figure 11-36. UHF (465-495 MHz) Controller Interconnect Schematic Diagram ............................... 11-47 Figure 11-37. UHF (465-495 MHz) Microprocessor Circuitry Schematic Diagram............................. 11-48 Figure 11-38. UHF (465-495 MHz) Audio Circuitry Schematic Diagram ............................................ 11-49 Figure 11-39. UHF (465-495 MHz) DC Regulation Schematic Diagram ............................................ 11-50 Figure 11-40. UHF (465-495 MHz) Keypad Board Schematic Diagram............................................. 11-51 Figure 11-41. UHF (465-495 MHz) Board Component Side View...................................................... 11-52 Figure 11-42. UHF (465-495 MHz) Board Solder Side View .............................................................. 11-53 Figure 11-43. UHF (465-495 MHz) Keypad Board ............................................................................. 11-54 UHF (465-495 MHz) Radio Parts List.................................................................................................. 11-55 UHF (465-495 MHz) Keypad Board Parts List .................................................................................... 11-58

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List of Figures Figure 1-1. Figure 1-2. Figure 2-1. Figure 4-1. Figure 4-2. Figure 4-3. Figure 4-4. Figure 4-5. Figure 4-6. Figure 6-1. Figure 6-2. Figure 6-3. Figure 6-4. Figure 6-5. Figure 6-6. Figure 6-7. Figure 6-8. Figure 6-9. Figure 6-10. Figure 6-11. Figure 6-12. Figure 6-13. Figure 6-14. Figure 6-15. Figure 6-16. Figure 7-1. Figure 7-2. Figure 7-3. Figure 7-4. Figure 7-5. Figure 7-6. Figure 8-1. Figure 8-2. Figure 8-3. Figure 8-4. Figure 8-5. Figure 8-6. Figure 9-1. Figure 9-2. Figure 9-3. Figure 9-4. Figure 9-5. Figure 9-6. Figure 11-1. Figure 11-2. Figure 11-3. Figure 11-4. Figure 11-5.

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Programming/Test Cable.................................................................................................. 1-4 Wiring of the Connectors .................................................................................................. 1-4 DC Power Distribution Block Diagram.............................................................................. 2-1 VHF Receiver Block Diagram........................................................................................... 4-1 VHF Transmitter Block Diagram....................................................................................... 4-3 VHF Frequency Generation Unit Block Diagram.............................................................. 4-5 VHF Synthesizer Block Diagram ...................................................................................... 4-6 VHF VCO Block Diagram ................................................................................................. 4-7 Keypad Block Diagram ..................................................................................................... 4-7 Six-Layer Circuit Board: Copper Steps in Layer Sequence.............................................. 6-3 Speaker and Microphone Schematic................................................................................ 6-3 VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram....................................... 6-5 VHF (146-174 MHz) PCB 8486342Z13-C Receiver Front End Schematic Diagram........ 6-6 VHF (146-174 MHz) Receiver Back End Schematic Diagram ......................................... 6-7 VHF (146-174 MHz) PCB 8486342Z13-C Synthesizer Schematic Diagram.................... 6-8 VHF (146-174 MHz) Voltage Controlled Oscillator Schematic Diagram .......................... 6-9 VHF (146-174 MHz) PCB 8486342Z13-C Transmitter and Power Control Schematic Diagram ........................................................................................................ 6-10 VHF (146-174 MHz) Controller Interconnect Schematic Diagram.................................. 6-11 VHF (146-174 MHz) PCB 8486342Z13-C Microprocessor Circuitry Schematic Diagram ........................................................................................................ 6-12 VHF (146-174 MHz) Audio Circuitry Schematic Diagram............................................... 6-13 VHF (146-174 MHz) PCB 8486342Z13-C DC Regulation Schematic Diagram ............ 6-14 VHF (146-174 MHz) Keypad Board Schematic Diagram ............................................... 6-15 VHF (146-174 MHz) PCB 8486342Z13-C Board Component Side................................ 6-16 VHF (146-174 MHz) Board Solder Side View ................................................................ 6-17 VHF (146-174 MHz) PCB 8486342Z13-C Keypad Board .............................................. 6-18 UHF Receiver Block Diagram........................................................................................... 7-1 UHF Transmitter Block Diagram....................................................................................... 7-3 UHF Frequency Generation Unit Block Diagram.............................................................. 7-5 UHF Synthesizer Block Diagram ...................................................................................... 7-6 UHF VCO Block Diagram ................................................................................................. 7-7 Keypad Block Diagram ..................................................................................................... 7-7 UHF Receiver Block Diagram........................................................................................... 8-1 UHF Transmitter Block Diagram....................................................................................... 8-3 UHF Frequency Generation Unit Block Diagram.............................................................. 8-5 UHF Synthesizer Block Diagram ...................................................................................... 8-6 UHF VCO Block Diagram ................................................................................................. 8-7 Keypad Block Diagram ..................................................................................................... 8-7 UHF Receiver Block Diagram........................................................................................... 9-1 UHF Transmitter Block Diagram....................................................................................... 9-3 UHF Frequency Generation Unit Block Diagram.............................................................. 9-5 UHF Synthesizer Block Diagram ...................................................................................... 9-6 UHF VCO Block Diagram ................................................................................................. 9-7 Keypad Block Diagram ..................................................................................................... 9-7 Six-Layer Circuit Board: Copper Steps in Layer Sequence............................................ 11-3 Speaker and Microphone Schematic.............................................................................. 11-3 UHF (403-440 MHz) Radio Circuit Block Diagram ......................................................... 11-5 UHF (403-440 MHz) PCB 8486635Z03-O Receiver Front End Schematic Diagram ..... 11-6 UHF (403-440 MHz) Receiver Back End Schematic Diagram ....................................... 11-7

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Figure 11-6. Figure 11-7. Figure 11-8.

UHF (403-440 MHz) PCB 8486635Z03-O Synthesizer Schematic Diagram ................. 11-8 UHF (403-440 MHz) Voltage Controlled Oscillator Schematic Diagram ........................ 11-9 UHF (403-440 MHz) PCB 8486635Z03-O Transmitter and Power Control Schematic Diagram ...................................................................................................... 11-10 UHF (403-440 MHz) Controller Interconnect Schematic Diagram ............................... 11-11 UHF (403-440 MHz) PCB 8486635Z03-O Microprocessor Circuitry Schematic Diagram ...................................................................................................... 11-12 UHF (403-440 MHz) Audio Circuitry Schematic Diagram ............................................ 11-13 UHF (403-440 MHz) PCB 8486635Z03-O DC Regulation Schematic Diagram........... 11-14 UHF (403-440 MHz) Keypad Board Schematic Diagram............................................. 11-15 UHF (403-440 MHz) PCB 8486635Z03-O Board Component Side View .................... 11-16 UHF (403-440 MHz) Board Solder Side View .............................................................. 11-17 UHF (403-440 MHz) PCB 8486635Z03-O Keypad Board............................................ 11-18 UHF (438-470 MHz) Radio Circuit Block Diagram ....................................................... 11-23 UHF (438-470 MHz) PCB 8486348Z13-C Receiver Front End Schematic Diagram ... 11-24 UHF (438-470 MHz) Receiver Back End Schematic Diagram ..................................... 11-25 UHF (438-470 MHz) PCB 8486348Z13-C Synthesizer Schematic Diagram ............... 11-26 UHF (438-470 MHz) Voltage Controlled Oscillator Schematic Diagram ...................... 11-27 UHF (438-470 MHz) PCB 8486348Z13-C Transmitter and Power Control Schematic Diagram ...................................................................................................... 11-28 UHF (438-470 MHz) PCB 8486348Z13-C Controller Interconnect Schematic Diagram ...................................................................................................... 11-30 UHF (438-470 MHz) Microprocessor Circuitry Schematic Diagram ............................ 11-31 UHF (438-470 MHz) PCB 8486348Z13-C Audio Circuitry Schematic Diagram ........... 11-32 UHF (438-470 MHz) DC Regulation Schematic Diagram ............................................ 11-33 UHF (438-470 MHz) PCB 8486348Z13-C Keypad Option Schematic Diagram .......... 11-34 UHF (438-470 MHz) Board Component Side View...................................................... 11-35 UHF (438-470 MHz) PCB 8486348Z13-C Board Solder Side View............................. 11-36 UHF (438-470 MHz) Keypad Board ............................................................................. 11-36 UHF (465-495 MHz) Radio Circuit Block Diagram ....................................................... 11-41 UHF (465-495 MHz) PCB8486634Z02-O Receiver Front End Schematic Diagram .... 11-42 UHF (465-495 MHz) Receiver Back End Schematic Diagram ..................................... 11-43 UHF (465-495 MHz) PCB8486634Z02-O Synthesizer Schematic Diagram ................ 11-44 UHF (465-495 MHz) Voltage Controlled Oscillator Schematic Diagram ...................... 11-45 UHF (465-495 MHz) PCB8486634Z02-O Transmitter and Power Control Schematic Diagram ...................................................................................................... 11-46 UHF (465-495 MHz) Controller Interconnect Schematic Diagram ............................... 11-47 UHF (465-495 MHz) PCB8486634Z02-O Microprocessor Circuitry Schematic Diagram ...................................................................................................... 11-48 UHF (465-495 MHz) Audio Circuitry Schematic Diagram ............................................ 11-49 UHF (465-495 MHz) PCB8486634Z02-O DC Regulation Schematic Diagram............ 11-50 UHF (465-495 MHz) Keypad Board Schematic Diagram............................................. 11-51 UHF (465-495 MHz) PCB8486634Z02-O Board Component Side View ..................... 11-52 UHF (465-495 MHz) Board Solder Side View .............................................................. 11-53 UHF (465-495 MHz) PCB8486634Z02-O Keypad Board............................................. 11-54

Figure 11-9. Figure 11-10. Figure 11-11. Figure 11-12. Figure 11-13. Figure 11-14. Figure 11-15. Figure 11-16. Figure 11-17. Figure 11-18. Figure 11-19. Figure 11-20. Figure 11-21. Figure 11-22. Figure 11-23. Figure 11-24. Figure 11-25. Figure 11-26. Figure 11-27. Figure 11-28. Figure 11-29. Figure 11-30. Figure 11-30. Figure 11-31. Figure 11-32. Figure 11-33. Figure 11-34. Figure 11-35. Figure 11-36. Figure 11-37. Figure 11-38. Figure 11-39. Figure 11-40. Figure 11-41. Figure 11-42. Figure 11-43.

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Table of Contents

List of Tables Table 1-1. Table 1-2. Table 1-3. Table 2-1. Table 3-1. Table 3-2. Table 5-1. Table 5-2. Table 5-3. Table 5-4. Table 10-1. Table 10-2. Table 10-3. Table 10-4.

Recommended Test Equipment ....................................................................................... 1-1 Service Aids...................................................................................................................... 1-2 Recommended Service Tools .......................................................................................... 1-2 Voltage Regulators ........................................................................................................... 2-2 Radio Memory Requirements........................................................................................... 3-1 SPI Bus Signal Definitions................................................................................................ 3-2 Troubleshooting Table for Receiver ................................................................................. 5-1 Troubleshooting Table for Synthesizer............................................................................. 5-3 Troubleshooting Table for Transmitter ............................................................................. 5-4 Troubleshooting Table for Board and IC Signals.............................................................. 5-7 Troubleshooting Table for Receiver ............................................................................... 10-1 Troubleshooting Table for Synthesizer........................................................................... 10-3 Troubleshooting Table for Transmitter ........................................................................... 10-4 Troubleshooting Table for Board and IC Signals............................................................ 10-6

Related Publications E-Series Basic Service Manual..........................................................................................................HKLN4215 E-Series Interactive User CD .............................................................................................................HKLN4212 Product Safety and RF Exposure Compliance................................................................................6881095C98

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Chapter 1 Test Equipment, Service Aids, and Service Tools

1.1

Test Equipment Table 1-1 lists test equipment required to service the EP450 Radios. Table 1-1. Recommended Test Equipment

Motorola Part No.

Description

Characteristics This item will substitute for items with an asterisk (*)

Application

R2600 series

System analyzer

Frequency/deviation meter and signal generator for wide-range troubleshooting and alignment

*R1074

Fluke 87 digital multi- True RMS metering, meter 200 kHz frequency counter, 32-segment bar graph with backlit display

Digital voltmeter is recommended for AC/DC voltage and current measurements

Fluke 85 RF probe

500 MHz, 30 VAC max

Use with Fluke 87 digital multimeter for RF voltage measurements.

*R1377

AC voltmeter

1 mV to 300 mV, 10 megaohm input impedance

Audio voltage measurements

R1611

Dual channel 100 MHz oscilloscope (Agillent)

Two-channel, 100 MHz bandwidth, 200 M sample rate/sec, 2 MB memory/ channel

Waveform measurements

S1339

RF millivolt meter

100 ÂľV to 3V RF, 10 kHz to 1 GHz frequency range

RF level measurements

*R1013 or

SINAD meter or

*R1370

SINAD meter with RMS

Without RMS audio voltme- Receiver sensitivity measureter or ments With RMS audio voltmeter

1-2

1.2

Test Equipment, Service Aids, and Service Tools: Service Aids

Service Aids Table 1-2 lists service aids recommended for working on the EP450 Radios. While all of these items are available from Motorola, most are standard shop equipment items, and any equivalent item capable of the same performance may be substituted for the item listed. Table 1-2. Service Aids

Motorola Part No.

Description

Application

RLN4460

Portable Test Set

Enables connection to the audio/accessory jack. Allows switching for radio testing.

RLN4510

Battery Interface

Regulates DC current and voltage between radio and power supply.

RVN4195

Customer Programming Software and Tuner Software on CD Rom

Program customer option and channel data.

AAPMKN4004

Programming Test Cable

Connects radio to RIB (RLN4008).

AAPMKN4003

Radio-to-Radio Cloning Cable

Allows a radio to be duplicated from a master radio by transferring programmed data from the master radio to the other.

RLN4008

Radio Interface Box

Enables communications between the radio and the computer’s serial communications adapter.

5886564Z01

RF Adaptor

Adapts radio’s antenna port to BNC cabling of test equipment.

0180305K08

Shop Battery Eliminator

Interconnects radio to power supply.

HSN9412

Wall-Mounted Power Supply

Used to supply power to the RIB (120 VAC).

3080369B71 or Computer Interface Cable 3080369B72

Use B72 for the IBM PC AT or newer (9-pin serial port). Use B71 for older models (25-pin serial port). Connects the computer’s serial communications adapter to the RIB (PLN4008).

6686533Z01

Knob Remover/Chassis Opener

Used to remove the front cover assembly.

HKN9216

IBM Computer Interface Cable

Connection from computer to RIB.

8180384N65

Housing Eliminator

Allows testing of the radio outside of the housing.

RLN5583

Flashing Adapter

Flashing/CPS cable for Authorized Service Centers

Table 1-3. Recommended Service Tools Motorola Part No.

Description

Application

RSX4043

TORX screwdriver

Tighten and remove chassis screws

6680387A70

T6 TORX bit

Removable TORX screwdriver bit

R1453

Digital readout solder station

Digitally controlled soldering iron

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Test Equipment, Service Aids, and Service Tools: Service Aids

1-3

Table 1-3. Recommended Service Tools (Continued) Motorola Part No.

Description

RLN4062

Hot air workstation, 120 V

0180386A78

Illuminated magnifying glass with lens attachment

0180302E51

Master lens system

0180386A82

Anti-static grounding kit

6684253C72

Straight prober

6680384A98

Brush

1010041A86

Solder (RMA type), 63/67, 0.5mm diameter, 1 lb. spool

0180303E45

SMD tool kit (included with R1319A)

R1319

ChipMaster (110 V)

R1321

ChipMaster (220 V)

Application Tool for hot air soldering/desoldering of surface mounted integrated circuits Illumination and magnification of components Used during all radio assembly and disassembly procedures

Surface mount removal and assembly of surface mounted integrated circuits and/or rework station shields. Includes 5 nozzles.

ChipMaster Nozzles: 6680332E83

PLCC-28* nozzle

6680332E82

PLCC-44* nozzle

6680332E94

PLCC-52 nozzle

6680332E96

PLCC-84 nozzle

6680334E67

QFP-160 nozzle

6680333E46

SOL-18 nozzle

6680332E84

SOIC-20 nozzle

6680332E87

SOL-20J nozzle

6680333E45

SOL-24 nozzle

6680333E55

TSOP-64 nozzle

Soldering and Un-soldering ICâ&#x20AC;&#x2122;s

* Included with ChipMaster packages

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1-4

Test Equipment, Service Aids, and Service Tools: Service Aids

Programming/Test Cable

25 POSITION MALE CONNECTOR

25 POSITION FEMALE CONNECTOR

P3 36.0” CABLE

36.0” CABLE

Figure 1-1. Programming/Test Cable

P2 25 pin Male D Connector Components molded inside

P1 2.5mm stereo and 3.5mm 3.5mm Tip (Speaker +)

3.5mm Sleeve

2.5mm Tip (Microphone)

2.5mm

1 5

Orange

Blue

47 ohm

24 7 33K

20 8 15 16 9

White

2.5mm Center

To Test Box

+ 1UF,16V 5% Spiral Yellow

P3 25 pin Female D Connector 1 15

To Test Box 4 11

3.5mm mono 2.5mm stereo 5

Figure 1-2. Wiring of the Connectors

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Chapter 2 DC Power Distribution

2.1

DC Regulation and Distribution A block diagram of the DC power distribution throughout the radio is shown in Figure 2-1. Accessories 20 pin Connector Audio Power Amplifier

Keypad/Option Board

UNSWB+ 7.5V Battery

SWB+ Fuse

MECH. SWB+ 3.3V Reg.

LI Ion

Vdda Regulator

Vdda

Vddd Regulator

Vddd

Tx Led

Control

MCU, ROM and EEPROM

LCD Driver

ASFIC_CMP

FRACTN VCOBIC

On/Off Switch 5V Regulator

Low Battery Detect

PA, Driver PCIC(ALC)

5V Antenna Switch

RF AMP, IF AMP, RX/TX Buffers IFIC

Figure 2-1. DC Power Distribution Block Diagram Battery voltage enters at connector J301 and is routed through fuse F301 to become USWB+. VR301 protects against ESD, and D301 provides reverse polarity protection. This voltage is routed to: • FET switch Q170 in the TX power control circuit (turned on during transmit) • TX power amplifier module U110 (via R150) • input pins of regulators U310, U320 and U330 • FET switch Q493 (turned on whenever the radio is on) • on-off switch S444 (part of on-off-volume control) to become SWB+

2-2

DC Power Distribution: DC Regulation and Distribution

When the radio is turned on, SWB+ is present and is applied to: • transistor switch Q494 (pins 1 and 6) which turns on Q493 • RX audio power amplifier U490 • voltage divider R420/R421 and port PE0, a microprocessor A/D input which measures battery voltage and radio on/off status The output of FET switch Q493 is applied to the control pins of regulators U310, U320 and U330, turning them on. The following regulators are used: Table 2-1. Voltage Regulators Reference No.

Description

U310

5 V Regulator

U320

Digital 3.3 V Regulator

U330

3 V Regulator

Type TK71750S LP2986 TK71730S

The 5 V source is applied to: • RX back end circuitry • synthesizer super filter input and charge pump supply • RED/GRN LEDs • RX audio buffer U510 • portions of ASFIC U451 The 5 V source is also applied to FET switches Q311 and Q312. Q311 is turned on by Q313 when RX_ENA (from U401 pin 49) is high, and supplies the “5R” source to the RF front end stages Q21Q22, and the VCO RX injection buffer Q280. Q312 is turned on by Q313 when TX_ENA (from U401 pin 50) is high, and supplies the “5T” source to the first transmitter stage Q100. The digital 3.3 volt source from U320 (D_3.3 V) is applied to: • microprocessor U401 • EEPROM U402 • S-RAM U403 • flash ROM U404 The 3 V regulated source from U330 is applied to: • synthesizer IC U201 • VCO/buffer IC U251 • portions of ASFIC U451 • microphone bias circuitry While the radio is turned on, port PH3 (U401 pin 44) is held high. When the radio is turned off, SWB+ is removed and port PE0 (U401 pin 67) goes low, initiating a power-down routine. Port PH3 (pin 44) remains high, keeping the voltage regulators on via Q493 and Q494, until the operating state of the radio has been stored in EEPROM and other turn-off data functions have been completed. PH3 then goes low, turning off Q494 and Q493, and all regulated voltages are removed.

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Chapter 3 Controller Theory of Operation

3.1

Controller The controller provides the following functions: • interface with controls and indicators • serial bus control of major radio circuit blocks • encoding and/or decoding of selective signaling formats such as PL, DPL, MDC-1200 and QuikCall II • interface to CPS programming via the microphone connector • storage of customer-specific information such as channel frequencies, scan lists, and signaling codes • storage of factory tuning parameters such as transmitter power and deviation, receiver squelch sensitivity, and audio level adjustments • power-up, power-down and reset routines Figure 6-3 (VHF) shows the interconnection between the controller and the various other radio blocks. Figure 6-9 show the connections between the following circuit areas which comprise the controller block: • microprocessor circuitry • audio circuitry • DC regulation circuitry (refer to Chapter 2, DC Regulations and Distribution.) • rotary and pushbutton controls and switches • option board interface The majority of the circuitry described below is contained in the (VHF) Microprocessor Circuitry schematic diagrams (Figure 6-10). Portions are also found in the Audio and DC Regulation schematics (Figures 6-11 and 6-12).

3.1.1

Microprocessor Circuitry The microprocessor circuitry includes microprocessor (U401) and associated EEPROM, S-RAM (not used in EP450 models), and Flash ROM memories. The following memory IC's are used: Table 3-1. Radio Memory Requirements Reference No.

Description

Type

U402

Serial EEPROM

AT25128

U403

Static RAM

(not used)

U404

Flash ROM

AT49LV001N_70 V

Size 16K x 8

128K x 8

3-2

Controller Theory of Operation: Controller

3.1.1.1 Memory Usage Radio operation is controlled by software that is stored in external Flash ROM memory (U404). Radio parameters and customer specific information is stored in external EEPROM (U402). The operating status of the radio is maintained in RAM located within the microprocessor. When the radio is turned off, the operating status of the radio is written to EEPROM before operating voltage is removed from the microprocessor. See section “3.1.1.7 Microprocessor Power-Up, Power-Down and Reset Routine” on page 3-3 for a discussion of the power-down routine. Parallel communication with U403 and U404 is via: • address lines A(0)-A(16), from U401 port F ADDR0-ADDR13 and port G XA14-XA16 • data lines D(0)-D(7), from U401 port C DATA0-DATA7 • chip-select for U403, from PH6 (U401 pin 41) • chip-enable for U404, from PH7 (U401 pin 38) • output enable for U404, from PA7 (U401 pin 86) • write-enable for both U403 and U404, from PG7_R/W (U401 pin 4) Serial communication with U402 is via: • the SPI bus (see section “3.1.1.3 Serial Bus Control of Circuit Blocks” on page 3-2) • chip-select for U402, from PD6 (U401 pin 3)

3.1.1.2 Control and Indicator Interface Ports PI3 and PI4 are outputs which control the top-mounted LED indicator. When PI3 is high, the indicator is red. When PI4 is high, the indicator is green. When both are high, the indicator is amber. When both are low, the indicator is off. Pressing the side-mounted PTT button (S441) provides a low to port PJ0 (U401 pin 71), which indicates PTT is asserted. Side-mounted option buttons 1 and 2 (S442 and S443) are connected to Ports PJ6 (pin 77) and PJ7 (pin 78), respectively.

3.1.1.3 Serial Bus Control of Circuit Blocks The microprocessor communicates with other circuit blocks via a SPI (serial peripheral interface) bus using ports PD2 (data into uP), PD3 (data out of uP) and PD4 (clock). The signal names and microprocessor ports are defined in Table 3-2. Table 3-2. SPI Bus Signal Definitions Signal Name

Microprocessor Port

Microprocessor Pin

SPI-DATA_IN

PD2-MISO

U401 Pin 99

SPI_DATA_OUT

PD3-MOSI

U401 pin 100

SPI_CLK

PD4-SCK

U401 pin 1

These signals are routed to: • the audio filter IC (U451) to control internal functions such as gain change between 25 kHz and 12.5 kHz channels, transmit or receive mode, volume adjustment, etc. • the synthesizer IC U201 to load receive and transmit channel frequencies • option board connector J460-1 for internal option configuration and control • serial EEPROM U402 (both SPI_DATA_IN and SPI_DATA_OUT are used).

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Controller Theory of Operation: Controller

3-3

In order for each circuit block to respond only to the data intended for it, each peripheral has its own chip select (or chip enable) line. The device will only respond to data when its enable line is pulled low by one of the microprocessor ports, as follows: • port PD5 (U401 pin 2) for the audio filter IC • port PH0 (U401 pin 47) for the synthesizer IC • port PH4 (U401 pin 43) for the option board/display enable • port PD6 (U401 pin 3) for the serial EEPROM.

3.1.1.4 Interface to RSS Programming The radio can be programmed, or the programmed information can be read, using a computer with CPS (Customer Programming Software) connected to the radio via a RIB (radio interface box) or with the RIB-less cable. Connection to the radio is made via the microphone connector (part of accessory connector J471). The SCI line connects the programming contact (J471 pin 6) to ports PD0_RXD (data into uP, pin 97) and PD1_TXD (data out of uP, pin 98). Transistor Q410 isolates the input and output functions by allowing PD1 to pull the line low, but does not affect incoming data from being read by port PD0. This isolation allows high-speed 2-wire programming via TP401 and TP402 for factory programming and tuning.

3.1.1.5 Storage of Customer-Specific Information Information that has been programmed using CPS, such as channel frequencies or selective signaling codes, are stored in the external EEPROM, where it is retained permanently (unless reprogrammed) without needing DC power applied to the microprocessor.

3.1.1.6 Sensing of Externally-Connected Accessories Port PJ1 is used to detect the presence of externally connected accessories. Port PJ1 (U401 pin 72) is normally low, unless accessories (lapel speaker microphone, lightweight headset, etc.) are used with the radio. This port is used to detect an accessory PTT or auto sensing of a VOX accessory. If VOX is programmed into the radio channel codeplug information, and PJ1 is high during power-up, the radio will activate VOX operation. If a low is present at port PJ1 during power-up, the radio will use this port as an external PTT indicator.

3.1.1.7 Microprocessor Power-Up, Power-Down and Reset Routine On power-up, the microprocessor is held in reset until the digital 3.3 V regulator (U320 pin 5) provides a stable supply voltage. Once the digital supply reaches steady state and releases the reset line (U320 pin 7), the microprocessor begins to start up. The ASFIC_CMP (U451) has already started running and is providing the startup clock to the microprocessor. After reset release by all circuits, the software within the microprocessor begins executing port assignments, RAM checking, and initialization. A fixed delay of 100 ms is added to allow the audio circuitry to settle. Next, an alert beep is generated and the steady state software begins to execute (buttons are read, radio circuits are controlled). When the radio is turned off, SWB+ is removed and port PE0 (U401 pin 67) goes low, initiating a power-down routine. Port PH3 (pin 44) remains high, keeping the voltage regulators on via Q493 and Q494, until the operating state of the radio has been stored in EEPROM. PH3 then goes low, and all regulated voltages are removed.

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Controller Theory of Operation: Controller

The microprocessor reset line (pin 94) can be controlled directly by the digital 3.3 V regulator (U320 pin 7), the microphone jack (part of accessory connector J471) via Q472 and Q471, and the microprocessor itself. U320 pulls the reset line low if the digital 3.3 V source loses regulation. This prevents possible MOS latch-up or overwriting of registers in the microprocessor because the reset line is higher in voltage than the microprocessor VDD ports (U401 pins 12, 39, 59, 88). The microprocessor can drive the reset line low if it detects a fault condition such as an expired watchdog timer, software attempting to execute an infinite loop, unplanned hardware inputs, static discharge, etc. Finally, the Q471 can pull the reset line low during use of the programming cable and CPS by the application of a sufficiently negative voltage to the microphone connector tip contact (J471 pin 4), however this reset method is not utilized.

3.1.1.8 Boot Mode Control When power-up reset occurs, the microprocessor will boot into either normal or flash mode depending on the logic level of ports MODA (U401 pin 58) and MODB (pin 57). The Flash Adapter is a programming accessory which provides negative 9 volts dc via a 1K resistor to microphone connector J471 pin 4. This turns on Q471 and Q472 via D471 and VR472, pulling MODA and MODB low and allowing booting in the flash mode by cycling power to reset the radio. Software upgrades can then performed by loading the new software code into Flash ROM U404.

3.1.1.9 Microprocessor 7.3975 MHz Clock The 7.3975 MHz clock signal (uP_CLK) is provided from the ASFIC_CMP (U451 pin 28). Upon startup the 16.8MHz crystal provides the signal to the ASFIC_CMP, which sends out the uP_CLK at 3.8MHz until a steady-state condition is reached and the clock is increased to 7.3975MHz for the microprocessor.

3.1.1.10 Battery Gauge Various battery types are available having different capacities. The different battery types contain internal resistors connected from the BATT_CHARGE contact to ground (which is routed to the microprocessor as BATT_DETECT). A voltage divider is formed with R255 producing a different DC voltage for each battery type, which is read by microprocessor port PE2 (pin 65). This allows the software to recognize the battery chemistry being used and adjust the battery gauge for best accuracy.

3.1.2

Audio Circuitry

3.1.2.1 Transmit and Receive Low-Level Audio Circuitry The majority of RX and TX audio processing is performed by U451, the Audio Filter IC (ASFIC_CMP), which provides the following functions: • Tone PL/Digital PL encode and decode filtering • Tone PL/Digital PL rejection filter in RX audio path • TX pre-emphasis amplifier • TX audio modulation limiter • Post-limiter (splatter) filter • TX deviation adjust (digitally-controlled attenuators) • Programmable microphone gain attenuator • RX audio volume control (digitally controlled attenuator) • Carrier squelch adjustment (digitally controlled attenuator) • Microprocessor output port expansion

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3-5

â&#x20AC;˘ 2.5 volt dc reference source â&#x20AC;˘ Microprocessor clock generation (from the 16.8 MHz reference oscillator input) The parameters of U451 that are programmable are selected by the microprocessor via the CLOCK (U451 pin 21), DATA (U451 pin 22) and chip enable (U451 pin 20) lines. RX audio buffer U510 amplifies the audio level from the DEMOD output of the IFIC before being applied to the audio filter IC input (DISC, U451 pin 2). The buffer is DC coupled to avoid corruption of low-frequency data waveforms such as DPL. Because such waveforms are polarity sensitive, this buffer is configured as a single-stage inverting amplifier (U510-1 only) for VHF models where highside first injection is used, or is configured as a two-stage non-inverting amplifier (U510-1 and -2) for UHF models using low-side first injection. The gain of the buffer is 1.5 times or 3.5 dB. Volume adjustment is performed by a digital attenuator within U451. The volume control (10KO, part of S444) is connected to D_3.3 V and ground via R506 and R507. When the volume control is rotated, it varies the dc voltage applied to microprocessor A/D input port PE1 (U401 pin 66) between approximately 0 volts dc at minimum volume to 3.3 volts dc at maximum volume. Depending on this voltage, the appropriate setting of the digital volume attenuator is selected. This technique is less susceptible to noise than a conventional analog volume control.

3.1.2.2 Audio Power Amplifier The audio power amplifier IC U490 amplifies receiver audio from U451 pin 41 to a level sufficient to drive a loudspeaker. U490 is a bridge amplifier delivering 3.46 volts rms between pins 5 and 8 without distortion, which is sufficient to develop 500 milliwatts of audio power into the internal 24 ohm speaker or an external 24 ohm load. The audio power amplifier is muted whenever speaker audio is not required to reduce current drain. The audio amp is muted when U451 pin 14 is low. When U451 pin 14 is high, U490 pin 1 is pulled low by Q490, enabling the audio amplifier. Because the power amplifier is a bridge-type, neither speaker terminal is grounded. Care should be taken that any test equipment used to measure the speaker audio voltage does not ground either speaker output terminal, otherwise damage to the audio power amplifier IC may result. When a 24ohm load resistor is used it should be connected between the tip and the sleeve of accessory jack J471 (3.5mm port), never to ground. External SPKR plug insertion mechanically disconnects the internal speaker. Voltage measurements using test equipment that is not isolated from ground may be made from one side of the speaker or load resistor (either the tip or the sleeve of J471) to chassis ground, in which case the voltage indicated will be one half of the voltage applied to the speaker or load resistor. The Motorola RLN4460 Portable Test Set and AAPMKN4004 Programming Test Cable provide the proper interface between the radio's ungrounded audio output and ground-referenced test equipment.

3.1.2.3 Internal Microphone Audio Voice Path Microphone audio from internal microphone is routed from J470-1 via C475, L471, and C470 to the ASFIC_CMP mic audio input (MICINT, U451 pin 46). During transmit, Q470 is turned on by a low at U451 pin 35, providing dc bias for the internal MIC via R478. External MIC plug insertion mechanically disconnects the internal microphone. External MIC audio is coupled through L471 and C470 to the mic audio input. An input level of 10 mV at J471 pin 4 produces 200 mV at the output of U451 pin 40, which corresponds to 60% deviation.

3.1.2.4 PTT Circuits The internal side-mounted PTT switch (S441) is sensed directly by microprocessor port PJ0 (U401 pin 71). External mic PTT is sensed by measuring the current drawn through the accessory connector (J471-4) by the mic cartridge (which is in series with the accessory PTT switch). This current is drawn through the base (pin 5) and emitter (pin 4) of a transistor in Q470, causing its collector (pin 3) to supply a logic-high to microprocessor port PJ1 (pin 72).

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3-6

Controller Theory of Operation: Controller

3.1.2.5 VOX Operation VOX audio accessories do not have a PTT switch. Instead, the mic cartridge is wired directly from J471-4 to ground. If the radio has been programmed for VOX operation and the VOX accessory is plugged in prior to turning the radio on, the current drawn by the cartridge will turn on Q470 (pins 34-5) and a logic high will be seen at port PJ1 at turn-on. The microprocessor then assumes VOX operation, with PTT controlled by the presence of audio at the mic cartridge. A dc voltage proportional to the audio level at the input of the ASFIC_CMP (U451 pin 46) is fed to an A/D input of microprocessor U401 (pin 62). During VOX operation, PTT is activated when the dc level exceeds a preset threshold.

3.1.2.6 Programming and Flashing Through Microphone Jack The ring contact on the 2.5 mm microphone jack is used for reading, programming or re-flashing the radio using CPS. This contact (J471 pin 6) is routed to ports PD0_RXD (data into uP, pin 97) and PD1_TXD (data out of uP, pin 98). Transistor Q410 isolates the input and output functions by allowing PD1 to pull the line low, but does not affect incoming data from being read by port PD0. To re-flash the radio (overwrite the software in the Flash ROM with new software), the radio must power up in the boot mode. This is accomplished by using a flash adapter accessory, which provides SCI communication with the programming ring contact (J471 pin 6) and also allows a negative voltage (negative 9 volts dc via a 1K resistor) to be applied to the tip contact (J471 pin 4). This voltage is sufficient to turn on the base-emitter junction (pins 1 and 2) of Q472 via L471, D471, VR472 and R471. Pin 6 of Q472 goes high, turning on Q471 (pins 3 and 4) and pulling the BOOT_ENA line (ports MODA and MODB of the microprocessor) low. Cycling power generates a reset which causes the radio to boot in the flash mode.

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Chapter 4 VHF Theory Of Operation

4.1

Introduction This chapter provides a detailed theory of operation for the radio components. Schematic diagrams for the circuits described in the following paragraphs are located in Chapter 6 of this manual.

4.2

VHF Receiver The VHF receiver covers the range of 146-174 MHz and provides switchable IF bandwidth for use with 12.5 kHz or 20/25 kHz channel spacing systems. The receiver is divided into two major blocks as shown in Figure 4-1. â&#x20AC;˘ Front End â&#x20AC;˘ Back End

Preselector Filter

RF Amp

Interstage 1st Mixer Filter

Crystal Filter

IF Amp

RX from Antenna Switch Inj Filter First LO from Synthesizer

BW_SEL 6G

Ceramic Resonator

Recovered Audio

6E Switching

Cer Fltr 4E

Demodulator

RSSI

Figure 4-1. VHF Receiver Block Diagram

4.2.1

Receiver Front-End Incoming RF signals from the antenna are first routed through the harmonic filter and antenna switch, part of the transmitter circuitry, before being applied to the receiver front end. The receiver front end consists of a preselector filter, RF amplifier, an interstage filter, and a double-balanced first mixer. The preselector filter is a fixed-tuned 4-pole design using discrete elements (L1-L4 and C1-C9) in a series/shunt resonator configuration. It has a 3 dB bandwidth of 44 MHz, an insertion loss of 2 dB and image attenuation of 40 dB at 235 MHz, with increasing attenuation at higher frequencies. Diode CR1 protects the RF amplifier by limiting excessive RF levels. The output of the filter is matched to the base of RF amplifier Q21, which provides 18 dB of gain and a noise figure of 2 dB. Operating voltage is obtained from the 5R source, which is turned off during transmit to reduce dissipation in Q21. Current mirror Q22 maintains the operating current of Q21

4-2

VHF Theory Of Operation: VHF Receiver

constant at 6.2 mA regardless of device and temperature variations, for optimum dynamic range and noise figure. The output of the RF amplifier is applied to the interstage filter, a fixed-tuned 3-pole series-coupled resonator design having a 3 dB bandwidth of 58 MHz and insertion loss of 1.8 dB. This filter has an image rejection of 42 dB at 235 MHz, with increasing attenuation at higher frequencies. The output of the interstage filter is connected to the passive double-balanced mixer consisting of components T41, T42, and CR41. This mixer has a conversion loss of 7 dB. High-side injection from the frequency synthesizer is filtered by L40-L41 and C40-C44 to remove second harmonic energy that may degrade half-IF spurious rejection performance. The injection filter has a 3 dB bandwidth of 52 MHz and an insertion loss of 1.5 dB. The filtered injection signal is applied to T42 at a level of +6 dBm. The mixer output is applied to a diplexer network (L51-L52, C51, R51) which matches the 44.85 MHz IF signal to crystal filter FL51, and terminates the mixer into 50â&#x201E;Ś at all other frequencies

4.2.2

Receiver Back-End The receiver back end is a dual conversion design. High IF selectivity is provided by FL51, a 4-pole fundamental mode 44.85 MHz crystal filter with a minimum 3 dB bandwidth of + 6.7 kHz, a maximum 20 dB bandwidth of Âą12.5 kHz, and a maximum insertion loss of 3.5 dB. The output is matched to IF amplifier stage Q51 by L53 and C93. Q51 provides 16 dB of gain and a noise figure of 1.8 dB. The dc operating current is 1 mA. The output of Q51 is applied to the input of the receiver IFIC U51. Diode CR51 limits the maximum RF level applied to the IFIC. The IFIC is a low-voltage monolithic FM IF system incorporating a mixer/oscillator, two limiting IF amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage regulator and audio and RSSI op amps. The second LO frequency, 44.395 MHz, is determined by Y51. The second mixer converts the 44.85 MHz high IF frequency to 455 kHz. Additional IF selectivity is provided by two ceramic filters, FL52 (between the second mixer and IF amp) and FL53 or FL54 (between the IF amp and the limiter input). The wider filter FL53 is used for 20/25 kHz channel spacing, and the narrower filter FL54 is used for 12.5 kHz channels. When the BW_SEL line is high, the two upper diodes in packages D51 and D52 are forward biased, selecting FL53 for 20/25 kHz channels. When the BW_SEL line is low, the two lower diodes in packages D51 and D52 are forward biased, selecting FL54 for 12.5 kHz channels. FL52

November 24, 2003

FL53

FL54

Number of Elements:

Insertion Loss:

4 dB

6 dB Bandwidth:

15 kHz

9 kHz

50 dB Bandwidth:

30 kHz

22 kHz

Stopband Rejection:

27 dB

47 dB

HKLN4216A

VHF Theory Of Operation: VHF Transmitter

4.3

4-3

VHF Transmitter The VHF transmitter covers the range of 146-174 MHz. Depending on model, the output power of the transmitter is either switchable on a per-channel basis between high power (5 watts) and low power (1 watt). The transmitter is divided into four major blocks as shown in Figure 4-2. • • • •

Power Amplifier Harmonic Filter Antenna Matching Network Power Control USWB+

TX_ENA Power Control PWR_SET VGG

VDD

5T TX_INJ (From VCO)

Q100

Power Amplifier Module U110

RX_IN (To Receiver)

Harmonic Filter

Antenna Switch

J140 Antenna Jack Antenna

Antenna Matching Network

Figure 4-2. VHF Transmitter Block Diagram

4.3.1

Transmit Power Amplifier The transmitter power amplifier has three stages of amplification. The first stage, Q100, operates in Class AB from the 5T source. It provides 13 dB of gain and an output of 20 mW. The current drain is typically 25mA. Components C105-C107 and L103 match the output of Q100 to the 50Ω input of the module U110. U110 is a two stage Silicon MOS FET power amplifier module. Drain voltage is obtained from UNSW B+ after being routed through current-sense resistor R150 in the power control circuit. The output power of the module is controlled by varying the DC gate bias on U110 pin 2 (VGG).

4.3.2

Antenna Switch The antenna switch consists of two pin diodes, D120 and D121. In the receive mode, both diodes are off. Signals applied at the antenna or at jack J140 are routed, via the harmonic filter, through network C122-C124 and L121, to the receiver input. In the transmit mode, Q170 is on and TXB+ is present, forward-biasing both diodes into conduction. The diode current is 50 mA, set by R120-R122. The transmitter RF from U110 is routed through D120, and via the harmonic filter to the antenna jack. D121 conducts, shunting RF power and preventing it from reaching the receiver. L121 is selected to appear as a 1/4 wave at VHF, so that the low impedance of D121 appears as a high impedance at the junction of D120 and the harmonic filter input. This provides a high series impedance and low shunt impedance divider between the power amplifier output and receiver input.

4.3.3

Harmonic Filter The harmonic filter consists of components C130-C136 and L130-L132. The harmonic filter is a seven-pole elliptical low-pass configuration, optimized for low insertion loss, with a 3 dB frequency of approximately 210 MHz and typically less than 0.8 dB insertion loss in the passband.

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4-4

4.3.4

VHF Theory Of Operation: VHF Frequency Generation Circuitry

Antenna Matching Network The harmonic filter presents a 50 â&#x201E;Ś impedance to antenna jack J140. A matching network, made up of C140-C141 and L140, is used to match the antenna impedance to the harmonic filter. This optimizes the performance of the transmitter and receiver into the impedance presented by the antenna, significantly improving the antenna's efficiency.

4.3.5

Power Control The power control circuit is a dc-coupled amplifier whose output is the dc gate bias voltage (VGG) applied to the two stages of the RF power amplifier U110. The output power of the transmitter is adjusted by varying the setting of the power-set DAC contained in the ASFICcmp IC (DACG, U451 pin 6). This PWR_SET voltage is applied to U150 pin 3. Stage U150-2 compares the voltage drop across current sense resistor R150 to the voltage drop across resistor R151 caused by current flow through Q150, and adjusts its output (pin 7) to maintain equal voltages at pins 5 and 6. Thus the current flow through Q150, and hence its emitter voltage, is proportional to the current drawn by stage U110, which is in turn proportional to the transmitter output power. The emitter voltage of Q150 is applied to U150 pin 2, where it is compared to the power set voltage PWR_SET at pin 3. The output of U150 pin 1 is divided by R110 and R111 and applied as a gate voltage to the power amplifier U110. By varying this gate voltage as needed to keep the voltages at U150 pins 2 and 3 equal, power is maintained at the desired setting. Excessive final current, for example due to antenna mismatch, causes a lowering of the voltage at U150 pin 6, an increased voltage at pin 2, and a lowering of the voltage at pin 1 and of the gate voltage VGG. This prevents damage to the final stage due to excessive current.

4.4

VHF Frequency Generation Circuitry The frequency generation system, shown in Figure 4-3, is composed of two circuit blocks, the Fractional-N synthesizer IC U201, the VCO/Buffer IC U251, and associated circuitry. Figure 4-4 shows the peripheral interconnect and support circuitry used in the synthesizer block, and Figure 4-5 details the internal circuitry of the VCOBIC and its interconnections to the surrounding components. Refer to the schematic to identify reference designators. The Fractional-N synthesizer is powered by regulated 5 V and 3 V provided by U310 and U330 respectively. 5 V is applied to U201 pins 13 and 30, and 3 V is applied to pins 5, 20, 34 and 36. The synthesizer in turn generates a super-filtered 4.5 V supply (VSF, from pin 28) to power U251. In addition to the VCO, the synthesizer also interfaces with the logic and ASFICcmp circuits. Programming for the synthesizer is accomplished through the microprocessor SPI_DATA_OUT, SPI_CLK, and SYNTH_CS (chip select) lines (U409 pins 100, 1 and 47 respectively). A logic high (3 V) from U201 pin 4 indicates to the microprocessor that the synthesizer is locked.

November 24, 2003

HKLN4216A

VHF Theory Of Operation: VHF Frequency Generation Circuitry

4-5

Transmit modulation from the ASFICcmp (U451 pin 40) is applied to U201 pin 10 (MOD_IN). An electronic attenuator in the ASFICcmp adjusts overall transmitter deviation by varying the audio level applied to the synthesizer IC. Internally the audio is digitized by the Fractional-N synthesizer and applied to the loop divider to provide the low-port modulation. The audio is also routed through an internal attenuator for the purpose of balancing the low port and high port modulation and reducing the deviation by 6 dB for 12.5 kHz channels, and is available at U201 pin 41 (VCO_MOD). This audio signal is routed to the VCO's modulator.

Voltage Multiplier

TRB

VCP Vmult1

Rx VCO Circuit

Aux3

Synthesizer U201

Vmult2

16.8 MHz Ref. Osc.

Buffer Q280 Rx Out

VCOBIC U251

Loop Filter MOD Out

Modulating Signal

To Mixer

Tx Out

To PA Driver

Tx VCO Circuit

Figure 4-3. VHF Frequency Generation Unit Block Diagram

4.4.1

Fractional-N Synthesizer The Fractional-N synthesizer, shown in Figure 4-4, uses a 16.8 MHz crystal (Y201) to provide the reference frequency for the system. External components C201-C203, R202 and D201 are also part of the temperature-compensated oscillator circuit. The dc voltage applied to varactor D201 from U201 pin 25 is determined by a temperature-compensation algorithm within U201, and is specific to each crystal Y201, based on a unique code assigned to the crystal that identifies its temperature characteristics. Stability is better than 2.5 ppm over temperatures of -30 to 60 째C. Softwareprogrammable electronic frequency adjustment is achieved by an internal DAC which provides a frequency adjustment voltage from U201 pin 25 to varactor D201. The synthesizer IC U201 further divides the 16.8 MHz signal to 2.1 MHz, 2.225 MHz, or 2.4 MHz for use as reference frequencies. It also provides a buffered 16.8 MHz signal at U201 pin 19 for use by the ASFICcmp. To achieve fast locking of the synthesizer, an internal adapt charge pump provides higher current at U201 pin 45 to quickly force the synthesizer within lock range. The required frequency is then locked by the normal mode charge pump at pin 43. A loop filter (C243-C245 and R243-R245) removes noise and spurs from the steering voltage applied to the VCO varactors, with additional filtering located in the VCO circuit. Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier made up of C221-C224 and D220-D221. Two 3 V square waves from U201 pins 14-15 provide the drive signals for the voltage multiplier, which generates 12.1 V at U201 pin 47. This voltage is filtered by C225-C228.

HKLN4216A

November 24, 2003

4-6

VHF Theory Of Operation: VHF Frequency Generation Circuitry

One of the auxiliary outputs of the synthesizer IC (AUX3, U201 pin 2) provides the TRB signal which determines the operating mode of the VCO, either receive or transmit.

DATA (U401 Pin 100) CLOCK (U401 Pin 1) SYNTH_CS (U401 Pin 47) MOD IN (U451 Pin 40) +5V (U310 Pin 5) +3V (U330 Pin 5)

7 8 9 10

LOCK

DATA

FREFOUT

CLK CEX

GND

MODIN

IOUT

VCC , 5V

IADAPT

13,30 5,20,34,36 23

Reference Oscillator

U201 Low Voltage MODOUT Fractional-N Synthesizer

VDD , 3V XTAL1

AUX3 25 32 47

WARP

SFOUT

PREIN

BIAS1

VCP VMULT2 VMULT1

BIAS2

LOCK (U401 Pin 56)

FREF (U451 Pin 34)

6,22,23,24 43 45

2-Pole Loop Filter

Steering Line LO RF Injection

VCO Mod 2

TRB

Filtered 5V

Voltage Controlled Oscillator

40 39

TX RF Injection (First Stage of PA)

Voltage Multiplier Prescaler In

Figure 4-4. VHF Synthesizer Block Diagram

4.4.2

Voltage Controlled Oscillator (VCO) The VCOBIC (U251), shown in Figure 4-5, in conjunction with the Fractional-N synthesizer (U201) generates RF in both the receive and the transmit modes of operation. The TRB line (U251 pin 19) determines which oscillator and buffer are enabled. A sample of the RF signal from the enabled oscillator is routed from U251 pin 12 through a low pass filter, to the prescaler input of the synthesizer IC (U201 pin 32). After frequency comparison in the synthesizer, a resultant DC control voltage is used to steer the VCO frequency. When the PLL is locked on frequency, this voltage can vary between 3 V and 9 V. L251 and C251 further attenuate noise and spurs on the steering line voltage. In the receive mode, the TRB line (U251 pin 19) is low. This activates the receive VCO and the receive buffer of U251, which operate within the range of 190.85 to 218.85 MHz. The VCO frequency is determined by tank inductor L254, C253-C257, and varactor D251. The buffered RF signal at U251 pin 8 is further amplified by Q280 and applied as RX_INJ to the low-pass injection filter in the receiver front end circuit. In the transmit mode, U251-19 is driven high by U201 pin 2, enabling the transmit VCO and buffer. The 146-174 MHz RF signal from U251 pin 10 is applied as TX_INJ to the input of the transmitter circuit via matching network C290-C291 and L291. TX VCO frequency is determined by L264, C263-

November 24, 2003

HKLN4216A

VHF Theory Of Operation: Keypad

4-7

C267, and varactor D262. High-port audio modulation from the synthesizer IC is applied as VCO_MOD to varactor D261 which modulates the transmit VCO. AUX3 (U201 Pin 2) TRB_IN Pin 20

Pin 19

Pin 7

TX/RX/BS Switching Network

Pin 13

NC V_SF (U201 Pin 28)

Pin 3

Steer Line Voltage (V_STEER)

Vcc-Superfilter

Presc

Pin 12

U251 VCOBIC Pin 8

RX RX

RX Tank

RX VCO Circuit

TX Tank

TX VCO Circuit

Rx Active Bias

RX INJ

Pin 14

Pin 6

VCC Buffers

Pin 16

Tx Active Bias

Matching Network

Vsens Circuit Vcc-Logic

3V (U330 Pin 5)

Pin 10

Pin 15

Pin 18

U201 Pin 32

Buffer Q280

Pin 4 Collector/RF in Pin 5

Prescaler Out

Pin 2 Rx-I adjust

TX INJ

Pin 1 Pins 9,11,17 Tx-I adjust

V_SF (U201 Pin 28)

3V (U330 Pin 5)

Figure 4-5. VHF VCO Block Diagram

4.5

Keypad

Keypad Button

Keypad Column

Keypad Row Keypad Column

28 Pin Connector (Main Board)

Keypad Row

28 Pin Connector (keypad Board)

The keypad block diagram is shown in Figure 4-6. Pressing a key creates two distinct voltages KEYPAD_ROW and KEYPAD_COL. These voltages are sent directly to the radioâ&#x20AC;&#x2122;s microprocessor on the main board. The microprocessor then interprets the voltage for KEYPAD_ROW and KEYPAD_COL for each key press.

Keypad Row Keypad Column

MCP

Figure 4-6. Keypad Block Diagram

HKLN4216A

November 24, 2003

4-8

VHF Theory Of Operation: Keypad

Notes:

November 24, 2003

HKLN4216A

Chapter 5 VHF Troubleshooting Tables

5.1

Troubleshooting Table for Receiver Table 5-1. Troubleshooting Table for Receiver

Symptom Radio Dead (no turn-on beep, no LED indication)

Possible Causes

Procedure

Corrective Action

1. Battery dead or defective.

Substitute known good battery or battery eliminator.

Charge or replace battery.

2. Defective battery contacts.

Inspect battery contacts for corrosion or bent terminals.

Clean/repair/replace J301.

3. Blown fuse

Check voltage on each side of fuse. If blown, 0 VDC after fuse.

Check for short on output, check D301, VR301, troubleshoot/repair as needed, replace fuse.

4. DC switching fault

Verify battery voltage present at S444 pin 5 when radio is on.

Check/replace on-off-volume control S444.

Verify Q494-1 is at least 1 V dc, Q494-6 is ~0.1 V dc, Q493-3 is at Vbatt.

Troubleshoot/replace Q493/4.

Verify clock input to U401-90 (EXTAL) is 7.3975 MHz using high impedance probe. If clock is 3.8 MHz, check for shorts on U401 pins. Connect RIB to verify communication via CPS.

Verify 16.8 MHz signal at U45134. If OK, troubleshoot/replace U451. If not present, troubleshoot U201 Synthesizer. Reprogram/reflash as needed.

Verify U401-94 (RESET) is high.

If RESET is Low, troubleshoot regulator U320. Check for shorts at U401 pins. Replace U401. Reprogram as needed.

Verify U310-5 is 5 V dc, U320-5 is 3.3 V dc, U330-5 is 3 V dc.

Check for shorts on outputs, troubleshoot/repair as needed, replace faulty regulator.

5. Microprocessor not starting up.

6. Regulator fault

5-2

VHF Troubleshooting Tables: Troubleshooting Table for Receiver

Table 5-1. Troubleshooting Table for Receiver (Continued) Symptom No Audio

No Receive (squelch noise present)

Possible Causes

Corrective Action

1. Synthesizer out of lock Verify U201-4 is at 3 V dc.

Troubleshoot synthesizer/VCO circuits.

2. Defective IFIC

Verify audio is present at U51-8.

Check Q70, Y70, U51.

3. RX audio buffer fault

Verify audio is present at U451-2.

Check U510 and associated parts.

4. ASFIC fault

Verify audio is present at U451-41. Verify U451-14 is high.

Check squelch setting, PL/DPL programming. Troubleshoot/ replace U451.

5. Audio PA fault

Verify U490-1 is <0.2 V dc.

Check Q490.

Verify audio is present at U490-5 and 8.

Check/replace U490.

6. Defective speaker

Verify audio is present at speaker terminals.

If not, check continuity of J471-2 and 3. Check J491. If yes, replace speaker.

1. No first injection

Check that RF level at T42-6 is approx +6 dBm.

Check injection filter C40-44, L40-41.

Check that RF level at U251-8 is at least -8 dBm.

If yes, check Q280 and associated parts. If no, check U251 and components on pins 5 and 6.

Verify U401-49 is high in RX.

Check/replace U401

Verify Q311 gate is 0 V dc in RX

Check/replace Q313.

Verify Q311 drain is 5 V dc in RX.

Check for shorts, check/replace Q311.

3. Harmonic filter or antenna switch fault

Apply on-channel 100 mV RF signal at antenna port. Verify RF level at jct. C1/C2 per schematic.

Check TX harmonic filter, D120121. Should be 0 V dc on D120121.

4. Back end fault

Apply on-channel 100 mV RF signal at antenna port. Measure RF levels from FL51 through U51.

Check components prior to lossof-signal point.

5. No second injection

Measure RF level at U51-3, verify approx. 280 mV rms.

If dc voltages at U51-3 and 4 are OK, check Y51 and associated parts. If not replace U51.

2. No 5R source.

November 24, 2003

Procedure

HKLN4216A

VHF Troubleshooting Tables: Troubleshooting Table for Synthesizer

5.2

5-3

Troubleshooting Table for Synthesizer Table 5-2. Troubleshooting Table for Synthesizer

Symptom Synthesizer Out of Lock (RX mode only)

Synthesizer Out of Lock (TX mode only)

Synthesizer Out of Lock (RX and TX modes)

Possible Causes 1. VCO fault

Corrective Action

Verify oscillator is working, check RF level at U251-10 per schematic.

Check VCO tank components connected to U251-5 and 6.

Check dc voltages at U251 pin 2 through 6 and 10 per Table 5-4.

Check for shorts/opens, replace U251.

Verify steering line voltage is between ~3 V and 10 V.

Check D251 and associated components.

2. Synthesizer fault

Verify TRB line (from U201-2 to U251-19) is low in RX mode

Check for shorts, check U201 voltages per Table 5-4, replace U201 if incorrect.

3. Programming fault

Verify RX channel programming is correct.

Re-program if necessary.

1. VCO fault

Verify oscillator is working, check RF level at U251-10 per schematic.

Check VCO tank components connected to U251-15 and 16.

Check dc voltages at U251 pins 1,3,4,10,15,16 per Table 5-4.

Check for shorts/opens, replace U251.

Verify steering line voltage is between ~3 V and 10 V.

Check D261 and associated components.

2. Synthesizer fault

Verify TRB line (U201-2 to U251-19) is high (3 V) in TX mode

Check for shorts, check U201 voltages per Table 5-4, replace U201 if incorrect.

3. Programming fault

Verify TX channel programming is correct.

Re-program if necessary.

1. VCO fault

Check that RF level at U251-12 is at least 150 mV (VHF) or -12 to -20 dBm (UHF)

If low/missing, check L276, C276-7, R276.

2. Synthesizer fault

Check that RF level at U201-32 is at least 150 mV (VHF) or -12 to -20 dBm (UHF).

If correct, check/replace U201. If incorrect, check R248 and C241.

Verify steering line voltage is between ~3 V and 10 V.

Check loop filter components R243-5 and C243-5.

Verify 4.5 V dc at U201-28.

Check C231-233, etc., for shorts. If OK check/replace U201.

Verify 12.1 V dc at U201-47

Check for 3 V 1.05 MHz sq waves at U201-14 and 15. Check C218-228, D220-221.

Verify channel programming is correct.

Re-program if necessary.

3. DC voltage fault

4. Programming fault

HKLN4216A

Procedure

November 24, 2003

5-4

VHF Troubleshooting Tables: Troubleshooting Table for Transmitter

5.3

Troubleshooting Table for Transmitter Table 5-3. Troubleshooting Table for Transmitter

Symptom No Transmit (no TX LED indication)

No Transmit (TX LED indication OK)

November 24, 2003

Possible Causes

Procedure

Corrective Action

1. PTT switch defective.

Verify U401-71 goes low when PTT is pressed.

Replace PTT switch S441.

2. EXT MIC PTT fault

Verify U401-72 goes low when J471- Check/replace Q470, L471 etc. 4 is grounded.

1. Synthesizer out of lock Refer to Table 5-2.

Refer to Table 5-2.

2. No TX_ENABLE

Verify U401-50 is high when pin 71 or 72 is low.

Check/replace U401.

3. TX DC switch fault

Verify Q171-C is 0 V in TX.

Replace Q171.

Verify Q170-C is at Vbatt in TX.

Check for shorts, replace Q170.

4. Power control fault

Check Q150 and U150 dc voltages per schematic and Table 5-4.

Repair/replace defective components

5. No TX injection

Check that RF level at jct. R100/ R101 per schematic.

Check U251, L291-292, C290291.

6. No 5T source

Verify Q312 gate is 0 V dc in TX

Check/replace Q313.

Verify Q312 drain is 5 V dc in TX.

Check for shorts, check/replace Q312.

7. TX gain stage failure

Check RF levels at Q100 and U110 per schematic.

Troubleshoot Q100/U110 and associated circuitry.

8. Antenna switch failure

Verify dc voltage at jct. R122/L120 is approx 1.5 V.

Check/replace D120-121, L120121, R120-122, etc.

HKLN4216A

VHF Troubleshooting Tables: Troubleshooting Table for Transmitter

5-5

Table 5-3. Troubleshooting Table for Transmitter (Continued) Symptom Low Power

Possible Causes

Procedure

1. Low TX injection

Check that RF level at jct. R100/ R101 per schematic.

Check U251, L291-292, C290291.

2. Low gain in TX stage

Verify dc voltage at Q100-E is ~1.3 V (VHF) or ~0.5 V (UHF).

Verify 5T voltage is correct. Troubleshoot Q100 circuitry.

Verify that RF level at U110-1 is approx. 1 V (VHF) or 1.6 V (UHF).

Troubleshoot Q100 circuitry. Check/replace Q100.

Verify that the dc voltage at PWR_SET (R162) is approx 1.8 V dc (at 1 watt) to 2.6 V dc (at 4-5 watts).

Check programming. Troubleshoot controller circuitry. Check/ replace U451.

3. Incorrect control voltage

Verify that the dc voltage at U110-2 is approx 2-3 V dc (at 1 watt) to 3-4 V dc (at 4-5 watts). (See schematic.)

Poor TX range, conducted power OK

No internal mic audio (EXT MIC audio OK)

HKLN4216A

Corrective Action

Troubleshoot U150, Q150 and associated circuitry.

4. Antenna switch defect

Verify dc voltage at jct. R122/L120 (VHF) or R121/L120 (UHF) is approx 1.7 V. Note: Do not attempt to measure RF or DC voltages at the diodes. Damage to test equipment may occur.

Check/replace D120-121, L120121, R120-122, etc.

5. Harmonic filter defect

Visually inspect components C130137, L130-132. Check dc continuity of L130-132 in RX mode only.

Repair/replace if necessary.

1. RF test jack defective

Verify continuity of J140 pins 3 and 4 in RX mode only.

Replace J140.

2. Antenna matching net- Visually inspect components C140work fault 141, L140 or L141. Check dc continuity of L140 or L141in RX mode only.

Repair/replace if necessary.

3. Defective or wrong antenna

Verify correct antenna is installed. Try another antenna.

Replace antenna.

1. Mic bias fault

Verify U451-35 is low when side PTT is pressed.

Check/replace U451.

Verify Q470-6 is high when side PTT button is pressed.

Check/replace R474, R476, and Q470.

2. Defective mic

Verify approx 1.8 V dc across cartridge when side PTT button is pressed. Verify audio present (~10 mV rms) when speaking into mic.

Check mic connector and R478. Replace mic cartridge.

3. Defective mic jack

Verify continuity between J471 pins 4 and 5.

Replace J471.

November 24, 2003

5-6

VHF Troubleshooting Tables: Troubleshooting Table for Transmitter

Table 5-3. Troubleshooting Table for Transmitter (Continued) Symptom No EXT MIC audio

Possible Causes

Procedure

1. Mic bias fault

Verify approx 1.8 V dc across EXT MIC cartridge in TX mode. Verify audio present (~10 mV rms) when speaking into mic.

Check Q470. R475, R477, L471. Check VR473, VR475, D470 for shorts.

2. Audio path fault

Verify mic audio present (~10 mV rms) at U451-46.

Check L471, C470.

Verify amplified mic audio present (~200 mV rms) at U451-40.

Check/replace U451.

3. Defective audio acces- Try another accessory. sory

November 24, 2003

Corrective Action

Replace defective accessory.

HKLN4216A

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

5.4

5-7

Troubleshooting Table for Board and IC Signals Table 5-4. Troubleshooting Table for Board and IC Signals

IC Designator

U51 IFIC

RF input 44.85 MHz

1.20

RF input decoupling

1.20

2nd LO osc output

4.02

2nd LO osc input

4.60

RSSI output

0.74

Vcc

4.70

Audio feedback

0.89

Audio output

1.44

DEMOD to stage U510

RSSI feedback

0.74

(no received signal)

Quad detector input

2.22

Limiter output

1.25

Limiter decoupling 2

1.30

Limiter decoupling 1

1.30

Limiter input

1.28

Ground

GND

IF amp output

1.22

IF amp decoupling 2

1.26

IF amp input

1.26

IF amp decoupling 1

1.26

2nd mixer output

3.09

Inverter 1 input

(25 kHz mode)

Inverter 2 output

(25 kHz mode)

Inverter 3 input (NU)

GND

Ground

GND

Inverter 3 output (NU)

4.96

Inverter 2 input

3.00

(25 kHz mode)

Inverter 1 output

4.95

(25 kHz mode)

Vcc

4.96

U52 BW Select Switch

HKLN4216A

Pin Function

DC Voltage

Comments (Condition)

(no received signal)

November 24, 2003

5-8

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 5-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U110 RF Power Amp

RF input

Vgg (gate bias)

Vdd

RF output

Ground

Unit 1 output

4.20 (typ)

(TX mode) (5.8 V typ at VHF)

Unit 1 (-) input

2.39 (typ)

(TX mode)

Unit 1 (+) input

2.39 (typ)

(TX mode)

Ground

Unit 2 (+) input

3.30 (typ)

(TX mode)

Unit 2 (-) input

3.35 (typ)

(TX mode)

Unit 2 output

2.23 (typ)

(TX mode)

Vcc

6.79

(TX mode)

AUX2 output (NU)

AUX3 output (TRB)

0.03

AUX4 output (NU)

Lock detect output

2.98

PD Vdd

2.98

Digital ground

GND

Serial data input

3.23

Serial clock input

Synth chip select

3.23

From U401-47

Modulation input

1.50

From U451-40

VMULT4 (NU)

2.98

VMULT3 (NU)

VRO

4.96

VMULT2

1.49

VMULT1

1.49

INDMULT (NU)

NC1

Ref select (NU)

Buffered 16.8 MHz out

1.54

Analog Vdd

3.00

V bypass (NU)

1.55

Analog ground

GND

Ref osc XTAL1

2.07

U150 Dual Opamp

U201 Freq Synthesizer

November 24, 2003

Pin Function

DC Voltage 0 2.65 (typ) 6.59 --

Comments (Condition) (TX mode) (TX mode) (4.25 V typ at VHF) (TX mode) Do not measure

GND

To U251-19 (RX mode)

To U401-56

HKLN4216A

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

5-9

Table 5-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U201 Freq Synthesizer

Ref osc XTAL2

Ref osc warp output

3.00

Superfilter cap

4.48

Superfilter base (NU)

3.76

Superfilter output

4.52

NC2

Superfilter input

NC3

Prescaler input

1.97

Prescaler ground

GND

Prescaler Vdd

2.99

Prescaler Vref (NU)

1.97

Digital Vdd

2.99

TEST1 (NU)

0.01

TEST2 (NU)

Bias 2

3.38 (typ)

(1.34 V in TX mode)

Bias 1

1.50 (typ)

(3.20 V in TX mode)

Modulation output

3.42 (typ)

(1.62 V typ in TX mode)

CCOMP (NU)

Steering line IOUT

PD ground

Steering line IADAPT

Adapt switch (NU)

Voltage from charge pump

12.8

AUX1 output (NU)

2.98

TX VCO current adjust

4.50

RX VCO current adjust

4.35

Superfiltered input

4.51

Collector RF in amp

4.35

RX VCO base

1.27

RX VCO emitter

0.48

RX switch output (NU)

RX buffered VCO output

3.36

GND_FLAG

GND

TX buffered VCO output

3.36

GND_BUFFERS

GND

U251 VCO / Buffer

HKLN4216A

Pin Function

DC Voltage

Comments (Condition)

0 4.96 0

0.05 9.62 (typ)

Depends on frequency

GND 9.62 (typ)

Depends on frequency

November 24, 2003

5-10

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 5-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U251 VCO / Buffer

Prescaler output

2.26

TX switch output (NU)

0.06

Vcc_BUFFERS

3.00

TX VCO emitter

(RX mode)

TX VCO base

(RX mode)

GND_LOGIC

GND

Vcc_LOGIC

3.00

TRB input

0.03

FLIP input

GND

Vin

7.48

Ground

GND

Control input

7.48

Bypass capacitor

1.26

Vout

4.96

Ground

GND

Feedback

1.23

Tap (NU)

Vin

7.48

Vout

3.23

Sense (NU)

Error (reset output)

3.20

Shutdown input

7.48

Vin

7.48

Ground

GND

Control input

7.48

Bypass capacitor

1.26

Vout

3.00

PD4_SCK serial clock input

PD5_SS

3.23

ASFIC chip select

PD6_VLIN

3.23

EEPROM chip select

PG7_R_W

3.21

PG6_AS

3.23

PG0_XA13

3.23

PB7_ADDR15

0.026

PB6_ADDR14

0.028

PB3_ADDR11

3.06

U310 5 V Regulator

U320 3.3 V Regulator

U330 3 V Regulator

U401 Microprocessor

November 24, 2003

Pin Function

DC Voltage

Comments (Condition)

From U201-2 (RX mode)

HKLN4216A

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

5-11

Table 5-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U401 Microprocessor

PB1_ADDR9

3.05

PB2_ADDR10

0.16

VDD

3.23

VSS

GND

PBO_ADDR8

3.05

PB5_ADDR13

0.13

PG1_XA14

0.20

PG4_XA17

3.17

PG5_XA18

PG3_XA16

3.21

PG2_XA15

0.30

PB4_ADDR12

0.22

PF7_ADDR7

3.03

PF6_ADDR6

3.08

PF5_ADDR5

3.06

PF4_ADDR4

0.16

PF3_ADDR3

0.26

PF2_ADDR2

3.06

PF1_ADDR1

3.06

PFO_ADDR0

3.05

PC0_DATA0

0.69

PC1_DATA1

0.96

PC2_DATA2

1.10

PC3_DATA3

0.81

PC4_DATA4

0.62

PC5_DATA5

0.68

PC6_DATA6

0.67

PC7_DATA7

0.73

PH7_CSPROG

3.05

VDDL

3.23

VSSL

GND

PH6_CSGP2

3.23

PH5_CSGP1

3.23

PH4_CSIO

PH3_PW4

3.21

PH2_PW3

HKLN4216A

Pin Function

DC Voltage

Comments (Condition)

On/off control output

November 24, 2003

5-12

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 5-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U401 Microprocessor

PH1_PW2

3.00

PH0_PW1

3.23

XIRQ

3.00

PI7

1.48

RX enable

PI6

0.01

TX enable

PI5

3.23

PI4

Green LED enable

PI3

Red LED enable

PI2

PI1

PI0

2.98

Lock detect from U201-4

MODB_VSTBY

3.22

Boot mode enable

MODA_LIR

3.12

AVDD

3.23

PE7_AN7

3.20

PE6_AN6

3.20

PE5_AN5

2.91

VOX threshold detect

PE4_AN4

0.73

RSSI input

PE3_AN3

0.14

PE2_AN2

1.62

PE1_AN1

0 - 3.3 V

PE0_AN0

2.48

VRL

VRH

3.20

AVSS

GND

PJ0_CSGP3

3.23

PJ1_CSGP4

PJ2

3.23

PJ3

3.23

PJ4

3.23

PJ5

PJ6

3.23

Bottom option button

PJ7

3.23

Top option button

PA0_IC3

PA1_IC2

1.57

PA2_IC1

3.00

November 24, 2003

Pin Function

DC Voltage

Comments (Condition)

Synth chip select

Volume control wiper 33% of battery voltage

Side PTT button External MIC PTT

HKLN4216A

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

5-13

Table 5-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U401 Microprocessor

PA3_IC4_OC5_OC1

PA4_OC4_OC1

Squelch detect input

PA5_OC3_OC1

Channel activity input

PA6_OC2_OC1

PA7_PA1_OC1

VSSR

GND

VDDR

3.23

ECLK (NU)

1.60

EXTAL

1.70

Clock from U451-28

XTAL

1.40

Not used

VDDSYN

XFC (NU)

RESET

3.20

LVOUT

IRQ

3.20

PD0_RXD

3.23

PD1_TXD

1.9

PD2_MISO

100

PD3_MOSI

3.23

Chip select

3.23

Serial data out

Write protect

3.23

Vss

GND

Serial data in

3.23

Serial clock

Hold

3.23

Vcc

3.23

A11

3.06

3.08

3.05

A13

0.13

A14

0.31

3.17

EN_WE

3.21

Vcc

3.23

RESET

3.20

U402 EEPROM

U404 Flash ROM

HKLN4216A

Pin Function

DC Voltage

Comments (Condition)

3.00

From U320

From U401-3

From U401-4

November 24, 2003

5-14

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 5-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U404 Flash ROM

A16

3.17

A15

0.30

A12

0.22

3.03

3.08

3.06

0.24

3.08

3.05

0.69

0.94

1.08

GND

0.78

0.59

0.66

0.67

0.75

EN_CE

3.01

A10

0.16

EN_OE

VDD for analog circuits

3.00

DISC audio input

1.34

Ground for analog circuits

GND

DACU output

DACR output

DACG output

2.38 (typ)

VOX peak detector output

2.91

PLCAP for DC integrator

0.40

SQIN

0.01

Universal audio input/output

VDD for DACs

SQCAP

GCB2 general purpose output

U451 ASFIC_CMP

November 24, 2003

Pin Function

DC Voltage

Comments (Condition)

From U401-38

From U401-86

From U510

Power set (TX mode)

0 4.95

Audio PA_EN (unsquelched)

HKLN4216A

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

5-15

Table 5-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U451 ASFIC_CMP

GCB1 general purpose output

GCB0 general purpose output

3.00

Squelch channel activity output

To U401-84

Squelch detect digital output

To U401-83

PL/low speed data I/O

1.50

High speed data I/O

3.00

Chip select

3.23

Serial clock input

Serial data input

3.23

Ground for clock synthesizer

GND

Loop filter cap for clock syn

0.74

PLCAP2 for LS integrator

1.17

Not used

Vdd for clock synthesizer

3.00

Clock synthesizer output

1.70

1200 Hz ref for MDC decode

3.00

GNDDO

GND

Ground for digital circuits

GND

Vdd for analog switches

4.96

Vdd for digital circuits

3.00

16.8 MHz master clock input

1.54

GCB3 general purpose output

3.00

TX audio return from option

GCB4 general purpose output

GCB5 general purpose output

RX audio send to option

1.48

Modulation output

1.50

RX audio out to power amp

1.51

Flat TX audio return from option

0.20

RX audio return to option

1.50

Flat TX audio send to option

1.50

Vdd for audio path I/O filters

3.00

Mic audio input

1.50

Ground for audio path I/O filters

GND

Ext mic audio input (not used)

HKLN4216A

Pin Function

DC Voltage

Comments (Condition)

BW select (25 kHz mode)

From U401-2

Internal MIC enable

To U201-10

November 24, 2003

5-16

Notes:

VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 5-4. Troubleshooting Table for Board and IC Signals (Continued)

IC Designator

U480 Dual Opamp

Unit 1 output

2.48

Unit 1 (-) input

2.48

Unit 1 (+) input

2.46

Ground

GND

Unit 2 (+) input

0.28

Unit 2 (-) input

0.29

Unit 2 output

Vcc

4.96

Enable/shutdown

0.12

(Unsquelched)

Bias reference

3.26

(Unsquelched)

(+) input

3.26

(Unsquelched)

(-) input

3.27

(Unsquelched)

(-) output

3.25

(Unsquelched)

Vcc

7.48

(Unsquelched)

Ground

GND

(+) output

3.29

Unit 1 output

1.75

Unit 1 (-) input

1.56

Unit 1 (+) input

1.55

Ground

GND

Unit 2 (+) input

1.55

Unit 2 (-) input

1.56

Unit 2 output

1.38

Vcc

4.96

U490 Audio Power Amp

U510 Dual Opamp

Pin Function

DC Voltage

Comments (Condition)

(Unsquelched)

1. All voltages are measured with a high-impedance digital voltmeter and expressed in volts DC relative to ground (0 V). 2. Voltages are measured with a DC input voltage of 7.50 + .02 volts DC applied to the battery connector (J301). 3. All voltages are measured in the squelched receive mode, unless otherwise indicated. 4. Voltages are identical for VHF and UHF models unless otherwise indicated.

November 24, 2003

HKLN4216A

Chapter 6 VHF Schematic Diagrams, Overlays, and Parts Lists

6.1

Introduction This section provides schematic diagrams, overlays, and parts lists for the radio circuit boards and interface connections.

6.1.1

Notes For All Schematics and Circuit Boards * Component is frequency sensitive. Refer to the Electrical Parts List for value and usage. 1. Unless otherwise stated, resistance values are in ohms (K = 1000), capacitance values are in picofarads (pF) or microfarads (ÂľF), and inductance values are in nanohenries (nH) or microhenries (ÂľH). 2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. If the board has been removed from the chassis, the transmitter module mounting screws may be used for ground connection. (Note: The antenna nut bracket is not connected to ground.) Operating mode dependent voltages are followed by (RX) for receive mode, (TX) for transmit mode, (UNSQ) for unsquelched mode, etc. 3. RF voltages on VHF models are measured with a Fluke model 85 RF probe. The indicated voltages expressed in mV (RF) are DC level readings which correspond approximately 1:1 to the RF voltage level in mV rms. RF voltages in the Receiver Front End and Receiver Back End circuits are measured with an on-channel 100 mV (-7 dBm) RF signal applied to the antenna jack J140. 4. RF voltages on UHF models are measured both with a high-impedance RF voltmeter having a bandwidth in excess of 500 MHz (levels are expressed in dBm) and with a Fluke model 85 RF probe [levels are expressed in mV (RF)]. These indicated voltages are DC level readings which correspond approximately 1:1 to the RF voltage level in mV rms, and are only approximate for UHF frequency measurements. RF voltages in the Receiver Front End and Receiver Back End circuits are measured with an on-channel 100 mV (-7 dBm) RF signal applied to the antenna jack J140. 5. Audio voltages are measured with a high-impedance AC rms voltmeter. The indicated voltages are expressed in mV rms. Receive mode voltages are followed by (RX) and are measured with an on-channel signal with 1 kHz modulation at 60% deviation (3 kHz for 25 kHz channels, or 1.5 kHz for 12.5 kHz channels). Transmit mode voltages are followed by (TX) and are measured with a 1 kHz, 10 mV rms signal present at the external microphone input (accessory connector J471 pin 4 hot and pin 7 ground). 6. Reference Designators are assigned in the following manner: Ref. No. Series

Circuit Block

1-99

RF Front End

100-149

Transmitter RF Stages

150-200

Transmitter Power Control

201-250

Frequency Synthesizer

251-300

VCO

6-2

VHF Schematic Diagrams, Overlays, and Parts Lists: Introduction

Ref. No. Series

Circuit Block

301-400

DC Regulation

401-450

Microprocessor

451-550

Audio

7. Circuit Block Interconnection Legend: Name

November 24, 2003

Description

USWB+

Unswitched Battery Voltage (always on)

5 volts (regulated)

5 volts in RX mode only

5 volts in TX mode only

RESET

Low-line reset signal from U320 to uP

D3_3V

Digital 3.3 volts (regulated)

Analog 3 volts (regulated)

TX_ENA

Transmit enable signal from uP to transmitter

PWR_SET

DC voltage from ASFIC to TX power control

DEMOD

RX audio from backend to ASFIC

BW_SEL

Backend filter BW select from ASFIC

RSSI

RX signal strength indication from IFIC to uP

IF_IN/OUT

44.85 MHz from 1st mixer to high IF filter

RF_IN/OUT

RX signal from antenna switch to front end

MOD OUT/IN

TX modulation from ASFIC to synthesizer

16_8_MHZ

Ref osc signal from synthesizer to ASFIC

SYNTH_CS

Synthesizer chip select from uP

SPI_CLK

Serial clock from uP

SPI_DATA_OUT

Serial data from uP

LOCK

Lock detect indication from synth to uP

PRESC

VCO freq feedback from VCOBIC to synth

V_STEER

Steering line voltage from synth to VCO's

V_SF

Super-filtered 4.5 volts from synth to VCOBIC

VCO_MOD

TX modulation from ASFIC to synthesizer

TRB

TX/RX control from synth to VCOBIC

RX_INJ

Buffered RX VCO output to RX 1st mixer

TX_INJ

TX VCO output to transmitter input

HKLN4216A

VHF Schematic Diagrams, Overlays, and Parts Lists: Speaker and Microphone Schematic

6.1.2

6-3

Six Layer Circuit Board SIDE 1

LAYER 1 (L1) LAYER 2 (L2) LAYER 3 (L3) LAYER 4 (L4) LAYER 5 (L5) LAYER 6 (L6)

INNER LAYERS

SIDE 2

Figure 6-1. Six-Layer Circuit Board: Copper Steps in Layer Sequence

6.2

Speaker and Microphone Schematic MK1 1 MATES WITH J470 ON RADIO BOARD 2

SP1 1

MATES WITH J491 ON RADIO BOARD

Figure 6-2. Speaker and Microphone Schematic

6.2.1

Speaker and Microphone Parts List Reference Designator

HKLN4216A

Motorola Part No.

Description

MK1

5085880L01

Microphone, electret

SP1

5085738Z08

Speaker assembly with connector

November 24, 2003

6-4

VHF Schematic Diagrams, Overlays, and Parts Lists: Speaker and Microphone Schematic

Notes:

November 24, 2003

HKLN4216A

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

6-5

Chapter 6 VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

VHF R2 USWB+

USWB+

3V USWB+

USWB+

3V 5V

TX_ENA TX_ENA

PWR_SET

TX_VHF_R2 PWR_SET

CONTROLLER

DEMOD

BW_SEL

RX_FE_VHF_R2

RX_BE IF_OUT

IF_IN

RX_IN

RSSI

RX_OUT TX_INJ

RX_INJ

MOD_OUT

MOD_IN

16_8_MHZ

PRESC

SYNTH_VHF_R2 SYNTH_CS SPI_CLK SPI_DATA_OUT LOCK

V_STEER

PRESC

SYNTH_CS SPI_CLK SPI_DATA_OUT LOCK

V_SF VCO_MOD TRB

RX_INJ

V_STEER V_SF VCO_MOD

VCO_VHF_R2 TX_INJ

TRB

Figure 6-3. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram HKLN4216A

November 24, 2003

6-6

146-174 MHz Schematic Diagrams, Overlays, and Parts Lists

Chapter 6 146-174 MHz Schematic Diagrams, Overlays, and Parts Lists

VHF R2 Front End FE_5R 5R R20 6.8K 1% 1

UMT1 6

C20

R23 22K 1%

1000pF

C2 36pF

FE_RF_IN RX_IN C1 22pF 1%

C4 15pF

L1 68nH 2% C3

47pF 1%

Q22

SH40 SHIELD

1000pF

C5 3.0pF 3.3% L2 68nH 2%

C6 15pF 1% L3 68nH 2%

C8 30pF

L4 68nH 2%

C7 33pF 1%

C9 NU

1000pF L21 NU

R24

1000pF

750

0.74V

L51 150nH

C25

L52

680nH

FE_IF_OUT IF_OUT

82pF

1000pF

0.1uF

C23

C24

C51

R51

C99

R22 6.8K

C22

R26 0

L22 100nH

R25 5.6K

3.9V

SH1 SHIELD

C26

R21 100

3 1 2

C31 30pF

C29 20pF 1%

1% C30

Q21

24pF 1%

BFS540

L31 68nH 2% C32

C33 24pF 1%

L32 68nH 2% C34

56pF 1%

C35 27pF 1%

L33 68nH

T41

C36 24pF 1%

56pF 1%

RF BALUN 5 NC

CR41 HSMS2829

CR1 MMBD352

IO1 3 4 FE_RF_INJ

C41

RX_INJ C40 20pF 1%

15pF 1%

L40 68nH

L41 68nH

2% C42 36pF 1%

T42

15pF 1%

6 R40 20pF 1K 1%

1 IF BALUN 5 NC

C44

IO4 IO2

2 C43

IO3

1 TP1

TP2 1

Figure 6-4. VHF (146-174 MHz) PCB 8486342Z13-C Receiver Front End Schematic Diagram November 24, 2003

HKLN4216A

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

6-7

RX Back End (Overtone)

C68

U52-1 TC7W04F

FL53 CFWC455E

R65 39K

0.1uF

R66 20K

OUT 2

0V for 12.5kHz

C69 R63 39K

D51

0.1uF

1 IN

SH50 SHIELD

8 U52-4 PWR_GND

SH52 SHIELD

GND

3 2

C74

R62 3.3K

VCC

OUT 2

R67 20K GND1

U52-3 TC7W04F

D52

R64 20K

FL54 CFWC455G

R60 2.4K

1 IN

4 C63

C62

FL52 FLTR 9180468V04

0.1uF

OU T 2 C64 GND

C66

C65

0.1uF

47pF

C67

C61

0.1uF

R72 390

0.1uF

Q70

C91

C90 0.1uF

10uF

C92 0.1uF

R53

C55

FL51 MXF45 44.85MHz

0.1uF

R54 5.1K

OUT 6

3 IN C52 18pF C53 9.1pF 1.1%

0.74V 120pF C93

GND2

2 CC1 5 CC2

GND1

IF_IN

3.6pF NU

C57

3.9pF C59

0.1uF

2.7pF

L53

IF_IN

C58

3.05V

33K

R52 12K

Q51

CR51

L54 1.2uH 2%

LIMOUT 11 GND

C70

R73 1.8K

130pF

R74 1.2K Y70 45B02 455KHz 1

R57 4.7K

2 3

C81

C80

R80 5.1K

33pF 1%

PBR941 1

U51

SA616

C71 0.1uF

C60 0.1uF

VCC 1 RFIN 2 RFIN_DEC

9 RSSI_FEED

10 QUADIN

R90

LIMIN 14 LIM_DEC1 13 LIM_DEC2 12

5 RSSIOUT

R55 330

0.1uF

7 AUDIO_FEED 8 AUDIOOU T

C56

IFAMP_DEC1 IFAMPI N IFAMP_DEC2 IFAMPOUT

1.6K

3 OSCOUT 4 OSCIN

3.39V

19 18 17 16

MMBT3904

R91

MIXOUT 20

IF_5V

47pF

GND2

BW_SE L

TC7W04F

5V for 25kHz

GND2

U52-2

R61 100K IF_BAND_SEL

GND1

R75

IF_RSSI

2.1V When -47 dBm @ antenna

RSSI

22pF 1%

C72

12K

0.1uF

4 R81 1K C82

Y51 TSS2_44_395MHZ 44.395MHz 3 OU T

L81 1uH

33pF 1%

R82 NU

GND1 GND 4

1 R76 12K 1%

R77

R78

8.2K 1%

680

IF_DEMOD 1.5V

DEMOD

C73 4700pF

Figure 6-5. VHF (146-174 MHz) Receiver Back End Schematic Diagram HKLN4216A

November 24, 2003

6-8

146-174 MHz Schematic Diagrams, Overlays, and Parts Lists

VHF R2 Synthesizer FN_V_SF

4.5V

SH200 SHIELD

SH201 SHIELD

R247 270K

C232

C233

1000pF

0.1uF

4.7uF

V_SF

6 22 33 44

R230 200K

C231

FN_PRESC

C241 1200pF

NC NC NC

31 NC3 29 NC2 17 NC1

NC NC

42 CCOMP 18 REFSEL

32 PREIN 27 SFBASE 26 SFCAP

PRESC R248 51

C230

39 BIAS2 40 BIAS1

2.2uF

21 VBPASS 35 PVREF

NC NC

U201

AUX4 AUX3 AUX2 AUX1 VMULT4 VMULT3 VMULT1 VMULT2

63A 27

PD_VDD PRE_VDD AVDD DVDD VRO VCP

FN_SYNTH_CS SYNTH_CS FN_CLK

470pF

1.5K

45 38 NC 37 NC 3 2 1 48 11 12 14 15

C243 FN_TRB

R246 TRB

NC NC NC NC

FN_3V 3V

Reference Oscillator Crystal

TCXO

C201

220pF

C202 C203 C206

62pF 2.7pF NU

NU NU 0.01uF

R202 R206

150k NU

47k 100

D201

1SV232

Y201 Y202

14R06 NU

NU 45J68

C208

C209

470pF

470pF 470pF

R244 51

VCO_MOD

R205 100

C202 C201 62pF 220pF 1%

560nH C212

C213

C214

2.2uF

.01uF

1000pF

R206

OU T

GND1 GND 4

R220 150 C220

FN_16_8

R202 150K

R221 150

22pF

C205

C221

NU Y202 45J68 NU 4

.01uF

3V 0V

VCC 3

Y201 14R06 16.8MHz

1uF

16_8_MHZ

0.1uF

C206

TP240

C245

FN_VCO_MOD

L211

1200pF

XTAL2 24 XTAL1 23

V_STEER 3.0V to 8.0V

TP200

100K

TX: 3V RX: 0V

C210

C207

C244

R243 2K

0.1uF

C211 470pF

FN_V_STEER

R245

5 34 20 36 13 47

SPI_CLK

25 16 NC 28 46 NC 4 43

MODOUT 41 FREFOUT 19

9 CEX 8 CLK

FN_MOD MOD_IN

LOCK LOCK: 3V UNLOCK: 0V

C204

WARP INDMULT SFOUT ADAPTSW LOCK IOUT IADAPT TEST2 TEST1

30 SFIN 7 DATA 10 MODIN

FN_DAT A SPI_DATA_OUT

FN_LOCK

DGND AGND PRE_GND PD_GND

OUT VCON 16.8MHz GND 2

1 3V 0V

A3 4 5 A2 6 A1

3 K3 2 K2 1 K1

C222 .01uF

R223 100

D220

C223

C218

C219

2.2uF

0.1uF

.01uF

C224 D201

C203

1SV232

2.7pF 3.7%

NC 3 K3 2 K2 1 K1

.01uF

A3 4 NC A2 5 A1 6 D221

R227 150K

C228

C227

C226

C225

0.1uF

1000pF

10uF

5V FN_5V

R212

5V 0 C215

C216

C217

2.2uF

0.1uF

1000pF

Figure 6-6. VHF (146-174 MHz) PCB 8486342Z13-C Synthesizer Schematic Diagram November 24, 2003

HKLN4216A

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

6-9

VHF R2 VCO

V_SF VCO_VSF

4.5V

V_S F

R273

L270 560nH C270

SH251 SHIELD

SH250 SHIELD

1200pF

SH253 SHIELD

0.1uF

R270 18

300

C274

VCO_3V

C285

C292

0.1uF

1200pF

C272

1 C273 C271

R274 33

.01uF

L271 NU

.01uF

R271 8.2K

1 2 3 4 5 6 16 15 20 19

D251 1 3

C253 16pF

C255 18pF

2 L253 100nH

L252 560nH

C254 3.3pF 3.0%

L254 33nH 2%

1% C256 R254 220

10pF 1.0% R253

VCO_V_STEER V_STEER 3.0V to 8.0V

L251 C251

C258

TX_IADJ RX_IADJ SUPER_FLTR COLL_RFIN RX_BASE RX_EMITTER TX_BASE TX_EMITTER FLIP_IN TRB_IN

1200pF

47 L255 330nH

C257

560nH

R272 9.1K

36pF 1%

9 GND_FLAG 11 17 GND_BUFFERS GND_LOGIC

14 VCC_BUFFERS 18 VCC_LOGI C

0.1uF 1

R284 330

L282 47nH

L292 68nH

C290

TX_OU T 10 RX_OUT 8

7 RX_SWITCH 13 TX_SWITCH 12 PRESC_OUT

VCO_TX_INJ TX_INJ

51pF NC NC

U251

VCO_5R

4 50 U5

C291

L291 27nH

36pF

L281

68nH C284

R281 9.1K

1200pF

C281

R282

1200pF

750 1

C282

VCO_RX_INJ RX_INJ

.01uF L262 560nH

C286 D261 1 3

2 L263 100nH

11pF

C263 27pF 1%

C265 15pF

C264 4.7pF 2.1%

L264 47nH 2%

C268

V_SF

R261 51K

R280 6.8K

9.1pF

Q280 BFS540

R283 180

C283 1200pF

C266

R262 6.8K VCO_MOD

0 L283 NU

2.7pF 3.7%

VCO_MOD

R286

10pF 1.0%

C267 36pF 1%

R264 220 R263

C269 1500pF V_SF

30 L265 330nH

R276

L276

100nH

C277

VCO_PRESC PRESC

1200pF

C276 5.1pF

D262 1SV229

VCO_TRB

R275

TX: 3V RX: 0V

TRB 0

C275 1200pF

Figure 6-7. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic Diagram HKLN4216A

November 24, 2003

6-10

146-174 MHz Schematic Diagrams, Overlays, and Parts Lists

VHF R2 Tx

PA_USWB+ USWB+

PA_TX_EN A

C170

R171

TX_ENA

Q171

6.8K

0.1uF

MMBT3904

Q170 EMB10

R524 10K

SH100 SHIELD

3 1

C172 1500pF

C120

R158

C155

1.5K

0.1uF

C157

C154

0.1uF

1500pF

R120 150 C151 1500pF C150 1500pF

C156

Q150 .01uF TP150

R157 5.6K

U150-1

C159

LM2904

1500pF

PA_PWR_SET

3 1

100K 1% R153 100K 1%

57R01

R154

5 2

R156 330

LM2904

C153

1500pF

C121

R151

100K 1%

4 C152

R121 150

U151

U150-2

1500pF

R152

R155 100K 1%

L120 560nH

1500pF

R150 0.1

0.47uF

R162

PWR_SET 10K

C158 1500pF

PA_5T

R110 C114

0.1uF

1500pF

C111 R107 150

R106 4.7K

L100 560nH

360 R111 NU

C115

C116

1uF

0.1uF

J140 C137

S1 S2

200pF

L110

5T C109

C113 1500pF

560nH C110

C112

VR110

0.1uF

1500pF

4.3V

G1 G2 C140

T1 T2

13pF

C102 0.1uF

C103 1500pF

L103 30nH

L101 560nH R105 1.2K

PA_TX_IN J

R101

C100

1500pF

TX_INJ R100 300

R102 300

L102

C105

C107

10pF

Q100

C106 1500pF

BFS540

100nH C104

C171

2.7pF

2 VGG 1

RFIN

C133 3.3pF

C135 3.9pF

L130

L131

L132

3 VDD RFOUT

GND 5

C117

D120 MA4PH261

1000pF

M140 ANTENNA_NUT

C130

43.67nH C132

43.67nH C134

43.67nH C136

C141

12pF

27pF

13pF

18pF

1 TAB1 2 TAB2

3 TAB3 TAB4 4

NC NC

L140 30.54nH

U110

RA07M1317M_VHF

R103 3.3K

C124

L121 47nH

R104 51

C131 3.3pF

PA_RX_OU T RX_OUT

C101

C108

C122

D121

C123

1500pF

0.1uF

15pF

MA4PH261

15pF

1500pF

Figure 6-8. VHF (146-174 MHz) PCB 8486342Z13-C Transmitter and Power Control Schematic Diagram November 24, 2003

HKLN4216A

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

6-11

5V +3 V

SW_B +

SW_B

Controller

VS_AUDIO_SEL CNTL_PWR_SET OPT_MI C

PWR_SET

OPT_TX_AUD_FLAT_RETURN OPT_TX_AUD_RETURN

DEMO D

OPT_RX_AUD_SEND_DETECTO R

OPT_RX_AUD_SEND_UNMUTED

OPT_RX_AUD_RETURN

VS_GAIN_SEL

SW_B +

C500

1000pF

C503 1000pF

MOD_OUT

BATT_CHARGE

RESET

SC I

ASFIC_CS

F1200

uP_CL K

BOOT_ENA

EXT_MIC_PTT

16_8_MHZ

C501

CNTL_SPI_CLK

1uF

SPI_CLK CNTL_SPI_DATA_OUT

SPI_DATA_OUT

R502 100

R504

100

CNTL_SYNTH_CS SYNTH_CS

R501 100

CNTL_LOCK LOCK

J460-1 CONNECTOR ACCESSORY/KEYPA D

CNTL_RSSI

R505 TP40 3

100

C406

RSSI CNTL_TX_ENA TX_ENA

TP40 4

150pF

SW_B

USWB BATT_DETECT

SCI

RESET

ASFIC_CS

F120 0

uP_CLK

BOOT_ENA

EXT_MIC_PTT

HSIO

VOX

LSIO

CH_ACT

SQ_DET

SPI_DATA_OUT

DISPL_COM_DATA_SEL VS_RAC OPT_DATA_READY

SPI_CLK

SW_B +

D3_3V

SPI_DATA_IN

D3_3 V

SW_B +

1000pF

R503 10 0

C50 4

C403 150pF

BK1005HM47

HSIO

LSI O

E500 1

BW_SEL

CNTL_MOD_OU T MOD_OUT

VOX

AUDI O

16_8_MHZ

SQ_DET

BW_SEL

CNTL_16_8_MHZ

CH_ACT

SPI_DATA_OUT

17 SPI_CLK

C405 150pF

D3_3 V

DEMOD CNTL_BW_SEL

OPT_TX_AUD_SEND 28

PWR_SET CNTL_DEMOD

3V D3_3V CNTL_USWB+ USWB+ CNTL_5V 5V

TP301 CNTL_5R

5R CNTL_5T

BACKLIGHT

KEYPAD_ROW

CNTL_3V

SYNTH_C S

KEYPAD_COL

1000pF

1000pF C404

1000pF C407

C409

1000pF

C408

1000pF

1000pF C507

1000pF C40 2

C505

1000pF C506

S441 SWITCH 1 A1 3 A2

B1 2

OPT_BUTTON_ 2 FREQ_SEL_ 3

B1 2 B2 4

S440 SWITCH 8

PC0 PC1 PC2 C0 C1 9 7

PC3

GND1 GND

1 A1 3 A2

TX_EN A

BATT_CHARGE

RX_ENA

RX_EN A

VOLUME

D3_3V

RESET

OPT_BUTTON_ 1

B1 2 B2 4

S443 SWITCH

RSSI

PTT

B2 4

S442 SWITCH 1 A1 3 A2

MICROPROCESSOR

SWB+

OPT_EN A VS_CS VS_IN T

LOCK USWB +

DISP_EN A

1 2 4 C0 C1

FREQ_SEL_ 0

ON_OFF

DC_REGULATION

ON_OF F TX_EN A

FREQ_SEL_ 1 FREQ_SEL_ 2

Figure 6-9. VHF (146-174 MHz) Controller Interconnect Schematic Diagram HKLN4216A

November 24, 2003

6-12

146-174 MHz Schematic Diagrams, Overlays, and Parts Lists

Microprocessor D3_3 V

D3_3V R416 20K

R410 10K

D3_3V C411

C410

0.1uF

10uF

C413

C412 1000pF

R412 100K

0.1uF

8 6 1 3 7 5

TP405

VCC SCK CS 2 WP SO HOLD SI VSS

0.1uF

Q410

TP402

C418

R417 10K

R411

SC I 820

SH401 SHIELD

SH400 SHIELD

C419

1000pF

R419 4.7K

U402

X25128-2.7 EEPROM 1

TP401 LSI O CH_ACT

SPI_DATA_IN

SQ_DET

SPI_DATA_OUT

HSI O OPT_DATA_READY

SPI_CLK

uP_CLK C400

R400 NU

D3_3 V

R418

NU 100K

C414

C417 C415

DISPL_COM_DATA_SEL

C416

0.1uF 1000p F 1000pF

2 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)

ON_OFF

PC0_DATA0 PC1_DATA1 PC2_DATA2 PC3_DATA3 PC4_DATA4 PC5_DATA5 PC6_DATA6 PC7_DATA7

A(18:0) C430

C431

0.1uF

1000pF

D3_3V

R433 100K

21 22 23 25 26 27 28 29

D0 D1 U404 A0 D2 FLASH A1 D3 A2 A3 D4 A4 D5 A5 D6 A6 D7 A7 6 A8 NC A9 A10 A11 A12 A13 A14 A15 A16 GND

R431 NU

20 19 18 17 16 15 14 13 3 2 31 1 12 4 5 11 10

C432

C433

0.1uF

1000pF

12 88 39 59

LVOUT 95

VRL 68 VRH 69

EXTAL 90 XTAL 91

VDD VDDR VDDL AVDD

67 66 65 64 63 62 61 60

PTT EXT_MIC_PTT FREQ_SEL_0 FREQ_SEL_1 VS_RAC

FREQ_SEL_2 FREQ_SEL_3 OPT_BUTTON_1 OPT_BUTTON_2

5V 1

A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7) A(8) A(9) A(10) A(11) A(12) A(13) A(14) A(15) A(16)

R430 100K D(0) 11 D(1) 12 D(2) 13 D(3) 15 D(4) 16 D(5) 17 D(6) 18 D(7) 19

VDD A0 A1 U403 A2 A3 NU A4 SRAM A5 A6 D1 A7 D2 A8 D3 A9 D4 A10 D5 D6 A11 D7 A12 A13 D8 A14

A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7) A(8) A(9) A(10) A(11) A(12) A(13) A(14)

C445

C440

C441

C442

C443

C444

C401

.01uF

0.1uF

R440 4.7K

.01uF

200K 1% R421 100K 1%

C422

D424 3V

.01uF

RED LED

D440 BRPY1204W

20 CS 22 OE 27 WE VSS 14

A(18)

0.1uF

VOLUME

R442 220

SW_B+ C447

R441 4.7K

Q440-2

C420

Q440-1 5

10 9 8 7 6 5 4 3 25 24 21 23 2 26 1

C446

SW_B +

A(17) R434

PE0_AN0 PE1_AN1 PE2_AN2 PE3_AN3 PE4_AN4 PE5_AN5 PE6_AN6 PE7_AN7

BOOT_ENA

R420

24 R432

NC NC

71 72 73 74 75 76 77 78

D414

D3_3V

8 VCC 30 EN_CE 32 EN_OE 7 EN_WE RESET 9

AT49LV001N_70VI

D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)

86 85 84 83 82 81 80 79

A(7) A(6) A(5) A(4) A(3) A(2) A(1) A(0)

D(7:0) D3_3 V

VDDSYN 92 XFC 93

30 31 32 33 34 35 36 37

U401 MC68HC11FL0

22 23 24 25 26 27 28 29

DISP_ENA

PH0_PW 1 PH1_PW 2 PH2_PW 3 PH3_PW 4 PH4_CSI O PH5_CSGP1 PH6_CSGP2 PH7_CSPROG

PJ0_CSGP3 PJ1_CSGP4 PJ2 PJ3 PJ4 PJ5 PJ6 PJ7

VSS VSSR VSSL AVSS

R445 4.7K

47 46 45 44 43 42 41 38

RESET

89 96 NC 48 94 4 58 57

13 87 40 70

ECLK IRQ XIRQ RESET PG7_R_W MODA_LIR MODB_VSTBY

PI 7 PI6 PI5 PI4 PI 3 PI 2 PI1 PI0

Q402 3

49 50 51 52 53 54 55 56

R446 10K

PB5_ADDR13 PB4_ADDR12 PB3_ADDR11 PB2_ADDR10 PB1_ADDR9 PBO_ADDR8

1000pF

NC NC

A(13)15 A(12) 21 A(11) 9 A(10) 11 A(9) 10 A(8) 14

Q403

PG0_XA13 PG1_XA14 PG2_XA15 PG3_XA16 PG4_XA17 PG5_XA18 PG6_AS

PA7_PA1_OC1 PA6_OC2_OC1 PA5_OC3_OC1 PA4_OC4_OC1 PA3_IC4_OC5_OC1 PA2_IC1 PA1_IC2 PA0_IC3

BACKLIGH T

6 16 20 19 17 18 5

PF7_ADDR7 PF6_ADDR6 PF5_ADDR5 PF4_ADDR4 PF3_ADDR3 PF2_ADDR2 PF1_ADDR1 PFO_ADDR0

NC A(14) A(15) A(16) A(17) A(18)

SW_B +

R414 33K

R415 33K

F1200

7 PB7_ADDR15 8 PB6_ADDR14

SYNTH_CS

PD6_LVIN 3 PD5_SS 2 PD4_SCK 1 PD3_MOSI 100 PD2_MISO 99 PD1_TXD 98 PD0_RXD 97

NC ASFIC_CS

R413 100K

R443 120

RB520S-30 R424

D3_3V

200K 1%

GREEN LED

C421 R422 100K

R423 100K

.01uF

BATT_DETECT

R425 100K 1%

RSSI VO X KEYPAD_CO L KEYPAD_RO W LOCK VS_INT VS_CS OPT_ENA TX_ENA RX_ENA

Figure 6-10. VHF (146-174 MHz) PCB 8486342Z13-C Microprocessor Circuitry Schematic Diagram November 24, 2003

HKLN4216A

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

6-13

R516

R523

C512

10K

C514

6.8pF

R522

16pF

100K

R514

R512 150K

LM2904 R511

100K

DEMOD

Q520 8 1

R513

R515

C460

0.1uF

VR471

C511

C513

R518 220K

220pF

R519 100K

C519

R470

OPT_RX_AUD_SEND_DETECTO R

5V_A

IMX1

C518 6

Audio

Q520

5V_A

100K

U510-1

U510-2

0.1uF

2.2K

OPT_RX_AUD_RETURN

LM2904 R521 NU

R520 100K

3V_A

NC OPT_RX_AUD_SEND_UNMUTED

R480 0

OPT_TX_AUD_FLAT_RETURN R517 OPT_TX_AUD_SEND

1uF

OPT_TX_AUD_RETURN VS_AUDIO_SEL VS_GAIN_SEL

3V_A

PWR_SET VOX

3V_A C451 0.1uF

C452 0.1uF

R462 24K

0.1uF 4.7uF 10 V

SQCAP VDDDAC UIO SQIN PLCAP VOX DACG DACR DACU GND A DISC VDDA

12 11 10 9 8 7 6 5 4 3 2 1

C455 .022uF

CH_ACT

13 14 15 16 17 18 19 20 21 22 23 24

SQ_DET LSIO HSIO ASFIC_CS

GCB2 GCB1 GCB0 CHACT SQDET LSIO HSIO CSX CLK DATA GND SYN LCAP

U451 30C53

C456

SPI_DATA_OUT

0.1uF

R517

Not Placed

R463

30K

24K

3V_A

R451 47K

R473 680

4 5

Q472

2.2K

Q471 3

C464

C465

C471

0.1uF

1000pF

2.2uF

R476 100K

2 3

Q470

D470

2.2K

C472 6

0.1uF

A_MOD_OUT

L471 390nH C474

C473

150pF

4 S2 5 S4

.022uF

C458

C493

0.1uF

1000pF

1 M1

2.2K SW_B+

3 M3

J470-1

R478 C478

C476

J491-1 INTERNAL SPEAKER

.022uF 150pF

R494 C494 330K 2.2uF

7 S1 2 M2

VR474 MMBZ5250B 20V

C475

VR475 15V MMBZ5245B

6 S3

SCI

VR473 20V MMBZ5250B NC

R479 100K

C466

BOOT_ENA J471 ACCESSORY CONNECTOR

OPT_MIC

EXT_MIC_PTT

MOD_OUT

BATT_CHARGE

R475 180K R477

RESET

0.1u F R255 3.9K 1%

C477 5V R474 330

0.1uF

R471

MICROPHONE CONNECTOR

E451

2 16_8_MHZ

BK1005HM471

C459 F1200 0.1uF uP_CLK

5V_B

C481 .01uF

E452 BK1005HM471 5V

E453

5V_A 2

5V BK1005HM471

C497

5V_B

C482 .01uF

Not:Placed:NU 3

Q481 Not_Placed:NU 1

0.1uF R486 100K Not_Placed:NU

R483 150K Not_Placed:NU

R487 0

5V_B 8

2 3

C499 82pF

C483 0.1uF

R484 2.2K

Not_Placed:NU

C484

U480-1

R485 100K 1

Q490

R492

24K

R490 2.2K Not_Placed:NU

Not_Placed:NU .033uF

LM2904 Not_Placed:NU

R491

DC Level 0.3 - 0.4 V low Supply = 7.42 1/2 Supply = 3.22 1 3 2 4

C488

C480

R469

0.1uF

3 J491-3

470pF

TDA854 MODE 5 INPOS OUTNEG SVR OUTPOS 8 INNEG

C479 150pF

6 VCC

U490

GN D

4 J491-4

C489 1

470pF

7 C492

R496 10K Not_Placed:NU

R497 1MEG

10uF

Q482

Not_Placed:NU

R493 330K

Not Placed

1200pF

R482 330K

Not Placed

0.1uF

Not_Placed:NU

Not Placed

R516

0.1uF

Not_Placed:NU

R515

C467

R481 100K

UHF 100k

3V_A

C463

R464

Not_Placed:NU

VHF

48 NC 47 46 45 44 43 42 41 40 39 38 37 NC

C462

C457

Not Placed

0.1uF

25 26 27 28 29 30 31 32 33 34 35 36

SPI_CLK

R513

MICEXT GNDRC MICINT VDDRC TXSND RXRTN AUXTN AUDIO MOD RXSND GCB5 GCB4

PLCAP2 NC VDDSYN SYN F1200 GNDDO GNDD VDDCP VDDD CLK168 GCB3 TXRTN

BW_SEL

1000pF

VR472

D471

C454

5V_A

C453

C470

R460 24K

R472 680

C461

5V_B

Not_Placed:NU

UMG5 1 5V_B

C490 470pF

R498

U511

2 3

R488 330K

C495

UMG5 4

1uF

D491

47 K

8 7

6 5

C496 1uF

U480-2

NC Not_Placed:NU

R499 270K Not_Placed:NU

LM2904 Not_Placed:NU

R489 91K Not_Placed:NU

2 3

R495 5.6K C498 1uF

Figure 6-11. VHF (146-174 MHz) Audio Circuitry Schematic Diagram HKLN4216A

November 24, 2003

6-14

146-174 MHz Schematic Diagrams, Overlays, and Parts Lists

DC Regulation USWB+

POS NEG DATA

U310 TK71750S

VR301 MMBZ5250B

F301

J301

C301

D301

390pF

20V

C303

C304

33uF

.01uF

1 VIN 5 VOUT 3 CTRL 4 BYPASS GND 2 C310 .01uF

5V C311

C312

C313

.018uF

10uF

.01uF

Q311 5R

D3_3V BATT_CHARGE

C314

VR302 MMBZ5250B

C302

C305

C306

390pF

100pF

.01uF

1200pF

NC R313 10K

20V

R312 20K

R310 100K

Q313

C315

RX_ENA

1200pF

Q312

TP302 TX_ENA

5T R311 100K

D3_3V

R506 100

1200pF 2

VOLUME

SWB+

R508 100K

R509 100K

RESET

TAB2

TAB1

LOW

R507 100

C316

Q493

S444 SWITCH 3 HIGH 4

C323 R322 100K

Q494 R510

LP2986

330K

ON_OFF

D3_3V

U320

150pF

NC NC

4 INPUT OUTPUT 5 8 SHUTDOWN 3 SENSE ERROR 7 6 TAP FEEDBACK 2 GND

D3_3V C320 .018uF

R320 330K 1%

C321

C322

10uF

.01uF

R321 200K 1%

U330 TK71730S

C331

1 VIN VOUT 5 3 CTRL 4 BYPASS GND 2

3V C334

C333

10uF

.01uF

Figure 6-12. VHF (146-174 MHz) PCB 8486342Z13-C DC Regulation Schematic Diagram November 24, 2003

HKLN4216A

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

J2 MAIN BOARD CONNECTOR J2-9 J2-16 J2-17 J2-10 J2-1 J2-2 J2-3 J2-4 J2-6 J2-13 J2-14 J2-15 J2-18 J2-19 J2-12 J2-21 J2-22 J2-23 J2-24 J2-25 J2-26 J2-27 J2-5 J2-7 J2-8 J2-2 J2-11 J2-20

9 16 17 10 1 2 3 4 6 13 14 15 18 19 12 21 22 23 24 25 26 27 5 7 8 8 11 20

6-15

J1 DISPLAY MODULE CONNECTOR

KEYPAD

LEDBL

DATA CLK LCD_SEL NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC

C1 150pF

C3 150pF

C6 150pF

C8 150pF

DNF

R1 100K

Vddd R6 100K

Vddd

150pF

0.1uF

R10

13K

22 K

43 K

130K

J2-29 G1 J2-30 G2

9 8 7 6 5 4 3 2 1

J1-9 J1-8 J1-7 J1-6 J1-5 J1-4 J1-3 J1-2 J1-1

LEDBL GND GND GND DATA CLK LCD_SEL GND VDDD

G1 J1-10 GND G2 J1-11 GND

R2 13 K S18 SWITCH 1 1 2 3

S17 SWITCH 2 1 2 3

S2 2 SWITCH 6 1

2 3

S2 3 SWITCH 5 1 2 3

S2 5 SWITCH 8 1 2 3

S26 SWITCH 9 1 2 3

S2 7 SWITCH 0 1 2 3

COL ROW

NC NC

REF

Vddd

150pF DNF

STD

LIMITED KEYPAD

NOT PLACED

R10

NOT PLACED

S19 SWITCH 3 1

2 3

1 2 3

S20 SWITCH UP

R3 22 K

S24 SWITCH 4 1

R4 43K

R5 130K

S21 SWITCH 7 1 2 3

2 3

S28 SWITCH 1 2 3

LEDBL D3

NOT PLACED

R13

NOT PLACED

R14

NOT PLACED

R15

NOT PLACED

S2 9 SWITCH # 1 2 3

S3 0 SWITCH DOW N 1 2 3

S31 SWITCH F1 1 2 3

QSMG-H799 D2

D10

R11 470

D11

D3 QSMG-H799

QSMG-H799

S32 SWITCH F2 1 2 3

D1 QSMG-H799

D4 QSMG-H799

D5 QSMG-H799 D6 QSMG-H799

D7 QSMG-H799 D8 QSMG-H799

QSMG-H799 R12 470

R1 3 330

R14 330

R15 33 0

Figure 6-13. VHF (146-174 MHz) Keypad Board Schematic Diagram

HKLN4216A

November 24, 2003

6-16

146-174 MHz Schematic Diagrams, Overlays, and Parts Lists

D301 C478

4 J470

R469

C476

C473 L471

D470

C489

U480 5

8 R482

VR473

VR475

E452

R524

1 C

VR110

S440

C306

2 J301

R481 C482

R489

C301

VR302

R483

VR301

R496

C305

C112

C284

C91

C92

R212

R248

U110 C113

J140

M140

S442

C117 C2

S443

SH1 R26 C8 CR1 C9

C201

C6 C4 C5

L21

C24 R25

L31

C22

C31

C23

Q21

R22

L22

C29 C30

C33 C32

C233

C230

R205 R221 R220

C219

L33

R24

C25 L32

C36

C231

C34

C216

C35

C241

SH201 U201

R223

C209

C205

Q171

S444

C480

R283

C217

C232

C214 C202

R63

C215 C212

R247

C208 C218

C283

C244

R245

R244

C213

C210

R417

C419

C413

R410

C418 R419 C412

C410

R431

C406

C432

C207

R400

C400

C433

R504

R230

R171

3 Y70

Q280 L281

L283

R243

U52 8

R61

C446 C204 C505

C69

C286 R286

1 U404

C409

L211

C408 C506 C503

C281 SH253

R281 R282

L251

C251

C507

C407

U403

C243

C245

SH401

C404

C504

4 5

C282

D251

C402 C403

F301

L253

J471

C302

R280

D261

2 C254

C255

R261

U402

Q403

FL53

L255

L254

C256

C268 SH250 C253 L262 L252

7 6 C488

D262 C257

R262

C263

R442

Q402 R445 R446 C500

C430 C431

C266 C265

L263 C422

R424

C267

L264

C264

C455 C421

R443

Q440

R425

C460

L265

FL54 R253

1 D424

D471

VR472

C461

R521

R471

R503

C303

U451

R254 C258

Q472 R472

R462

C470

R522

C269 R264 R263

VR471

C477

R514 R513

C513

C458

C454 R463

R414

C501

E500

R470

R473

R480

C465

S441

Figure 6-14. VHF (146-174 MHz) PCB 8486342Z13-C Board Component Side November 24, 2003

HKLN4216A

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

6-17

R23

Q22

C99

R21

C26

C141

C132

C137

C134

C136

L131

C133 SH100

TP150

C110

L110

C116

D440

C102

L103

Q100

R105 C108

C106

C107

C105 C496

D491 R498

R508 Q493

R509

C481

R484

R485

Q482

Q490

Q481

VR474

C484

R495

C495

R494

R487

C483 R491 R486

R493

4 3

U490 5

U511 R490

R499

R497

3 4

C490

C498

R488

C479

R492

C499

J491

C316

L140

R111

R106

C314

R311

R310

3 4 Q313

C135

C474

C492

R474

Q311 C315

L101

R475

R255

R110

C101

R477

Q470

R476

R104

R479

Q312 R312

R313

L121

C104

C311

C313

TP404 R322

U320

R320

R506

FL52

4 U150

C153 C154

L102

C61

C334

U310

C320

C322

C323

R321

E453

R451

C457

C310 C312

C472

C103 C171 R103

R478

C475

C82

R82

L81

C115 C156

C159

R100 R102

C131

C124 C123

C155 C111 R158 C114 R107 C109 L100

Q170

R101 C100

R81

C333 C331

U330

C304

R272

C271 C273

C140 L132

D121

8 R156

R62

D51

R60

D52 C74

C170 C120

Y51 C64

R157

C65

C66

R153

C81

SH50

C172

C471

C451

C321

C63

C292

L270 R271 C274 R270 C270

Q150

R80

R67 R64

C40

C80 R57

C62

C42

L282 R273

SH251

L40

C151

R77

C67

C68 R66

C41

R91

L54

C150 R152

C60

R65

R155

R90

R76 R78

R40

R72

C43

L292 R284

C275

R274

C44

C285

L41

C290

L271

E451

R74

R75

T42

Q70

C73

C72

SH40

C70 R73

C466 C497

C71

TP1

TP200

TP240 C291

U251 20

C272

C452

L291

L276 R275

C463

TP2

R202

C277

C453

C456

R518

C518 C514

C416

C462

R464

TP403

R515

R276

C276

R516 R511

R246

C445

R460

C411

R517

C464

C519

R519

R512

C459

TP301

C512

C415

CR41

C203

D201

U51

C420

C511

U510 D414

R421

C401 C467

Q520 R520 Q471

R420

R418 R415

R523

R422

R423

C447

R505

3 4

R441

R440

28 30 29

29 C405

R412 C440 C441 C442 C443 C444 C414

R154

C158 R162

4 C211

C226

C225

R413 R430

SH400

J460

U401

L130

R120

C157

R151 C152

C90

C130

C58 C59

C228

C122 D120

C56 R150

R227 C227

L120 R121

R55

C121

R54 Q51

U151

C57

R53

C93

L53

SH52

R51

FL51

T41

Y202

SH200

3 4

C55

CR51

R52

L51

C223 C224

L52

Y201

C52 C53

C221

D221

R501

C51

R502

C222 D220

4 3

R433

C206 R206

C220

R411

Q410

TP302

R434 R432

TP405

TP401

TP402 C417 R416

C20

R20

R510 C493

R507

4 3 Q494

C494

Figure 6-15. VHF (146-174 MHz) Board Solder Side View HKLN4216A

November 24, 2003

6-18

146-174 MHz Schematic Diagrams, Overlays, and Parts Lists

R11

G2 9

D1 D8

C7 1

28 g2

D11

R10

R6 R1 R7

R8 D7

D10

R15 R14

R13 R12

R4 R3

Component Side

Solder Side

Figure 6-16. VHF (146-174 MHz) PCB 8486342Z13-C Keypad Board November 24, 2003

HKLN4216A

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

VHF (146-174 MHz) Radio Parts List

Circuit Ref C1 C2 C3 C4 C5 C6 C7 C8 C9 C20 C22 C23 C24 C25 C26 C29 C30 C31 C32 C33 C34 C35 C36 C40 C41 C42 C43 C44 C51 C52 C53 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73

Motorola Part No. 2109445U41 2109445U46 2109445U49 2109445U37 2109445U14 2109445U37 2109445U45 2109445U44 Not_Placed 2113743L17 2113743L17 2113743L17 Not_Placed 2113743L17 2113743L17 2109445U48 2109445U42 2109445U44 2109445U51 2109445U42 2109445U51 2109445U43 2109445U42 2109445U40 2109445U37 2109445U46 2109445U37 2109445U40 2113743N48 2113743N28 2109445U26 2113743M24 2113743E20 2113743M24 2113743N16 2113743N12 2113743M24 2113743N46 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743N53 2113743E20 2113743M24 2113743L33

HKLN4216A

Description CAP, 22pF CAP, 36pF CAP, 47pF CAP, 15pF CAP, 3.0pF CAP, 15pF CAP, 33pF CAP, 30pF CAP, 4.7pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 6.2pF CAP, 1000pF CAP, 1000pF CAP, 43pF CAP, 24pF CAP, 30pF CAP, 56pF CAP, 24pF CAP, 56pF CAP, 27pF CAP, 24pF CAP, 20pF CAP, 15pF CAP, 36pF CAP, 15pF CAP, 20pF CAP, 82pF CAP, 12pF CAP, 9.1pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 3.9pF CAP, 2.7pF CAP, 0.1uF CAP, 68pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 130pF CAP, 0.1uF CAP, 0.1uF CAP, 4700pF

Circuit Ref C74 C80 C81 C82 C90 C91 C92 C93 C99 C100 C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C120 C121 C122 C123 C124 C130 C131 C132 C133 C134 C135 C136 C137 C140 C141 C150 C151 C152 C153 C154 C155 C156 C157 C158

Motorola Part No. 2113743N42 2109445U41 2109445U45 2109445U41 2113743M24 2311049A57 2113743E20 Not_Placed 2113743M24 2113743L21 2113743L21 2113743M24 2113743L21 Not_Placed Not_Placed 2113743L21 2113743N26 2113743M24 2113743M24 2113743M24 Not_Placed 2113743L21 2113743L21 2113743L21 2311049A07 2113743M24 2113741F25 2113743L21 2113743L21 2113740F31 2113740F31 2113743L21 2113740F29 2113740F15 2113740F37 2113740F15 2113740F37 2113740F17 2113740F30 2113740F58 2113740F30 2113740F33 2113743L21 2113743L21 2113743L21 2113743K18 2113743L21 2113743E20 2113743L41 2113743M24 2113743L21

6-19

Description CAP, 47pF CAP, 22pF CAP, 33pF CAP, 22pF CAP, 0.1uF CAPP, 10uF CAP, 0.1uF CAP, 3.6pF CAP, 0.1uF CAP, 1500pF CAP, 1500pF CAP, 0.1uF CAP, 1500pF CAP, 27pF CAP, 10pF CAP, 1500pF CAP, 10pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 1500pF CAP, 1500pF CAP, 1500pF CAP, 1500pF CAPP, 1uF CAP, 0.1uF CAP, 1000pF CAP, 1500pF CAP, 1500pF CAP, 15pF CAP, 15pF CAP, 1500pF CAP, 12pF CAP, 3.3pF CAP, 27pF CAP, 3.3pF CAP, 27pF CAP, 3.9pF CAP, 13pF CAP, 200pF CAP, 13pF CAP, 18pF CAP, 1500pF CAP, 1500pF CAP, 1500pF CAP, 0.47uF CAP, 1500pF CAP, 0.1uF CAP, .01uF CAP, 0.1uF CAP, 1500pF

Circuit Ref C159 C170 C171 C172 C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C221 C222 C223 C224 C225 C226 C227 C228 C230 C231 C232 C233 C241 C243 C244 C245 C251 C253 C254 C255 C256 C257 C258 C263 C264 C265 C266

Motorola Part No. 2113743L21 2113743L21 2113743N12 2113743L21 2113740F59 2109445U52 2109445U13 2113743L09 Not_Placed Not_Placed 2113743L09 2113743L09 2113743L09 2113743L09 2113743E20 2113743F18 2113743L41 2113743L17 2113743F18 2113743E20 2113743L17 2113743F18 2113743E20 2113743N34 2113743L41 2113743L41 2113743L41 2113743L41 2311049A57 2311049A57 2113743L17 2113743E20 2113743F18 2113743L17 2113743E20 2311049A56 2113743L19 2113741M69 2113741F27 2311049A08 2113741F49 2109445U38 2109445U15 2109445U39 2109445U27 2109445U46 2113743L19 2109445U43 2109445U19 2109445U37 2109445U27

Description CAP, 1500pF CAP, 1500pF CAP, 2.7pF CAP, 1500pF CAP, 220pF CAP, 62pF CAP, 2.7pF CAP, 470pF CAP, 2.7pF CAP, 1000pF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 0.1uF CAP, 2.2uF CAP, .01uF CAP, 1000pF CAP, 2.2uF CAP, 0.1uF CAP, 1000pF CAP, 2.2uF CAP, 0.1uF CAP, 22pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAPP, 10uF CAPP, 10uF CAP, 1000pF CAP, 0.1uF CAP, 2.2uF CAP, 1000pF CAP, 0.1uF CAPP, 4.7uF CAP, 1200pF CAP, 0.1uF CAP, 1200pF CAPP, 1uF CAP, .01uF CAP, 16pF CAP, 3.3pF CAP, 18pF CAP, 10pF CAP, 36pF CAP, 1200pF CAP, 27pF CAP, 4.7pF CAP, 15pF CAP, 10pF

Circuit Ref C267 C268 C269 C270 C271 C272 C273 C274 C275 C276 C277 C281 C282 C283 C284 C285 C286 C290 C291 C292 C301 C302 C303 C304 C305 C306 C310 C311 C312 C313 C314 C315 C316 C320 C321 C322 C323 C331 C333 C334 C400 C401 C402 C403 C404 C405 C406 C407 C408 C409 C410

Motorola Part No. 2109445U46 2109445U13 2113743L21 2113743L19 2113743L41 2113743E20 2113743L41 2113743E20 2113743L19 2113743N19 2113743L19 2113743L19 2113743N25 2113743L19 2113743L19 2113743E20 2113743N27 2113743N43 2113743N39 2113743L19 2113743L07 2113743L07 2311049A97 2113743L41 2113743N50 2113741F49 2113743L41 2113743E05 2311049A57 2113743L41 2113743L19 2113743L19 2113743L19 2113743E05 2311049A57 2113743L41 2113743N54 2113743L41 2113743L41 2311049A57 Not_Placed 2113743M24 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2311049A57

Description CAP, 36pF CAP, 2.7pF CAP, 1500pF CAP, 1200pF CAP, .01uF CAP, 0.1uF CAP, .01uF CAP, 0.1uF CAP, 1200pF CAP, 5.1pF CAP, 1200pF CAP, 1200pF CAP, 9.1pF CAP, 1200pF CAP, 1200pF CAP, 0.1uF CAP, 11pF CAP, 51pF CAP, 36pF CAP, 1200pF CAP, 390pF CAP, 390pF CAPP, 33uF CAP, .01uF CAP, 100pF CAP, .01uF CAP, .01uF CAP, .018uF CAPP, 10uF CAP, .01uF CAP, 1200pF CAP, 1200pF CAP, 1200pF CAP, .018uF CAPP, 10uF CAP, .01uF CAP, 150pF CAP, .01uF CAP, .01uF CAPP, 10uF CAP, .022uF CAP, 0.1uF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAPP, 10uF

November 24, 2003

6-20

Circuit Ref C411 C412 C413 C414 C415 C416 C417 C418 C419 C420 C421 C422 C430 C431 C432 C433 C440 C441 C442 C443 C444 C445 C446 C447 C451 C452 C453 C454 C455 C456 C457 C458 C459 C460 C461 C462 C463 C464 C465 C466 C467 C470 C471 C472 C473 C474 C475 C476 C477 C478 C479

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

Motorola Part No. 2113743M24 2113743L17 2113743M24 2113743M24 2113743L17 2113743L17 2113743L17 2113743M24 2113743L17 2113743L41 2113743L41 2113743L41 2113743M24 2113743L17 2113743M24 2113743L17 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743M24 2113743M24 2113743E20 2113743E20 2113743E20 2113743L48 2113743E20 2113743E20 2113743E20 2113743E20 2113743E20 2113743L17 2113743E20 2113743E20 2113743E20 2113743L17 Not_Placed 2113743L19 2113743E20 2113743F18 2113743E20 2113743N54 2113743N54 2113743L48 2113743L48 2113743M24 2113743N54 2113743N54

November 24, 2003

Description CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 0.1uF CAP, 1000pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 1000pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, .022uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 470pF CAP, 1200pF CAP, 0.1uF CAP, 2.2uF CAP, 0.1uF CAP, 150pF CAP, 150pF CAP, .022uF CAP, .022uF CAP, 0.1uF CAP, 150pF CAP, 150pF

Circuit Ref C480 C481 C482 C483 C484 C488 C489 C490 C492 C493 C494 C495 C496 C497 C498 C499 C500 C501 C503 C504 C505 C506 C507 C511 C512 C513 C514 C518 C519 CR1 CR41 CR51 D51 D52 D120 D121 D201 D220 D221 D251 D261 D262 D301 D414 D440 D470 D471 D491 E451 E452 E453

Motorola Part No. 2113743E20 Not_Placed 2113743L41 2113743E20 Not_Placed 2113743L09 2113743L09 2113743L09 2113743F18 2113743L17 2113743F18 2113743F16 2113743F16 2113743E20 2113743F16 2113743N48 2113743L17 2113743F16 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2113740F59 2113743N22 2113740F59 2113743N31 2113743E20 2113743F16 4813825A19 4802246J04 4813825A19 4802245J97 4802245J97 4880973Z02 4880973Z02 4862824C03 4802233J09 4802233J09 4805649Q13 4805649Q13 4862824C01 4813833A19 4805129M41 4805729G49 4809924D18 4809924D18 4805129M41 2480640Z01 2480640Z01 2480640Z01

Description CAP, 0.1uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, .033uF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 2.2uF CAP, 1000pF CAP, 2.2uF CAP, 1uF CAP, 1uF CAP, 0.1uF CAP, 1uF CAP, 82pF CAP, 1000pF CAP, 1uF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 220pF CAP, 6.8pF CAP, 220pF CAP, 16pF CAP, 0.1uF CAP, 1uF MMBD352 HSMS2829 MMBD352 DAN235ETL DAN235ETL MA4PH261 MA4PH261 1SV232 IMN10 IMN10 1SV228 1SV228 1SV229 MBRM120ET3 MMBD501 BRPY1204W RB520S-30 RB520S-30 MMBD501 BK1005HM471 BK1005HM471 BK1005HM471

Circuit Ref E500 F301 FL51 FL52 FL53 FL54 J140 J301 J460 J470 J471 J491 L1 L2 L3 L4 L21 L22 L31 L32 L33 L40 L41 L51 L52 L53 L54 L81 L100 L101 L102 L103 L110 L120 L121 L130 L131 L132 L140 L211 L251 L252 L253 L254 L255 L262 L263 L264 L265 L270 L271

Motorola Part No. 2480640Z01 6580542Z01 9180022M11 9180468V05 9180469V05 9180469V03 0986428Z01 0986237A02 Not_Placed 0985818A01 0980683Z03 2809926G01 2413923C09 2413923C09 2413923C09 2413923C09 Not_Placed 2413926N24 2413923C09 2413923C09 2413923C09 2413923C09 2413923C09 2413926N26 2462587V44 2113743N52 2413923A25 2462587N68 2413926K32 2413926K32 2409377M17 2409377M31 2413926K32 2413926K32 2462587N49 2479990N01 2479990N01 2479990N01 2479990M01 2413926K32 2413926K32 2413926K32 2409377M17 2413923C05 2413926K29 2413926K32 2409377M17 2413923C07 2413926K29 2413926K32 Not_Placed

Description BK1005HM471 FUSE MXF45 FLTR CFWC455E CFWC455G CONN_J CONN_J CONN_J CONN_J CONN_J CONN_P IDCTR, 68nH IDCTR, 68nH IDCTR, 68nH IDCTR, 68nH IDCTR, 39nH IDCTR, 100nH IDCTR, 68nH IDCTR, 68nH IDCTR, 68nH IDCTR, 68nH IDCTR, 68nH IDCTR, 150nH IDCTR, 680nH CAP, 120pF IDCTR, 1.2uH IDCTR, 1uH IDCTR, 560nH IDCTR, 560nH IDCTR, 100nH IDCTR, 30nH IDCTR, 560nH IDCTR, 560nH IDCTR, 47nH IDCTR, 43.67nH IDCTR, 43.67nH IDCTR, 43.67nH IDCTR, 30.54nH IDCTR, 560nH IDCTR, 560nH IDCTR, 560nH IDCTR, 100nH IDCTR, 33nH IDCTR, 330nH IDCTR, 560nH IDCTR, 100nH IDCTR, 47nH IDCTR, 330nH IDCTR, 560nH IDCTR, 560nH

Circuit Ref L276 L281 L282 L283 L291 L292 L471 M140 Q21 Q22 Q51 Q70 Q100 Q150 Q170 Q171 Q280 Q311 Q312 Q313 Q402 Q403 Q410 Q440 Q470 Q471 Q472 Q481 Q482 Q490 Q493 Q494 Q520 R20 R21 R22 R23 R24 R25 R26 R40 R51 R52 R53 R54 R55 R57 R60 R61 R62 R63

Motorola Part No. 2413926N24 2413926N22 2413926N20 Not_Placed 2413926N17 2413926N22 2413926K30 0286427Z01 4802245J95 4805723X02 4802197J95 4880214G02 4802245J95 4880214G02 4809939C34 4880048M01 4802245J95 4809579E18 4809579E18 4802245J54 4880048M01 4813824A17 4802245J54 5180159R01 4805723X02 4802245J54 4805723X02 Not_Placed 4813824A10 4802245J54 4809579E18 4802245J54 4813824A10 0662057U97 0662057M54 0662057M94 0662057V11 0662057M71 0662057M92 0662057M01 0662057M74 0662057M43 0662057N01 0662057N11 0662057M91 0662057M62 0662057M90 0662057M83 0662057N23 0662057M86 0662057N13

Description IDCTR, 100nH IDCTR, 68nH IDCTR, 47nH IDCTR, 270nH IDCTR, 27nH IDCTR, 68nH IDCTR, 390nH ANTENNA_NUT BFS540 UMT1 PBR941 MMBT3904 BFS540 MMBT3904 EMB10 DTC144EKA BFS540 TP0101T TP0101T UMG5 DTC144EKA MMBT3906 UMG5 IMX1 UMT1 UMG5 UMT1 MMBT3906 MMBT3904 UMG5 TP0101T UMG5 MMBT3904 RES, 6.8K RES, 150 RES, 6.8K RES, 22K RES, 750 RES, 5.6K RES, 0 RES, 1K RES, 51 RES, 12K RES, 33K RES, 5.1K RES, 330 RES, 4.7K RES, 2.4K RES, 100K RES, 3.3K RES, 39K

HKLN4216A

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

Circuit Ref R64 R65 R66 R67 R72 R73 R74 R75 R76 R77 R78 R80 R81 R82 R90 R91 R100 R101 R102 R103 R104 R105 R106 R107 R110 R111 R120 R121 R150 R151 R152 R153 R154 R155 R156 R157 R158 R162 R202 R205 R206 R212 R220 R221 R223 R227 R230 R243 R244 R245 R246

Motorola Part No. 0662057N06 0662057N13 0662057N06 0662057N06 0662057M64 0662057M80 0662057M76 0662057N01 0662057V04 0662057U99 0662057M70 0662057M91 0662057M74 Not_Placed 0662057M43 0662057M79 0662057M61 0662057M32 0662057M61 0662057M86 0662057A18 0662057M76 0662057M90 0662057M54 0662057M63 Not_Placed 0662057C55 0662057C55 0680539Z01 0662057A09 0662057V27 0662057V27 0662057V27 0662057V27 0662057M62 0662057M92 0662057M78 0662057M98 0662057N27 0662057M50 Not_Placed 0662057C01 0662057M54 0662057M54 0662057M50 0662057N27 0662057N30 0662057M81 0662057M43 0662057M78 0662057N23

HKLN4216A

Description RES, 20K RES, 39K RES, 20K RES, 20K RES, 390 RES, 1.8K RES, 1.2K RES, 12K RES, 12K RES, 8.2K RES, 680 RES, 5.1K RES, 1K RES, 0 RES, 51 RES, 1.6K RES, 300 RES, 18 RES, 300 RES, 3.3K RES, 51 RES, 1.2K RES, 4.7K RES, 150 RES, 360 RES, 2.7K RES, 150 RES, 150 RES, 0.1 RES, 22 RES, 100K RES, 100K RES, 100K RES, 100K RES, 330 RES, 5.6K RES, 1.5K RES, 10K RES, 150K RES, 100 RES, 100 RES, 0 RES, 150 RES, 150 RES, 100 RES, 150K RES, 200K RES, 2K RES, 51 RES, 1.5K RES, 100K

Circuit Ref R247 R248 R253 R254 R255 R261 R262 R263 R264 R270 R271 R272 R273 R274 R275 R276 R280 R281 R282 R283 R284 R286 R310 R311 R312 R313 R320 R321 R322 R400 R410 R411 R412 R413 R414 R415 R416 R417 R418 R419 R420 R421 R422 R423 R424 R425 R430 R431 R432 R433 R434

Motorola Part No. 0662057N33 0662057M43 0662057M42 0662057M58 0662057U91 0662057N16 0662057M94 0662057M37 0662057M58 0662057M32 0662057M96 0662057M97 0662057M61 0662057M38 0662057M01 0662057M74 0662057M94 0662057M97 0662057M71 0662057M56 0662057M62 0662057M01 0662057N23 0662057N23 0662057N06 0662057N06 0662057V43 0662057V35 0662057N23 Not_Placed 0662057M98 0662057M72 0662057N23 0662057N23 0662057N11 0662057N11 0662057N06 0662057M98 0662057N23 0662057M90 0662057V35 0662057V27 0662057N23 0662057N23 0662057V35 0662057V27 0662057N23 Not_Placed 0662057M01 0662057N23 Not_Placed

6-21

Description RES, 270K RES, 51 RES, 47 RES, 220 RES, 3.9K RES, 51K RES, 6.8K RES, 30 RES, 220 RES, 18 RES, 8.2K RES, 9.1K RES, 300 RES, 33 RES, 0 RES, 1K RES, 6.8K RES, 9.1K RES, 750 RES, 180 RES, 330 RES, 0 RES, 100K RES, 100K RES, 20K RES, 20K RES, 330K RES, 200K RES, 100K RES, 100K RES, 10K RES, 820 RES, 100K RES, 100K RES, 33K RES, 33K RES, 20K RES, 10K RES, 100K RES, 4.7K RES, 200K RES, 100K RES, 100K RES, 100K RES, 200K RES, 100K RES, 100K RES, 100K RES, 0 RES, 100K RES, 100K

Circuit Ref R440 R441 R442 R443 R445 R446 R451 R460 R462 R463 R464 R469 R470 R471 R472 R473 R474 R475 R476 R477 R478 R479 R480 R481 R482 R483 R484 R485 R486 R487 R488 R489 R490 R491 R492 R493 R494 R495 R496 R497 R498 R499 R501 R502 R503 R504 R505 R506 R507 R508 R509

Motorola Part No. 0662057M90 0662057M90 0662057A33 0662057A27 0662057M90 0662057M98 0662057N15 0662057N08 0662057N08 0662057N08 0662057N10 0662057M26 0662057M82 0662057M82 0662057M70 0662057M70 0662057A37 0662057N29 0662057N23 0662057M82 0662057M82 0662057N23 0662057B47 0662057N23 0662057N35 0662057N27 Not_Placed 0662057N23 0662057N23 0662057M01 0662057N35 0662057A96 Not_Placed 0662057M01 0662057N08 0662057N35 0662057V43 0662057M92 Not_Placed 0662057N47 0662057N15 0662057N33 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057N23 0662057N23

Description RES, 4.7K RES, 4.7K RES, 220 RES, 120 RES, 4.7K RES, 10K RES, 47K RES, 24K RES, 24K RES, 24K RES, 30K RES, 10 RES, 2.2K RES, 2.2K RES, 680 RES, 680 RES, 330 RES, 180K RES, 100K RES, 2.2K RES, 2.2K RES, 100K RES, 0 RES, 100K RES, 330K RES, 150K RES, 2.2K RES, 100K RES, 100K RES, 0 RES, 330K RES, 91K RES, 2.2K RES, 0 RES, 24K RES, 330K RES, 330K RES, 5.6K RES, 10K RES, 1MEG RES, 47K RES, 270K RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100K RES, 100K

Circuit Ref R510 R511 R512 R513 R514 R515 R516 R517 R518 R519 R520 R521 S440 S441 S442 S443 S444 SH1 SH40 SH50 SH52 SH100 SH200 SH201 SH250 SH251 SH253 SH400 SH401 T41 T42 U51 U52 U110 U150 U151 U201 U251 U310 U320 U330 U401 U402* U403 U404* U451 U480 U490 U510 U511 VR110

Motorola Part No. 0662057N35 0662057N23 0662057N27 Not_Placed 0662057N23 Not_Placed Not_Placed 0662057M01 0662057N31 0662057N23 0662057N23 0662057N23 4080710Z06 4070354A01 4070354A01 4070354A01 1880619Z02 2686421Z01 2686419Z01 2686423Z01 2686424Z01 2686418Z01 2686424Z01 2686423Z01 2686425Z01 2686425Z01 2686422Z01 2686420Z01 2686420Z01 2580541Z02 2580541Z02 5186144B01 5109522E10 0186438Z01 5113818A01 2484657R01 5185963A27 5105750U54 5102478J01 5185963A55 5102479J01 5102226J56 5102463J64 Not_Placed 5102480J01 5185130C53 5113818A01 5108858K99 5113818A01 4802245J54 4813830A82

Description RES, 330K RES, 100K RES, 150K RES, 100K RES, 100K RES, 0 RES, 0 RES, 0 RES, 220K RES, 100K RES, 100K RES, 100K SWITCH SWITCH SWITCH SWITCH SWITCH SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD XFMR XFMR SA616 TC7W04F RA07M1317M_VHF LM2904 57R01 63A27 50U54 TK71750S LP2986 TK71730S MC68HC11FL0 X25128-2.7 SRM2B256 AT49LV001N_70VI 30C53 LM2904 TDA8541 LM2904 UMG5 MM3Z4V3T1

November 24, 2003

6-22

VHF 146-174 MHz PCB 8486342Z13-C Schematic Diagrams, Overlays, and Parts Lists

Circuit Ref VR301 VR302 VR471 VR472 VR473 VR474 VR475 Y51 Y70 Y201* Y202

Motorola Part No.

Description

4813830A33 MMBZ5250B 4813830A33 MMBZ5250B 4813830A18 MMBZ5235B 4813830A09 MMBZ5226B 4813830A33 MMBZ5250B 4813830A33 MMBZ5250B 4880140L20 MMBZ5245B 4802245J84 TSS2_44_395 9186145B02 45B02 4880114R06 14R06 Not_Placed 45J68 * Motorola Depot Servicing only

Circuit Ref R11 R12 R13 R14 R15

Motorola Part No. 0662057A41 0662057A41 NOTPLACED NOTPLACED NOTPLACED

Description RES, 470 RES, 470 RES, 330 RES, 330 RES, 330

VHF (146-174 MHz) Keypad Board Parts List

Circuit Ref C1 C2 C3 C4 C5 C6 C7 C8 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 J1 J2 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10

Motorola Part No. NOTPLACED 2113740F55 NOTPLACED 2113743E20 NOTPLACED NOTPLACED NOTPLACED NOTPLACED 4809496B11 4809496B11 NOTPLACED NOTPLACED NOTPLACED NOTPLACED NOTPLACED NOTPLACED 4809496B11 4809496B11 4809496B11 09_54548_091 1_9pin 09_52892_289 0_28PIN 0662057A97 NOTPLACED NOTPLACED NOTPLACED NOTPLACED 0662057A97 0662057A76 0662057A81 NOTPLACED NOTPLACED

November 24, 2003

Description CAP, 150pF CAP, 150pF CAP, 150pF CAP, 0.1uF CAP, 150pF CAP, 150pF CAP, 150pF CAP, 150pF QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 CONN_J CONN_J RES, 100K RES, 13K RES, 22K RES, 43K RES, 130K RES, 100K RES, 13K RES, 22K RES, 43K RES, 130K

HKLN4216A

Chapter 7 403-440 MHz UHF Theory Of Operation

7.1

7.2

UHF Receiver The UHF receiver covers the range of 403-440 MHz and provides switchable IF bandwidth for use with 20/25/30 kHz or 12.5 kHz channel spacing systems. The receiver is divided into two major blocks, as shown in Figure 7-1. â&#x20AC;˘ Front End â&#x20AC;˘ Back End Preselector Filter

RF Amp

Interstage 1st Mixer Filter

Crystal Filter

IF Amp

RX from Antenna Switch Inj Filter First LO from Synthesizer

BW_SEL 6G

Ceramic Resonator

Recovered Audio

6E Switching

Cer Fltr 4E

Demodulator

RSSI

Figure 7-1. UHF Receiver Block Diagram

7.2.1

Receiver Front End Incoming RF signals from the antenna are first routed through the harmonic filter and antenna switch, part of the transmitter circuitry, before being applied to the receiver front end. The receiver front end consists of a preselector filter, RF amplifier, an interstage filter, and a double-balanced first mixer. The preselector filter is a fixed-tuned 3-pole Butterworth design using discrete elements (L1-L3, C1C10, C12 and C523) in a shunt-resonator configuration. It has a 3 dB bandwidth of 68 MHz centered at 421 MHz, an insertion loss of 2.2 dB and image attenuation of 38 dB at 350 MHz. Diode CR1 protects the RF amplifier by limiting excessive RF levels. The filter bandwidth is considerably wider than the receive band, to achieve low insertion loss in a compact size. C523 provides a transmissionzero to improve image attenuation. The output of the filter is matched to the base of RF amplifier Q21, which provides 18 dB of gain and a noise figure of 4 dB. A BFS505 device is used for high gain, low noise figure and reduced operating current. Operating voltage is obtained from the 5R source, which is turned off during transmit to reduce dissipation in Q21. Current mirror Q22 maintains the operating current of Q21 constant at 8 mA regardless of device and temperature variations, for optimum dynamic range and noise figure.

7-2

403-440 MHz UHF Theory Of Operation: UHF Receiver

The output of the RF amplifier is applied to the interstage filter, a fixed-tuned 4-pole Butterworth shunt-coupled resonator design having a 3 dB bandwidth of 68 MHz centered at 462 MHz, and insertion loss of 3.5 dB. This filter yields an image rejection of 58 dB at 350 MHz, assisted by a transmission-zero at 300 MHz implemented by C524 for the reasons mentioned above. The output of the interstage filter is connected to the passive double-balanced mixer consisting of components T41, T42, and CR41. This mixer has a conversion loss of 7.2 dB. Low-side injection from the frequency synthesizer is filtered by L40-L41 and C41-C45 to remove second harmonic energy that may degrade half-IF spurious rejection performance. The injection filter has a 3 dB bandwidth of 100 MHz centered at 376.15 MHz, and an insertion loss of 2.7 dB. The second-harmonic rejection is typically 45 dB or greater. The filtered injection signal is applied to T42 at a level of +6 dBm. The mixer output is applied to a diplexer network (L51-L52, C51, R51) which matches the 44.85 MHz IF signal to crystal filter FL51, and terminates the mixer into 50â&#x201E;Ś at all other frequencies.

7.2.2

Receiver Back End The receiver back end is a dual conversion design. High IF selectivity is provided by FL51, a 4-pole fundamental mode 44.85 MHz crystal filter with a minimum 3 dB bandwidth of Âą6.7 kHz, a maximum 20 dB bandwidth of + 12.5 kHz, and a maximum insertion loss of 3.5 dB. The output is matched to IF amplifier stage Q51 by L53 and C93. Q51 provides 16 dB of gain and a noise figure of 1.8 dB. The dc operating current is 1 mA. The output of Q51 is applied to the input of the receiver IFIC U51. Diode CR51 limits the maximum RF level applied to the IFIC. The IFIC is a low-voltage monolithic FM IF system incorporating a mixer/oscillator, two limiting IF amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage regulator and audio and RSSI op amps. The second LO frequency, 44.395 MHz, is determined by Y51. The second mixer converts the 44.85 MHz high IF frequency to 455 kHz. Additional IF selectivity is provided by two ceramic filters, FL52 (between the second mixer and IF amp) and FL53 or FL54 (between the IF amp and the limiter input). The wider filter FL53 is used for 20/25 kHz channel spacing, and the narrower filter FL54 is used for 12.5 kHz channels. When the BW_SEL line is high, the two upper diodes in packages D51 and D52 are forward biased, selecting FL53 for 20/25 kHz channels. When the BW_SEL line is low, the two lower diodes in packages D51 and D52 are forward biased, selecting FL54 for 12.5 kHz channels. The ceramic filters have the following specifications:

FL52

FL53

FL54

Number of Elements:

Insertion Loss:

4 dB

6 dB Bandwidth:

15 kHz

9 kHz

50 dB Bandwidth:

30 kHz

22 kHz

Stopband Rejection:

27 dB

47 dB

Ceramic resonator Y70 provides phase vs. frequency characteristic required by the quadrature detector, with 90 degree phase shift occurring at 455 kHz. Buffer Q70 provides a lower driving impedance from the limiter to the resonator, improving the IF waveform and lowering the distortion of the recovered audio signal. The recovered audio level at the DEMOD output is 120 mV rms (25 kHz channel, 3 kHz deviation) or 60 mV rms (12.5 kHz channel, 1.5 kHz deviation). An additional RSSI output provides a DC voltage level that is proportional to RF signal level. This voltage is measured by an A/D converter contained in the microprocessor (PE4_AN4, U401 pin 63). November 24, 2003

HKLN4216A

403-440 MHz UHF Theory Of Operation: UHF Transmitter

7.3

7-3

UHF Transmitter The UHF transmitter covers the range of 403-440 MHz. Depending on model, the output power of the transmitter is either switchable on a per-channel basis between high power (4 watts) and low power (1 watt), or is factory preset to 2 watts. The transmitter is divided into four major blocks as shown in Figure 7-2. • • • •

Power Amplifier Harmonic Filter Antenna Matching Network Power Control. USWB+

TX_ENA Power Control PWR_SET VGG

VDD

5T TX_INJ (From VCO)

Q100

Power Amplifier Module U110

RX_IN (To Receiver)

Harmonic Filter

Antenna Switch

J140 Antenna Jack Antenna

Antenna Matching Network

Figure 7-2. UHF Transmitter Block Diagram

7.3.1

Transmitter Power Amplifier The transmitter power amplifier has three stages of amplification. The first stage, Q100, operates in Class A from the 5T source. It provides 17 dB of gain and an output of 50 mW. The current drain is typically 35mA. Components C105, C107 and L103 match the output of Q100 to the 50Ω input of the module U110. U110 is a two stage Silicon MOS FET power amplifier module. Drain voltage is obtained from UNSW B+ after being routed through current-sense resistor R150 in the power control circuit. The output power of the module is controlled by varying the DC gate bias on U110 pin 2 (VGG).

7.3.2

Antenna Switch The antenna switch consists of two pin diodes, D120 and D121. In the receive mode, both diodes are off. Signals applied at the antenna or at jack J140 are routed, via the harmonic filter, through network C122-C124 and L121, to the receiver input. In the transmit mode, Q170 is on and TXB+ is present, forward-biasing both diodes into conduction. The diode current is 20 mA, set by R120-R121. The transmitter RF from U110 is routed through D120, and via the harmonic filter to the antenna jack. D121 conducts, shunting RF power and preventing it from reaching the receiver. L121 is selected to appear as a 1/4 wave at UHF, so that the low impedance of D121 appears as a high impedance at the junction of D120 and the harmonic filter input. This provides a high series impedance and low shunt impedance divider between the power amplifier output and receiver input.

7.3.3

Harmonic Filter The harmonic filter consists of components C122 (Range 1 UHF) C136 and L130-L132. The harmonic filter is a seven-pole Chebychev low-pass configuration, optimized for low insertion loss, with a 3 dB frequency of approximately 600 MHz and typically less than 0.8 dB insertion loss in the passband.

HKLN4216A

November 24, 2003

7-4

7.3.4

403-440 MHz UHF Theory Of Operation: UHF Frequency Generation Circuitry

Antenna Matching Network The harmonic filter presents a 50â&#x201E;Ś impedance to antenna jack J140. A matching network, made up of C140-C141 and L140, is used to match the antenna impedance to the harmonic filter. This optimizes the performance of the transmitter and receiver into the impedance presented by the antenna, significantly improving the antenna's efficiency.

7.3.5

7.4

UHF Frequency Generation Circuitry The frequency generation system, shown in Figure 7-3, is composed of two circuit blocks, the Fractional-N synthesizer IC U201, the VCO/Buffer IC U251, and associated circuitry. Figure 7-4 shows the peripheral interconnect and support circuitry used in the synthesizer block, and Figure 7-5 details the internal circuitry of the VCOBIC and its interconnections to the surrounding components. Refer to the schematic to identify reference designators. The Fractional-N synthesizer is powered by regulated 5 V and 3 V provided by U310 and U330 respectively. 5 V is applied to U201 pins 13 and 30, and 3 V is applied to pins 5, 20, 34 and 36. The synthesizer in turn generates a super-filtered 4.5 V supply (VSF, from pin 28) to power U251. In addition to the VCO, the synthesizer also interfaces with the logic and ASFICcmp circuits. Programming for the synthesizer is accomplished through the microprocessor SPI_DATA_OUT,

November 24, 2003

HKLN4216A

403-440 MHz UHF Theory Of Operation: UHF Frequency Generation Circuitry

7-5

SPI_CLK, and SYNTH_CS (chip select) lines (U409 pins 100, 1 and 47 respectively). A logic high (3 V) from U201 pin 4 indicates to the microprocessor that the synthesizer is locked.

Voltage Multiplier

TRB

VCP Vmult1

Rx VCO Circuit

Aux3

Synthesizer U201

Vmult2

16.8 MHz Ref. Osc.

Buffer Q280 Rx Out

VCOBIC U251

Loop Filter MOD Out

Modulating Signal

To Mixer

Tx Out

To PA Driver

Tx VCO Circuit

Figure 7-3. UHF Frequency Generation Unit Block Diagram Transmit modulation from the ASFICcmp (U451 pin 40) is applied to U201 pin 10 (MOD_IN). An electronic attenuator in the ASFICcmp adjusts overall transmitter deviation by varying the audio level applied to the synthesizer IC. Internally the audio is digitized by the Fractional-N synthesizer and applied to the loop divider to provide the low-port modulation. The audio is also routed through an internal attenuator for the purpose of balancing the low port and high port modulation and reducing the deviation by 6 dB for 12.5 kHz channels, and is available at U201 pin 41 (VCO_MOD). This audio signal is routed to the VCO's modulator.

7.4.1

Fractional-N Synthesizer The Fractional-N synthesizer, shown in Figure 7-4, uses a 16.8 MHz crystal (Y201) to provide the reference frequency for the system. External components C201-C203, R202 and D201 are also part of the temperature-compensated oscillator circuit. The dc voltage applied to varactor D201 from U201 pin 25 is determined by a temperature-compensation algorithm within U201, and is specific to each crystal Y201, based on a unique code assigned to the crystal that identifies its temperature characteristics. Stability is better than 2.5 ppm over temperatures of -30 to 60째C. Softwareprogrammable electronic frequency adjustment is achieved by an internal DAC which provides a frequency adjustment voltage from U201 pin 25 to varactor D201. The synthesizer IC U201 further divides the 16.8 MHz signal to 2.1 MHz, 2.225 MHz, or 2.4 MHz for use as reference frequencies. It also provides a buffered 16.8 MHz signal at U201 pin 19 for use by the ASFICcmp. To achieve fast locking of the synthesizer, an internal adapt charge pump provides higher current at U201 pin 45 to quickly force the synthesizer within lock range. The required frequency is then locked by the normal mode charge pump at pin 43. A loop filter (C243-C245 and R243-R245) removes noise and spurs from the steering voltage applied to the VCO varactors, with additional filtering located in the VCO circuit. Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier made up of C221-C224 and D220-D221. Two 3 V square waves from U201 pins 14-15 provide the drive signals for the voltage multiplier, which generates 12.1 V at U201 pin 47. This voltage is filtered by C225-C228.

HKLN4216A

November 24, 2003

7-6

403-440 MHz UHF Theory Of Operation: UHF Frequency Generation Circuitry

One of the auxiliary outputs of the synthesizer IC (AUX3, U201 pin 2) provides the TRB signal which determines the operating mode of the VCO, either receive or transmit.

DATA (U401 Pin 100) CLOCK (U401 Pin 1) SYNTH_CS (U401 Pin 47) MOD IN (U451 Pin 40) +5V (U310 Pin 5) +3V (U330 Pin 5)

7 8 9 10

LOCK

DATA

FREFOUT

CLK CEX

GND

MODIN

IOUT

VCC , 5V

IADAPT

13,30 5,20,34,36 23

Reference Oscillator

U201 Low Voltage MODOUT Fractional-N Synthesizer

VDD , 3V XTAL1

AUX3 25 32 47

WARP

SFOUT

PREIN

BIAS1

VCP VMULT2 VMULT1

BIAS2

LOCK (U401 Pin 56)

FREF (U451 Pin 34)

6,22,23,24 43 45

2-Pole Loop Filter

Steering Line LO RF Injection

VCO Mod 2

TRB

Filtered 5V

Voltage Controlled Oscillator

40 39

TX RF Injection (First Stage of PA)

Voltage Multiplier Prescaler In

Figure 7-4. UHF Synthesizer Block Diagram

7.4.2

Voltage Controlled Oscillator (VCO) The VCOBIC (U251), shown in Figure 7-5, in conjunction with the Fractional-N synthesizer (U201) generates RF in both the receive and the transmit modes of operation. The TRB line (U251 pin 19) determines which oscillator and buffer are enabled. A sample of the RF signal from the enabled oscillator is routed from U251 pin 12 through a low pass filter, to the prescaler input of the synthesizer IC (U201 pin 32). After frequency comparison in the synthesizer, a resultant DC control voltage is used to steer the VCO frequency. When the PLL is locked on frequency, this voltage can vary between 3.5 V and 10 V. L251 and C252 further attenuate noise and spurs on the steering line voltage. In the receive mode, the TRB line (U251 pin 19) is low. This activates the receive VCO and the receive buffer of U251, which operate within the range of 358.15 to 395.15 MHz. The VCO frequency is determined by tank inductor L254, C253-C257, and varactor D251. The buffered RF signal at U251 pin 8 is further amplified by Q280 and applied as RX_INJ to the low-pass injection filter in the receiver front end circuit. In the transmit mode, U251-19 is driven high by U201 pin 2, enabling the transmit VCO and buffer. The 438-470 MHz RF signal from U251 pin 10 is applied as TX_INJ to the input of the transmitter circuit via matching network C290-C291 and L291. TX VCO frequency is determined by L264, C263-

November 24, 2003

HKLN4216A

403-440 MHz UHF Theory Of Operation: Keypad

7-7

C267, and varactor D262. High-port audio modulation from the synthesizer IC is applied as VCO_MOD to varactor D261 which modulates the transmit VCO. AUX3 (U201 Pin 2) TRB_IN Pin 20

Pin 19

Pin 7

TX/RX/BS Switching Network

Pin 13

NC V_SF (U201 Pin 28)

Pin 3

Steer Line Voltage (V_STEER)

Vcc-Superfilter

Presc

Pin 12

U251 VCOBIC Pin 8

RX RX

RX Tank

RX VCO Circuit

TX Tank

TX VCO Circuit

Rx Active Bias

RX INJ

Pin 14

Pin 6

VCC Buffers

Pin 16

Tx Active Bias

Matching Network

Vsens Circuit Pin 18

3V (U330 Pin 5)

Pin 10

Pin 15

Vcc-Logic

U201 Pin 32

Buffer Q280

Pin 4 Collector/RF in Pin 5

Prescaler Out

Pin 2 Rx-I adjust

TX INJ

Pin 1 Pins 9,11,17 Tx-I adjust

V_SF (U201 Pin 28)

3V (U330 Pin 5)

Figure 7-5. UHF VCO Block Diagram

7.5

Keypad

Keypad Column

Keypad Row Keypad Column

28 Pin Connector (Main Board)

Keypad Row Keypad Button

28 Pin Connector (keypad Board)

The keypad block diagram is shown in Figure 7-6. Pressing a key creates two distinct voltages KEYPAD_ROW and KEYPAD_COL. These voltages are sent directly to the radioâ&#x20AC;&#x2122;s microprocessor on the main board. The microprocessor then interprets the voltage for KEYPAD_ROW and KEYPAD_COL for each key press.

Keypad Row Keypad Column

MCP

Figure 7-6. Keypad Block Diagram

HKLN4216A

November 24, 2003

7-8

403-440 MHz UHF Theory Of Operation: Keypad

Notes:

November 24, 2003

HKLN4216A

Chapter 8 438-470 MHz UHF Theory Of Operation

8.1

8.2

UHF Receiver The UHF receiver covers the range of 438-470 MHz and provides switchable IF bandwidth for use with 20/25/30 kHz or 12.5 kHz channel spacing systems. The receiver is divided into two major blocks, as shown in Figure 8-1. â&#x20AC;˘ Front End â&#x20AC;˘ Back End Preselector Filter

RF Amp

Interstage 1st Mixer Filter

Crystal Filter

IF Amp

RX from Antenna Switch Inj Filter First LO from Synthesizer

BW_SEL 6G

Ceramic Resonator

Recovered Audio

6E Switching

Cer Fltr 4E

Demodulator

RSSI

Figure 8-1. UHF Receiver Block Diagram

8.2.1

Receiver Front End Incoming RF signals from the antenna are first routed through the harmonic filter and antenna switch, part of the transmitter circuitry, before being applied to the receiver front end. The receiver front end consists of a preselector filter, RF amplifier, an interstage filter, and a double-balanced first mixer. The preselector filter is a fixed-tuned 3-pole Butterworth design using discrete elements (L1-L3, C1C10, C12 and C523) in a shunt-resonator configuration. It has a 3 dB bandwidth of 68 MHz centered at 460 MHz, an insertion loss of 2 dB and image attenuation of 35 dB at 380 MHz. Diode CR1 protects the RF amplifier by limiting excessive RF levels. The filter bandwidth is considerably wider than the receive band, to achieve low insertion loss in a compact size. C523 provides a transmissionzero to improve image attenuation. The output of the filter is matched to the base of RF amplifier Q21, which provides 18 dB of gain and a noise figure of 4 dB. A BFS505 device is used for high gain, low noise figure and reduced operating current. Operating voltage is obtained from the 5R source, which is turned off during transmit to reduce dissipation in Q21. Current mirror Q22 maintains the operating current of Q21 constant at 8 mA regardless of device and temperature variations, for optimum dynamic range and noise figure.

8-2

438-470 MHz UHF Theory Of Operation: UHF Receiver

The output of the RF amplifier is applied to the interstage filter, a fixed-tuned 4-pole Butterworth shunt-coupled resonator design having a 3 dB bandwidth of 68 MHz centered at 462 MHz, and insertion loss of 3 dB. This filter yields an image rejection of 48 dB at 380 MHz, assisted by a transmission-zero at 300 MHz implemented by C524 for the reasons mentioned above. The output of the interstage filter is connected to the passive double-balanced mixer consisting of components T41, T42, and CR41. This mixer has a conversion loss of 7.2 dB. Low-side injection from the frequency synthesizer is filtered by L40-L41 and C41-C45 to remove second harmonic energy that may degrade half-IF spurious rejection performance. The injection filter has a 3 dB bandwidth of 100 MHz centered at 408 MHz, and an insertion loss of 2 dB. The second-harmonic rejection is typically 40 dB or greater. The filtered injection signal is applied to T42 at a level of +6 dBm. The mixer output is applied to a diplexer network (L51-L52, C51, R51) which matches the 44.85 MHz IF signal to crystal filter FL51, and terminates the mixer into 50â&#x201E;Ś at all other frequencies.

8.2.2

FL52

FL53

FL54

Number of Elements:

Insertion Loss:

4 dB

6 dB Bandwidth:

15 kHz

9 kHz

50 dB Bandwidth:

30 kHz

22 kHz

Stopband Rejection:

27 dB

47 dB

HKLN4216A

438-470 MHz UHF Theory Of Operation: UHF Transmitter

8.3

8-3

UHF Transmitter The UHF transmitter covers the range of 438-470 MHz. Depending on model, the output power of the transmitter is either switchable on a per-channel basis between high power (4 watts) and low power (1 watt). The transmitter is divided into four major blocks as shown in Figure 8-2. • • • •

Power Amplifier Harmonic Filter Antenna Matching Network Power Control. USWB+

TX_ENA Power Control PWR_SET VGG

VDD

5T TX_INJ (From VCO)

Q100

Power Amplifier Module U110

RX_IN (To Receiver)

Harmonic Filter

Antenna Switch

J140 Antenna Jack Antenna

Antenna Matching Network

Figure 8-2. UHF Transmitter Block Diagram

8.3.1

Transmitter Power Amplifier The transmitter power amplifier has three stages of amplification. The first stage, Q100, operates in Class A from the 5T source. It provides 17 dB of gain and an output of 50 mW. The current drain is typically 30mA. Components C105 and L103 match the output of Q100 to the 50Ω input of the module U110. U110 is a two stage Silicon MOS FET power amplifier module. Drain voltage is obtained from UNSW B+ after being routed through current-sense resistor R150 in the power control circuit. The output power of the module is controlled by varying the DC gate bias on U110 pin 2 (VGG).

8.3.2

Antenna Switch The antenna switch consists of two pin diodes, D120 and D121. In the receive mode, both diodes are off. Signals applied at the antenna or at jack J140 are routed, via the harmonic filter, through network C122-C124 and L121, to the receiver input. In the transmit mode, Q170 is on and TXB+ is present, forward-biasing both diodes into conduction. The diode current is 20 mA, set by R120-R121. The transmitter RF from U110 is routed through D120, and via the harmonic filter to the antenna jack. D121 conducts, shunting RF power and preventing it from reaching the receiver. L121 is selected to appear as a 1/4 wave at UHF, so that the low impedance of D121 appears as a high impedance at the junction of D120 and the harmonic filter input. This provides a high series impedance and low shunt impedance divider between the power amplifier output and receiver input.

8.3.3

Harmonic Filter The harmonic filter consists of components C130-C136 and L130-L132. The harmonic filter is a seven-pole Chebychev low-pass configuration, optimized for low insertion loss, with a 3 dB frequency of approximately 600 MHz and typically less than 0.8 dB insertion loss in the passband.

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8-4

8.3.4

438-470 MHz UHF Theory Of Operation: UHF Frequency Generation Circuitry

Antenna Matching Network The harmonic filter presents a 50â&#x201E;Ś impedance to antenna jack J140. A matching network, made up of C140-C141 and L140, is used to match the antenna impedance to the harmonic filter. This optimizes the performance of the transmitter and receiver into the impedance presented by the antenna, significantly improving the antenna's efficiency.

8.3.5

8.4

UHF Frequency Generation Circuitry The frequency generation system, shown in Figure 8-3, is composed of two circuit blocks, the Fractional-N synthesizer IC U201, the VCO/Buffer IC U251, and associated circuitry. Figure 8-4 shows the peripheral interconnect and support circuitry used in the synthesizer block, and Figure 8-5 details the internal circuitry of the VCOBIC and its interconnections to the surrounding components. Refer to the schematic to identify reference designators. The Fractional-N synthesizer is powered by regulated 5 V and 3 V provided by U310 and U330 respectively. 5 V is applied to U201 pins 13 and 30, and 3 V is applied to pins 5, 20, 34 and 36. The synthesizer in turn generates a super-filtered 4.5 V supply (VSF, from pin 28) to power U251. In addition to the VCO, the synthesizer also interfaces with the logic and ASFICcmp circuits. Programming for the synthesizer is accomplished through the microprocessor SPI_DATA_OUT,

November 24, 2003

HKLN4216A

438-470 MHz UHF Theory Of Operation: UHF Frequency Generation Circuitry

8-5

SPI_CLK, and SYNTH_CS (chip select) lines (U409 pins 100, 1 and 47 respectively). A logic high (3 V) from U201 pin 4 indicates to the microprocessor that the synthesizer is locked.

Voltage Multiplier

TRB

VCP Vmult1

Rx VCO Circuit

Aux3

Synthesizer U201

Vmult2

16.8 MHz Ref. Osc.

Buffer Q280 Rx Out

VCOBIC U251

Loop Filter MOD Out

Modulating Signal

To Mixer

Tx Out

To PA Driver

Tx VCO Circuit

Figure 8-3. UHF Frequency Generation Unit Block Diagram Transmit modulation from the ASFICcmp (U451 pin 40) is applied to U201 pin 10 (MOD_IN). An electronic attenuator in the ASFICcmp adjusts overall transmitter deviation by varying the audio level applied to the synthesizer IC. Internally the audio is digitized by the Fractional-N synthesizer and applied to the loop divider to provide the low-port modulation. The audio is also routed through an internal attenuator for the purpose of balancing the low port and high port modulation and reducing the deviation by 6 dB for 12.5 kHz channels, and is available at U201 pin 41 (VCO_MOD). This audio signal is routed to the VCO's modulator.

8.4.1

Fractional-N Synthesizer The Fractional-N synthesizer, shown in Figure 8-4, uses a 16.8 MHz crystal (Y201) to provide the reference frequency for the system. External components C201-C203, R202 and D201 are also part of the temperature-compensated oscillator circuit. The dc voltage applied to varactor D201 from U201 pin 25 is determined by a temperature-compensation algorithm within U201, and is specific to each crystal Y201, based on a unique code assigned to the crystal that identifies its temperature characteristics. Stability is better than 2.5 ppm over temperatures of -30 to 60째C. Softwareprogrammable electronic frequency adjustment is achieved by an internal DAC which provides a frequency adjustment voltage from U201 pin 25 to varactor D201. The synthesizer IC U201 further divides the 16.8 MHz signal to 2.1 MHz, 2.225 MHz, or 2.4 MHz for use as reference frequencies. It also provides a buffered 16.8 MHz signal at U201 pin 19 for use by the ASFICcmp. To achieve fast locking of the synthesizer, an internal adapt charge pump provides higher current at U201 pin 45 to quickly force the synthesizer within lock range. The required frequency is then locked by the normal mode charge pump at pin 43. A loop filter (C243-C245 and R243-R245) removes noise and spurs from the steering voltage applied to the VCO varactors, with additional filtering located in the VCO circuit. Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier made up of C221-C224 and D220-D221. Two 3 V square waves from U201 pins 14-15 provide the drive signals for the voltage multiplier, which generates 12.1 V at U201 pin 47. This voltage is filtered by C225-C228.

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8-6

438-470 MHz UHF Theory Of Operation: UHF Frequency Generation Circuitry

One of the auxiliary outputs of the synthesizer IC (AUX3, U201 pin 2) provides the TRB signal which determines the operating mode of the VCO, either receive or transmit.

DATA (U401 Pin 100) CLOCK (U401 Pin 1) SYNTH_CS (U401 Pin 47) MOD IN (U451 Pin 40) +5V (U310 Pin 5) +3V (U330 Pin 5)

7 8 9 10

LOCK

DATA

FREFOUT

CLK CEX

GND

MODIN

IOUT

VCC , 5V

IADAPT

13,30 5,20,34,36 23

Reference Oscillator

U201 Low Voltage MODOUT Fractional-N Synthesizer

VDD , 3V XTAL1

AUX3 25 32 47

WARP

SFOUT

PREIN

BIAS1

VCP VMULT2 VMULT1

BIAS2

LOCK (U401 Pin 56)

FREF (U451 Pin 34)

6,22,23,24 43 45

2-Pole Loop Filter

Steering Line LO RF Injection

VCO Mod 2

TRB

Filtered 5V

Voltage Controlled Oscillator

40 39

TX RF Injection (First Stage of PA)

Voltage Multiplier Prescaler In

Figure 8-4. UHF Synthesizer Block Diagram

8.4.2

Voltage Controlled Oscillator (VCO) The VCOBIC (U251), shown in Figure 8-5, in conjunction with the Fractional-N synthesizer (U201) generates RF in both the receive and the transmit modes of operation. The TRB line (U251 pin 19) determines which oscillator and buffer are enabled. A sample of the RF signal from the enabled oscillator is routed from U251 pin 12 through a low pass filter, to the prescaler input of the synthesizer IC (U201 pin 32). After frequency comparison in the synthesizer, a resultant DC control voltage is used to steer the VCO frequency. When the PLL is locked on frequency, this voltage can vary between 3.5 V and 10 V. L251 and C252 further attenuate noise and spurs on the steering line voltage. In the receive mode, the TRB line (U251 pin 19) is low. This activates the receive VCO and the receive buffer of U251, which operate within the range of 393.15 to 425.15 MHz. The VCO frequency is determined by tank inductor L254, C253-C257, and varactor D251. The buffered RF signal at U251 pin 8 is further amplified by Q280 and applied as RX_INJ to the low-pass injection filter in the receiver front end circuit. In the transmit mode, U251-19 is driven high by U201 pin 2, enabling the transmit VCO and buffer. The 438-470 MHz RF signal from U251 pin 10 is applied as TX_INJ to the input of the transmitter circuit via matching network C290-C291 and L291. TX VCO frequency is determined by L264, C263-

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HKLN4216A

438-470 MHz UHF Theory Of Operation: Keypad

8-7

C267, and varactor D262. High-port audio modulation from the synthesizer IC is applied as VCO_MOD to varactor D261 which modulates the transmit VCO. AUX3 (U201 Pin 2) TRB_IN Pin 20

Pin 19

Pin 7

TX/RX/BS Switching Network

Pin 13

NC V_SF (U201 Pin 28)

Pin 3

Steer Line Voltage (V_STEER)

Vcc-Superfilter

Presc

Pin 12

U251 VCOBIC Pin 8

RX RX

RX Tank

RX VCO Circuit

TX Tank

TX VCO Circuit

Rx Active Bias

RX INJ

Pin 14

Pin 6

VCC Buffers

Pin 16

Tx Active Bias

Matching Network

Vsens Circuit Pin 18

3V (U330 Pin 5)

Pin 10

Pin 15

Vcc-Logic

U201 Pin 32

Buffer Q280

Pin 4 Collector/RF in Pin 5

Prescaler Out

Pin 2 Rx-I adjust

TX INJ

Pin 1 Pins 9,11,17 Tx-I adjust

V_SF (U201 Pin 28)

3V (U330 Pin 5)

Figure 8-5. UHF VCO Block Diagram

8.5

Keypad

Keypad Button

Keypad Column

Keypad Row Keypad Column

28 Pin Connector (Main Board)

Keypad Row

28 Pin Connector (keypad Board)

The keypad block diagram is shown in Figure 8-6. Pressing a key creates two distinct voltages KEYPAD_ROW and KEYPAD_COL. These voltages are sent directly to the radioâ&#x20AC;&#x2122;s microprocessor on the main board. The microprocessor then interprets the voltage for KEYPAD_ROW and KEYPAD_COL for each key press.

Keypad Row Keypad Column

MCP

Figure 8-6. Keypad Block Diagram

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8-8

438-470 MHz UHF Theory Of Operation: Keypad

Notes:

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HKLN4216A

Chapter 9 465-495 MHz UHF Theory Of Operation

9.1

9.2

UHF Receiver The UHF receiver covers the range of 465-495 MHz and provides switchable IF bandwidth for use with 20/25/30 kHz or 12.5 kHz channel spacing systems. The receiver is divided into two major blocks, as shown in Figure 9-1. â&#x20AC;˘ Front End â&#x20AC;˘ Back End Preselector Filter

RF Amp

Interstage 1st Mixer Filter

Crystal Filter

IF Amp

RX from Antenna Switch Inj Filter First LO from Synthesizer

BW_SEL 6G

Ceramic Resonator

Recovered Audio

6E Switching

Cer Fltr 4E

Demodulator

RSSI

Figure 9-1. UHF Receiver Block Diagram

9.2.1

Receiver Front End Incoming RF signals from the antenna are first routed through the harmonic filter and antenna switch, part of the transmitter circuitry, before being applied to the receiver front end. The receiver front end consists of a preselector filter, RF amplifier, an interstage filter, and a double-balanced first mixer. The preselector filter is a fixed-tuned 3-pole Butterworth design using discrete elements (L1-L3, C1C10, C12 and C523) in a shunt-resonator configuration. It has a 3 dB bandwidth of 68 MHz centered at 480 MHz, an insertion loss of 2 dB and image attenuation of 39 dB at 405.3 MHz. Diode CR1 protects the RF amplifier by limiting excessive RF levels. The filter bandwidth is considerably wider than the receive band, to achieve low insertion loss in a compact size. C523 provides a transmissionzero to improve image attenuation. The output of the filter is matched to the base of RF amplifier Q21, which provides 18 dB of gain and a noise figure of 3.3 dB. A BFS505 device is used for high gain, low noise figure and reduced operating current. Operating voltage is obtained from the 5R source, which is turned off during transmit to reduce dissipation in Q21. Current mirror Q22 maintains the operating current of Q21 constant at 8 mA regardless of device and temperature variations, for optimum dynamic range and noise figure.

9-2

465-495 MHz UHF Theory Of Operation: UHF Receiver

The output of the RF amplifier is applied to the interstage filter, a fixed-tuned 4-pole Butterworth shunt-coupled resonator design having a 3 dB bandwidth of 68 MHz centered at 480 MHz, and insertion loss of 3.3 dB. This filter yields an image rejection of 55 dB at 405.3 MHz, assisted by a transmission-zero at 300 MHz implemented by C524 for the reasons mentioned above. The output of the interstage filter is connected to the passive double-balanced mixer consisting of components T41, T42, and CR41. This mixer has a conversion loss of 7.2 dB. Low-side injection from the frequency synthesizer is filtered by L40-L41 and C41-C45 to remove second harmonic energy that may degrade half-IF spurious rejection performance. The injection filter has a 3 dB bandwidth of 100 MHz centered at 408 MHz, and an insertion loss of 2.5 dB. The second-harmonic rejection is typically 40 dB or greater. The filtered injection signal is applied to T42 at a level of +6 dBm. The mixer output is applied to a diplexer network (L51-L52, C51, R51) which matches the 44.85 MHz IF signal to crystal filter FL51, and terminates the mixer into 50â&#x201E;Ś at all other frequencies.

9.2.2

FL52

FL53

FL54

Number of Elements:

Insertion Loss:

4 dB

6 dB Bandwidth:

15 kHz

9 kHz

50 dB Bandwidth:

30 kHz

22 kHz

Stopband Rejection:

27 dB

47 dB

HKLN4216A

465-495 MHz UHF Theory Of Operation: UHF Transmitter

9.3

9-3

UHF Transmitter The UHF transmitter covers the range of 465-495 MHz. Depending on model, the output power of the transmitter is either switchable on a per-channel basis between high power (4 watts) and low power (1 watt), or is factory preset to 2 watts. The transmitter is divided into four major blocks as shown in Figure 9-2. • • • •

Power Amplifier Harmonic Filter Antenna Matching Network Power Control. USWB+

TX_ENA Power Control PWR_SET VGG

VDD

5T TX_INJ (From VCO)

Q100

Power Amplifier Module U110

RX_IN (To Receiver)

Harmonic Filter

Antenna Switch

J140 Antenna Jack Antenna

Antenna Matching Network

Figure 9-2. UHF Transmitter Block Diagram

9.3.1

Transmitter Power Amplifier The transmitter power amplifier has three stages of amplification. The first stage, Q100, operates in Class A from the 5T source. It provides 17 dB of gain and an output of 50 mW. The current drain is typically 30mA. Components C105 and L103 match the output of Q100 to the 50Ω input of the module U110. U110 is a two stage Silicon MOS FET power amplifier module. Drain voltage is obtained from UNSW B+ after being routed through current-sense resistor R150 in the power control circuit. The output power of the module is controlled by varying the DC gate bias on U110 pin 2 (VGG).

9.3.2

Antenna Switch The antenna switch consists of two pin diodes, D120 and D121. In the receive mode, both diodes are off. Signals applied at the antenna or at jack J140 are routed, via the harmonic filter, through network C122-C124 and L121, to the receiver input. In the transmit mode, Q170 is on and TXB+ is present, forward-biasing both diodes into conduction. The diode current is 20 mA, set by R120-R121. The transmitter RF from U110 is routed through D120, and via the harmonic filter to the antenna jack. D121 conducts, shunting RF power and preventing it from reaching the receiver. L121 is selected to appear as a 1/4 wave at UHF, so that the low impedance of D121 appears as a high impedance at the junction of D120 and the harmonic filter input. This provides a high series impedance and low shunt impedance divider between the power amplifier output and receiver input.

9.3.3

Harmonic Filter The harmonic filter consists of components C130-C136 and L130-L132. The harmonic filter is a seven-pole Chebychev low-pass configuration, optimized for low insertion loss, with a 3 dB frequency of approximately 655 MHz and typically less than 0.8 dB insertion loss in the passband.

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9-4

9.3.4

465-495 MHz UHF Theory Of Operation: UHF Frequency Generation Circuitry

Antenna Matching Network The harmonic filter presents a 50â&#x201E;Ś impedance to antenna jack J140. A matching network, made up of C140-C141 and L140, is used to match the antenna impedance to the harmonic filter. This optimizes the performance of the transmitter and receiver into the impedance presented by the antenna, significantly improving the antenna's efficiency.

9.3.5

9.4

UHF Frequency Generation Circuitry The frequency generation system, shown in Figure 9-3, is composed of two circuit blocks, the Fractional-N synthesizer IC U201, the VCO/Buffer IC U251, and associated circuitry. Figure 9-4 shows the peripheral interconnect and support circuitry used in the synthesizer block, and Figure 9-5 details the internal circuitry of the VCOBIC and its interconnections to the surrounding components. Refer to the schematic to identify reference designators. The Fractional-N synthesizer is powered by regulated 5 V and 3 V provided by U310 and U330 respectively. 5 V is applied to U201 pins 13 and 30, and 3 V is applied to pins 5, 20, 34 and 36. The synthesizer in turn generates a super-filtered 4.5 V supply (VSF, from pin 28) to power U251. In addition to the VCO, the synthesizer also interfaces with the logic and ASFICcmp circuits. Programming for the synthesizer is accomplished through the microprocessor SPI_DATA_OUT,

November 24, 2003

HKLN4216A

465-495 MHz UHF Theory Of Operation: UHF Frequency Generation Circuitry

9-5

SPI_CLK, and SYNTH_CS (chip select) lines (U409 pins 100, 1 and 47 respectively). A logic high (3 V) from U201 pin 4 indicates to the microprocessor that the synthesizer is locked.

Voltage Multiplier

TRB

VCP Vmult1

Rx VCO Circuit

Aux3

Synthesizer U201

Vmult2

16.8 MHz Ref. Osc.

Buffer Q280 Rx Out

VCOBIC U251

Loop Filter MOD Out

Modulating Signal

To Mixer

Tx Out

To PA Driver

Tx VCO Circuit

Figure 9-3. UHF Frequency Generation Unit Block Diagram Transmit modulation from the ASFICcmp (U451 pin 40) is applied to U201 pin 10 (MOD_IN). An electronic attenuator in the ASFICcmp adjusts overall transmitter deviation by varying the audio level applied to the synthesizer IC. Internally the audio is digitized by the Fractional-N synthesizer and applied to the loop divider to provide the low-port modulation. The audio is also routed through an internal attenuator for the purpose of balancing the low port and high port modulation and reducing the deviation by 6 dB for 12.5 kHz channels, and is available at U201 pin 41 (VCO_MOD). This audio signal is routed to the VCO's modulator.

9.4.1

Fractional-N Synthesizer The Fractional-N synthesizer, shown in Figure 9-4, uses a 16.8 MHz crystal (Y201) to provide the reference frequency for the system. External components C201-C203, R202 and D201 are also part of the temperature-compensated oscillator circuit. The dc voltage applied to varactor D201 from U201 pin 25 is determined by a temperature-compensation algorithm within U201, and is specific to each crystal Y201, based on a unique code assigned to the crystal that identifies its temperature characteristics. Stability is better than 2.5 ppm over temperatures of -30 to 60째C. Softwareprogrammable electronic frequency adjustment is achieved by an internal DAC which provides a frequency adjustment voltage from U201 pin 25 to varactor D201. The synthesizer IC U201 further divides the 16.8 MHz signal to 2.1 MHz, 2.225 MHz, or 2.4 MHz for use as reference frequencies. It also provides a buffered 16.8 MHz signal at U201 pin 19 for use by the ASFICcmp. To achieve fast locking of the synthesizer, an internal adapt charge pump provides higher current at U201 pin 45 to quickly force the synthesizer within lock range. The required frequency is then locked by the normal mode charge pump at pin 43. A loop filter (C243-C245 and R243-R245) removes noise and spurs from the steering voltage applied to the VCO varactors, with additional filtering located in the VCO circuit. Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier made up of C221-C224 and D220-D221. Two 3 V square waves from U201 pins 14-15 provide the drive signals for the voltage multiplier, which generates 12.1 V at U201 pin 47. This voltage is filtered by C225-C228.

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9-6

465-495 MHz UHF Theory Of Operation: UHF Frequency Generation Circuitry

One of the auxiliary outputs of the synthesizer IC (AUX3, U201 pin 2) provides the TRB signal which determines the operating mode of the VCO, either receive or transmit.

DATA (U401 Pin 100) CLOCK (U401 Pin 1) SYNTH_CS (U401 Pin 47) MOD IN (U451 Pin 40) +5V (U310 Pin 5) +3V (U330 Pin 5)

7 8 9 10

LOCK

DATA

FREFOUT

CLK CEX

GND

MODIN

IOUT

VCC , 5V

IADAPT

13,30 5,20,34,36 23

Reference Oscillator

U201 Low Voltage MODOUT Fractional-N Synthesizer

VDD , 3V XTAL1

AUX3 25 32 47

WARP

SFOUT

PREIN

BIAS1

VCP VMULT2 VMULT1

BIAS2

LOCK (U401 Pin 56)

FREF (U451 Pin 34)

6,22,23,24 43 45

2-Pole Loop Filter

Steering Line LO RF Injection

VCO Mod 2

TRB

Filtered 5V

Voltage Controlled Oscillator

40 39

TX RF Injection (First Stage of PA)

Voltage Multiplier Prescaler In

Figure 9-4. UHF Synthesizer Block Diagram

9.4.2

Voltage Controlled Oscillator (VCO) The VCOBIC (U251), shown in Figure 9-5, in conjunction with the Fractional-N synthesizer (U201) generates RF in both the receive and the transmit modes of operation. The TRB line (U251 pin 19) determines which oscillator and buffer are enabled. A sample of the RF signal from the enabled oscillator is routed from U251 pin 12 through a low pass filter, to the prescaler input of the synthesizer IC (U201 pin 32). After frequency comparison in the synthesizer, a resultant DC control voltage is used to steer the VCO frequency. When the PLL is locked on frequency, this voltage can vary between 3.5 V and 10 V. L251 and C252 further attenuate noise and spurs on the steering line voltage. In the receive mode, the TRB line (U251 pin 19) is low. This activates the receive VCO and the receive buffer of U251, which operate within the range of 420.15 to 450.15 MHz. The VCO frequency is determined by tank inductor L254, C253-C257, and varactor D251. The buffered RF signal at U251 pin 8 is further amplified by Q280 and applied as RX_INJ to the low-pass injection filter in the receiver front end circuit. In the transmit mode, U251-19 is driven high by U201 pin 2, enabling the transmit VCO and buffer. The 438-470 MHz RF signal from U251 pin 10 is applied as TX_INJ to the input of the transmitter circuit via matching network C290-C291 and L291. TX VCO frequency is determined by L264, C263-

November 24, 2003

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465-495 MHz UHF Theory Of Operation: Keypad

9-7

C267, and varactor D262. High-port audio modulation from the synthesizer IC is applied as VCO_MOD to varactor D261 which modulates the transmit VCO. AUX3 (U201 Pin 2) TRB_IN Pin 20

Pin 19

Pin 7

TX/RX/BS Switching Network

Pin 13

NC V_SF (U201 Pin 28)

Pin 3

Steer Line Voltage (V_STEER)

Vcc-Superfilter

Presc

Pin 12

U251 VCOBIC Pin 8

RX RX

RX Tank

RX VCO Circuit

TX Tank

TX VCO Circuit

Rx Active Bias

RX INJ

Pin 14

Pin 6

VCC Buffers

Pin 16

Tx Active Bias

Matching Network

Vsens Circuit Pin 18

3V (U330 Pin 5)

Pin 10

Pin 15

Vcc-Logic

U201 Pin 32

Buffer Q280

Pin 4 Collector/RF in Pin 5

Prescaler Out

Pin 2 Rx-I adjust

TX INJ

Pin 1 Pins 9,11,17 Tx-I adjust

V_SF (U201 Pin 28)

3V (U330 Pin 5)

Figure 9-5. UHF VCO Block Diagram

9.5

Keypad

Keypad Button

Keypad Column

Keypad Row Keypad Column

28 Pin Connector (Main Board)

Keypad Row

28 Pin Connector (keypad Board)

The keypad block diagram is shown in Figure 9-6. Pressing a key creates two distinct voltages KEYPAD_ROW and KEYPAD_COL. These voltages are sent directly to the radioâ&#x20AC;&#x2122;s microprocessor on the main board. The microprocessor then interprets the voltage for KEYPAD_ROW and KEYPAD_COL for each key press.

Keypad Row Keypad Column

MCP

Figure 9-6. Keypad Block Diagram

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465-495 MHz UHF Theory Of Operation: Keypad

Notes:

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HKLN4216A

Chapter 10 UHF Troubleshooting Tables

10.1 Troubleshooting Table for Receiver Table 10-1. Troubleshooting Table for Receiver Symptom Radio Dead (no turn-on beep, no LED indication)

Possible Causes

Procedure

Corrective Action

1. Battery dead or defective.

Substitute known good battery or battery eliminator.

Charge or replace battery.

2. Defective battery contacts.

Inspect battery contacts for corrosion or bent terminals.

Clean/repair/replace J301.

3. Blown fuse

Check voltage on each side of fuse. If blown, 0 VDC after fuse.

Check for short on output, check D301, VR301, troubleshoot/repair as needed, replace fuse.

4. DC switching fault

Verify battery voltage present at S444 pin 5 when radio is on.

Check/replace on-off-volume control S444.

Verify Q494-1 is at least 1V dc, Q494-6 is ~0.1V dc, Q493-3 is at Vbatt.

Troubleshoot/replace Q493/4.

Verify clock input to U401-90 (EXTAL) is 7.3975 MHz using high impedance probe. If clock is 3.8MHz, check for shorts on U401 pins. Connect RIB to verify communication via CPS.

Verify 16.8 MHz signal at U45134. If OK, troubleshoot/replace U451. If not present, troubleshoot U201 Synthesizer. Reprogram/reflash as needed.

Verify U401-94 (RESET) is high.

If RESET is Low, troubleshoot regulator U320. Check for shorts at U401 pins. Replace U401. Reprogram as needed.

Verify U310-5 is 5V dc, U320-5 is 3.3V dc, U330-5 is 3V dc.

Check for shorts on outputs, troubleshoot/repair as needed, replace faulty regulator.

5. Microprocessor not starting up.

6. Regulator fault

10-2

UHF Troubleshooting Tables: Troubleshooting Table for Receiver

Table 10-1. Troubleshooting Table for Receiver (Continued) Symptom No Audio

No Receive (squelch noise present)

Possible Causes

Corrective Action

1. Synthesizer out of lock Verify U201-4 is at 3V dc.

Troubleshoot synthesizer/VCO circuits.

2. Defective IFIC

Verify audio is present at U51-8.

Check Q70, Y70, U51.

3. RX audio buffer fault

Verify audio is present at U451-2.

Check U510 and associated parts.

4. ASFIC fault

Verify audio is present at U451-41. Verify U451-14 is high.

Check squelch setting, PL/DPL programming. Troubleshoot/ replace U451.

5. Audio PA fault

Verify U490-1 is <0.2V dc.

Check Q490.

Verify audio is present at U490-5 and 8.

Check/replace U490.

6. Defective speaker

Verify audio is present at speaker terminals.

If not, check continuity of J471-2 and 3. Check J491. If yes, replace speaker.

1. No first injection

Check that RF level at T42-6 is approx +6 dBm.

Check injection filter C40-44, L40-41.

Check that RF level at U251-8 is at least -8 dBm.

If yes, check Q280 and associated parts. If no, check U251 and components on pins 5 and 6.

Verify U401-49 is high in RX.

Check/replace U401

Verify Q311 gate is 0V dc in RX

Check/replace Q313.

Verify Q311 drain is 5V dc in RX.

Check for shorts, check/replace Q311.

3. Harmonic filter or antenna switch fault

Apply on-channel 100 mV RF signal at antenna port. Verify RF level at jct. C1/C2 per schematic.

Check TX harmonic filter, D120121. Should be 0V dc on D120121.

4. Back end fault

Apply on-channel 100 mV RF signal at antenna port. Measure RF levels from FL51 through U51.

Check components prior to lossof-signal point.

5. No second injection

Measure RF level at U51-3, verify approx. 280 mV rms.

If dc voltages at U51-3 and 4 are OK, check Y51 and associated parts. If not replace U51.

2. No 5R source.

November 24, 2003

Procedure

HKLN4216A

UHF Troubleshooting Tables: Troubleshooting Table for Synthesizer

10-3

10.2 Troubleshooting Table for Synthesizer Table 10-2. Troubleshooting Table for Synthesizer Symptom Synthesizer Out of Lock (RX mode only)

Synthesizer Out of Lock (TX mode only)

Synthesizer Out of Lock (RX and TX modes)

Possible Causes 1. VCO fault

Corrective Action

Verify oscillator is working, check RF level at U251-10 per schematic.

Check VCO tank components connected to U251-5 and 6.

Check dc voltages at U251 pin 2 through 6 and 10 per Table 10-4.

Check for shorts/opens, replace U251.

Verify steering line voltage is between ~3V and 10V.

Check D251 and associated components.

2. Synthesizer fault

Verify TRB line (from U201-2 to U251-19) is low in RX mode

Check for shorts, check U201 voltages per Table 10-4, replace U201 if incorrect.

3. Programming fault

Verify RX channel programming is correct.

Re-program if necessary.

1. VCO fault

Verify oscillator is working, check RF level at U251-10 per schematic.

Check VCO tank components connected to U251-15 and 16.

Check dc voltages at U251 pins 1,3,4,10,15,16 per Table 10-4.

Check for shorts/opens, replace U251.

Verify steering line voltage is between ~3V and 10V.

Check D261 and associated components.

2. Synthesizer fault

Verify TRB line (U201-2 to U251-19) is high (3V) in TX mode

Check for shorts, check U201 voltages per Table 10-4, replace U201 if incorrect.

3. Programming fault

Verify TX channel programming is correct.

Re-program if necessary.

1. VCO fault

Check that RF level at U251-12 is at least 150 mV (VHF) or -12 to -20 dBm (UHF)

If low/missing, check L276, C276-7, R276.

2. Synthesizer fault

Check that RF level at U201-32 is at least 150 mV (VHF) or -12 to -20 dBm (UHF).

If correct, check/replace U201. If incorrect, check R248 and C241.

Verify steering line voltage is between ~3V and 10V.

Check loop filter components R243-5 and C243-5.

Verify 4.5V dc at U201-28.

Check C231-233, etc., for shorts. If OK check/replace U201.

Verify 12.1V dc at U201-47

Check for 3V 1.05 MHz sq waves at U201-14 and 15. Check C218-228, D220-221.

Verify channel programming is correct.

Re-program if necessary.

3. DC voltage fault

4. Programming fault

HKLN4216A

Procedure

November 24, 2003

10-4

UHF Troubleshooting Tables: Troubleshooting Table for Transmitter

10.3 Troubleshooting Table for Transmitter Table 10-3. Troubleshooting Table for Transmitter Symptom No Transmit (no TX LED indication)

No Transmit (TX LED indication OK)

Low Power

Possible Causes

Corrective Action

1. PTT switch defective.

Verify U401-71 goes low when PTT is pressed.

2. EXT MIC PTT fault

Verify U401-72 goes low when J471- Check/replace Q470, L471 etc. 4 is grounded.

Replace PTT switch S441.

1. Synthesizer out of lock Refer to Table 10-2.

Refer to Table 10-2.

2. No TX_ENABLE

Verify U401-50 is high when pin 71 or 72 is low.

Check/replace U401.

3. TX DC switch fault

Verify Q171-C is 0V in TX.

Replace Q171.

Verify Q170-C is at Vbatt in TX.

Check for shorts, replace Q170.

4. Power control fault

Check Q150 and U150 dc voltages per schematic and Table 10-4.

Repair/replace defective components

5. No TX injection

Check that RF level at jct. R100/ R101 per schematic.

Check U251, L291-292, C290291.

6. No 5T source

Verify Q312 gate is 0V dc in TX

Check/replace Q313.

Verify Q312 drain is 5V dc in TX.

Check for shorts, check/replace Q312.

7. TX gain stage failure

Check RF levels at Q100 and U110 per schematic.

Troubleshoot Q100/U110 and associated circuitry.

8. Antenna switch failure

Verify dc voltage at jct. R122/L120 is approx 1.5V.

Check/replace D120-121, L120121, R120-122, etc.

1. Low TX injection

Check that RF level at jct. R100/ R101 per schematic.

Check U251, L291-292, C290291.

2. Low gain in TX stage

Verify dc voltage at Q100-E is ~1.3V (VHF) or ~0.5V (UHF).

Verify 5T voltage is correct. Troubleshoot Q100 circuitry.

Verify that RF level at U110-1 is approx. 1V (VHF) or 1.6V (UHF).

Troubleshoot Q100 circuitry. Check/replace Q100.

Verify that the dc voltage at PWR_SET (R162) is approx 1.8V dc (at 1 watt) to 2.6V dc (at 4-5 watts).

Check programming. Troubleshoot controller circuitry. Check/ replace U451.

Verify that the dc voltage at U110-2 is approx 2-3V dc (at 1 watt) to 3-4V dc (at 4-5 watts). (See schematic.)

Troubleshoot U150, Q150 and associated circuitry.

4. Antenna switch defect

Verify dc voltage at jct. R122/L120 (VHF) or R121/L120 (UHF) is approx 1.7V. Note: Do not attempt to measure RF or DC voltages at the diodes. Damage to test equipment may occur.

Check/replace D120-121, L120121, R120-122, etc.

5. Harmonic filter defect

Visually inspect components C130137, L130-132. Check dc continuity of L130-132 in RX mode only.

Repair/replace if necessary.

3. Incorrect control voltage

November 24, 2003

Procedure

HKLN4216A

UHF Troubleshooting Tables: Troubleshooting Table for Transmitter

10-5

Table 10-3. Troubleshooting Table for Transmitter (Continued) Symptom Poor TX range, conducted power OK

No internal mic audio (EXT MIC audio OK)

No EXT MIC audio

Possible Causes

Procedure

1. RF test jack defective

Verify continuity of J140 pins 3 and 4 in RX mode only.

Replace J140.

2. Antenna matching net- Visually inspect components C140work fault 141, L140 or L141. Check dc continuity of L140 or L141in RX mode only.

Repair/replace if necessary.

3. Defective or wrong antenna

Verify correct antenna is installed. Try another antenna.

Replace antenna.

1. Mic bias fault

Verify U451-35 is low when side PTT is pressed.

Check/replace U451.

Verify Q470-6 is high when side PTT button is pressed.

Check/replace R474, R476, and Q470.

2. Defective mic

Verify approx 1.8V dc across cartridge when side PTT button is pressed. Verify audio present (~10 mV rms) when speaking into mic.

Check mic connector and R478. Replace mic cartridge.

3. Defective mic jack

Verify continuity between J471 pins 4 and 5.

Replace J471.

1. Mic bias fault

Verify approx 1.8V dc across EXT MIC cartridge in TX mode. Verify audio present (~10 mV rms) when speaking into mic.

Check Q470. R475, R477, L471. Check VR473, VR475, D470 for shorts.

2. Audio path fault

Verify mic audio present (~10 mV rms) at U451-46.

Check L471, C470.

Verify amplified mic audio present (~200 mV rms) at U451-40.

Check/replace U451.

3. Defective audio acces- Try another accessory. sory

HKLN4216A

Corrective Action

Replace defective accessory.

November 24, 2003

10-6

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

10.4 Troubleshooting Table for Board and IC Signals Table 10-4. Troubleshooting Table for Board and IC Signals IC Designator

U51 IFIC

RF input 44.85 MHz

1.20

RF input decoupling

1.20

2nd LO osc output

4.02

2nd LO osc input

4.60

RSSI output

0.74

Vcc

4.70

Audio feedback

0.89

Audio output

1.44

DEMOD to stage U510

RSSI feedback

0.74

(no received signal)

Quad detector input

2.22

Limiter output

1.25

Limiter decoupling 2

1.30

Limiter decoupling 1

1.30

Limiter input

1.28

Ground

GND

IF amp output

1.22

IF amp decoupling 2

1.26

IF amp input

1.26

IF amp decoupling 1

1.26

2nd mixer output

3.09

Inverter 1 input

(25 kHz mode)

Inverter 2 output

(25 kHz mode)

Inverter 3 input (NU)

GND

Ground

GND

Inverter 3 output (NU)

4.96

Inverter 2 input

3.00

(25 kHz mode)

Inverter 1 output

4.95

(25 kHz mode)

Vcc

4.96

U52 BW Select Switch

November 24, 2003

Pin Function

DC Voltage

Comments (Condition)

(no received signal)

HKLN4216A

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

10-7

Table 10-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U110 RF Power Amp

RF input

Vgg (gate bias)

Vdd

RF output

Ground

Unit 1 output

4.20 (typ)

(TX mode) (5.8V typ at VHF)

Unit 1 (-) input

2.39 (typ)

(TX mode)

Unit 1 (+) input

2.39 (typ)

(TX mode)

Ground

Unit 2 (+) input

3.30 (typ)

(TX mode)

Unit 2 (-) input

3.35 (typ)

(TX mode)

Unit 2 output

2.23 (typ)

(TX mode)

Vcc

6.79

(TX mode)

AUX2 output (NU)

AUX3 output (TRB)

0.03

AUX4 output (NU)

Lock detect output

2.98

PD Vdd

2.98

Digital ground

GND

Serial data input

3.23

Serial clock input

Synth chip select

3.23

From U401-47

Modulation input

1.50

From U451-40

VMULT4 (NU)

2.98

VMULT3 (NU)

VRO

4.96

VMULT2

1.49

VMULT1

1.49

INDMULT (NU)

NC1

Ref select (NU)

Buffered 16.8 MHz out

1.54

Analog Vdd

3.00

V bypass (NU)

1.55

Analog ground

GND

Ref osc XTAL1

2.07

U150 Dual Opamp

U201 Freq Synthesizer

HKLN4216A

Pin Function

DC Voltage 0 2.65 (typ) 6.59 --

Comments (Condition) (TX mode) (TX mode) (4.25V typ at VHF) (TX mode) Do not measure

GND

To U251-19 (RX mode)

To U401-56

November 24, 2003

10-8

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 10-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U201 Freq Synthesizer

Ref osc XTAL2

Ref osc warp output

3.00

Superfilter cap

4.48

Superfilter base (NU)

3.76

Superfilter output

4.52

NC2

Superfilter input

NC3

Prescaler input

1.97

Prescaler ground

GND

Prescaler Vdd

2.99

Prescaler Vref (NU)

1.97

Digital Vdd

2.99

TEST1 (NU)

0.01

TEST2 (NU)

Bias 2

3.38 (typ)

(1.34V in TX mode)

Bias 1

1.50 (typ)

(3.20V in TX mode)

Modulation output

3.42 (typ)

(1.62V typ in TX mode)

CCOMP (NU)

Steering line IOUT

PD ground

Steering line IADAPT

Adapt switch (NU)

Voltage from charge pump

12.8

AUX1 output (NU)

2.98

TX VCO current adjust

4.50

RX VCO current adjust

4.35

Superfiltered input

4.51

Collector RF in amp

4.35

RX VCO base

1.27

RX VCO emitter

0.48

RX switch output (NU)

RX buffered VCO output

3.36

GND_FLAG

GND

TX buffered VCO output

3.36

GND_BUFFERS

GND

U251 VCO / Buffer

November 24, 2003

Pin Function

DC Voltage

Comments (Condition)

0 4.96 0

0.05 9.62 (typ)

Depends on frequency

GND 9.62 (typ)

Depends on frequency

HKLN4216A

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

10-9

Table 10-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U251 VCO / Buffer

Prescaler output

2.26

TX switch output (NU)

0.06

Vcc_BUFFERS

3.00

TX VCO emitter

(RX mode)

TX VCO base

(RX mode)

GND_LOGIC

GND

Vcc_LOGIC

3.00

TRB input

0.03

FLIP input

GND

Vin

7.48

Ground

GND

Control input

7.48

Bypass capacitor

1.26

Vout

4.96

Ground

GND

Feedback

1.23

Tap (NU)

Vin

7.48

Vout

3.23

Sense (NU)

Error (reset output)

3.20

Shutdown input

7.48

Vin

7.48

Ground

GND

Control input

7.48

Bypass capacitor

1.26

Vout

3.00

PD4_SCK serial clock input

PD5_SS

3.23

ASFIC chip select

PD6_VLIN

3.23

EEPROM chip select

PG7_R_W

3.21

PG6_AS

3.23

PG0_XA13

3.23

PB7_ADDR15

0.026

PB6_ADDR14

0.028

PB3_ADDR11

3.06

U310 5V Regulator

U320 3.3V Regulator

U330 3V Regulator

U401 Microprocessor

HKLN4216A

Pin Function

DC Voltage

Comments (Condition)

From U201-2 (RX mode)

November 24, 2003

10-10

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 10-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U401 Microprocessor

PB1_ADDR9

3.05

PB2_ADDR10

0.16

VDD

3.23

VSS

GND

PBO_ADDR8

3.05

PB5_ADDR13

0.13

PG1_XA14

0.20

PG4_XA17

3.17

PG5_XA18

PG3_XA16

3.21

PG2_XA15

0.30

PB4_ADDR12

0.22

PF7_ADDR7

3.03

PF6_ADDR6

3.08

PF5_ADDR5

3.06

PF4_ADDR4

0.16

PF3_ADDR3

0.26

PF2_ADDR2

3.06

PF1_ADDR1

3.06

PFO_ADDR0

3.05

PC0_DATA0

0.69

PC1_DATA1

0.96

PC2_DATA2

1.10

PC3_DATA3

0.81

PC4_DATA4

0.62

PC5_DATA5

0.68

PC6_DATA6

0.67

PC7_DATA7

0.73

PH7_CSPROG

3.05

VDDL

3.23

VSSL

GND

PH6_CSGP2

3.23

PH5_CSGP1

3.23

PH4_CSIO

PH3_PW4

3.21

PH2_PW3

November 24, 2003

Pin Function

DC Voltage

Comments (Condition)

On/off control output

HKLN4216A

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

10-11

Table 10-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U401 Microprocessor

PH1_PW2

3.00

PH0_PW1

3.23

XIRQ

3.00

PI7

1.48

RX enable

PI6

0.01

TX enable

PI5

3.23

PI4

Green LED enable

PI3

Red LED enable

PI2

PI1

PI0

2.98

Lock detect from U201-4

MODB_VSTBY

3.22

Boot mode enable

MODA_LIR

3.12

AVDD

3.23

PE7_AN7

3.20

PE6_AN6

3.20

PE5_AN5

2.91

VOX threshold detect

PE4_AN4

0.73

RSSI input

PE3_AN3

0.14

PE2_AN2

1.62

PE1_AN1

0 - 3.3 V

PE0_AN0

2.48

VRL

VRH

3.20

AVSS

GND

PJ0_CSGP3

3.23

PJ1_CSGP4

PJ2

3.23

PJ3

3.23

PJ4

3.23

PJ5

PJ6

3.23

Bottom option button

PJ7

3.23

Top option button

PA0_IC3

PA1_IC2

1.57

PA2_IC1

3.00

HKLN4216A

Pin Function

DC Voltage

Comments (Condition)

Synth chip select

Volume control wiper 33% of battery voltage

Side PTT button External MIC PTT

November 24, 2003

10-12

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 10-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U401 Microprocessor

PA3_IC4_OC5_OC1

PA4_OC4_OC1

Squelch detect input

PA5_OC3_OC1

Channel activity input

PA6_OC2_OC1

PA7_PA1_OC1

VSSR

GND

VDDR

3.23

ECLK (NU)

1.60

EXTAL

1.70

Clock from U451-28

XTAL

1.40

Not used

VDDSYN

XFC (NU)

RESET

3.20

LVOUT

IRQ

3.20

PD0_RXD

3.23

PD1_TXD

1.9

PD2_MISO

100

PD3_MOSI

3.23

Chip select

3.23

Serial data out

Write protect

3.23

Vss

GND

Serial data in

3.23

Serial clock

Hold

3.23

Vcc

3.23

A11

3.06

3.08

3.05

A13

0.13

A14

0.31

3.17

EN_WE

3.21

Vcc

3.23

RESET

3.20

U402 EEPROM

U404 Flash ROM

November 24, 2003

Pin Function

DC Voltage

Comments (Condition)

3.00

From U320

From U401-3

From U401-4

HKLN4216A

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

10-13

Table 10-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U404 Flash ROM

A16

3.17

A15

0.30

A12

0.22

3.03

3.08

3.06

0.24

3.08

3.05

0.69

0.94

1.08

GND

0.78

0.59

0.66

0.67

0.75

EN_CE

3.01

A10

0.16

EN_OE

VDD for analog circuits

3.00

DISC audio input

1.34

Ground for analog circuits

GND

DACU output

DACR output

DACG output

2.38 (typ)

VOX peak detector output

2.91

PLCAP for DC integrator

0.40

SQIN

0.01

Universal audio input/output

VDD for DACs

SQCAP

GCB2 general purpose output

U451 ASFIC_CMP

HKLN4216A

Pin Function

DC Voltage

Comments (Condition)

From U401-38

From U401-86

From U510

Power set (TX mode)

0 4.95

Audio PA_EN (unsquelched)

November 24, 2003

10-14

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Table 10-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U451 ASFIC_CMP

GCB1 general purpose output

GCB0 general purpose output

3.00

Squelch channel activity output

To U401-84

Squelch detect digital output

To U401-83

PL/low speed data I/O

1.50

High speed data I/O

3.00

Chip select

3.23

Serial clock input

Serial data input

3.23

Ground for clock synthesizer

GND

Loop filter cap for clock syn

0.74

PLCAP2 for LS integrator

1.17

Not used

Vdd for clock synthesizer

3.00

Clock synthesizer output

1.70

1200 Hz ref for MDC decode

3.00

GNDDO

GND

Ground for digital circuits

GND

Vdd for analog switches

4.96

Vdd for digital circuits

3.00

16.8 MHz master clock input

1.54

GCB3 general purpose output

3.00

TX audio return from option

GCB4 general purpose output

GCB5 general purpose output

RX audio send to option

1.48

Modulation output

1.50

RX audio out to power amp

1.51

Flat TX audio return from option

0.20

RX audio return to option

1.50

Flat TX audio send to option

1.50

Vdd for audio path I/O filters

3.00

Mic audio input

1.50

Ground for audio path I/O filters

GND

Ext mic audio input (not used)

November 24, 2003

Pin Function

DC Voltage

Comments (Condition)

BW select (25 kHz mode)

From U401-2

Internal MIC enable

To U201-10

HKLN4216A

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

10-15

Table 10-4. Troubleshooting Table for Board and IC Signals (Continued) IC Designator

U480 Dual Opamp

Unit 1 output

2.48

Unit 1 (-) input

2.48

Unit 1 (+) input

2.46

Ground

GND

Unit 2 (+) input

0.28

Unit 2 (-) input

0.29

Unit 2 output

Vcc

4.96

Enable/shutdown

0.12

(Unsquelched)

Bias reference

3.26

(Unsquelched)

(+) input

3.26

(Unsquelched)

(-) input

3.27

(Unsquelched)

(-) output

3.25

(Unsquelched)

Vcc

7.48

(Unsquelched)

Ground

GND

(+) output

3.29

Unit 1 output

1.75

Unit 1 (-) input

1.56

Unit 1 (+) input

1.55

Ground

GND

Unit 2 (+) input

1.55

Unit 2 (-) input

1.56

Unit 2 output

1.38

Vcc

4.96

U490 Audio Power Amp

U510 Dual Opamp

Pin Function

DC Voltage

Comments (Condition)

(Unsquelched)

1. All voltages are measured with a high-impedance digital voltmeter and expressed in volts DC relative to ground (0V). 2. Voltages are measured with a DC input voltage of 7.50 + .02 volts DC applied to the battery connector (J301). 3. All voltages are measured in the squelched receive mode, unless otherwise indicated. 4. Voltages are identical for VHF and UHF models unless otherwise indicated.

HKLN4216A

November 24, 2003

10-16

UHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals

Notes:

November 24, 2003

HKLN4216A

Chapter 11 UHF Schematic Diagrams, Overlays, and Parts Lists

11.1 Introduction This section provides schematic diagrams, overlays, and parts lists for the radio circuit boards and interface connections.

11.1.1 Notes For All Schematics and Circuit Boards * Component is frequency sensitive. Refer to the Electrical Parts List for value and usage. 1. Unless otherwise stated, resistance values are in ohms (K = 1000), capacitance values are in picofarads (pF) or microfarads (ÂľF), and inductance values are in nanohenries (nH) or microhenries (ÂľH). 2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. If the board has been removed from the chassis, the transmitter module mounting screws may be used for ground connection. (Note: The antenna nut bracket is not connected to ground.) Operating mode dependent voltages are followed by (RX) for receive mode, (TX) for transmit mode, (UNSQ) for unsquelched mode, etc. 3. RF voltages on VHF models are measured with a Fluke model 85 RF probe. The indicated voltages expressed in mV (RF) are DC level readings which correspond approximately 1:1 to the RF voltage level in mV rms. RF voltages in the Receiver Front End and Receiver Back End circuits are measured with an on-channel 100 mV (-7 dBm) RF signal applied to the antenna jack J140. 4. RF voltages on UHF models are measured both with a high-impedance RF voltmeter having a bandwidth in excess of 500 MHz (levels are expressed in dBm) and with a Fluke model 85 RF probe [levels are expressed in mV (RF)]. These indicated voltages are DC level readings which correspond approximately 1:1 to the RF voltage level in mV rms, and are only approximate for UHF frequency measurements. RF voltages in the Receiver Front End and Receiver Back End circuits are measured with an on-channel 100 mV (-7 dBm) RF signal applied to the antenna jack J140. 5. Audio voltages are measured with a high-impedance AC rms voltmeter. The indicated voltages are expressed in mV rms. Receive mode voltages are followed by (RX) and are measured with an on-channel signal with 1 kHz modulation at 60% deviation (3 kHz for 25 kHz channels, or 1.5 kHz for 12.5 kHz channels). Transmit mode voltages are followed by (TX) and are measured with a 1 kHz, 10 mV rms signal present at the external microphone input (accessory connector J471 pin 4 hot and pin 7 ground). 6. Reference Designators are assigned in the following manner: Ref. No. Series

Circuit Block

1-99

RF Front End

100-149

Transmitter RF Stages

150-200

Transmitter Power Control

201-250

Frequency Synthesizer

251-300

VCO

11-2

UHF Schematic Diagrams, Overlays, and Parts Lists: Introduction

Ref. No. Series

Circuit Block

301-400

DC Regulation

401-450

Microprocessor

451-550

Audio

7. Circuit Block Interconnection Legend: Name

November 24, 2003

Description

USWB+

Unswitched Battery Voltage (always on)

5 volts (regulated)

5 volts in RX mode only

5 volts in TX mode only

RESET

Low-line reset signal from U320 to uP

D3_3V

Digital 3.3 volts (regulated)

Analog 3 volts (regulated)

TX_ENA

Transmit enable signal from uP to transmitter

PWR_SET

DC voltage from ASFIC to TX power control

DEMOD

RX audio from backend to ASFIC

BW_SEL

Backend filter BW select from ASFIC

RSSI

RX signal strength indication from IFIC to uP

IF_IN/OUT

44.85 MHz from 1st mixer to high IF filter

RF_IN/OUT

RX signal from antenna switch to front end

MOD OUT/IN

TX modulation from ASFIC to synthesizer

16_8_MHZ

Ref osc signal from synthesizer to ASFIC

SYNTH_CS

Synthesizer chip select from uP

SPI_CLK

Serial clock from uP

SPI_DATA_OUT

Serial data from uP

LOCK

Lock detect indication from synth to uP

PRESC

VCO freq feedback from VCOBIC to synth

V_STEER

Steering line voltage from synth to VCO's

V_SF

Super-filtered 4.5 volts from synth to VCOBIC

VCO_MOD

TX modulation from ASFIC to synthesizer

TRB

TX/RX control from synth to VCOBIC

RX_INJ

Buffered RX VCO output to RX 1st mixer

TX_INJ

TX VCO output to transmitter input

HKLN4216A

UHF Schematic Diagrams, Overlays, and Parts Lists: Speaker and Microphone Schematic

11-3

11.1.2 Six Layer Circuit Board SIDE 1

LAYER 1 (L1) LAYER 2 (L2) LAYER 3 (L3) LAYER 4 (L4) LAYER 5 (L5) LAYER 6 (L6)

INNER LAYERS

SIDE 2

Figure 11-1. Six-Layer Circuit Board: Copper Steps in Layer Sequence

11.2 Speaker and Microphone Schematic MK1 1 MATES WITH J470 ON RADIO BOARD 2

SP1 1

MATES WITH J491 ON RADIO BOARD

Figure 11-2. Speaker and Microphone Schematic

11.2.1 Speaker and Microphone Parts List Reference Designator

HKLN4216A

Motorola Part No.

Description

MK1

5085880L01

Microphone, electret

SP1

5085738Z08

Speaker assembly with connector

November 24, 2003

11-4

UHF Schematic Diagrams, Overlays, and Parts Lists: Speaker and Microphone Schematic

Notes:

November 24, 2003

HKLN4216A

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

11-5

Chapter 11 UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

UHF R1

USWB +

3V USWB+

3V 5V

USWB

USWB+ 5V

TX_EN A

TX_ENA

PWR_SET

TX_UHF_R1 PWR_SET

CONTROLLER

DEMOD

BW_SEL

RX_BE

RX_FE_UHF_R1 IF_IN

IF_OUT

RX_IN

TX_INJ

RSSI

RX_OUT

RX_INJ

5V MOD_OUT

MOD_IN

16_8_MHZ

PRESC

SYNTH_UHF_R1 SYNTH_CS SPI_CLK SPI_DATA_OUT LOCK

PRESC

VCO_UHF_R1 V_STEER

RX_INJ

V_STEER

SYNTH_CS SPI_CLK SPI_DATA_OUT LOCK

V_SF VCO_MOD

V_SF VCO_MOD TX_INJ

TRB

Figure 11-3. UHF (403-440 MHz) Radio Circuit Block Diagram HKLN4216A

November 24, 2003

11-6

UHF 403-440 MHz Schematic Diagrams, Overlays, and Parts Lists

Chapter 11 UHF 403-440 MHz Schematic Diagrams, Overlays, and Parts Lists 5R FE_5R

Q22

C26

R21 75

R20 5.6K

390pF

UMT1

UHF R1 Front End

1 2

SH1 SHIELD

C20

C25 6

390pF

R22 5.6K

C523 0.55pF

C3 1.8pF

5.6%

C6 1.8pF

RX_IN C1

18pF 1%

L1 9.85nH 2%

15pF 1%

5.6% L2 9.85nH 2%

C12 10pF 1.0%

L3 9.85nH 2%

C28 C27 9.1pF 1.1%

15pF 1%

L31 9.85nH 2%

C32 7.5pF 1.3%

C31 9.1pF 1.1% C30 22pF 1%

C46

C23

R24

390pF

1.2K

L32 9.85nH 2%

Q21

R25 5.6K

L52

3.3pF 3.0%

C522

10% L21 27nH

13pF 1%

C35 C47

18pF 1%

0.79V

C521 4.2V

FE_IF_OUT IF_OUT

680nH

2.2pF 4.5%

R51 51

BFS505 C51

L51 150nH

82pF

0.6pF

C34 6.2pF 1.6% C33

C21 390pF

C10 2

C11 20pF

C524 C29 8.2pF 1.2%

C9 18pF

CR1

L55 18nH

0.1uF

5.5%

IF1

390pF

C99

R23 27K

SH40 SHIELD

C37 6.2pF 1.6%

1% 12pF C36 L33 9.85nH 16pF 2% 1%

C38

T41 RF BALUN C48

1% 0 16pF C39 L34 12pF 9.85nH 1% 2%

C13

3 C14 2.4pF

C49

5 NC

2.4pF 4.2%

4.2% 1 IO1

T42 IF BALUN 3

4 FE_RF_INJ

C42

L40

10pF 1.0%

27nH

RX_INJ C41 15pF 1%

L41 27nH C43 30pF 1%

IO3

IO4

IO2

2 C44 10pF 1.0%

6 C45 22pF 1%

R40 1K

1 NC

5 NC

CR41 HSMS2829

1 TP1

TP2

Figure 11-4. UHF (403-440 MHz) PCB 8486635Z03-O Receiver Front End Schematic Diagram November 24, 2003

HKLN4216A

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

11-7

RX Back End (Overtone)

C68

U52-1 TC7W04F

FL53 CFWC455E

R65 39K

0.1uF

R66 20K

OUT 2

0V for 12.5kHz

C69 R63 39K

D51

0.1uF

1 IN

SH50 SHIELD

8 U52-4 PWR_GND

SH52 SHIELD

GND

3 2

C74

R62 3.3K

VCC

OUT 2

R67 20K GND1

U52-3 TC7W04F

D52

R64 20K

FL54 CFWC455G

R60 2.4K

1 IN

4 C63

C62

FL52 FLTR 9180468V04

0.1uF

OU T 2 C64 GND

C66

C65

0.1uF

47pF

C67

C61

0.1uF

R72 390

0.1uF

Q70

C91

0.1uF

10uF

1 RFIN 2 RFIN_DEC

51 C90

C92 0.1uF

R53

FL51 MXF45 44.85MHz

0.1uF

R54 5.1K

OUT 6

3 IN C52 18pF C53 9.1pF 1.1%

0.74V 120pF C93

GND2

2 CC1 5 CC2

GND1

IF_IN

3.6pF NU

C57

3.9pF C59

0.1uF

2.7pF

L53

IF_IN

C58

3.05V

33K C55

R52 12K

Q51

CR51

L54 1.2uH 2%

SA616

LIMOUT 11 GND

C70

R73 1.8K

130pF

R74 1.2K Y70 45B02 455KHz 1

R57 4.7K

2 3

C81

C80

R80 5.1K

33pF 1%

PBR941 1

U51

C71 0.1uF

C60 0.1uF

VCC

9 RSSI_FEED

10 QUADIN

R90

LIMIN 14 LIM_DEC1 13 LIM_DEC2 12

5 RSSIOUT

R55 330

0.1uF

7 AUDIO_FEED 8 AUDIOOU T

C56

IFAMP_DEC1 IFAMPI N IFAMP_DEC2 IFAMPOUT

1.6K

3 OSCOUT 4 OSCIN

3.39V

19 18 17 16

MMBT3904

R91

MIXOUT 20

IF_5V

47pF

GND2

BW_SE L

TC7W04F

5V for 25kHz

GND2

U52-2

R61 100K IF_BAND_SEL

GND1

R75

IF_RSSI

2.1V When -47 dBm @ antenna

RSSI

22pF 1%

C72

12K

0.1uF

4 R81 1K C82

Y51 TSS2_44_395MHZ 44.395MHz 3 OU T

L81 1uH

33pF 1%

R82 NU

GND1 GND 4

1 R76 12K 1%

R77

R78

8.2K 1%

680

IF_DEMOD 1.5V

DEMOD

C73 4700pF

Figure 11-5. UHF (403-440 MHz) Receiver Back End Schematic Diagram

HKLN4216A

November 24, 2003

11-8

UHF 403-440 MHz Schematic Diagrams, Overlays, and Parts Lists

UHF R1 Synthesizer FN_V_SF

4.5V

R247 22K

C231

C232

C233

1000pF

0.1uF

4.7uF

SH200 SHIELD LOCK: 3V UNLOCK: 0V

NC NC NC

31 NC3 29 NC2 17 NC1

NC NC

42 18

32 PREI N 27 SFBASE 26 SFCAP

PRESC 100pF

C240 1.3pF

39 40

C230 2.2uF

NC NC

21 35 30 7 10

FN_DATA SPI_DATA_OUT

CCOMP REFSEL

FN_SYNTH_CS

FN_CLK

LOCK C204 25 16 28 46 4 45 43

470pF

NC NC

TX: 3V FN_TRB

C243

R245 3.2V to 4.5V FN_V_STEER V_STEER 1.5K C244

R243 820

0.1uF

RX: 0V

.01uF 0888600M25

TRB

NC NC

R244 51

NC NC

1 FN_VCO_MOD

MODOUT 41 19 FREFOUT XTAL2 24 XTAL1 23

5 34 20 36 13 47

SYNTH_CS

SH201 SHIELD

FN_LOCK

TEST2 38 TEST1 37 U201 3 BIAS2 63A27 AUX4 2 BIAS1 AUX3 AUX2 1 VBPASS AUX1 48 PVREF VMULT4 11 VMULT3 12 SFIN VMULT2 14 DATA MODIN VMULT1 15

9 CEX 8 CLK

FN_MOD MOD_IN

WARP INDMULT SFOUT ADAPTSW LOCK IADAPT IOUT

PD_VDD PRE_VDD AVDD DVDD VRO VCP

C241

FN_PRESC

DGND AGND PRE_GND PD_GND

6 22 33 44

R230 24K

V_SF

TP240

C245 VCO_MOD 1uF

C202

C201

62pF 1%

220pF

TP200 1

R220 22

R205 100

R246

16_8_MHZ

5V R202 150K

SPI_CLK

C220

FN_16_8

100K

R221 22

22pF

C205

C221

NU C208

C209

C210

C211

470pF 470pF

470pF

0.1uF

FN_3V 3V

C201

220pF

C202

62pF

C203

2.7pF

C206

0.01uF

R202

150k

47k

R206

100

D201

1SV232

Y201

14R06

Y202

45J68

C212

C213

C214

Y201 14R06

2.2uF

.01uF

1000pF

16.8MHz 3 OUT GND1

TCXO

R206

390nH

Reference Oscillator Crystal

C206 L211

Y202 45J68 NU

4 VCC

IN GND

C207

.01uF 3 K3 2 K2 1 K1

C222

1 3 OUT VCON 16.8MHz GND 2

.01uF

4 A3 5 A2 6 A1 D220

C223

R223 100 C218

C219

2.2uF

0.1uF

.01uF

C224 C203

NC A3 4 A2 5 A1 6

NC 3 K3 2 K2 1 K1

.01uF

D201 2.7pF 3.7%

D221

R227 39K

C228

C227

C226

C225

0.1uF

1000pF

10uF

5V FN_5V

R212

5V 0 C215

C216

C217

2.2uF

0.1uF

1000pF

Figure 11-6. UHF (403-440 MHz) PCB 8486635Z03-O Synthesizer Schematic Diagram November 24, 2003

HKLN4216A

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

11-9

UHF R1 VCO

V_SF VCO_VSF V_SF

R273

L270

4.5V

220nH C270 390pF SH250 SHIELD

SH251 SHIELD

L272 220nH

SH253 SHIELD

330

C274 VCO_3V

R277

0.1uF

C273

1 C271

R274 33

390pF

27nH D251

C254 7.5pF 1.3%

VCO_V_STEER L251 V_STEER 220nH 3.2V to 9.5V C251 150pF 0888600M03

1.8% L254 12.5nH 2%

C256 3.6pF 2.8%

TX_IADJ RX_IADJ SUPER_FLTR COLL_RFIN RX_BASE RX_EMITTER TX_BASE TX_EMITTER FLIP_IN TRB_IN

33 R254 100

10pF 1.0% L255 220nH

L262

390pF

0.1uF

L282 15nH

5pF 2%

C264 3.3pF 3.0%

D261

C290

7 RX_SWITCH TX_SWITCH 13 PRESC_OU T

V_SF

TX_INJ L291 6.8nH NC NC

0.5pF 20%

VCO_5R 5R

U251

R261

C267

22K

6.8pF 1.5%

VCO_MOD D262 1SV229

RX: 0V

13pF

L281 33nH

4 50U5

C284

R281 8.2K

390pF

C281

R282

390pF

910 1

C282 VCO_RX_INJ RX_INJ

C266

R262 6.8K

C291

C286

R285

8.2pF

L283 NU 3.3pF 3.0%

VCO_TX_INJ

6.8pF

3.0%

L264 12.5nH 2% C268

L292 15nH

R284 330

TX_OUT 10 RX_OUT 8

C265 3.3pF

C263

27nH

VCO_MOD

R253

C257

C252

R272 5.6K 1 2 3 4 5 6 16 15 20 19

C255 5.6pF

C253 6.2pF 1.6%

L271 NU

R271 4.7K

9 GND_FLAG 11 GND_BUFFERS 17 GND_LOGIC

L252

.01uF

14 VCC_BUFFERS 18 VCC_LOGIC

C285

C272 0.1uF

C292

Q280

2 R280 4.7K

3.6pF BFS540

R283 130

C283 390pF

V_SF R263

R276

L276

27nH

VCO_PRESC PRESC

C276

R264 100

3.9pF L265 220nH

TX: 3V VCO_TRB

R275

TRB 100

C275 390pF

Figure 11-7. UHF (403-440 MHz) Voltage Controlled Oscillator Schematic Diagram HKLN4216A

November 24, 2003

11-10

UHF 403-440 MHz Schematic Diagrams, Overlays, and Parts Lists

UHF R1 Tx

PA_USWB+ USWB+

Q171

PA_TX_ENA TX_ENA

C170 4

390pF

Q170 EMB10

C525 390pF C157

C154

0.1uF

390pF

R120 150

R152

R158

R159

C151

5.1K

390pF

U150-2

C156

Q150

LM2904

.01uF R157

2.2K

U150-1

C159

LM2904 PA_PWR_SET

C152

R156 330

390pF

C153

C121

57R01 R154

R151

100K 1%

5 8

TP150

U151

390pF

R121 150

100K 1%

R153 100K 1% C150

C172

R155 100K 1%

L120 220nH

390pF

R150 0.1 J140

0.47uF

C137

4 S1

220pF

R162

3 S2

PWR_SET 10K

2 G1 5 G2

C158 390pF

C113 390pF

PA_5T

R110 510

SH100 SHIELD

C109

C114

0.1uF

390pF

R106 4.7K

R107 NU

L100 220nH

390pF

C112

R111 1.8K

220nH C171

L101 220nH

390pF

C102

0.1uF

390pF

30nH

PA_TX_INJ

R101

C100

TX_IN J 5.6 R100 820

390pF R102 820

R105 2.7K L102 8.7nH C104 10pF

BFG540W

390pF

L130

C105

C107

1pF

3pF

390pF

VG G

VDD

RFIN

U110

RFOUT RA07M4047M_UHF GND

Q100

1uF

3.9V MM3Z3V9T1 4813830A86

C106

L103

0.1uF

L140

0.1uF

1 T1 6 T2

VR110

1 C103

C116

L110

5T C111

C115

C117 4 390pF

D120 MA4PH261

L131

22.69nH C132

27.42nH C134

22.69nH C136

10pF

8.2pF

4.3pF

C124

L121

C122

D121 BAR63-02W 4880973Z02

NC C141 NU

M140 ANTENNA_NUT 1 TAB1 TAB3 3 2 TAB2 TAB4 4

NC NC

L141 22.69nH

PA_RX_OU T RX_OUT

18nH 9.1pF

L132

C123

220pF

5.6pF

4 R103 3K

C120

NU R104 18

C101

C108

0.1uF

390pF

Figure 11-8. UHF (403-440 MHz) PCB 8486635Z03-O Transmitter and Power Control Schematic Diagram November 24, 2003

HKLN4216A

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

11-11

5V +3 V

SW_B +

SW_B

Controller

VS_AUDIO_SEL CNTL_PWR_SET OPT_MI C

PWR_SET

OPT_TX_AUD_FLAT_RETURN OPT_TX_AUD_RETURN

SW_B +

OPT_RX_AUD_SEND_UNMUTED

OPT_RX_AUD_RETURN

VS_GAIN_SEL

C500

1000pF

4 C503 1000pF

BATT_CHARGE

RESET

SC I

uP_CL K

ASFIC_CS

F1200

BOOT_ENA

EXT_MIC_PTT

16_8_MHZ

C501

CNTL_SPI_CLK

1uF

SPI_CLK CNTL_SPI_DATA_OUT SPI_DATA_OUT

R502 100

R504

100

CNTL_SYNTH_CS SYNTH_CS

R501 100

CNTL_LOCK LOCK

J460-1 CONNECTOR ACCESSORY/KEYPA D

CNTL_RSSI

R505 TP40 3

100

C406

RSSI CNTL_TX_ENA TX_ENA

TP40 4

150pF

SW_B

USWB BATT_DETECT

SCI

RESET

uP_CLK

ASFIC_CS

F120 0

BOOT_ENA

EXT_MIC_PTT

LSIO

HSIO

VOX

CH_ACT

SQ_DET

SPI_DATA_IN

D3_3V

DISPL_COM_DATA_SEL VS_RAC OPT_DATA_READY

SPI_CLK

SW_B +

SPI_DATA_OUT

D3_3 V

SW_B +

1000pF

R503 10 0

C50 4

C403 150pF

BK1005HM47

HSIO

LSI O

E500 1

VOX

MOD_OUT

16_8_MHZ

SQ_DET

BW_SEL

CNTL_MOD_OU T MOD_OUT CNTL_16_8_MHZ

CH_ACT

SPI_DATA_OUT

19 17

SPI_CLK

20 18

C405 150pF

D3_3 V

BW_SEL

AUDI O

OPT_RX_AUD_SEND_DETECTO R

DEMOD CNTL_BW_SEL

OPT_TX_AUD_SEND 28

PWR_SET CNTL_DEMOD

DEMO D

3V D3_3V CNTL_USWB+ USWB+ CNTL_5V 5V

TP301 CNTL_5R

5R CNTL_5T

BACKLIGHT

KEYPAD_ROW

CNTL_3V

SYNTH_C S

KEYPAD_COL

1000pF

1000pF C404

1000pF C407

C409

1000pF

C408

1000pF

1000pF C507

1000pF C40 2

1000pF C506

C505

S441 SWITCH 1 A1 3 A2

B1 2

OPT_BUTTON_ 2 FREQ_SEL_ 3

B1 2 B2 4

S440 SWITCH 8

PC0 PC1 PC2 C0 C1 9 7

PC3

GND1 GND

1 A1 3 A2

TX_EN A

BATT_CHARGE

D3_3V

RESET

RX_ENA

RX_EN A

VOLUME

ON_OFF

ON_OF F

OPT_BUTTON_ 1

B1 2 B2 4

S443 SWITCH

RSSI

PTT

B2 4

S442 SWITCH 1 A1 3 A2

MICROPROCESSOR

SWB+

OPT_EN A VS_CS VS_IN T

LOCK USWB +

DISP_EN A

1 2 4 C0 C1

FREQ_SEL_ 0

DC_REGULATION

TX_EN A

FREQ_SEL_ 1 FREQ_SEL_ 2

Figure 11-9. UHF (403-440 MHz) Controller Interconnect Schematic Diagram HKLN4216A

November 24, 2003

11-12

UHF 403-440 MHz Schematic Diagrams, Overlays, and Parts Lists

Microprocessor D3_3 V

D3_3V R416 20K

R410 10K

D3_3V C410

C411

C412

10uF

0.1uF

1000pF

C413 R412 100K

0.1uF

8 6 1 3 7 5

TP405

VCC SCK CS 2 WP SO HOLD SI VSS 4

TP402

C418

R417 10K

0.1uF

Q410

1 1

R411

SC I 820

SH401 SHIELD

SH400 SHIELD

C419

1000pF

U402

R419 4.7K

X25128-2.7 EEPROM 1

TP401 LSI O CH_ACT

SPI_DATA_IN

SQ_DET

SPI_DATA_OUT

HSI O OPT_DATA_READY

SPI_CLK

uP_CLK C400

R400 NU

D3_3 V

R418

NU 100K

C414

C417 C415

DISPL_COM_DATA_SEL

C416

0.1uF 1000p F 1000pF

R445 4.7K

2 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)

ON_OFF

30 31 32 33 34 35 36 37

PC0_DATA0 PC1_DATA1 PC2_DATA2 PC3_DATA3 PC4_DATA4 PC5_DATA5 PC6_DATA6 PC7_DATA7

A(18:0) C430

C431

0.1uF

1000pF

D3_3V

R433 100K

21 22 23 25 26 27 28 29

D0 D1 U404 A0 D2 FLASH A1 D3 A2 A3 D4 A4 D5 A5 D6 A6 D7 A7 6 A8 NC A9 A10 A11 A12 A13 A14 A15 A16 GND

R431 NU

20 19 18 17 16 15 14 13 3 2 31 1 12 4 5 11 10

C432

C433

0.1uF

1000pF

VDD VDDR VDDL AVDD

LVOUT 95

VRL 68 VRH 69

EXTAL 90 XTAL 91

86 85 84 83 82 81 80 79

12 88 39 59

PTT EXT_MIC_PTT FREQ_SEL_0 FREQ_SEL_1 VS_RAC

FREQ_SEL_2 FREQ_SEL_3 OPT_BUTTON_1 OPT_BUTTON_2

5V 1

A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7) A(8) A(9) A(10) A(11) A(12) A(13) A(14) A(15) A(16)

R430 100K D(0) 11 D(1) 12 D(2) 13 D(3) 15 D(4) 16 D(5) 17 D(6) 18 D(7) 19

VDD A0 A1 U403 A2 A3 NU A4 SRAM A5 A6 D1 A7 D2 A8 D3 A9 D4 A10 D5 D6 A11 D7 A12 A13 D8 A14

A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7) A(8) A(9) A(10) A(11) A(12) A(13) A(14)

C445

C440

C441

C442

C443

C444

C401

.01uF

0.1uF

R440 4.7K

.01uF

200K 1% R421 100K 1%

C422

D424 3V

.01uF

RED LED

D440 BRPY1204W

20 CS 22 OE 27 WE VSS 14

A(18)

0.1uF

VOLUME

R442 220

SW_B+ C447

R441 4.7K

Q440-2

C420

Q440-1 5

10 9 8 7 6 5 4 3 25 24 21 23 2 26 1

C446

SW_B +

A(17) R434

PE0_AN0 PE1_AN1 PE2_AN2 PE3_AN3 PE4_AN4 PE5_AN5 PE6_AN6 PE7_AN7

67 66 65 64 63 62 61 60

BOOT_ENA

R420

24 R432

NC NC

71 72 73 74 75 76 77 78

D414

D3_3V

8 VCC 30 EN_CE 32 EN_OE 7 EN_WE RESET 9

AT49LV001N_70VI

D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)

U401 MC68HC11FL0

A(7) A(6) A(5) A(4) A(3) A(2) A(1) A(0)

D(7:0) D3_3 V

VDDSYN 92 XFC 93

PH0_PW 1 PH1_PW 2 PH2_PW 3 PH3_PW 4 PH4_CSI O PH5_CSGP1 PH6_CSGP2 PH7_CSPROG

22 23 24 25 26 27 28 29

DISP_ENA

47 46 45 44 43 42 41 38

PJ0_CSGP3 PJ1_CSGP4 PJ2 PJ3 PJ4 PJ5 PJ6 PJ7

VSS VSSR VSSL AVSS

RESET

89 96 NC 48 94 4 58 57

13 87 40 70

Q402 3

ECLK IRQ XIRQ RESET PG7_R_W MODA_LIR MODB_VSTBY

PI 7 PI6 PI5 PI4 PI 3 PI 2 PI1 PI0

R446 10K

49 50 51 52 53 54 55 56

PG0_XA13 PG1_XA14 PG2_XA15 PG3_XA16 PG4_XA17 PG5_XA18 PG6_AS

PB5_ADDR13 PB4_ADDR12 PB3_ADDR11 PB2_ADDR10 PB1_ADDR9 PBO_ADDR8

Q403

6 16 20 19 17 18 5

1000pF

NC NC

A(13)15 A(12) 21 A(11) 9 A(10) 11 A(9) 10 A(8) 14

BACKLIGH T

PA7_PA1_OC1 PA6_OC2_OC1 PA5_OC3_OC1 PA4_OC4_OC1 PA3_IC4_OC5_OC1 PA2_IC1 PA1_IC2 PA0_IC3

SW_B + 3

PF7_ADDR7 PF6_ADDR6 PF5_ADDR5 PF4_ADDR4 PF3_ADDR3 PF2_ADDR2 PF1_ADDR1 PFO_ADDR0

NC A(14) A(15) A(16) A(17) A(18)

R414 33K

R415 33K

F1200

7 PB7_ADDR15 8 PB6_ADDR14

SYNTH_CS

PD6_LVIN 3 PD5_SS 2 PD4_SCK 1 PD3_MOSI 100 PD2_MISO 99 PD1_TXD 98 PD0_RXD 97

NC ASFIC_CS

R413 100K

R443 120

RB520S-30 R424

D3_3V

200K 1%

GREEN LED

C421 R422 100K

R423 100K

.01uF

BATT_DETECT

R425 100K 1%

RSSI VO X KEYPAD_CO L KEYPAD_RO W LOCK VS_INT VS_CS OPT_ENA TX_ENA RX_ENA

Figure 11-10. UHF (403-440 MHz) PCB 8486635Z03-O Microprocessor Circuitry Schematic Diagram November 24, 2003

HKLN4216A

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

11-13

R516

R523

C512

10K

C514

6.8pF

R522

16pF

100K

R514

R512 150K

LM2904 R511

100K

DEMOD

Q520 8 1

R513

R515

C460

0.1uF

VR471

C511

C513

R518 220K

220pF

R519 100K

C519

R470

OPT_RX_AUD_SEND_DETECTO R

5V_A

IMX1

C518 6

Audio

Q520

5V_A

100K

U510-1

U510-2

0.1uF

2.2K

OPT_RX_AUD_RETURN

LM2904 R521 NU

R520 100K

3V_A

NC OPT_RX_AUD_SEND_UNMUTED

R480 0

OPT_TX_AUD_FLAT_RETURN R517 OPT_TX_AUD_SEND

1uF

OPT_TX_AUD_RETURN VS_AUDIO_SEL VS_GAIN_SEL

3V_A

PWR_SET VOX

3V_A 0.1uF

C452 0.1uF

R462 24K

0.1uF 4.7uF 10 V

SQCAP VDDDAC UIO SQIN PLCAP VOX DACG DACR DACU GND A DISC VDDA

12 11 10 9 8 7 6 5 4 3 2 1

C455 .022uF

CH_ACT

13 14 15 16 17 18 19 20 21 22 23 24

SQ_DET LSIO HSIO ASFIC_CS

GCB2 GCB1 GCB0 CHACT SQDET LSIO HSIO CSX CLK DATA GND SYN LCAP

U451 30C53

C456

SPI_DATA_OUT

0.1uF

3V_A

R451 47K

Not Placed

R517

Not Placed

Q471 3

C465

C471

0.1uF

1000pF

2.2uF

1 R476 100K

4 5

Q470

2 3

D470

2.2K

A_MOD_OUT

L471 390nH C474

C473

150pF

J471 ACCESSORY CONNECTOR

5 S4

NC VR473 20V MMBZ5250B

.022uF

0.1uF

1000pF

1 M1

2.2K

C493

3 M3

J470-1

R478 C478

C476

J491-1 INTERNAL SPEAKER

.022uF 150pF

R494 C494 330K 2.2uF

7 S1 2 M2

VR474 MMBZ5250B 20V

C475

VR475 15V MMBZ5245B

SW_B+

6 S3

SCI

C458

BOOT_ENA

4 S2

R479 100K

C466

OPT_MIC

EXT_MIC_PTT

MOD_OUT

RESET

0.1u F

BATT_CHARGE

R475 180K R477

C472 0.1uF

R255 3.9K 1%

MICROPHONE CONNECTOR

E451

2 16_8_MHZ

BK1005HM471

C459 F1200 0.1uF uP_CLK

5V_B

C481 .01uF

E452 BK1005HM471 5V

E453

5V_A 2

5V BK1005HM471

C497

5V_B

C482 .01uF

Not:Placed:NU 3

Q481 Not_Placed:NU 1

0.1uF R486 100K Not_Placed:NU

R483 150K Not_Placed:NU

R487 0

5V_B 8

2 3

C499 82pF

C483 0.1uF

R484 2.2K

Not_Placed:NU

C484

U480-1

R485 100K 1

Q490

R492

24K

R490 2.2K Not_Placed:NU

Not_Placed:NU .033uF

LM2904 Not_Placed:NU

R491

DC Level 0.3 - 0.4 V low Supply = 7.42 1/2 Supply = 3.22 1 3 2 4

C488

C480

R469

0.1uF

3 J491-3

470pF

U490

TDA854 MODE 5 INPOS OUTNEG SVR OUTPOS 8 INNEG

C479 150pF

6 VCC

GN D

4 J491-4

C489 1

470pF

7 C492

R496 10K Not_Placed:NU

R497 1MEG

10uF

Q482

Not_Placed:NU

R493 330K

R516

Q472

C477

0.1uF

R473 680

5V R474 330

C464

R482 330K

24K

Not_Placed:NU

Not Placed

R463

30K

Not_Placed:NU

R515

1200pF

R481 100K

UHF 100k

0.1uF

R464

Not_Placed:NU

VHF

3V_A

C463

0.1uF

R471

C457

Not Placed

48 NC 47 46 45 44 43 42 41 40 39 38 37 NC

C462

C467

2.2K

25 26 27 28 29 30 31 32 33 34 35 36

SPI_CLK

R513

MICEXT GNDRC MICINT VDDRC TXSND RXRTN AUXTN AUDIO MOD RXSND GCB5 GCB4

PLCAP2 NC VDDSYN SYN F1200 GNDDO GNDD VDDCP VDDD CLK168 GCB3 TXRTN

BW_SEL

0.1uF

VR472

D471

C454

5V_A

C453

C461 1000pF

R460 24K

C451

R472 680 C470

5V_B

Not_Placed:NU

UMG5 1 5V_B

C490 470pF

R498

U511

2 3

R488 330K

C495

UMG5 4

1uF

D491

47 K

8 7

6 5

C496 1uF

U480-2

NC Not_Placed:NU

R499 270K Not_Placed:NU

LM2904 Not_Placed:NU

R489 91K Not_Placed:NU

2 3

R495 5.6K C498 1uF

Figure 11-11. UHF (403-440MHz) Audio Circuitry Schematic Diagram HKLN4216A

November 24, 2003

11-14

UHF 403-440 MHz Schematic Diagrams, Overlays, and Parts Lists

DC Regulation USWB+

POS NEG DATA

U310 TK71750S

VR301 MMBZ5250B

F301

J301

C301

D301

390pF

20V

C303

C304

33uF

.01uF

1 VIN 5 VOUT 3 4 CTRL BYPASS GND 2 C310 .01uF

5V C311

C312

C313

.018uF

10uF

.01uF

Q311 5R

D3_3V BATT_CHARGE

C314

VR302 MMBZ5250B

C302

C305

C306

390pF

100pF

.01uF

1200pF

NC R313 10K

20V

R312 20K

R310 100K

Q313

C315

RX_ENA

1200pF

Q312

TP302 TX_ENA

5T R311 100K

D3_3V

R506 100

1200pF 2

VOLUME

SWB+

R508 100K

R509 100K

RESET

TAB2

TAB1

LOW

R507 100

C316

Q493

S444 SWITCH 3 HIGH 4

C323 R322 100K

Q494 R510

LP2986

330K

ON_OFF

D3_3V

U320

150pF

NC NC

4 INPUT OUTPUT 5 8 SHUTDOWN 3 SENSE ERROR 7 6 TAP FEEDBACK 2 GND

D3_3V C320 .018uF

R320 330K 1%

C321

C322

10uF

.01uF

R321 200K 1%

U330 TK71730S

C331

1 VIN VOUT 5 3 CTRL 4 BYPASS GND 2

3V C334

C333

10uF

.01uF

Figure 11-12. UHF (403-440 MHz) PCB 8486635Z03-O DC Regulation Schematic Diagram November 24, 2003

HKLN4216A

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

J2 MAIN BOARD CONNECTOR J2-9 J2-16 J2-17 J2-10 J2-1 J2-2 J2-3 J2-4 J2-6 J2-13 J2-14 J2-15 J2-18 J2-19 J2-12 J2-21 J2-22 J2-23 J2-24 J2-25 J2-26 J2-27 J2-5 J2-7 J2-8 J2-2 J2-11 J2-20

9 16 17 10 1 2 3 4 6 13 14 15 18 19 12 21 22 23 24 25 26 27 5 7 8 8 11 20

11-15

J1 DISPLAY MODULE CONNECTOR

KEYPAD

LEDBL

DATA CLK LCD_SEL NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC

C1 150pF

C3 150pF

C6 150pF

C8 150pF

DNF

R1 100K

Vddd R6 100K

Vddd

150pF

0.1uF

R10

13K

22 K

43 K

130K

J2-29 G1 J2-30 G2

9 8 7 6 5 4 3 2 1

J1-9 J1-8 J1-7 J1-6 J1-5 J1-4 J1-3 J1-2 J1-1

LEDBL GND GND GND DATA CLK LCD_SEL GND VDDD

G1 J1-10 GND G2 J1-11 GND

R2 13 K S18 SWITCH 1 1 2 3

S17 SWITCH 2 1 2 3

S2 2 SWITCH 6 1

2 3

S2 3 SWITCH 5 1 2 3

S2 5 SWITCH 8 1 2 3

S26 SWITCH 9 1 2 3

S2 7 SWITCH 0 1 2 3

COL ROW

NC NC

REF

Vddd

150pF DNF

STD

LIMITED KEYPAD

NOT PLACED

R10

NOT PLACED

S19 SWITCH 3 1

2 3

1 2 3

S20 SWITCH UP

R3 22 K

S24 SWITCH 4 1

R4 43K

R5 130K

S21 SWITCH 7 1 2 3

2 3

S28 SWITCH 1 2 3

LEDBL D3

NOT PLACED

R13

NOT PLACED

R14

NOT PLACED

R15

NOT PLACED

S2 9 SWITCH # 1 2 3

S3 0 SWITCH DOW N 1 2 3

S31 SWITCH F1 1 2 3

QSMG-H799 D2

D10

R11 470

D11

D3 QSMG-H799

QSMG-H799

S32 SWITCH F2 1 2 3

D1 QSMG-H799

D4 QSMG-H799

D5 QSMG-H799 D6 QSMG-H799

D7 QSMG-H799 D8 QSMG-H799

QSMG-H799 R12 470

R1 3 330

R14 330

R15 33 0

Figure 11-13. UHF (403-440 MHz) Keypad Board Schematic Diagram HKLN4216A

November 24, 2003

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

11-16

D301 C478

4 J470

R469

C476

C473 L471

D470

C489

R481 C482

U480 VR475

8 R482

VR473

R489

C301

R63

VR302

2 3

R483

VR301

C69

E452 3

R61

VR110

S440

C306

2 J301

Q280

L281 2 C92

C91

C113 3

C117

J140

M140

C523

C10

CR1

S442

L21

C116

Q21

R25 C23 R22

C21 C11

U110

SH1

S443

L55

C46

C25

C522

R24

C47

C33

C36

C32

C12

C29

C31 L32

C230

C233

L33

C34

L31

C28 C521

C38

C27

C30

C39

L34 C48

C35

C524 C37

C241 25

R205 R221 R220

C219

C201

R496

C305

C217 C216

C231

S444

C480

J471

Q171

U52 8

3 Y70

C284

R212

C240

R223

C205

R283

C232

C214 C202

R282 SH253

L283

C215

C212

R247

C208 C218

C244

SH201 U201

C207

C412

R417

C419

R410 C413

C418 R419

C209

R431

C410

C432

C210

R400

C400

C433

R504

R230

R243

C204

R245

R244

C213

U404

SH401

C507

C407 C409

L211

C503 C505

C282

C286

17 C243

C245

C408

C406

R280

D251

C446

C504

C506

R281 C281

C283

U403

C488

C302

4 5

R285

C402 C403

7 6

F301

C254

C252

L251

C251

D261

L252

C253

C263

L262

L254

R261 R262

C268

FL54

C257

C255 D262 SH250

C265

C430

C256

C266

C264

C431 Q403

L264

U402

R442

R445 R446 C500 C404

Q402

C422

R424

C421

R425

R443

Q440

R503

C455

L255

R253

C267

D424

D471

VR472

C461

R521

R471

C460

R462

L265

R254

R263

Q472 R472

R264

U451

FL53

R463

VR471

C477

C470

R522

R514 R513

C513

C458

C454

C303

R414

C501

E500

R470

R473

R480

C465

S441

Figure 11-14. UHF (403-440 MHz) PCB 8486635Z03-O Board Component Side View HKLN4216A

November 24, 2003

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

11-17

C141

C134 TP150 D440 3

C105 D491

R498

4 3 Q493

Q481

C481

VR474

R509

R486

R485

Q482

R508

Q490 R495

R494

R487 R484 C484

3 4

C483 R491

R493

R499

R497

U511 R490

U490 5

R492

C492

C490

C498

R488

C479

L103

R104

2 3

C496

R477 R474

R311

C314

R310

TP404

C316

SH100 C171

C106

R105

R475

3 4

Q311

L131

R111 L110

C101

C108 Q100

J491 Q312

R312

R313

C136

C123 R162

R106 L101

C102

C107

C474

Q470

R476

C137

C124

D120

4 1

L102

C112

L100

R479

Q313

C315

C156 C109 C114 R107

C120 R103

L141

L130

U150 C104

C311

U320

R320

C323

C320

R322 R506

R255

C312

R158

C499

FL52

C313

U310

R321

C310

C472

C111 R110

C154

C334

U330

L270

C333 C331

C304

C61

C153

R478

R82 C82

C475

L81

C158

C103

R62

D51

R60

C41

R67

R100 R102

R81

C64

Q170

3 4

C172

C100

L140

L132

C525

C170

Y51 2

C62

C65

C122

C115

R159

R156

SH50

R157

R80

R153

Q150

R101

C74

C150 R152

C81

C80

C66 C67

R155

C60

C63

C42

C43

L41

R40

R65 C68 R66 R64

C151

D121

C132

C159

C471

C271

C322

E453

C457

R451

C456

C321

D52

C273

L272

R78

R74

Q70 R72

C45

R91

L54

R77 R57

U51

L40

C270 R272

R271 L271

R90

R75

TP1

R277

R273

L282

1 R274

R76

C44

C292

C73

C72

SH40

TP2 T42

C274

E451 C497

R284

C285

SH251 U251 20

C275

L292 10

C466

C453

C463

L291

L276

R412 C416

C411

R518

C518 C514

R275

R511

C290

C451

C462

R276

C276

R516

C452

R464

TP403

U510 5

R515

C291

C71 C70 R73

C272

R460

C442 C443

R415

C415

TP200

TP240

R246

C90

C157

R154

C152

L121

R151

C121

C59

C13

CR41

C445

C444 C414

R517

C464

C519

R519

R512

C459

C511

D414

C420

TP301

C512

C467

Q520 3 4

R421

C401

R523

R520 Q471

R420

R418

C447

R423

R422

R441

R440

28 30

C405 R505

C440 C441

C203

D201

R202

C226

C225

R413 R430

SH400

J460

U401

C14 C211

R120

R150

C58

C228

L120

C56

R55

R227 C227

R121

U151

C57

R53 Q51

CR51

R54

C93

L53

SH52

FL51

T41

R23

C20

Q22

C26

R21

Y202 4

SH200

L52

R51 6

R52 C55

C49

Y201

D221

C224

C52 C53

C51

C221

C223

L51

R502

D220

4 3

TP302

Q410

C222

R501 26

C206 R206

C220

R411

R433

R432

TP405

TP401

TP402 C417 R416 R434

C99

R20

C495

R507 4 Q494 3

R510 C493 C494

Figure 11-15. UHF (403-440 MHz) Board Solder Side View HKLN4216A

December 4, 2003

11-18

UHF 403-440 MHz Schematic Diagrams, Overlays, and Parts Lists

C7 1

R11

G2 9

D1 D6

g2 R9

D11

R10

R6 R1 R7

R8 D7

D10

R15 R14 D2

R13 R12

R4 R3

Component Side

Solder Side

Figure 11-16. UHF (403-440 MHz) PCB 8486635Z03-O Keypad Board December 4, 2003

HKLN4216A

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

UHF (403-440 MHz) Radio Parts List

Circuit Ref C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C20 C21 C23 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C41 C42 C43 C44 C45 C46 C47 C48 C49 C51 C52 C53 C55 C56 C57 C58 C59 C60

Motorola Part No. 2109445U37 2109445U39 2109445U09 Not_Placed 0662057M01 2109445U09 Not_Placed 0662057M01 2109445U39 2109445U36 2109445U40 2109445U27 2109445U12 2109445U12 2113743L07 2113743L07 2113743L07 2113743L07 2113743L07 2109445U26 2109445U37 2109445U25 2109445U41 2109445U26 2109445U24 2109445U39 2109445U22 2109445U35 2109445U38 2109445U22 2109445U38 2109445U35 2109445U37 2109445U27 2109445U44 2109445U27 2109445U41 Not_Placed Not_Placed 0662057M01 Not_Placed 2113743N48 2109445U39 2109445U26 2113743M24 2113743E20 2113743M24 2113743N16 2113743N12 2113743M24

HKLN4216A

Description CAP, 15pF CAP, 18pF CAP, 1.8pF CAP, 20pF RES, 0 CAP, 1.8pF CAP, 22pF RES, 0 CAP, 18pF CAP, 13pF CAP, 20pF CAP, 10pF CAP, 2.4pF CAP, 2.4pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 9.1pF CAP, 15pF CAP, 8.2pF CAP, 22pF CAP, 9.1pF CAP, 7.5pF CAP, 18pF CAP, 6.2pF CAP, 12pF CAP, 16pF CAP, 6.2pF CAP, 16pF CAP, 12pF CAP, 15pF CAP, 10pF CAP, 30pF CAP, 10pF CAP, 22pF CAP, 10pF CAP, 10pF RES, 0 CAP, 3.9pF CAP, 82pF CAP, 18pF CAP, 9.1pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 3.9pF CAP, 2.7pF CAP, 0.1uF

Circuit Ref C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C80 C81 C82 C90 C91 C92 C93 C99 C100 C101 C102 C103 C104 C105 C106 C107 C108 C109 C111 C112 C113 C114 C115 C116 C117 C120 C121 C122 C123 C124 C132 C134 C136 C137 C141 C150 C151

Motorola Part No. 2113743N46 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743N53 2113743E20 2113743M24 2113743L33 2113743N42 2109445U41 2109445U45 2109445U45 2113743M24 2311049A57 2113743E20 Not_Placed 2113743M24 2113743L07 2113743M24 2113743M24 2113743L07 2113743N26 2113740F03 2113743L07 2113743N13 2113743L07 2113743M24 2113743L07 2113743M24 2113743L07 2113743L07 2311049A07 2113743M24 2113740F65 Not_Placed 2113743L07 2113740F26 2113740F21 2113740F59 2113740F27 2113740F25 2113740F18 2113740F59 Not_Placed 2113743L07 2113743L07

11-19

Description CAP, 68pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 130pF CAP, 0.1uF CAP, 0.1uF CAP, 4700pF CAP, 47pF CAP, 22pF CAP, 33pF CAP, 33pF CAP, 0.1uF CAPP, 10uF CAP, 0.1uF CAP, 3.6pF CAP, 0.1uF CAP, 390pF CAP, 0.1uF CAP, 0.1uF CAP, 390pF CAP, 10pF CAP, 1pF CAP, 390pF CAP, 3pF CAP, 390pF CAP, 0.1uF CAP, 390pF CAP, 0.1uF CAP, 390pF CAP, 390pF CAPP, 1uF CAP, 0.1uF CAP, 390pF CAP, 8.2pF CAP, 390pF CAP, 9.1pF CAP, 5.6pF CAP, 220pF CAP, 10pF CAP, 8.2pF CAP, 4.3pF CAP, 220pF CAP, 8.2pF CAP, 390pF CAP, 390pF

Circuit Ref C152 C153 C154 C156 C157 C158 C159 C170 C171 C172 C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C221 C222 C223 C224 C225 C226 C227 C228 C230 C231 C232 C233 C240 C241 C243 C244 C245 C251 C252 C253 C254

Motorola Part No. 2113743L07 2113743K18 2113743L07 2113743L41 2113743M24 2113743L07 2113743L07 2113743L07 2113743L07 2113743L07 2113740F59 2109445U52 2109445U13 2113743L09 Not_Placed Not_Placed 2113743L09 2113743L09 2113743L09 2113743L09 2113743E20 2113743F18 2113743L41 2113743L17 2113743F18 2113743E20 2113743L17 2113743F18 2113743E20 2113743N34 2113743L41 2113743L41 2113743L41 2113743L41 2311049A57 2311049A57 2113743L17 2113743E20 2113743F18 2113743L17 2113743E20 2311049A56 2113743N06 2113743N50 0886641Z01 0888600M25 2311049A08 0888600M03 Not_Placed 2109445U22 2109445U24

Description CAP, 390pF CAP, 0.47uF CAP, 390pF CAP, .01uF CAP, 0.1uF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 220pF CAP, 62pF CAP, 2.7pF CAP, 470pF CAP, 2.7pF CAP, 1000pF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 0.1uF CAP, 2.2uF CAP, .01uF CAP, 1000pF CAP, 2.2uF CAP, 0.1uF CAP, 1000pF CAP, 2.2uF CAP, 0.1uF CAP, 22pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAPP, 10uF CAPP, 10uF CAP, 1000pF CAP, 0.1uF CAP, 2.2uF CAP, 1000pF CAP, 0.1uF CAPP, 4.7uF CAP, 1.3pF CAP, 100pF CAP, 0.1uF CAP, .01uF CAPP, 1uF CAP, 150pF CAP, 390pF CAP, 6.2pF CAP, 7.5pF

Circuit Ref C255 C256 C257 C263 C264 C265 C266 C267 C268 C270 C271 C272 C273 C274 C275 C276 C281 C282 C283 C284 C285 C286 C290 C291 C292 C301 C302 C303 C304 C305 C306 C310 C311 C312 C313 C314 C315 C316 C320 C321 C322 C323 C331 C333 C334 C400 C401 C402 C403 C404 C405

Motorola Part No. 2109445U21 2109445U16 2109445U27 2109445U29 2109445U15 2109445U15 2109445U15 2109445U23 2109445U01 2113743L07 2113743L07 2113743E20 2113743L41 2113743E20 2113743L07 2113743N16 2113743L07 2109445U16 2113743L07 2113743L07 2113743E20 2113743N24 2113743N22 2113743N29 2113743L07 2113743L07 2113743L07 2311049A97 2113743L41 2113743N50 2113741F49 2113743L41 2113743E05 2311049A57 2113743L41 2113743L19 2113743L19 2113743L19 2113743E05 2311049A57 2113743L41 2113743N54 2113743L41 2113743L41 2311049A57 Not_Placed 2113743M24 2113743L17 2113743N50 2113743L17 2113743N50

Description CAP, 5.6pF CAP, 3.6pF CAP, 10pF CAP, 5pF CAP, 3.3pF CAP, 3.3pF CAP, 3.3pF CAP, 6.8pF CAP, 0.5pF CAP, 390pF CAP, 390pF CAP, 0.1uF CAP, .01uF CAP, 0.1uF CAP, 390pF CAP, 3.9pF CAP, 390pF CAP, 3.6pF CAP, 390pF CAP, 390pF CAP, 0.1uF CAP, 8.2pF CAP, 6.8pF CAP, 13pF CAP, 390pF CAP, 390pF CAP, 390pF CAPP, 33uF CAP, .01uF CAP, 100pF CAP, .01uF CAP, .01uF CAP, .018uF CAPP, 10uF CAP, .01uF CAP, 1200pF CAP, 1200pF CAP, 1200pF CAP, .018uF CAPP, 10uF CAP, .01uF CAP, 150pF CAP, .01uF CAP, .01uF CAPP, 10uF CAP, .022uF CAP, 0.1uF CAP, 1000pF CAP, 150pF CAP, 1000pF CAP, 150pF

December 4, 2003

11-20

Circuit Ref C406 C407 C408 C409 C410 C411 C412 C413 C414 C415 C416 C417 C418 C419 C420 C421 C422 C430 C431 C432 C433 C440 C441 C442 C443 C444 C445 C446 C447 C451 C452 C453 C454 C455 C456 C457 C458 C459 C460 C461 C462 C463 C464 C465 C466 C467 C470 C471 C472 C473 C474

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

Motorola Part No. 2113743N50 2113743L17 2113743L17 2113743L17 2311049A57 2113743M24 2113743L17 2113743M24 2113743M24 2113743L17 2113743L17 2113743L17 2113743M24 2113743L17 2113743L41 2113743L41 2113743L41 2113743M24 2113743L17 2113743M24 2113743L17 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743M24 2113743M24 2113743E20 2311049A56 2113743E20 2113743L48 2113743E20 2113743E20 2113743E20 2113743E20 2113743E20 2113743L17 2113743E20 2113743E20 2113743E20 2113743L17 Not_Placed 2113743L19 2113743E20 2113743F18 2113743E20 2113743N54 2113743N54

December 4, 2003

Description CAP, 150pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAPP, 10uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 0.1uF CAP, 1000pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 1000pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAPP, 4.7uF CAP, 0.1uF CAP, .022uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 470pF CAP, 1200pF CAP, 0.1uF CAP, 2.2uF CAP, 0.1uF CAP, 150pF CAP, 150pF

Circuit Ref C475 C476 C477 C478 C479 C480 C481 C482 C483 C484 C488 C489 C490 C492 C493 C494 C495 C496 C497 C498 C499 C500 C501 C503 C504 C505 C506 C507 C511 C512 C513 C514 C518 C519 C521 C522 C523 C524 C525 CR1 CR41 CR51 D51 D52 D120 D121 D201 D220 D221 D251 D261

Motorola Part No. 2113743L48 2113743L48 2113743M24 2113743N54 2113743N54 2113743E20 Not_Placed Not_Placed 2113743E20 Not_Placed 2113743L09 2113743L09 2113743L09 2113928J08 2113743L17 2113743F18 2113743F16 2113743F16 2113743E20 2113743F16 2113743N48 2113743L17 2113743F16 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2113740F59 2113743N22 2113740F59 2113743N31 2113743E20 2113743F16 2109445U15 2109445U11 2186463Z04 2186463Z05 2113743L07 4813825A19 4802246J04 4813825A19 4802245J97 4802245J97 4880973Z02 4880973Z02 4862824C03 4802233J09 4802233J09 4862824C01 4862824C01

Description CAP, .022uF CAP, .022uF CAP, 0.1uF CAP, 150pF CAP, 150pF CAP, 0.1uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, .033uF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 10uF CAP, 1000pF CAP, 2.2uF CAP, 1uF CAP, 1uF CAP, 0.1uF CAP, 1uF CAP, 82pF CAP, 1000pF CAP, 1uF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 220pF CAP, 6.8pF CAP, 220pF CAP, 16pF CAP, 0.1uF CAP, 1uF CAP, 3.3pF CAP, 2.2pF CAP, 0.55pF CAP, 0.6pF CAP, 390pF MMBD352 HSMS2829 MMBD352 DAN235ETL DAN235ETL MA4PH261 MA4PH261 1SV232 IMN10 IMN10 1SV229 1SV229

Circuit Ref D262 D301 D414 D424 D440 D470 D471 D491 E451 E452 E453 E500 F301 FL51 FL52 FL53 FL54 J140 J301 J460 J470 J471 J491 L1 L2 L3 L21 L31 L32 L33 L34 L40 L41 L51 L52 L53 L54 L55 L81 L100 L101 L102 L103 L110 L120 L121 L130 L131 L132 L140 L141

Motorola Part No. 4862824C01 4813833A19 4805129M41 4809924D18 4805729G49 4809924D18 4809924D18 Not_Placed 2480640Z01 2480640Z01 2480640Z01 2480640Z01 6580542Z01 9180022M11 9180468V04 9180469V05 9180469V03 0986428Z01 0986565Z01 Not_Placed 0985818A01 0980683Z03 2809926G01 2409348J15 2409348J15 2409348J15 2413926N17 2409348J15 2409348J15 2409348J15 2409348J15 2413926K16 2413926K16 2413926N26 2462587V44 2113743N52 2413923A25 2413926N15 2413923A19 2413926K27 2413926K27 2409377M26 2409377M31 2413926K27 2413926K27 2462587V25 2460591M27 2460591M32 2460591M27 2113740F65 2460591M27

Description 1SV229 MBRM120ET3 MMBD501 RB520S-30 BRPY1204W RB520S-30 RB520S-30 MMBD501 BK1005HM471 BK1005HM471 BK1005HM471 BK1005HM471 FUSE MXF45 FLTR CFWC455E CFWC455G CONN_J CONN_J CONN_J CONN_J CONN_J CONN_P IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 27nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 27nH IDCTR, 27nH IDCTR, 150nH IDCTR, 680nH CAP, 120pF IDCTR, 1.2uH IDCTR, 18nH IDCTR, 1uH IDCTR, 220nH IDCTR, 220nH IDCTR, 8.7nH IDCTR, 30nH IDCTR, 220nH IDCTR, 220nH IDCTR, 18nH IDCTR, 22.69nH IDCTR, 27.42nH IDCTR, 22.69nH CAP, 390pF IDCTR, 22.69nH

Circuit Ref L211 L251 L252 L254 L255 L262 L264 L265 L270 L271 L272 L276 L281 L282 L283 L291 L292 L471 M140 Q21 Q22 Q51 Q70 Q100 Q150 Q170 Q171 Q280 Q311 Q312 Q313 Q402 Q403 Q410 Q440 Q470 Q471 Q472 Q481 Q482 Q490 Q493 Q494 Q520 R20 R21 R22 R23 R24 R25 R40

Motorola Part No. 2413926K30 2413926N28 2413926N17 2484562T11 2413926N28 2413926N17 2484562T11 2413926N28 2413926N28 Not_Placed 2413926N28 2413926N17 2413926N18 2413926N14 Not_Placed 2413926N10 2413926N14 2413926K30 0286427Z01 4802247J01 4805723X02 4802197J95 4880214G02 4885593U03 4880214G02 4809939C34 4880048M01 4802245J95 4809579E18 4809579E18 4802245J54 4880048M01 4813824A17 4802245J54 5180159R01 4805723X02 4802245J54 4805723X02 Not_Placed Not_Placed 4802245J54 4809579E18 4802245J54 5180159R01 0662057M92 0662057M47 0662057M92 0662057N09 0662057M76 0662057M92 0662057M74

Description IDCTR, 390nH IDCTR, 220nH IDCTR, 27nH IDCTR, 12.5nH IDCTR, 220nH IDCTR, 27nH IDCTR, 12.5nH IDCTR, 220nH IDCTR, 220nH IDCTR, 220nH IDCTR, 220nH IDCTR, 27nH IDCTR, 33nH IDCTR, 15nH IDCTR, 22nH IDCTR, 6.8nH IDCTR, 15nH IDCTR, 390nH ANTENNA_NUT BFS505 UMT1 PBR941 MMBT3904 BFG540W MMBT3904 EMB10 DTC144EKA BFS540 TP0101T TP0101T UMG5 DTC144EKA MMBT3906 UMG5 IMX1 UMT1 UMG5 UMT1 MMBT3906 MMBT3904 UMG5 TP0101T UMG5 IMX1 RES, 5.6K RES, 75 RES, 5.6K RES, 27K RES, 1.2K RES, 5.6K RES, 1K

HKLN4216A

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

Circuit Ref R51 R52 R53 R54 R55 R57 R60 R61 R62 R63 R64 R65 R66 R67 R72 R73 R74 R75 R76 R77 R78 R80 R81 R82 R90 R91 R100 R101 R102 R103 R104 R105 R106 R107 R110 R111 R120 R121 R150 R151 R152 R153 R154 R155 R156 R157 R158 R159 R162 R202 R205

Motorola Part No. 0662057M43 0662057N01 0662057N11 0662057M91 0662057M62 0662057M90 0662057M83 0662057N23 0662057M86 0662057N13 0662057N06 0662057N13 0662057N06 0662057N06 0662057M64 0662057M80 0662057M76 0662057N01 0662057V04 0662057U99 0662057M70 0662057M91 0662057M74 Not_Placed 0662057M43 0662057M79 0662057M72 0662057M20 0662057M72 0662057M85 0662057A07 0662057M84 0662057M90 Not_Placed 0662057M67 0662057M80 0662057C55 0662057C55 0680539Z01 0662057A15 0662057V27 0662057V27 0662057V27 0662057V27 0662057M62 0662057M82 0662057M91 0662057B47 0662057M98 0662057N27 0662057M50

HKLN4216A

Description RES, 51 RES, 12K RES, 33K RES, 5.1K RES, 330 RES, 4.7K RES, 2.4K RES, 100K RES, 3.3K RES, 39K RES, 20K RES, 39K RES, 20K RES, 20K RES, 390 RES, 1.8K RES, 1.2K RES, 12K RES, 12K RES, 8.2K RES, 680 RES, 5.1K RES, 1K RES, 0 RES, 51 RES, 1.6K RES, 820 RES, 5.6 RES, 820 RES, 3K RES, 18 RES, 2.7K RES, 4.7K RES, 300 RES, 510 RES, 1.8K RES, 150 RES, 150 RES, 0.1 RES, 39 RES, 100K RES, 100K RES, 100K RES, 100K RES, 330 RES, 2.2K RES, 5.1K RES, 0 RES, 10K RES, 150K RES, 100

Circuit Ref R206 R212 R220 R221 R223 R227 R230 R243 R244 R245 R246 R247 R253 R254 R255 R261 R262 R263 R264 R271 R272 R273 R274 R275 R276 R277 R280 R281 R282 R283 R284 R285 R310 R311 R312 R313 R320 R321 R322 R400 R410 R411 R412 R413 R414 R415 R416 R417 R418 R419 R420

Motorola Part No. Not_Placed 0662057C01 0662057M34 0662057M34 0662057M50 0662057N13 0662057N08 0662057M72 0662057M43 0662057M78 0662057N23 0662057N07 0662057M38 0662057M50 0662057U91 0662057N07 0662057M94 0662057M38 0662057M50 0662057M90 0662057M92 0662057M62 0662057M38 0662057M50 Not_Placed 0662057B47 0662057M90 0662057M96 0662057M73 0662057M53 0662057M62 0662057M01 0662057N23 0662057N23 0662057N06 0662057M98 0662057V43 0662057V35 0662057N23 Not_Placed 0662057M98 0662057M72 0662057N23 0662057N23 0662057N11 0662057N11 0662057N06 0662057M98 0662057N23 0662057M90 0662057V35

11-21

Description RES, 100 RES, 0 RES, 22 RES, 22 RES, 100 RES, 39K RES, 24K RES, 820 RES, 51 RES, 1.5K RES, 100K RES, 22K RES, 33 RES, 100 RES, 3.9K RES, 22K RES, 6.8K RES, 33 RES, 100 RES, 4.7K RES, 5.6K RES, 330 RES, 33 RES, 100 RES, 1K RES, 0 RES, 4.7K RES, 8.2K RES, 910 RES, 130 RES, 330 RES, 0 RES, 100K RES, 100K RES, 20K RES, 10K RES, 330K RES, 200K RES, 100K RES, 100K RES, 10K RES, 820 RES, 100K RES, 100K RES, 33K RES, 33K RES, 20K RES, 10K RES, 100K RES, 4.7K RES, 200K

Circuit Ref R421 R422 R423 R424 R425 R430 R431 R432 R433 R434 R440 R441 R442 R443 R445 R446 R451 R460 R462 R463 R464 R469 R470 R471 R472 R473 R474 R475 R476 R477 R478 R479 R480 R481 R482 R483 R484 R485 R486 R487 R488 R489 R490 R491 R492 R493 R494 R495 R496 R497 R498

Motorola Part No. 0662057V27 0662057N23 0662057N23 0662057V35 0662057V27 0662057N23 Not_Placed 0662057M01 0662057N23 Not_Placed 0662057M90 0662057M90 0662057A33 0662057A27 0662057M90 0662057M98 0662057N15 0662057N08 0662057N08 0662057N08 0662057N10 0662057M26 0662057M82 0662057M82 0662057M70 0662057M70 0662057A37 0662057N29 0662057N23 0662057M82 0662057M82 0662057N23 0662057B47 Not_Placed Not_Placed Not_Placed Not_Placed Not_Placed Not_Placed 0662057M01 0662057N35 Not_Placed Not_Placed 0662057M01 0662057N08 0662057N35 0662057V43 0662057M92 Not_Placed Not_Placed Not_Placed

Description RES, 100K RES, 100K RES, 100K RES, 200K RES, 100K RES, 100K RES, 100K RES, 0 RES, 100K RES, 100K RES, 4.7K RES, 4.7K RES, 220 RES, 120 RES, 4.7K RES, 10K RES, 47K RES, 24K RES, 24K RES, 24K RES, 30K RES, 10 RES, 2.2K RES, 2.2K RES, 680 RES, 680 RES, 330 RES, 180K RES, 100K RES, 2.2K RES, 2.2K RES, 100K RES, 0 RES, 100K RES, 330K RES, 150K RES, 2.2K RES, 100K RES, 100K RES, 0 RES, 330K RES, 91K RES, 2.2K RES, 0 RES, 24K RES, 330K RES, 330K RES, 5.6K RES, 10K RES, 1MEG RES, 47K

Circuit Ref R499 R501 R502 R503 R504 R505 R506 R507 R508 R509 R510 R511 R512 R513 R514 R515 R516 R517 R518 R519 R520 R521 R522 R523 S440 S441 S442 S443 S444 SH1 SH40 SH50 SH52 SH100 SH200 SH201 SH250 SH251 SH253 SH400 SH401 T41 T42 U51 U52 U110 U150 U151 U201 U251 U310

Motorola Part No. Not_Placed 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057N23 0662057N23 0662057N35 0662057N23 0662057N27 0662057N23 0662057N23 0662057M01 Not_Placed Not_Placed 0662057N31 0662057N23 0662057N23 Not_Placed 0662057N23 0662057M98 4080710Z06 4070354A01 4070354A01 4070354A01 1880619Z02 2686421Z01 2686419Z01 2686423Z01 2686424Z01 2686418Z01 2686424Z01 2686423Z01 2686425Z01 2686425Z01 2686422Z01 2686420Z01 2686420Z01 2580541Z02 2580541Z02 5186144B01 5109522E10 0186438Z03 5113818A01 2484657R01 5185963A27 5105750U54 5102478J01

Description RES, 270K RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100K RES, 100K RES, 330K RES, 100K RES, 150K RES, 100K RES, 100K RES, 0 RES, 0 RES, 0 RES, 220K RES, 100K RES, 100K RES, 100K RES, 100K RES, 10K SWITCH SWITCH SWITCH SWITCH SWITCH SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD XFMR XFMR SA616 TC7W04F RA07M4047M_UHF LM2904 57R01 63A27 50U54 TK71750S

December 4, 2003

11-22

UHF 403-440 MHz PCB 8486635Z03-O Schematic Diagrams, Overlays, and Parts Lists

Circuit Ref U320 U330 U401 U402* U403 U404* U451 U480 U490 U510 U511 VR110 VR301 VR302 VR471 VR472 VR473 VR474 VR475 Y51 Y70 Y201* Y202

Motorola Part No.

Description

5185963A55 LP2986 5102479J01 TK71730S 5102226J56 MC68HC11FL0 5102463J64 X25128-2.7 Not_Placed SRM2B256 5102480J01 AT49LV001N_70VI 5185130C53 30C53 Not_Placed LM2904 5108858K99 TDA8541 5113818A01 LM2904 4802245J54 UMG5 4813830A86 MM3Z3V9T1 4813830A33 MMBZ5250B 4813830A33 MMBZ5250B 4813830A18 MMBZ5235B 4813830A09 MMBZ5226B 4813830A33 MMBZ5250B 4813830A33 MMBZ5250B 4880140L20 MMBZ5245B 4802245J84 TSS2_44_395MHZ 9186145B02 45B02 4880114R06 14R06 Not_Placed 45J68 * Motorola Depot Servicing only

Circuit Ref R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15

Motorola Part No. 0662057A97 NOTPLACED NOTPLACED NOTPLACED NOTPLACED 0662057A97 0662057A76 0662057A81 NOTPLACED NOTPLACED 0662057A41 0662057A41 NOTPLACED NOTPLACED NOTPLACED

Description RES, 100K RES, 13K RES, 22K RES, 43K RES, 130K RES, 100K RES, 13K RES, 22K RES, 43K RES, 130K RES, 470 RES, 470 RES, 330 RES, 330 RES, 330

UHF (403-440 MHz) Keypad Board Parts List

Circuit Ref C1 C2 C3 C4 C5 C6 C7 C8 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 J1 J2

December 4, 2003

HKLN4216A

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

11-23

Chapter 11 UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

UHF R2 USWB+

3V 5T

USWB+

3V 5R

USWB+

TX_ENA TX_ENA 5V

PWR_SET 5R

TX_UHF_R2 PWR_SET

DEMOD

RX_FE_UHF_R2

RX_BE BW_SEL

BW_SEL

CONTROLLER

RSSI

IF_OUT

IF_IN

RX_IN

RX_OUT TX_INJ

RSSI

RX_INJ

MOD_OUT

MOD_IN

16_8_MHZ

PRESC

RX_INJ

SYNTH_UHF_R2 SYNTH_CS

V_STEER

V_SF VCO_MOD

SPI_DATA_OUT

TX_INJ TRB

LOCK

VCO_UHF_R2

SPI_CLK VCO_MOD

SPI_DATA_OUT

V_STEER

SYNTH_CS V_SF

SPI_CLK

PRESC

TRB

LOCK

Figure 11-17. UHF (440-470 MHz) Radio Circuit Block Diagram HKLN4216A

November 24, 2003

11-24

UHF 438-470 MHz Schematic Diagrams, Overlays, and Parts Lists

Chapter 11 UHF 438-470 MHz Schematic Diagrams, Overlays, and Parts Lists FE_5R 5R R20 5.6K

UHF R2 Front End 1

390pF

Q22

C26

R21 82

SH1 SHIELD

UMT1

C20

SH40 SHIELD

1 3

390pF

C25 390pF

L55 22nH C99

R22 5.6K

R23 27K

0.1uF

C23

IF1

C3 6.2pF

C5 7.5pF

0.45pF 6.7%

C6 8pF

C8 5.1pF

C1 9.1pF 1.1%

1.3%

L1 9.85nH 2%

1.25%

C12

16pF 1%

L2 9.85nH 2%

CR1

2% C7

C10

L3 9.85nH 2%

16pF 1%

390pF

15pF

1.2%

L52

R25 5.6K

L21 22nH

8pF 1.25%

R51 51 2

BFS505

IF_OUT

0.5pF

Q21

FE_IF_OUT

680nH

C21

C11

RX_IN 1.6%

5.1pF C522

C9 8.2pF

0.79V 1.1%

4.2V

1.5K

390pF C2 9.1pF

C521

R24

C523

C51

L51 150nH

82pF

C524

0.5pF C28 12pF 1% C27 7.5pF 1.3%

C29 6.8pF 1.5% L31 9.85nH 2%

C32 6.8pF

C31 7pF 1.43% C30

C46

16pF 1%

1.5% L32 9.85nH 2%

1.3%

1.5% C33

C37 7.5pF

C35 7.5pF

C34 6.8pF

C36

C47 L33 9.85nH 2%

20pF 1%

18pF 1%

C38 8.2pF 1.2% L34 9.85nH 2%

C48

T41 RF BALUN

0 C39

C49

7pF 1.43%

C13 3 2

1.5pF 6.7%

C14 1.5pF

6 NC

6.7%

CR41 HSMS2829

1 IO1 3 4

T42 IF BALUN

IO3

IO4

3 IO2 2

FE_RF_IN J

C42

RX_INJ 16pF C41 7.5pF

L40

L41

27nH

27nH C43 20pF

C44 8.2pF

C45 16pF

R40 1K

6 NC

1 TP1

TP2 1

Figure 11-18. UHF (438-470 MHz) PCB 8486348Z13-C Receiver Front End Schematic Diagram November 24, 2003

HKLN4216A

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

11-25

RX Back End (Overtone)

C68

U52-1 TC7W04F

FL53 CFWC455E

R65 39K

0.1uF

R66 20K

OUT 2

0V for 12.5kHz

C69 R63 39K

D51

0.1uF

1 IN

SH50 SHIELD

8 U52-4 PWR_GND

SH52 SHIELD

GND

3 2

C74

R62 3.3K

VCC

OUT 2

R67 20K GND1

U52-3 TC7W04F

D52

R64 20K

FL54 CFWC455G

R60 2.4K

1 IN

4 C63

C62

FL52 FLTR 9180468V04

0.1uF

OU T 2 C64 GND

C66

C65

0.1uF

47pF

C67

C61

0.1uF

R72 390

0.1uF

Q70

C91

0.1uF

10uF

1 RFIN 2 RFIN_DEC

51 C90

C92 0.1uF

R53

FL51 MXF45 44.85MHz

0.1uF

R54 5.1K

OUT 6

3 IN C52 18pF C53 9.1pF 1.1%

0.74V 120pF C93

GND2

2 CC1 5 CC2

GND1

IF_IN

3.6pF NU

C57

3.9pF C59

0.1uF

2.7pF

L53

IF_IN

C58

3.05V

33K C55

R52 12K

Q51

CR51

L54 1.2uH 2%

SA616

LIMOUT 11 GND

C70

R73 1.8K

130pF

R74 1.2K Y70 45B02 455KHz 1

R57 4.7K

2 3

C81

C80

R80 5.1K

33pF 1%

PBR941 1

U51

C71 0.1uF

C60 0.1uF

VCC

9 RSSI_FEED

10 QUADIN

R90

LIMIN 14 LIM_DEC1 13 LIM_DEC2 12

5 RSSIOUT

R55 330

0.1uF

7 AUDIO_FEED 8 AUDIOOU T

C56

IFAMP_DEC1 IFAMPI N IFAMP_DEC2 IFAMPOUT

1.6K

3 OSCOUT 4 OSCIN

3.39V

19 18 17 16

MMBT3904

R91

MIXOUT 20

IF_5V

47pF

GND2

BW_SE L

TC7W04F

5V for 25kHz

GND2

U52-2

R61 100K IF_BAND_SEL

GND1

R75

IF_RSSI

2.1V When -47 dBm @ antenna

RSSI

22pF 1%

C72

12K

0.1uF

4 R81 1K C82

Y51 TSS2_44_395MHZ 44.395MHz 3 OU T

L81 1uH

33pF 1%

R82 NU

GND1 GND 4

1 R76 12K 1%

R77

R78

8.2K 1%

680

IF_DEMOD 1.5V

DEMOD

C73 4700pF

Figure 11-19. UHF (438-470 MHz) Receiver Back End Schematic Diagram

HKLN4216A

November 24, 2003

11-26

UHF 438-470 MHz Schematic Diagrams, Overlays, and Parts Lists

UHF R2 Synthesizer

FN_V_SF

4.5V SH201 SHIELD

SH200 SHIELD

R230 22K

R247 20K

C231

C232

C233

1000pF

0.1uF

4.7uF

V_SF

1 6 22 33 44

FN_LOCK

C241

FN_PRESC

NC NC

42 CCOMP 18 REFSEL

32 PREIN 27 SFBASE 26 SFCAP

PRESC 100pF C240 1.3pF

LOCK

DGND AGND PRE_GND PD_GND

NC NC NC

31 NC3 29 NC2 17 NC1

2.2uF NC NC

21 VBPASS 35 PVREF

9 CEX 8 CLK

FN_MOD MOD_IN FN_SYNTH_CS

VMULT4 VMULT3 VMULT2 VMULT1

11 12 14 15

NC NC

63A 27

TP200 1

Crystal

TCXO

C201

220pF

C202

62pF

C203

2.7pF

C206

0.01uF

R202

150k

47k

470pF

C209 470pF

100

D201

1SV232

Y201

14R06

Y202

PT08MTPB49

R244 51 TP240

C245 VCO_MOD FN_VCO_MOD

XTAL2 24 XTAL1 23

5V C202

C201

62pF 1%

220pF

C211 0.1uF

R206 NU

4 VCC

Y202 45J68 NU

R220 91

R221 91 C220

FN_16_8 16_8_MHZ

22pF

C205

3 OU T VCON 1 16.8MHz

C210

1uF

R205 100

C221

.01uF

GND Y201 14R06

3 L211

OUT

390nH C212

C213

C214

2.2uF

.01uF

1000pF

.01uF

0V IN

GND1 GND 4 2

1 D201

.01uF

C203

D220

C223

A3 4 5 A2 6 A1

3 K3 2 K2 1 K1

C222

16.8MHz FN_3V

.01uF

R202 150K

MODOUT 41 FREFOUT 19

470pF

V_STEER

C244

R243 820

R206

0.1uF

TX: 3V RX: 0V

C206 C208

C243

100K TR B

SPI_CL K C207

3.2V to 4.5V

1.5K

R246

FN_TRB

NC NC

FN_CLK

Reference Oscillator

FN_V_STEER

R245

5 34 20 36 13 47

SYNTH_CS

NC NC

LOCK: 3V UNLOCK: 0V

470pF

3 2 1 48

PD_VDD PRE_VDD AVDD DVDD VRO VCP

FN_DATA

TEST2 38 TEST1 37

C204 NC

AUX4 AUX3 AUX2 AUX1

U201

30 SFIN 7 DATA 10 MODIN

SPI_DATA_OUT

WARP INDMULT SFOUT ADAPTSW LOCK IADAPT IOUT

39 BIAS2 40 BIAS1

C230

25 16 28 46 4 45 43

C224 2.7pF 3.7%

.01uF

R227 NU

45J68

4 NC A3 A2 5 6 A1

NC 3 K3 2 K2 1 K1

C228

C227

C226

C225

0.1uF

1000pF

10uF

D221

5V FN_5V

R223

R212

5V 0

100

C215

C216

C217

C218

C219

2.2uF

0.1uF

1000pF

2.2uF

0.1uF

Figure 11-20. UHF (438-470 MHz) PCB 8486348Z13-C Synthesizer Schematic Diagram November 24, 2003

HKLN4216A

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

11-27

UHF R2 VCO V_SF VCO_VSF

R273

L270

4.5V

V_S F

220nH

C292

330

C274

C270

R277

0.1uF 390pF SH250 SHIELD

SH251 SHIELD

SH253 SHIELD

390pF

VCO_3V

L272 220nH

0 R284 330

L282 15nH

C285 0.1uF

3V C272 L292 15nH

390pF

L252 27nH

C253 6.2pF

C255 5.6pF

1.6%

0.1%

C254

D251

5.1pF 2%

L254 12.5nH 2%

R274 33

.01uF

L271 NU

R271 5.1K

1 2 3 4 5 6 16 15 20 19

C256 3.9pF 2.5%

R272 5.6K

R253 33

C257

VCO_V_STEER L251 V_STEE R 3.2V to 9.5V

R254 100

12pF 1%

220nH C251 150pF

C290

10 TX_IADJ TX_OUT RX_IADJ RX_OUT 8 SUPER_FLTR RX_SWITCH 7 COLL_RFIN TX_SWITCH 13 RX_BASE U251 RX_EMITTER 4 50U5 TX_BASE TX_EMITTER FLIP_IN TRB_IN 12 PRESC_OUT

6.8pF

NC NC

VCO_5R 5R

27nH C284

R281 8.2K

390pF

C263 4.7pF

C281

2.1%

C286

R285

6.2pF

C264

D261 2pF 5%

L264 12.5nH 2%

3.3pF 3.0% C268 V_SF

0.5pF

R282 910

C282

VCO_RX_INJ RX_INJ

3.3pF

390pF

3 1

Q280

C265

27nH

18pF

L281

L255 220nH

L262

C291

L291 6.8nH

C252 NU

VCO_TX_INJ TX_IN J

9 GND_FLAG 11 GND_BUFFERS 17 GND_LOGI C

C273 C271

14 VCC_BUFFERS 18 VCC_LOGIC

0.1uF 1

BFS540 L283 NU

R280 4.7K

C283 R283 150

390pF

C266 2.4pF 0.1% R263 V_SF 33

R262 6.8K VCO_MOD

R261

C267

R264 100

7.5pF 1.3%

R276

L276

27nH

VCO_PRESC PRESC

C276

VCO_MOD 22K

D262

L265 220nH

6.8pF

1SV229

VCO_TRB

R275

TR B RX: 0V TX: 3V

100

C275 390pF

Figure 11-21. UHF (438-470 MHz) Voltage Controlled Oscillator Schematic Diagram HKLN4216A

November 24, 2003

11-28

UHF 438-470 MHz Schematic Diagrams, Overlays, and Parts Lists

UHF R2 Tx

PA_USWB+ USWB+ PA_TX_EN A C170

TX_ENA

390pF Q171

Q170 EMB10 3

C171 390pF

SH100 SHIELD

C157

C154

0.1uF

390pF

R152 100K 1%

R158

C155

C151

1.5K

0.1uF

390pF

C156 3 .01uF 8 TP150

Q150 R157

2.2K C159

U150-1

LM2904

390pF

PA_PWR_SET

R153 100K 1%

C150

57R01

390pF

100K 1%

U150-2 R156 330

R151

R154

5 2

U151

LM2904

C153

C152

R155 100K 1%

390pF

R150 0.1

C172 R120 150

0.47uF

390pF

R162

PWR_SET 10K

R121 150

C158 390pF C113 390pF PA_5T

L110

680

220nH

C111 C109

C114

0.1uF

390pF

R106 4.7K

R107 NU

C103

L100 220nH

R111 2K

390pF

C102

C112

C173

0.1uF

390pF

PA_TX_IN J

R101

C100 390pF

TX_IN J R102 820

C105

R105 2.7K

C104 10pF

R103 3K

Q100

3.9pF

BFG540W

L102

C107 NU

390pF

VGG

VDD

U110

RFIN RFOUT RA07M4452M_UHF GND

C117 390pF

D120 MA4PH261

C131 NU

C133 NU

C135 NU

L130

L131

L132

17.02nH C130 NU

C132 6.8pF

17.02nH C134 6.8pF

J140

C137

17.02nH C136

4 S1 3 S2

220pF L140

4.3pF

2 G1 5 G2

43pF

2 4

3.6nH

5.6 R100 820

5.1nH

0.1uF

C121

MM3Z3V9T1 3.9V

390pF L101 220nH

1uF

VR110

C106

L103

C116 0.1uF L120 220nH

R110

C115

C120 NU

RX_OUT

15nH R104 18

C101 0.1uF

C108 390pF

1 T1 6 T2

C124

L121

3 C122

D121

5.1pF

MA4PH261

C123

390pF

M140 ANTENNA_NUT

PA_RX_OU T

3.9pF NC C141 NU

1 TAB1 2 TAB2

TAB3 3 TAB4 4

NC NC

L141 30.54nH

Figure 11-22. UHF (438-470 MHz) PCB 8486348Z13-C Transmitter and Power Control November 24, 2003

HKLN4216A

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

11-29

5V +3 V

SW_B +

SW_B

Controller

VS_AUDIO_SEL CNTL_PWR_SET OPT_MI C

PWR_SET

OPT_TX_AUD_FLAT_RETURN OPT_TX_AUD_RETURN 27

OPT_RX_AUD_SEND_DETECTO R

OPT_RX_AUD_SEND_UNMUTED

OPT_RX_AUD_RETURN

SW_B +

C503 1000pF

MOD_OUT

16_8_MHZ

BATT_CHARGE

RESET

uP_CL K

F1200

SQ_DET

SC I

ASFIC_CS

BOOT_ENA

1000pF

EXT_MIC_PTT

HSIO

BK1005HM47

LSI O

C500

MOD_OUT CNTL_16_8_MHZ

VOX

BW_SEL

CNTL_MOD_OU T

16_8_MHZ

CH_ACT

SPI_DATA_OUT

12 10

C501

CNTL_SPI_CLK

1uF

SPI_CLK CNTL_SPI_DATA_OUT SPI_DATA_OUT

R502 100

R504

100

CNTL_SYNTH_CS SYNTH_CS

R501 100

CNTL_LOCK LOCK

J460-1 CONNECTOR ACCESSORY/KEYPA D

CNTL_RSSI

R505 TP40 3

100

C406

RSSI CNTL_TX_ENA TX_ENA

TP40 4

150pF

SW_B

USWB BATT_DETECT

SCI

RESET

uP_CLK

ASFIC_CS

F120 0

BOOT_ENA

EXT_MIC_PTT

LSIO

HSIO

VOX

CH_ACT

SQ_DET

SPI_DATA_IN

D3_3V

DISPL_COM_DATA_SEL VS_RAC OPT_DATA_READY

SPI_CLK

SW_B +

SPI_DATA_OUT

D3_3 V

SW_B +

1000pF

R503 10 0

C50 4

C403 150pF

SPI_CLK

E500 1

C405 150pF

D3_3 V

BW_SEL

AUDI O

VS_GAIN_SEL 3V

DEMOD CNTL_BW_SEL

OPT_TX_AUD_SEND 28

PWR_SET CNTL_DEMOD

DEMO D

3V D3_3V CNTL_USWB+ USWB+ CNTL_5V 5V

TP301 CNTL_5R

5R CNTL_5T

BACKLIGHT

KEYPAD_ROW

CNTL_3V

SYNTH_C S

KEYPAD_COL

1000pF

1000pF C404

1000pF C407

C409

1000pF

C408

1000pF

1000pF C507

1000pF C40 2

1000pF C506

C505

S441 SWITCH 1 A1 3 A2

B1 2

OPT_BUTTON_ 2 FREQ_SEL_ 3

B1 2 B2 4

S440 SWITCH 8

PC0 PC1 PC2 C0 C1 9 7

PC3

GND1 GND

1 A1 3 A2

TX_EN A

BATT_CHARGE

RX_ENA

RX_EN A

VOLUME

ON_OFF

ON_OF F

D3_3V

RESET

OPT_BUTTON_ 1

B1 2 B2 4

S443 SWITCH

RSSI

PTT

B2 4

S442 SWITCH 1 A1 3 A2

MICROPROCESSOR

SWB+

OPT_EN A VS_CS VS_IN T

LOCK USWB +

DISP_EN A

1 2 4 C0 C1

DC_REGULATION

TX_EN A

FREQ_SEL_ 0 FREQ_SEL_ 1 FREQ_SEL_ 2

Schematic Diagram HKLN4216A

November 24, 2003

11-30

UHF 438-470 MHz Schematic Diagrams, Overlays, and Parts Lists

Microprocessor D3_3 V

D3_3V R416 20K

R410 10K

D3_3V C410

C411

C412

10uF

0.1uF

1000pF

C413 R412 100K

0.1uF

8 6 1 3 7 5

TP405

VCC SCK CS 2 WP SO HOLD SI VSS

0.1uF

Q410

TP402

C418

R417 10K

R411

SC I 820

SH401 SHIELD

SH400 SHIELD

C419

1000pF

U402

R419 4.7K

X25128-2.7 EEPROM 1

TP401 LSI O CH_ACT

SPI_DATA_IN

SQ_DET

SPI_DATA_OUT

HSI O OPT_DATA_READY

SPI_CLK

uP_CLK C400

R400 NU

D3_3 V

R418

NU 100K

C414

C417 C415

DISPL_COM_DATA_SEL

C416

0.1uF 1000p F 1000pF

R445 4.7K

2 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)

ON_OFF

30 31 32 33 34 35 36 37

PC0_DATA0 PC1_DATA1 PC2_DATA2 PC3_DATA3 PC4_DATA4 PC5_DATA5 PC6_DATA6 PC7_DATA7

A(18:0) C430

C431

0.1uF

1000pF

D3_3V

R433 100K

21 22 23 25 26 27 28 29

D0 D1 U404 A0 D2 FLASH A1 D3 A2 A3 D4 A4 D5 A5 D6 A6 D7 A7 6 A8 NC A9 A10 A11 A12 A13 A14 A15 A16 GND

R431 NU

20 19 18 17 16 15 14 13 3 2 31 1 12 4 5 11 10

C432

C433

0.1uF

1000pF

VDD VDDR VDDL AVDD

LVOUT 95

VRL 68 VRH 69

EXTAL 90 XTAL 91

86 85 84 83 82 81 80 79

12 88 39 59

PTT EXT_MIC_PTT FREQ_SEL_0 FREQ_SEL_1 VS_RAC

FREQ_SEL_2 FREQ_SEL_3 OPT_BUTTON_1 OPT_BUTTON_2

5V 1

A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7) A(8) A(9) A(10) A(11) A(12) A(13) A(14) A(15) A(16)

R430 100K D(0) 11 D(1) 12 D(2) 13 D(3) 15 D(4) 16 D(5) 17 D(6) 18 D(7) 19

VDD A0 A1 U403 A2 A3 NU A4 SRAM A5 A6 D1 A7 D2 A8 D3 A9 D4 A10 D5 D6 A11 D7 A12 A13 D8 A14

A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7) A(8) A(9) A(10) A(11) A(12) A(13) A(14)

C445

C440

C441

C442

C443

C444

C401

.01uF

0.1uF

R440 4.7K

.01uF

200K 1% R421 100K 1%

C422

D424 3V

.01uF

RED LED

D440 BRPY1204W

20 CS 22 OE 27 WE VSS 14

A(18)

0.1uF

VOLUME

R442 220

SW_B+ C447

R441 4.7K

Q440-2

C420

Q440-1 5

10 9 8 7 6 5 4 3 25 24 21 23 2 26 1

C446

SW_B +

A(17) R434

PE0_AN0 PE1_AN1 PE2_AN2 PE3_AN3 PE4_AN4 PE5_AN5 PE6_AN6 PE7_AN7

67 66 65 64 63 62 61 60

BOOT_ENA

R420

24 R432

NC NC

71 72 73 74 75 76 77 78

D414

D3_3V

8 VCC 30 EN_CE 32 EN_OE 7 EN_WE RESET 9

AT49LV001N_70VI

D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)

U401 MC68HC11FL0

A(7) A(6) A(5) A(4) A(3) A(2) A(1) A(0)

D(7:0) D3_3 V

VDDSYN 92 XFC 93

PH0_PW 1 PH1_PW 2 PH2_PW 3 PH3_PW 4 PH4_CSI O PH5_CSGP1 PH6_CSGP2 PH7_CSPROG

22 23 24 25 26 27 28 29

DISP_ENA

47 46 45 44 43 42 41 38

PJ0_CSGP3 PJ1_CSGP4 PJ2 PJ3 PJ4 PJ5 PJ6 PJ7

VSS VSSR VSSL AVSS

RESET

89 96 NC 48 94 4 58 57

13 87 40 70

Q402 3

ECLK IRQ XIRQ RESET PG7_R_W MODA_LIR MODB_VSTBY

PI 7 PI6 PI5 PI4 PI 3 PI 2 PI1 PI0

R446 10K

49 50 51 52 53 54 55 56

PG0_XA13 PG1_XA14 PG2_XA15 PG3_XA16 PG4_XA17 PG5_XA18 PG6_AS

PB5_ADDR13 PB4_ADDR12 PB3_ADDR11 PB2_ADDR10 PB1_ADDR9 PBO_ADDR8

Q403

6 16 20 19 17 18 5

1000pF

NC NC

A(13)15 A(12) 21 A(11) 9 A(10) 11 A(9) 10 A(8) 14

BACKLIGH T

PA7_PA1_OC1 PA6_OC2_OC1 PA5_OC3_OC1 PA4_OC4_OC1 PA3_IC4_OC5_OC1 PA2_IC1 PA1_IC2 PA0_IC3

SW_B + 3

PF7_ADDR7 PF6_ADDR6 PF5_ADDR5 PF4_ADDR4 PF3_ADDR3 PF2_ADDR2 PF1_ADDR1 PFO_ADDR0

NC A(14) A(15) A(16) A(17) A(18)

R414 33K

R415 33K

F1200

7 PB7_ADDR15 8 PB6_ADDR14

SYNTH_CS

PD6_LVIN 3 PD5_SS 2 PD4_SCK 1 PD3_MOSI 100 PD2_MISO 99 PD1_TXD 98 PD0_RXD 97

NC ASFIC_CS

R413 100K

R443 120

RB520S-30 R424

D3_3V

200K 1%

GREEN LED

C421 R422 100K

R423 100K

.01uF

BATT_DETECT

R425 100K 1%

RSSI VO X KEYPAD_CO L KEYPAD_RO W LOCK VS_INT VS_CS OPT_ENA TX_ENA RX_ENA

Figure 11-23. UHF (438-470 MHz) PCB 8486348Z13-C Controller Interconnect Schematic Diagram November 24, 2003

HKLN4216A

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

11-31

R516

R523

C512

10K

C514

6.8pF

R522

16pF

100K

R514

R512 150K

LM2904 R511

100K

DEMOD

Q520 8 1

R513

R515

IMX1

C518 6

IMX1

C460

0.1uF

VR471

C511

C513

R518 220K

220pF

R519 100K

C519

R470

OPT_RX_AUD_SEND_DETECTO R

5V_A

Audio

Q520

5V_A

100K

U510-1

U510-2

0.1uF

2.2K

OPT_RX_AUD_RETURN

LM2904 R521 NU

R520 100K

3V_A

NC OPT_RX_AUD_SEND_UNMUTED

R480 0

OPT_TX_AUD_FLAT_RETURN R517 OPT_TX_AUD_SEND

1uF

OPT_TX_AUD_RETURN VS_AUDIO_SEL VS_GAIN_SEL

3V_A

PWR_SET VOX

3V_A 0.1uF

C452 0.1uF

R462 24K

0.1uF 4.7uF 10 V

SQCAP VDDDAC UIO SQIN PLCAP VOX DACG DACR DACU GND A DISC VDDA

12 11 10 9 8 7 6 5 4 3 2 1

C455 .022uF

CH_ACT

13 14 15 16 17 18 19 20 21 22 23 24

SQ_DET LSIO HSIO ASFIC_CS

GCB2 GCB1 GCB0 CHACT SQDET LSIO HSIO CSX CLK DATA GND SYN LCAP

U451 30C53

C456

SPI_DATA_OUT

0.1uF

Not Placed

R517

Not Placed

R463

30K

24K

3V_A

R451 47K

Q472

2.2K

Q471 3

5V R474 330

C464

C465

C471

0.1uF

1000pF

2.2uF

1 R476 100K

4 5

Q470

2 3

D470

2.2K

A_MOD_OUT

L471 390nH C474

C473

150pF

J471 ACCESSORY CONNECTOR

5 S4

.022uF

0.1uF

1000pF

1 M1

2.2K

C493

3 M3

J470-1

R478 C478

C476

J491-1 INTERNAL SPEAKER

.022uF 150pF

R494 C494 330K 2.2uF

7 S1 2 M2

VR474 MMBZ5250B 20V

C475

VR475 15V MMBZ5245B

SW_B+

6 S3

SCI

VR473 20V MMBZ5250B NC

C458

BOOT_ENA

4 S2

R479 100K

C466

OPT_MIC

EXT_MIC_PTT

MOD_OUT

RESET

0.1u F

BATT_CHARGE

R475 180K R477

C472 0.1uF

R255 3.9K 1%

0.1uF

R473 680

C477

MICROPHONE CONNECTOR

E451

2 16_8_MHZ

BK1005HM471

C459 F1200 0.1uF uP_CLK

5V_B

C481 .01uF

E452 BK1005HM471 5V

E453

5V_A 2

5V BK1005HM471

C497

5V_B

C482 .01uF

Not:Placed:NU 3

Q481 Not_Placed:NU 1

0.1uF R486 100K Not_Placed:NU

R483 150K Not_Placed:NU

R487 0

5V_B 8

2 3

C499 82pF

C483 0.1uF

R484 2.2K

Not_Placed:NU

C484

U480-1

R485 100K 1

Q490

R492

24K

R490 2.2K Not_Placed:NU

Not_Placed:NU .033uF

LM2904 Not_Placed:NU

R491

DC Level 0.3 - 0.4 V low Supply = 7.42 1/2 Supply = 3.22 1 3 2 4

C488

VCC

C480

R469

0.1uF

3 J491-3

470pF

U490

TDA854 MODE 5 INPOS OUTNEG SVR OUTPOS 8 INNEG

C479 150pF

GN D

4 J491-4

C489 1

470pF

7 C492

R496 10K Not_Placed:NU

R497 1MEG

10uF

Q482

Not_Placed:NU

R493 330K

R516

1200pF

R482 330K

0.1uF

Not_Placed:NU

Not Placed

0.1uF

Not_Placed:NU

R515

C467

R481 100K

UHF 100k

3V_A

C463

R464

Not_Placed:NU

VHF

48 NC 47 46 45 44 43 42 41 40 39 38 37 NC

C462

1 2

R471

C457

Not Placed

0.1uF

25 26 27 28 29 30 31 32 33 34 35 36

SPI_CLK

R513

MICEXT GNDRC MICINT VDDRC TXSND RXRTN AUXTN AUDIO MOD RXSND GCB5 GCB4

PLCAP2 NC VDDSYN SYN F1200 GNDDO GNDD VDDCP VDDD CLK168 GCB3 TXRTN

BW_SEL

1000pF

VR472

D471

C454

5V_A

C453

C470

R460 24K

C451

R472 680

C461

5V_B

Not_Placed:NU

UMG5 1 5V_B

C490 470pF

R498

U511

2 3

R488 330K

C495

UMG5 4

1uF

D491

47 K

8 7

6 5

C496 1uF

U480-2

NC Not_Placed:NU

R499 270K Not_Placed:NU

LM2904 Not_Placed:NU

R489 91K Not_Placed:NU

2 3

R495 5.6K C498 1uF

Figure 11-24. UHF (438-470 MHz) Microprocessor Circuitry Schematic Diagram HKLN4216A

November 24, 2003

11-32

UHF 438-470 MHz Schematic Diagrams, Overlays, and Parts Lists

DC Regulation USWB+

POS NEG DATA

U310 TK71750S

VR301 MMBZ5250B

F301

J301

C301

D301

390pF

20V

C303

C304

33uF

.01uF

1 VIN 5 VOUT 3 CTRL 4 BYPASS GND 2 C310 .01uF

5V C311

C312

C313

.018uF

10uF

.01uF

Q311 5R

D3_3V BATT_CHARGE

C314

VR302 MMBZ5250B

C302

C305

C306

390pF

100pF

.01uF

1200pF

NC R313 10K

20V

R312 20K

R310 100K

Q313

C315

RX_ENA

1200pF

Q312

TP302 TX_ENA

5T R311 100K

D3_3V

R506 100

1200pF 2

VOLUME

SWB+

R508 100K

R509 100K

RESET

TAB2

TAB1

LOW

R507 100

C316

Q493

S444 SWITCH 3 HIGH 4

C323 R322 100K

Q494 R510

LP2986

330K

ON_OFF

D3_3V

U320

150pF

NC NC

4 INPUT OUTPUT 5 8 SHUTDOWN 3 SENSE ERROR 7 6 TAP FEEDBACK 2 GND

D3_3V C320 .018uF

R320 330K 1%

C321

C322

10uF

.01uF

R321 200K 1%

U330 TK71730S

C331

1 VIN VOUT 5 3 CTRL 4 BYPASS GND 2

3V C334

C333

10uF

.01uF

Figure 11-25. UHF (438-470 MHz) PCB 8486348Z13-C Audio Circuitry Schematic Diagram November 24, 2003

HKLN4216A

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

J2 MAIN BOARD CONNECTOR J2-9 J2-16 J2-17 J2-10 J2-1 J2-2 J2-3 J2-4 J2-6 J2-13 J2-14 J2-15 J2-18 J2-19 J2-12 J2-21 J2-22 J2-23 J2-24 J2-25 J2-26 J2-27 J2-5 J2-7 J2-8 J2-2 J2-11 J2-20

9 16 17 10 1 2 3 4 6 13 14 15 18 19 12 21 22 23 24 25 26 27 5 7 8 8 11 20

11-33

J1 DISPLAY MODULE CONNECTOR

KEYPAD

LEDBL

DATA CLK LCD_SEL NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC

C1 150pF

C3 150pF

C6 150pF

C8 150pF

DNF

R1 100K

Vddd R6 100K

Vddd

150pF

0.1uF

R10

13K

22 K

43 K

130K

J2-29 G1 J2-30 G2

9 8 7 6 5 4 3 2 1

J1-9 J1-8 J1-7 J1-6 J1-5 J1-4 J1-3 J1-2 J1-1

LEDBL GND GND GND DATA CLK LCD_SEL GND VDDD

G1 J1-10 GND G2 J1-11 GND

R2 13 K S18 SWITCH 1 1 2 3

S17 SWITCH 2 1 2 3

S2 2 SWITCH 6 1

2 3

S2 3 SWITCH 5 1 2 3

S2 5 SWITCH 8 1 2 3

S26 SWITCH 9 1 2 3

S2 7 SWITCH 0 1

COL ROW

NC NC

REF

Vddd

150pF DNF

STD

LIMITED KEYPAD

NOT PLACED

R10

NOT PLACED

S19 SWITCH 3 1

2 3

1 2 3

S20 SWITCH UP

R3 22 K

S24 SWITCH 4 1

R4 43K

R5 130K

S21 SWITCH 7 1 2 3

2 3

S28 SWITCH 1 2 3

2 3

LEDBL D3

NOT PLACED

R13

NOT PLACED

R14

NOT PLACED

R15

NOT PLACED

S2 9 SWITCH # 1 2 3

S3 0 SWITCH DOW N 1 2 3

S31 SWITCH F1 1 2 3

QSMG-H799 D2

D10

R11 470

D11

D3 QSMG-H799

QSMG-H799

S32 SWITCH F2 1 2 3

D1 QSMG-H799

D4 QSMG-H799

D5 QSMG-H799 D6 QSMG-H799

D7 QSMG-H799 D8 QSMG-H799

QSMG-H799 R12 470

R1 3 330

R14 330

R15 33 0

Figure 11-26. UHF (438-470 MHz) DC Regulation Schematic Diagram HKLN4216A

November 24, 2003

11-34

UHF 438-470 MHz Schematic Diagrams, Overlays, and Parts Lists

D301 C478 J470

C489

R483

VR301

L471

D470

R481 C482 4

VR475

U480 5

8 R482

VR473

R489

C301

R63

VR302

2 3

R61

E452

1 C

VR110

S440

C306

2 J301

Q280

L283

L281 2 C92

C91

C116 C113 3

L2 C3

C117

J140

C10

CR1

M140

C523

S442

S443

U110

C12 C4

C522 SH1 C21 C11 C28 C521 R24 R25 L21 C25 C23 R22 Q21

C47

L31

L55

C36

C32 C46 C33

C230

C233

L33

C34

C29

C38

C27

C30

C39

C48

C31 L32

L34

C35

C524 C37

C241

C217

C201

Q171

3 Y70

C284

C216

C231

R469

C476

C69

C282

R280

C240

37 C205

C473

C305

R282 SH253

R283

R212

C212

U201

SH201 C214 C202

R205 R221 R220

C219

C218

C215

C232

C412

R417

C419

R410 C413

C418 R419

R223 C208 C209

R431

C410

C432

C207

C210

R400

C400

C433

R504 C406

C505

R247

C204

C503

R230

C409

C408 C506

R243

C244

R496

S444

C480

R281

C283

R245

L211

C213

U404

C507

C407

U403

R244

C245

SH401

C404

C403

C243

U52 8

C281

R285

C402 C504

5 C302

4 5

C286

C446

C252

L251

Q403

D251

C488

J471

F301

C254

C253

L252

C251

R442

C263 D261

U402

L262

L254

R261 R262

C268

C265

FL54

C257

C255 D262 SH250

C264

C422 C421

R425

R443

Q440

Q402 R445 R446 C500

C430 C431

C266

L264

L255

R253 C256

C267

13 C455

R424

R254

R263

1 D424

D471

VR472

C461

R521

R471

R503

R264 L265

FL53

R463

R514 R513

Q472

C477

VR471

4 U451

C460

R462

7 6

C454

C470

R472

R522

C513

C303

R414

C501

E500

R470

R473

R480

C458

C465

S441

Figure 11-27. UHF (438-470 MHz) PCB 8486348Z13-C Keypad Option Schematic Diagram November 24, 2003

HKLN4216A

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

11-35

C141 D440 3 D491 R498

4 Q490 3 R494

R508 Q493

Q481 C481

R509

R484

R311

C314

R310

TP404

R485

Q482

R495

VR474

Q312 R312

C484

R490

C311

R487

C483 R491 R486

R493

R497

3 U511 4

R492

U490 5

R488

C490

C498

C105

C479

J491

C316

L103

R104

C108

R477

C499

R499

C496

C492

R474

R476

R475

Q470

FL52

3 4

C137

C107

Q100 2 3

C101

C104

R478

C82

C475

R82

R62 R60

D51

C472

C313

U310

U320

R320

C315

Q313 Q311

TP150

C102

R479

R255

C133

R111

C106

R106

R105

C112

L100

C474

C61

R313

SH100

L110

C111

L101

C154

Q170

L102

C173

R110 R107

C103

L131

1 C109

C120 R103

R81 L81

R162

4 U150

C153

R156

C156 C159 C114

L141

L132

L130

R157

3 4

C64

R153

R100 R102

C65

R158

C171

R101 C100 2

C62

C63 C74

C170 C172

C66 C67

C150 R152

R155

Y51

SH50

C334

C331

U330

C323

C320

C322

R321

E453

C457

R451

C456

R322 R506

C131

C115

C155

C471

C310 C312

Q150

C80 R80

C333

C271

C151

C81

R57

D52

C41

C304

L272

E451 C321

L270

R272

R91

L54

R77

R67 R64

C60

R65 C68 R66

C42

R271

C451

C270 C273

R90

R72

R40

L40

R76

U51 C45

L41

C43

R277

R273

L282

C292

Q70

C44

C73 R78 R75 R74

C72

TP1

R284 C285

R274 L271

C466 C497

C70 R73 T42

C90

C274

C275

C452

L291

U251

C272 R275

L292

10 SH251

11 C276

C453

C463

TP200

TP240

L276

R412 C416

R516 R511

C291 C290

C71

3 4

R276

C13 SH40

R246

C445

C411

R518

C518 C514

C415

C442 C443

C462

C444

D414

R464

TP403

U510 5

R415

C464

R517 R460 R515

C519

R519

R512

C459

TP301

C511

C414

R421 C420

C512

R418

R422

R420

C401 C467

Q520 3 4

R423

C447

R523

R520 Q471

R441

R440

28 30

C405 R505

C440 C441

CR41 TP2

R202

C226

C225

R413 R430

SH400

J460

U401

C203

D201

R154

C152

C14 C211

C158

L140 C135

C132

R151

C228

D120

C59

C136 C134

C123

C122

C157

R150

C58

D121

L121

R120

Q51

R55

C130

C56

C57

L120

U151

R227 C227

R121

CR51 R54

R53

C93

L53

SH52

T41

R23

Q22

C99

SH200

C20

C26 R21

L52

R51

4 6

Y202

C224

C55

FL51

Y201

C223 D221

R501 26

R52 2

C49

C221

C124

C121

C52 C53

C51

D220

R502

C222

L51 2

Q410

R433

C206 R206

C220

R411 4 3

TP302

R434 R432

TP405

TP401

TP402 C417 R416

R20

R510

C495

R507 4 Q494 3

C493 C494

Figure 11-28. UHF (438-470 MHz) Board Component Side View HKLN4216A

November 24, 2003

11-36

UHF 438-470 MHz Schematic Diagrams, Overlays, and Parts Lists

C7 1

R11

G2 9

D1 D6

g2 R9

D11

R10

R6 R1 R7

R8 D7

D10

R15 R14 D2

R13 R12

R4 R3

Component Side

Solder Side

Figure 11-29. UHF (438-470 MHz) PCB 8486348Z13-C Board Solder Side View November 24, 2003

HKLN4216A

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

UHF (438-470 MHz) Radio Parts List

Motorola Part No. 2109445U36 2109445U37 2109445U07 Not_Placed 0662057M01 2109445U07 Not_Placed 0662057M01 2109445U37 2109445U34 2113743N30 2109445U25 2109445U07 2109445U07 2113743L07 2113743L07 2113743L07 2113743L07 2113743L07 2109445U32 2109445U27 2109445U23 2109445U40 2109445U23 2109445U22 2109445U41 2109445U22 2109445U31 2109445U39 2109445U31 2109445U26 2109445U26 2113743N23 2113743N31 2113743N33 2113743N24 2113743N31 Not_Placed Not_Placed 0662057M01 Not_Placed 2113743N48 2113743N28 2109445U26 2113743M24 2113743E20 2113743M24 2113743N16 2113743N12 2113743M24

HKLN4216A

Description CAP, 13pF CAP, 15pF CAP, 1.5pF CAP, 20pF RES, 0 CAP, 1.5pF CAP, 22pF RES, 0 CAP, 15pF CAP, 11pF CAP, 15pF CAP, 8.2pF CAP, 1.5pF CAP, 1.5pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 8pF CAP, 10pF CAP, 6.8pF CAP, 20pF CAP, 6.8pF CAP, 6.2pF CAP, 22pF CAP, 6.2pF CAP, 7pF CAP, 18pF CAP, 7pF CAP, 9.1pF CAP, 9.1pF CAP, 7.5pF CAP, 16pF CAP, 20pF CAP, 8.2pF CAP, 16pF CAP, 10pF CAP, 10pF RES, 0 CAP, 3.9pF CAP, 82pF CAP, 12pF CAP, 9.1pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 3.9pF CAP, 2.7pF CAP, 0.1uF

Motorola Part No. 2113743N46 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743N53 2113743E20 2113743M24 2113743L33 2113743N42 2109445U41 2109445U45 2109445U41 2113743M24 2311049A57 2113743E20 Not_Placed 2113743M24 2113743L07 2113743M24 2113743M24 2113743L07 2113743N26 2113743N16 2113743L07 Not_Placed 2113743L07 2113743M24 2113743L07 2113743M24 2113743L07 2113743L07 2311049A07 2113743M24 2113740F65 Not_Placed 2113743L07 2113740F20 2113740F17 2113743L07 Not_Placed Not_Placed 2113740F23 Not_Placed 2113740F23 Not_Placed 2113740F18

11-37

Description CAP, 68pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 130pF CAP, 0.1uF CAP, 0.1uF CAP, 4700pF CAP, 47pF CAP, 22pF CAP, 33pF CAP, 22pF CAP, 0.1uF CAPP, 10uF CAP, 0.1uF CAP, 3.6pF CAP, 0.1uF CAP, 390pF CAP, 0.1uF CAP, 0.1uF CAP, 390pF CAP, 10pF CAP, 3.9pF CAP, 390pF CAP, 27pF CAP, 390pF CAP, 0.1uF CAP, 390pF CAP, 0.1uF CAP, 390pF CAP, 390pF CAPP, 1uF CAP, 0.1uF CAP, 390pF CAP, 8.2pF CAP, 390pF CAP, 5.1pF CAP, 3.9pF CAP, 390pF CAP, 3.3pF CAP, 2.2pF CAP, 6.8pF CAP, 2.7pF CAP, 6.8pF CAP, 0.5pF CAP, 4.3pF

Circuit Ref C137 C141 C150 C151 C152 C153 C154 C155 C156 C157 C158 C159 C170 C171 C172 C173 C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C221 C222 C223 C224 C225 C226 C227 C228 C230 C231 C232 C233 C240 C241 C243

Motorola Part No. 2113740F59 Not_Placed 2113743L07 2113743L07 2113743L07 2113743K18 2113743L07 2113743E20 2113743L41 2113743M24 2113743L07 2113743L07 2113743L07 2113743L07 2113743L07 2113743L07 2113740F59 2109445U52 2109445U13 2113743L09 Not_Placed Not_Placed 2113743L09 2113743L09 2113743L09 2113743L09 2113743E20 2113743F18 2113743L41 2113743L17 2113743F18 2113743E20 2113743L17 2113743F18 2113743E20 2113743N34 2113743L41 2113743L41 2113743L41 2113743L41 2311049A57 2311049A57 2113743L17 2113743E20 2113743F18 2113743L17 2113743E20 2311049A56 2113743N06 2113743N50 PT08MTPB49

Description CAP, 220pF CAP, 8.2pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 0.47uF CAP, 390pF CAP, 0.1uF CAP, .01uF CAP, 0.1uF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 220pF CAP, 62pF CAP, 2.7pF CAP, 470pF CAP, 2.7pF CAP, 1000pF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 0.1uF CAP, 2.2uF CAP, .01uF CAP, 1000pF CAP, 2.2uF CAP, 0.1uF CAP, 1000pF CAP, 2.2uF CAP, 0.1uF CAP, 22pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAPP, 10uF CAPP, 10uF CAP, 1000pF CAP, 0.1uF CAP, 2.2uF CAP, 1000pF CAP, 0.1uF CAPP, 4.7uF CAP, 1.3pF CAP, 100pF CAP, 0.1uF

Circuit Ref C244 C245 C251 C252 C253 C254 C255 C256 C257 C263 C264 C265 C266 C267 C268 C270 C271 C272 C273 C274 C275 C276 C281 C282 C283 C284 C285 C286 C290 C291 C292 C301 C302 C303 C304 C305 C306 C310 C311 C312 C313 C314 C315 C316 C320 C321 C322 C323 C331 C333 C334

Motorola Part No. 0888600M25 2311049A08 0888600M03 Not_Placed 2109445U22 2109445U20 2109445U21 2109445U17 2109445U35 2109445U19 2109445U10 2109445U15 2109445U12 2109445U24 2109445U01 2113743L07 2113743L07 2113743E20 2113743L41 2113743E20 2113743L07 2113743N22 2113743L07 2113743N14 2113743L07 2113743L07 2113743E20 2113743N21 2113743N22 2113743N32 2113743L07 2113743L07 2113743L07 2311049A97 2113743L41 2113743N50 2113741F49 2113743L41 2113743E05 2311049A57 2113743L41 2113743L19 2113743L19 2113743L19 2113743E05 2311049A57 2113743L41 2113743N54 2113743L41 2113743L41 2311049A57

Description CAP, .01uF CAPP, 1uF CAP, 150pF CAP, 390pF CAP, 6.2pF CAP, 5.1pF CAP, 5.6pF CAP, 3.9pF CAP, 12pF CAP, 4.7pF CAP, 2pF CAP, 3.3pF CAP, 2.4pF CAP, 7.5pF CAP, 0.5pF CAP, 390pF CAP, 390pF CAP, 0.1uF CAP, .01uF CAP, 0.1uF CAP, 390pF CAP, 6.8pF CAP, 390pF CAP, 3.3pF CAP, 390pF CAP, 390pF CAP, 0.1uF CAP, 6.2pF CAP, 6.8pF CAP, 18pF CAP, 390pF CAP, 390pF CAP, 390pF CAPP, 33uF CAP, .01uF CAP, 100pF CAP, .01uF CAP, .01uF CAP, .018uF CAPP, 10uF CAP, .01uF CAP, 1200pF CAP, 1200pF CAP, 1200pF CAP, .018uF CAPP, 10uF CAP, .01uF CAP, 150pF CAP, .01uF CAP, .01uF CAPP, 10uF

November 24, 2003

11-38

Circuit Ref C400 C401 C402 C403 C404 C405 C406 C407 C408 C409 C410 C411 C412 C413 C414 C415 C416 C417 C418 C419 C420 C421 C422 C430 C431 C432 C433 C440 C441 C442 C443 C444 C445 C446 C447 C451 C452 C453 C454 C455 C456 C457 C458 C459 C460 C461 C462 C463 C464 C465 C466

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

Motorola Part No. Not_Placed 2113743M24 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2311049A57 2113743M24 2113743L17 2113743M24 2113743M24 2113743L17 2113743L17 2113743L17 2113743M24 2113743L17 2113743L41 2113743L41 2113743L41 2113743M24 2113743L17 2113743M24 2113743L17 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743M24 2113743M24 2113743E20 2113743E20 2113743E20 2113743L48 2113743E20 2113743E20 2113743E20 2113743E20 2113743E20 2113743L17 2113743E20 2113743E20 2113743E20 2113743L17 Not_Placed

November 24, 2003

Description CAP, .022uF CAP, 0.1uF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAPP, 10uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 0.1uF CAP, 1000pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 1000pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, .022uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 470pF

Circuit Ref C467 C470 C471 C472 C473 C474 C475 C476 C477 C478 C479 C480 C481 C482 C483 C484 C488 C489 C490 C492 C493 C494 C495 C496 C497 C498 C499 C500 C501 C503 C504 C505 C506 C507 C511 C512 C513 C514 C518 C519 C521 C522 C523 C524 CR1 CR41 CR51 D51 D52 D120 D121

Motorola Part No. 2113743L19 2113743E20 2113743F18 2113743E20 2113743N54 2113743N54 2113743L48 2113743L48 2113743M24 2113743N54 2113743N54 2113743E20 Not_Placed 2113743L41 2113743E20 Not_Placed 2113743L09 2113743L09 2113743L09 2113743F18 2113743L17 2113743F18 2113743F16 2113743F16 2113743E20 2113743F16 2113743N48 2113743L17 2113743F16 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2113740F59 2113743N22 2113740F59 2113743N31 2113743E20 2113743F16 2113743N20 2113743N01 2186463Z09 2186463Z01 4813825A19 4802246J04 4813825A19 4802245J97 4802245J97 4880973Z02 4880973Z02

Description CAP, 1200pF CAP, 0.1uF CAP, 2.2uF CAP, 0.1uF CAP, 150pF CAP, 150pF CAP, .022uF CAP, .022uF CAP, 0.1uF CAP, 150pF CAP, 150pF CAP, 0.1uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, .033uF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 2.2uF CAP, 1000pF CAP, 2.2uF CAP, 1uF CAP, 1uF CAP, 0.1uF CAP, 1uF CAP, 82pF CAP, 1000pF CAP, 1uF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 220pF CAP, 6.8pF CAP, 220pF CAP, 16pF CAP, 0.1uF CAP, 1uF CAP, 5.6pF CAP, 0.5pF CAP, 0.4pF CAP, 0.2pF MMBD352 HSMS2829 MMBD352 DAN235ETL DAN235ETL MA4PH261 MA4PH261

Circuit Ref D201 D220 D221 D251 D261 D262 D301 D414 D440 D470 D471 D491 E451 E452 E453 E500 F301 FL51 FL52 FL53 FL54 J140 J301 J460 J470 J471 J491 L1 L2 L3 L21 L31 L32 L33 L34 L40 L41 L51 L52 L53 L54 L55 L81 L100 L101 L102 L103 L110 L120 L121 L130

Motorola Part No. 4862824C03 4802233J09 4802233J09 4862824C01 4862824C01 4862824C01 4813833A19 4805129M41 4805729G49 4809924D18 4809924D18 4805129M41 2480640Z01 2480640Z01 2480640Z01 2480640Z01 6580542Z01 9180022M11 9180468V05 9180469V05 9180469V03 0986428Z01 0986237A02 Not_Placed 0985818A01 0980683Z03 2809926G01 2409348J15 2409348J15 2409348J15 2413926N16 2409348J15 2409348J15 2409348J15 2409348J15 2413926K16 2413926K16 2413926N26 2413926K33 2113743N52 2413923A25 2413926N15 2462587N68 2413926K27 2413926K27 2409377M21 2409377M24 2413926K27 2413926K27 2462587V24 2460591C40

Description 1SV232 IMN10 IMN10 1SV229 1SV229 1SV229 MBRM120ET3 MMBD501 BRPY1204W RB520S-30 RB520S-30 MMBD501 BK1005HM471 BK1005HM471 BK1005HM471 BK1005HM471 FUSE MXF45 FLTR CFWC455E CFWC455G CONN_J CONN_J CONN_J CONN_J CONN_J CONN_P IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 22nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 27nH IDCTR, 27nH IDCTR, 150nH IDCTR, 680nH CAP, 120pF IDCTR, 1.2uH IDCTR, 18nH IDCTR, 1uH IDCTR, 220nH IDCTR, 220nH IDCTR, 3.6nH IDCTR, 5.1nH IDCTR, 220nH IDCTR, 220nH IDCTR, 15nH IDCTR, 17.02nH

Circuit Ref L131 L132 L140 L141 L211 L251 L252 L254 L255 L262 L264 L265 L270 L271 L272 L276 L281 L282 L283 L291 L292 L471 M140 Q21 Q22 Q51 Q70 Q100 Q150 Q170 Q171 Q280 Q311 Q312 Q313 Q402 Q403 Q410 Q440 Q470 Q471 Q472 Q481 Q482 Q490 Q493 Q494 Q520 R20 R21 R22

Motorola Part No. 2460591C40 2460591C40 2113740F42 2479990M01 2413926K30 2413926N28 2413926N17 2484562T11 2413926N28 2413926N17 2484562T11 2413926N28 2413926N28 Not_Placed 2413926N28 2413926N17 2413926N17 2413926N14 Not_Placed 2413926N10 2413926N14 2413926K30 0286427Z01 4802247J01 4805723X02 4802197J95 4880214G02 4885593U03 4880214G02 4809939C34 4880048M01 4802245J95 4809579E18 4809579E18 4802245J54 4880048M01 4813824A17 4802245J54 5180159R01 4805723X02 4802245J54 4805723X02 Not_Placed 4813824A10 4802245J54 4809579E18 4802245J54 4813824A10 0662057M92 0662057M50 0662057M92

Description IDCTR, 17.02nH IDCTR, 17.02nH CAP, 43pF IDCTR, 30.54nH IDCTR, 390nH IDCTR, 220nH IDCTR, 27nH IDCTR, 12.5nH IDCTR, 220nH IDCTR, 27nH IDCTR, 12.5nH IDCTR, 220nH IDCTR, 220nH IDCTR, 220nH IDCTR, 220nH IDCTR, 27nH IDCTR, 27nH IDCTR, 15nH IDCTR, 22nH IDCTR, 6.8nH IDCTR, 15nH IDCTR, 390nH ANTENNA_NUT BFS505 UMT1 PBR941 MMBT3904 BFG540W MMBT3904 EMB10 DTC144EKA BFS540 TP0101T TP0101T UMG5 DTC144EKA MMBT3906 UMG5 IMX1 UMT1 UMG5 UMT1 MMBT3906 MMBT3904 UMG5 TP0101T UMG5 MMBT3904 RES, 5.6K RES, 100 RES, 5.6K

HKLN4216A

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

Circuit Ref R23 R24 R25 R40 R51 R52 R53 R54 R55 R57 R60 R61 R62 R63 R64 R65 R66 R67 R72 R73 R74 R75 R76 R77 R78 R80 R81 R82 R90 R91 R100 R101 R102 R103 R104 R105 R106 R107 R110 R111 R120 R121 R150 R151 R152 R153 R154 R155 R156 R157 R158

Motorola Part No. 0662057N09 0662057M78 0662057M92 0662057M74 0662057M43 0662057N01 0662057N11 0662057M91 0662057M62 0662057M90 0662057M83 0662057N23 0662057M86 0662057N13 0662057N06 0662057N13 0662057N06 0662057N06 0662057M64 0662057M80 0662057M76 0662057N01 0662057V04 0662057U99 0662057M70 0662057M91 0662057M74 Not_Placed 0662057M43 0662057M79 0662057M72 0662057M20 0662057M72 0662057M85 0662057A07 0662057M84 0662057M90 Not_Placed 0662057M70 0662057M81 0662057C55 0662057C55 0680539Z01 0662057A15 0662057V27 0662057V27 0662057V27 0662057V27 0662057M62 0662057M82 0662057M78

HKLN4216A

Description RES, 27K RES, 1.5K RES, 5.6K RES, 1K RES, 51 RES, 12K RES, 33K RES, 5.1K RES, 330 RES, 4.7K RES, 2.4K RES, 100K RES, 3.3K RES, 39K RES, 20K RES, 39K RES, 20K RES, 20K RES, 390 RES, 1.8K RES, 1.2K RES, 12K RES, 12K RES, 8.2K RES, 680 RES, 5.1K RES, 1K RES, 0 RES, 51 RES, 1.6K RES, 820 RES, 5.6 RES, 820 RES, 3K RES, 18 RES, 2.7K RES, 4.7K RES, 300 RES, 680 RES, 2K RES, 150 RES, 150 RES, 0.1 RES, 39 RES, 100K RES, 100K RES, 100K RES, 100K RES, 330 RES, 2.2K RES, 1.5K

Circuit Ref R162 R202 R205 R206 R212 R220 R221 R223 R227 R230 R243 R244 R245 R246 R247 R253 R254 R255 R261 R262 R263 R264 R271 R272 R273 R274 R275 R276 R277 R280 R281 R282 R283 R284 R285 R310 R311 R312 R313 R320 R321 R322 R400 R410 R411 R412 R413 R414 R415 R416 R417

Motorola Part No. 0662057M98 0662057N27 0662057M50 Not_Placed 0662057C01 0662057M49 0662057M49 0662057M50 Not_Placed 0662057N07 0662057M72 0662057M43 0662057M78 0662057N23 0662057N06 0662057M38 0662057M50 0662057U91 0662057N07 0662057M94 0662057M38 0662057M50 0662057M91 0662057M92 0662057M62 0662057M38 0662057M50 0662057M74 0662057B47 0662057M90 0662057M96 0662057M73 0662057M54 0662057M62 0662057M01 0662057N23 0662057N23 0662057N06 0662057N06 0662057V43 0662057V35 0662057N23 Not_Placed 0662057M98 0662057M72 0662057N23 0662057N23 0662057N11 0662057N11 0662057N06 0662057M98

11-39

Description RES, 10K RES, 150K RES, 100 RES, 100 RES, 0 RES, 91 RES, 91 RES, 100 RES, 150K RES, 22K RES, 820 RES, 51 RES, 1.5K RES, 100K RES, 20K RES, 33 RES, 100 RES, 3.9K RES, 22K RES, 6.8K RES, 33 RES, 100 RES, 5.1K RES, 5.6K RES, 330 RES, 33 RES, 100 RES, 1K RES, 0 RES, 4.7K RES, 8.2K RES, 910 RES, 150 RES, 330 RES, 0 RES, 100K RES, 100K RES, 20K RES, 20K RES, 330K RES, 200K RES, 100K RES, 100K RES, 10K RES, 820 RES, 100K RES, 100K RES, 33K RES, 33K RES, 20K RES, 10K

Circuit Ref R418 R419 R420 R421 R422 R423 R424 R425 R430 R431 R432 R433 R434 R440 R441 R442 R443 R445 R446 R451 R460 R462 R463 R464 R469 R470 R471 R472 R473 R474 R475 R476 R477 R478 R479 R480 R481 R482 R483 R484 R485 R486 R487 R488 R489 R490 R491 R492 R493 R494 R495

Motorola Part No. 0662057N23 0662057M90 0662057V35 0662057V27 0662057N23 0662057N23 0662057V35 0662057V27 0662057N23 Not_Placed 0662057M01 0662057N23 Not_Placed 0662057M90 0662057M90 0662057A33 0662057A27 0662057M90 0662057M98 0662057N15 0662057N08 0662057N08 0662057N08 0662057N10 0662057M26 0662057M82 0662057M82 0662057M70 0662057M70 0662057A37 0662057N29 0662057N23 0662057M82 0662057M82 0662057N23 0662057B47 0662057N23 0662057N35 0662057N27 Not_Placed 0662057N23 0662057N23 0662057M01 0662057N35 0662057A96 Not_Placed 0662057M01 0662057N08 0662057N35 0662057V43 0662057M92

Description RES, 100K RES, 4.7K RES, 200K RES, 100K RES, 100K RES, 100K RES, 200K RES, 100K RES, 100K RES, 100K RES, 0 RES, 100K RES, 100K RES, 4.7K RES, 4.7K RES, 220 RES, 120 RES, 4.7K RES, 10K RES, 47K RES, 24K RES, 24K RES, 24K RES, 30K RES, 10 RES, 2.2K RES, 2.2K RES, 680 RES, 680 RES, 330 RES, 180K RES, 100K RES, 2.2K RES, 2.2K RES, 100K RES, 0 RES, 100K RES, 330K RES, 150K RES, 2.2K RES, 100K RES, 100K RES, 0 RES, 330K RES, 91K RES, 2.2K RES, 0 RES, 24K RES, 330K RES, 330K RES, 5.6K

Circuit Ref R496 R497 R498 R499 R501 R502 R503 R504 R505 R506 R507 R508 R509 R510 R511 R512 R513 R514 R515 R516 R517 R518 R519 R520 R521 S440 S441 S442 S443 S444 SH1 SH40 SH50 SH52 SH100 SH200 SH201 SH250 SH251 SH253 SH400 SH401 T41 T42 U51 U52 U110 U150 U151 U201 U251

Motorola Part No. Not_Placed 0662057N47 0662057N15 0662057N33 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057N23 0662057N23 0662057N35 0662057N23 0662057N27 0662057N23 0662057N23 0662057M01 Not_Placed Not_Placed 0662057N31 0662057N23 0662057N23 0662057N23 4080710Z06 4070354A01 4070354A01 4070354A01 1880619Z02 2686421Z01 2686419Z01 2686423Z01 2686424Z01 2686418Z01 2686424Z01 2686423Z01 2686425Z01 2686425Z01 2686422Z01 2686420Z01 2686420Z01 2580541Z02 2580541Z02 5186144B01 5109522E10 0186438Z02 5113818A01 2484657R01 5185963A27 5105750U54

Description RES, 10K RES, 1MEG RES, 47K RES, 270K RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100K RES, 100K RES, 330K RES, 100K RES, 150K RES, 100K RES, 100K RES, 0 RES, 0 RES, 0 RES, 220K RES, 100K RES, 100K RES, 100K SWITCH SWITCH SWITCH SWITCH SWITCH SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD XFMR XFMR SA616 TC7W04F RA07M4452M_UHF LM2904 57R01 63A27 50U54

November 24, 2003

11-40

UHF 440-470 MHz PCB 84863848Z13-C Schematic Diagrams, Overlays, and Parts Lists

Circuit Ref U310 U320 U330 U401 U402* U403 U404* U451 U480 U490 U510 U511 VR110 VR301 VR302 VR471 VR472 VR473 VR474 VR475 Y51 Y70 Y201* Y202

Motorola Part No.

Description

5102478J01 TK71750S 5185963A55 LP2986 5102479J01 TK71730S 5102226J56 MC68HC11FL0 5102463J64 X25128-2.7 Not_Placed SRM2B256 5102480J01 AT49LV001N_70VI 5185130C53 30C53 5113818A01 LM2904 5108858K99 TDA8541 5113818A01 LM2904 4802245J54 UMG5 4813830A86 MM3Z3V9T1 4813830A33 MMBZ5250B 4813830A33 MMBZ5250B 4813830A18 MMBZ5235B 4813830A09 MMBZ5226B 4813830A33 MMBZ5250B 4813830A33 MMBZ5250B 4880140L20 MMBZ5245B 4802245J84 TSS2_44_395MHZ 9186145B02 45B02 4880114R06 14R06 Not_Placed 45J68 * Motorola Depot Servicing only

Circuit Ref J2 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15

Motorola Part No. 0909059E18 0662057A97 NOTPLACED NOTPLACED NOTPLACED NOTPLACED 0662057A97 0662057A76 0662057A81 NOTPLACED NOTPLACED 0662057A41 0662057A41 NOTPLACED NOTPLACED NOTPLACED

Description CONN_J RES, 100K RES, 13K RES, 22K RES, 43K RES, 130K RES, 100K RES, 13K RES, 22K RES, 43K RES, 130K RES, 470 RES, 470 RES, 330 RES, 330 RES, 330

UHF (438-470 MHz) Keypad Board Parts List

Circuit Ref C1 C2 C3 C4 C5 C6 C7 C8 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 J1

November 24, 2003

HKLN4216A

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

11-41

Chapter 11 UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

UHF R3

USWB+

3V USWB +

USWB

3V 5V

USWB +

TX_ENA TX_ENA

PWR_SET 5V

TX_UHF_R3 PWR_SET

DEMOD

BW_SEL

RX_FE_UHF_R3

RX_BE

CONTROLLER RSSI

IF_OUT

IF_IN

RX_IN

RX_OUT TX_INJ

RSSI

RX_INJ

MOD_OUT

MOD_IN

16_8_MHZ

SYNTH_CS

PRESC

VCO_UHF_R3 V_STEER

SYNTH_UHF_R3 SPI_CLK

V_SF

V_STEER V_SF VCO_MOD

SPI_DATA_OUT

TX_INJ TRB

LOCK

RX_INJ

SPI_CLK VCO_MOD

SPI_DATA_OUT

PRESC

TRB

LOCK

Figure 11-30. UHF (465-495 MHz) Radio Circuit Block Diagram HKLN4216A

November 24, 2003

11-42

UHF 465-495 MHz Schematic Diagrams, Overlays, and Parts Lists

Chapter 11 UHF 465-495 MHz Schematic Diagrams, Overlays, and Parts Lists UHF R3 Front End

FE_5R 5R

1 SH1 SHIELD

SH40 SHIELD

C26

R21 91

R20 5.6K

390pF

Q22 UMT1

C20 1

C25 6

390pF

R23 27K

L55 22nH

C99 0.1uF R22 5.6K C23

C521

R24

4.2V

C523

IF 1 RX_IN C1 8pF 1.25%

1.1% 9.1pF L1 9.85nH 2%

4.3pF 2.3%

1.25% 8pF

10pF 1.0%

6% 0.5pF

1.3% 7.5pF

C12

L2 9.85nH 2%

2.3% 4.3pF

9.1pF 1.1%

CR1

C11

1.6% 6.2pF

L3 9.85nH 2% 1

C10

1.2K

0.79V

C522 3

C21

3.7% 2.7pF

0.5pF

Q21

1% 68pF

390pF

BFS505 R25 5.6K

L21 33nH

2.7pF 3.7%

390pF

FE_IF_OUT

L52

IF_OUT

680nH R51 51

C524

C28

C27 8.2pF 1.2%

1.0% 10pF

C29

C31

1.8% 1.6% 5.6pF 6.2pF C30 C4 6 L31 9.85nH 16pF NU 2% 1%

C35

C34

C32

C38

C37

1.2% 1.6% 6.2pF 8.2pF C36 L33 9.85nH 18pF 2% 1%

1.6% 1.6% 6.2pF 6.2pF C33 C47 L32 9.85nH 24pF NU 2% 1%

C51

L51 150nH

6% 0.5pF

2% 5.1pF L34 9.85nH 2%

C48

T41

0 C39

C49

2.7pF 3.7%

82pF

C13 3 6.7% 1.5pF

2 C14

RF BALUN 5 NC

6.7% 1.5pF

1 IO1 3 4

T42

IO3

IO4

3 IO2 2

C42

FE_RF_IN J RX_IN J C41 10pF 1.0%

1.2% 8.2pF

L40

L41

27nH

27nH C43 20pF 1%

C44 1.1% 9.1pF

6 C45 15pF 1%

R40 1K

1 IF BALUN 5 NC

CR41 HSMS2829

1 TP1

TP2 1

Figure 11-31. UHF (465-495 MHz) PCB8486634Z02-O Receiver Front End Schematic Diagram November 24, 2003

HKLN4216A

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

11-43

RX Back End (Overtone)

C68

U52-1 TC7W04F

FL53 CFWC455E

R65 39K

0.1uF

R66 20K

OUT 2

0V for 12.5kHz

C69 R63 39K

D51

0.1uF

1 IN

SH50 SHIELD

8 U52-4 PWR_GND

SH52 SHIELD

GND

3 2

C74

R62 3.3K

VCC

OUT 2

R67 20K GND1

U52-3 TC7W04F

D52

R64 20K

FL54 CFWC455G

R60 2.4K

1 IN

4 C63

C62

FL52 FLTR 9180468V04

0.1uF

OU T 2 C64 GND

C66

C65

0.1uF

47pF

C67

C61

0.1uF

R72 390

0.1uF

Q70

C91

0.1uF

10uF

1 RFIN 2 RFIN_DEC

51 C90

C92 0.1uF

R53

FL51 MXF45 44.85MHz

0.1uF

R54 5.1K

OUT 6

3 IN C52 18pF C53 9.1pF 1.1%

0.74V 120pF C93

GND2

2 CC1 5 CC2

GND1

IF_IN

3.6pF NU

C57

3.9pF C59

0.1uF

2.7pF

L53

IF_IN

C58

3.05V

33K C55

R52 12K

Q51

CR51

L54 1.2uH 2%

SA616

LIMOUT 11 GND

C70

R73 1.8K

130pF

R74 1.2K Y70 45B02 455KHz 1

R57 4.7K

2 3

C81

C80

R80 5.1K

33pF 1%

PBR941 1

U51

C71 0.1uF

C60 0.1uF

VCC

9 RSSI_FEED

10 QUADIN

R90

LIMIN 14 LIM_DEC1 13 LIM_DEC2 12

5 RSSIOUT

R55 330

0.1uF

7 AUDIO_FEED 8 AUDIOOU T

C56

IFAMP_DEC1 IFAMPI N IFAMP_DEC2 IFAMPOUT

1.6K

3 OSCOUT 4 OSCIN

3.39V

19 18 17 16

MMBT3904

R91

MIXOUT 20

IF_5V

47pF

GND2

BW_SE L

TC7W04F

5V for 25kHz

GND2

U52-2

R61 100K IF_BAND_SEL

GND1

R75

IF_RSSI

2.1V When -47 dBm @ antenna

RSSI

22pF 1%

C72

12K

0.1uF

4 R81 1K C82

Y51 TSS2_44_395MHZ 44.395MHz 3 OU T

L81 1uH

33pF 1%

R82 NU

GND1 GND 4

1 R76 12K 1%

R77

R78

8.2K 1%

680

IF_DEMOD 1.5V

DEMOD

C73 4700pF

Figure 11-32. UHF (465-495 MHz) Receiver Back End Schematic Diagram

HKLN4216A

November 24, 2003

11-44

UHF 465-495 MHz Schematic Diagrams, Overlays, and Parts Lists

UHF R3 Synthesizer FN_V_SF

4.5V

R230 20K

R247 18K

V_SF

C231

C232

C233

1000pF

0.1uF

4.7uF

SH201 SHIELD

SH200 SHIELD

FN_LOCK 6 22 33 44

LOCK

NC NC NC

C241

FN_PRESC

NC NC

42 CCOMP 18 REFSEL

32 PREIN 27 SFBASE 26 SFCAP

PRESC C240 1.3pF 7.7%

100pF

31 NC3 29 NC2 17 NC1

2.2uF NC NC

NC NC

VMULT4 VMULT3 VMULT2 VMULT1

11 12 14 15

R245

C243 TX: 3V RX: 0V

R246 TR B

NC NC

C210

470pF

FN_3V 3V

1 FN_VCO_MOD

C202

C201

62pF 1%

220pF

1uF R205 100

C211 0.1uF

C206

R206

.01uF

OU T

220pF

C202

62pF

C203

2.7pF

C206

0.01uF

R202

150k

47k

R206

100

D201

1SV232

Y201

14R06

Y202

45J68

OU T VCON 16.8MHz GND

R221 22

16_8_MHZ 22pF

C205

C221

.01uF 3V 3 K3 2 K2 1 K1

2 Y202 45J68 NU

C222

A3 4 A2 5 A1 6

.01uF

D220

1 C223 D201

GND1 GND 4

C201

1000pF

TCXO

R220 22 C220

FN_16_8

R202 150K VCC

16.8MHz 2.2uF

Crystal

C245

XTAL2 24 XTAL1 23

C214

TP240

VCO_MOD

390nH

Reference Oscillator

TP200 R244 51

Y201 14R06 C213

.01uF 0888600M25

100K

FN_TRB

L211 C212

NC NC

5 34 20 36 13 47 C209

V_STEER

C244

R243 820

0.1uF

SPI_CL K C208

FN_V_STEER 3.2V to 4.5V

1.5K

FN_CLK

C207

UNLOCK: 0V

470pF

MODOUT 41 FREFOUT 19

PD_VDD PRE_VDD AVDD DVDD VRO VCP

FN_SYNTH_CS SYNTH_CS

TEST2 38 TEST1 37 3 2 1 48

21 VBPASS 35 PVREF

9 CEX 8 CLK

FN_MOD MOD_IN

AUX4 AUX3 AUX2 AUX1

63A 27

30 SFI N 7 DATA 10 MODIN

FN_DATA SPI_DATA_OUT

25 16 28 46 4 45 43

WARP INDMULT SFOUT ADAPTSW LOCK IADAPT IOUT

U201

39 BIAS2 40 BIAS1

C230

LOCK: 3V

C204

DGND AGND PRE_GND PD_GND

C203

.01uF

2.7pF 3.7%

C224 .01uF

NC 3

A3 4 A2 5 A1 6

K3 2 K2 1 K1

R227 39K

C228

C227

C226

C225

0.1uF

1000pF

10uF

D221

5V FN_5V

R223

R212

5V 0

100

C215

C216

C217

C219

C218

2.2uF

0.1uF

1000pF

0.1uF

2.2uF

Figure 11-33. UHF (465-495 MHz) PCB8486634Z02-O Synthesizer Schematic Diagram November 24, 2003

HKLN4216A

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

11-45

UHF R3 VCO V_SF L270

4.5V

220nH

330

390pF

R274 33

390pF

27nH D251

C253

C255

1.6% 6.2pF C254

1.1% 9.1pF C256

3.3pF 3.0%

L254 12.5nH 2%

3.9pF 2.5%

.01uF

L271 NU

R271 5.1K

R272 6.2K

1 2 3 4 5 6 16 15 20 19

R253

TX_IADJ RX_IADJ SUPER_FLTR COLL_RFIN RX_BASE RX_EMITTER TX_BASE TX_EMITTER FLIP_IN TRB_IN

R V_STEE

3.2V to 9.5V

C257

R254 100

L251 12pF 1%

220nH C251

C252

150pF

L282 18nH

VCC_BUFFERS 14 18 VCC_LOGIC

C273

L252

C285 0.1uF

0.1uF

C271

VCO_V_STEER

390pF

C272

C292

VCO_3V

0.1uF

L272 220nH

SH253 SHIELD

SH251 SHIELD

C274

C270

SH250 SHIELD

R277

R273

R284 NU

C290 10 TX_OU T RX_OUT 8

U251

27nH

1.6% 6.2pF

7 RX_SWITCH 13 TX_SWITCH

C264

D261 3.0pF 3.3%

L264 8nH 2%

C268 V_SF

PRESC_OUT

VCO_5R

13pF 1%

L281

18nH C284

R281 8.2K

C286

R285

3.9pF 2.5%

C281

R282

390pF

910

C282 4.3pF 3

2.3%

VCO_RX_IN J RX_IN J

Q280

BFS540 R280 4.7K

L283 NU

C283 R283 130

390pF

C266 3.0pF 3.3%

0.5pF 20%

R263 V_SF 33 R262 7.5K

R261

C291

NC NC

390pF

5.6pF 1.8%

TX_IN J L291 6.8nH

C265

C263

VCO_TX_INJ

1.5% 6.8pF

L255 220nH

L262

VCO_MOD

L292 15nH

4 50U5

9 GND_FLAG 11 GND_BUFFERS 17 GND_LOGI C

VCO_VSF V_S F

C267

R264 100

9.1pF 1.1%

R276

L276

27nH

VCO_PRESC PRESC

C276

VCO_MOD 22K

L265 220nH

D262

3.6pF 2.8%

1SV229 RX: 0V TX: 3V VCO_TRB

R275

TRB 100

C275 390pF

Figure 11-34. UHF (465-495 MHz) Voltage Controlled Oscillator Schematic Diagram HKLN4216A

November 24, 2003

11-46

UHF 465-495 MHz Schematic Diagrams, Overlays, and Parts Lists

UHF R3 Tx

PA_USWB+ USWB+ PA_TX_EN A TX_ENA

C170 5

390pF

Q170

Q171

EMB10

SH100 SHIELD

C525 1 C172

390pF C157

C154

0.1uF

390pF

R120 150

390pF

R152

R158

C160

1.5K

0.1uF

C151 390pF

C156

Q150

R157

U150-1 LM2904

PA_PWR_SET

57R01

100K 1%

2.2K

C159

390pF

C153

R156 330

U150-2

C152

LM2904

390pF

C121

R151

R154

5 8

U151

390pF

.01uF TP150

C150

R121 150

100K 1% R153 100K 1%

L120 220nH

R155 100K 1%

390pF

R150 0.1

J140

C137

4 S1

0.47uF

220pF

3 S2

R162

2 G1 5 G2

PWR_SET 10K

C158

R110

390pF

R111 2K

390pF

L140 15.92nH

220nH

680 C111

1 T1 6 T2

L110

C112

C171

0.1uF

390pF

VR110 3.9V

C113

C115

C116

390pF

1uF

0.1uF M140 ANTENNA_NUT

PA_5T

MM3Z3V9T1 4813830A86

5T C109

C114

0.1uF

390pF

R107 NU

R106 4.7K

NC C141

L100 220nH

1pF

2 C103 390pF

PA_TX_INJ

R101

C100 390pF

TX_IN J R100 820

5.6 R102 820

C102 L101 220nH

L102

C105 1

6.8pF

R103 3K

Q100

C107 NU

390pF

VDD

C117

D120

390pF

MA4PH261

RFOUT 4

RFIN

GN D 5

C131

C133

C135

NU L130

NU L131

NU L132

20.45nH

17.02nH

3 4

NC NC

L141 30.54nH

17.02nH

C130

C132

C134

C136

6.8pF

4.3pF

RA07M4452M_UHF L121

C120

C124

C101

C108

0.1uF

390pF

390pF 0603

15nH

NU R104 18

TAB3 TAB4

U110

BFG540W

7.5nH C104

5.1nH

0.1uF R105 2.7K

VGG

C106

L103

1 TAB1 2 TAB2

C122

D121

C123

2.7pF

MA4PH261

3.9pF

PA_RX_OU T RX_OUT

Figure 11-35. UHF (465-495 MHz) PCB8486634Z02-O Transmitter and Power Control Schematic Diagram November 24, 2003

HKLN4216A

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

11-47

5V +3 V

SW_B +

SW_B

Controller

VS_AUDIO_SEL CNTL_PWR_SET OPT_MI C

PWR_SET

OPT_TX_AUD_FLAT_RETURN OPT_TX_AUD_RETURN

SW_B +

OPT_RX_AUD_SEND_UNMUTED

OPT_RX_AUD_RETURN

VS_GAIN_SEL

C500

1000pF

4 C503 1000pF

BATT_CHARGE

RESET

SC I

ASFIC_CS

F1200

uP_CL K

BOOT_ENA

HSIO

16_8_MHZ

C501

CNTL_SPI_CLK

1uF

SPI_CLK CNTL_SPI_DATA_OUT SPI_DATA_OUT

R502 100

R504

100

CNTL_SYNTH_CS SYNTH_CS

R501 100

CNTL_LOCK LOCK

J460-1 CONNECTOR ACCESSORY/KEYPA D

CNTL_RSSI

R505 TP40 3

100

C406

RSSI CNTL_TX_ENA TX_ENA

TP40 4

150pF

SW_B

USWB BATT_DETECT

SCI

RESET

ASFIC_CS

uP_CLK

F120 0

BOOT_ENA

EXT_MIC_PTT

HSIO

VOX

LSIO

CH_ACT

SQ_DET

SPI_DATA_OUT

D3_3V

DISPL_COM_DATA_SEL VS_RAC OPT_DATA_READY

SPI_CLK

SW_B +

SPI_DATA_IN

D3_3 V

SW_B +

1000pF

R503 10 0

C50 4

C403 150pF

BK1005HM47

EXT_MIC_PTT

VOX

E500 1

LSI O

MOD_OUT

16_8_MHZ

SQ_DET

BW_SEL

CNTL_MOD_OU T MOD_OUT CNTL_16_8_MHZ

CH_ACT

16 14

SPI_DATA_OUT

19 17

SPI_CLK

20 18

C405 150pF

D3_3 V

BW_SEL

AUDI O

OPT_RX_AUD_SEND_DETECTO R

DEMOD CNTL_BW_SEL

OPT_TX_AUD_SEND 28

PWR_SET CNTL_DEMOD

DEMO D

3V D3_3V CNTL_USWB+ USWB+ CNTL_5V 5V

TP301 CNTL_5R

5R CNTL_5T

BACKLIGHT

KEYPAD_ROW

CNTL_3V

SYNTH_C S

KEYPAD_COL

1000pF

1000pF C404

1000pF C407

C409

1000pF

C408

1000pF

1000pF C507

1000pF C40 2

1000pF C506

C505

S441 SWITCH 1 A1 3 A2

B1 2

OPT_BUTTON_ 2 FREQ_SEL_ 3

B1 2 B2 4

S440 SWITCH 8

PC0 PC1 PC2 C0 C1 9 7

PC3

GND1 GND

1 A1 3 A2

TX_EN A

BATT_CHARGE

D3_3V

RESET

RX_ENA

RX_EN A

VOLUME

ON_OFF

ON_OF F

OPT_BUTTON_ 1

B1 2 B2 4

S443 SWITCH

RSSI

PTT

B2 4

S442 SWITCH 1 A1 3 A2

MICROPROCESSOR

SWB+

OPT_EN A VS_CS VS_IN T

LOCK USWB +

DISP_EN A

1 2 4 C0 C1

FREQ_SEL_ 0

DC_REGULATION

TX_EN A

FREQ_SEL_ 1 FREQ_SEL_ 2

Figure 11-36. UHF (465-495 MHz) Controller Interconnect Schematic Diagram HKLN4216A

November 24, 2003

11-48

UHF 465-495 MHz Schematic Diagrams, Overlays, and Parts Lists

Microprocessor D3_3 V

D3_3V R416 20K

R410 10K

D3_3V C410

C411

C412

10uF

0.1uF

1000pF

C413 R412 100K

0.1uF

8 6 1 3 7 5

TP405

VCC SCK CS 2 WP SO HOLD SI VSS

0.1uF

Q410

TP402

C418

R417 10K

R411

SC I 820

SH401 SHIELD

SH400 SHIELD

C419

1000pF

U402

R419 4.7K

X25128-2.7 EEPROM 1

TP401 LSI O CH_ACT

SPI_DATA_IN

SQ_DET

SPI_DATA_OUT

HSI O OPT_DATA_READY

SPI_CLK

uP_CLK C400

R400 NU

D3_3 V

R418

NU 100K

C414

C417 C415

DISPL_COM_DATA_SEL

C416

0.1uF 1000p F 1000pF

R445 4.7K

2 D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)

ON_OFF

30 31 32 33 34 35 36 37

PC0_DATA0 PC1_DATA1 PC2_DATA2 PC3_DATA3 PC4_DATA4 PC5_DATA5 PC6_DATA6 PC7_DATA7

A(18:0) C430

C431

0.1uF

1000pF

D3_3V

R433 100K

21 22 23 25 26 27 28 29

D0 D1 U404 A0 D2 FLASH A1 D3 A2 A3 D4 A4 D5 A5 D6 A6 D7 A7 6 A8 NC A9 A10 A11 A12 A13 A14 A15 A16 GND

R431 NU

20 19 18 17 16 15 14 13 3 2 31 1 12 4 5 11 10

C432

C433

0.1uF

1000pF

VDD VDDR VDDL AVDD

LVOUT 95

VRL 68 VRH 69

EXTAL 90 XTAL 91

86 85 84 83 82 81 80 79

12 88 39 59

PTT EXT_MIC_PTT FREQ_SEL_0 FREQ_SEL_1 VS_RAC

FREQ_SEL_2 FREQ_SEL_3 OPT_BUTTON_1 OPT_BUTTON_2

5V 1

A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7) A(8) A(9) A(10) A(11) A(12) A(13) A(14) A(15) A(16)

R430 100K D(0) 11 D(1) 12 D(2) 13 D(3) 15 D(4) 16 D(5) 17 D(6) 18 D(7) 19

VDD A0 A1 U403 A2 A3 NU A4 SRAM A5 A6 D1 A7 D2 A8 D3 A9 D4 A10 D5 D6 A11 D7 A12 A13 D8 A14

A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7) A(8) A(9) A(10) A(11) A(12) A(13) A(14)

C445

C440

C441

C442

C443

C444

C401

.01uF

0.1uF

R440 4.7K

.01uF

200K 1% R421 100K 1%

C422

D424 3V

.01uF

RED LED

D440 BRPY1204W

20 CS 22 OE 27 WE VSS 14

A(18)

0.1uF

VOLUME

R442 220

SW_B+ C447

R441 4.7K

Q440-2

C420

Q440-1 5

10 9 8 7 6 5 4 3 25 24 21 23 2 26 1

C446

SW_B +

A(17) R434

PE0_AN0 PE1_AN1 PE2_AN2 PE3_AN3 PE4_AN4 PE5_AN5 PE6_AN6 PE7_AN7

67 66 65 64 63 62 61 60

BOOT_ENA

R420

24 R432

NC NC

71 72 73 74 75 76 77 78

D414

D3_3V

8 VCC 30 EN_CE 32 EN_OE 7 EN_WE RESET 9

AT49LV001N_70VI

D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)

U401 MC68HC11FL0

A(7) A(6) A(5) A(4) A(3) A(2) A(1) A(0)

D(7:0) D3_3 V

VDDSYN 92 XFC 93

PH0_PW 1 PH1_PW 2 PH2_PW 3 PH3_PW 4 PH4_CSI O PH5_CSGP1 PH6_CSGP2 PH7_CSPROG

22 23 24 25 26 27 28 29

DISP_ENA

47 46 45 44 43 42 41 38

PJ0_CSGP3 PJ1_CSGP4 PJ2 PJ3 PJ4 PJ5 PJ6 PJ7

VSS VSSR VSSL AVSS

RESET

89 96 NC 48 94 4 58 57

13 87 40 70

Q402 3

ECLK IRQ XIRQ RESET PG7_R_W MODA_LIR MODB_VSTBY

PI 7 PI6 PI5 PI4 PI 3 PI 2 PI1 PI0

R446 10K

49 50 51 52 53 54 55 56

PG0_XA13 PG1_XA14 PG2_XA15 PG3_XA16 PG4_XA17 PG5_XA18 PG6_AS

PB5_ADDR13 PB4_ADDR12 PB3_ADDR11 PB2_ADDR10 PB1_ADDR9 PBO_ADDR8

Q403

6 16 20 19 17 18 5

1000pF

NC NC

A(13)15 A(12) 21 A(11) 9 A(10) 11 A(9) 10 A(8) 14

BACKLIGH T

PA7_PA1_OC1 PA6_OC2_OC1 PA5_OC3_OC1 PA4_OC4_OC1 PA3_IC4_OC5_OC1 PA2_IC1 PA1_IC2 PA0_IC3

SW_B + 3

PF7_ADDR7 PF6_ADDR6 PF5_ADDR5 PF4_ADDR4 PF3_ADDR3 PF2_ADDR2 PF1_ADDR1 PFO_ADDR0

NC A(14) A(15) A(16) A(17) A(18)

R414 33K

R415 33K

F1200

7 PB7_ADDR15 8 PB6_ADDR14

SYNTH_CS

PD6_LVIN 3 PD5_SS 2 PD4_SCK 1 PD3_MOSI 100 PD2_MISO 99 PD1_TXD 98 PD0_RXD 97

NC ASFIC_CS

R413 100K

R443 120

RB520S-30 R424

D3_3V

200K 1%

GREEN LED

C421 R422 100K

R423 100K

.01uF

BATT_DETECT

R425 100K 1%

RSSI VO X KEYPAD_CO L KEYPAD_RO W LOCK VS_INT VS_CS OPT_ENA TX_ENA RX_ENA

Figure 11-37. UHF (465-495 MHz) PCB8486634Z02-O Microprocessor Circuitry Schematic Diagram November 24, 2003

HKLN4216A

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

11-49

R516

R523

C512

10K

C514

6.8pF

R522

16pF

100K

R514

R512 150K

LM2904 R511

100K

DEMOD

Q520 8 1

R513

R515

IMX1

C518 6

IMX1

C460

0.1uF

VR471

C511

C513

R518 220K

220pF

R519 100K

C519

R470

OPT_RX_AUD_SEND_DETECTO R

5V_A

Audio

Q520

5V_A

100K

U510-1

U510-2

0.1uF

2.2K

OPT_RX_AUD_RETURN

LM2904 R521 NU

R520 100K

3V_A

NC OPT_RX_AUD_SEND_UNMUTED

R480 0

OPT_TX_AUD_FLAT_RETURN R517 OPT_TX_AUD_SEND

1uF

OPT_TX_AUD_RETURN VS_AUDIO_SEL VS_GAIN_SEL

3V_A

PWR_SET VOX

3V_A 0.1uF

C452 0.1uF

R462 24K

0.1uF 4.7uF 10 V

SQCAP VDDDAC UIO SQIN PLCAP VOX DACG DACR DACU GND A DISC VDDA

12 11 10 9 8 7 6 5 4 3 2 1

C455 .022uF

CH_ACT

13 14 15 16 17 18 19 20 21 22 23 24

SQ_DET LSIO HSIO ASFIC_CS

GCB2 GCB1 GCB0 CHACT SQDET LSIO HSIO CSX CLK DATA GND SYN LCAP

U451 30C53

C456

SPI_DATA_OUT

0.1uF

Not Placed

R517

Not Placed

R463

30K

24K

3V_A

R451 47K

Q472

2.2K

Q471 3

5V R474 330

C464

C465

C471

0.1uF

1000pF

2.2uF

1 R476 100K

4 5

Q470

2 3

D470

2.2K

A_MOD_OUT

L471 390nH C474

C473

150pF

J471 ACCESSORY CONNECTOR

5 S4

.022uF

0.1uF

1000pF

1 M1

2.2K

C493

3 M3

J470-1

R478 C478

C476

J491-1 INTERNAL SPEAKER

.022uF 150pF

R494 C494 330K 2.2uF

7 S1 2 M2

VR474 MMBZ5250B 20V

C475

VR475 15V MMBZ5245B

SW_B+

6 S3

SCI

VR473 20V MMBZ5250B NC

C458

BOOT_ENA

4 S2

R479 100K

C466

OPT_MIC

EXT_MIC_PTT

MOD_OUT

RESET

0.1u F

BATT_CHARGE

R475 180K R477

C472 0.1uF

R255 3.9K 1%

0.1uF

R473 680

C477

MICROPHONE CONNECTOR

E451

2 16_8_MHZ

BK1005HM471

C459 F1200 0.1uF uP_CLK

5V_B

C481 .01uF

E452 BK1005HM471 5V

E453

5V_A 2

5V BK1005HM471

C497

5V_B

C482 .01uF

Not:Placed:NU 3

Q481 Not_Placed:NU 1

0.1uF R486 100K Not_Placed:NU

R483 150K Not_Placed:NU

R487 0

5V_B 8

2 3

C499 82pF

C483 0.1uF

R484 2.2K

Not_Placed:NU

C484

U480-1

R485 100K 1

Q490

R492

24K

R490 2.2K Not_Placed:NU

Not_Placed:NU .033uF

LM2904 Not_Placed:NU

R491

DC Level 0.3 - 0.4 V low Supply = 7.42 1/2 Supply = 3.22 1 3 2 4

C488

VCC

C480

R469

0.1uF

3 J491-3

470pF

U490

TDA854 MODE 5 INPOS OUTNEG SVR OUTPOS 8 INNEG

C479 150pF

GN D

4 J491-4

C489 1

470pF

7 C492

R496 10K Not_Placed:NU

R497 1MEG

10uF

Q482

Not_Placed:NU

R493 330K

R516

1200pF

R482 330K

0.1uF

Not_Placed:NU

Not Placed

0.1uF

Not_Placed:NU

R515

C467

R481 100K

UHF 100k

3V_A

C463

R464

Not_Placed:NU

VHF

48 NC 47 46 45 44 43 42 41 40 39 38 37 NC

C462

1 2

R471

C457

Not Placed

0.1uF

25 26 27 28 29 30 31 32 33 34 35 36

SPI_CLK

R513

MICEXT GNDRC MICINT VDDRC TXSND RXRTN AUXTN AUDIO MOD RXSND GCB5 GCB4

PLCAP2 NC VDDSYN SYN F1200 GNDDO GNDD VDDCP VDDD CLK168 GCB3 TXRTN

BW_SEL

1000pF

VR472

D471

C454

5V_A

C453

C470

R460 24K

C451

R472 680

C461

5V_B

Not_Placed:NU

UMG5 1 5V_B

C490 470pF

R498

U511

2 3

R488 330K

C495

UMG5 4

1uF

D491

47 K

8 7

6 5

C496 1uF

U480-2

NC Not_Placed:NU

R499 270K Not_Placed:NU

LM2904 Not_Placed:NU

R489 91K Not_Placed:NU

2 3

R495 5.6K C498 1uF

Figure 11-38. UHF (465-495 MHz) Audio Circuitry Schematic Diagram HKLN4216A

November 24, 2003

11-50

UHF 465-495 MHz Schematic Diagrams, Overlays, and Parts Lists

DC Regulation USWB+ J301 POS NEG DATA

U310 TK71750S

VR301 MMBZ5250B

F301

C301

D301

390pF

20V

C303

C304

33uF

.01uF

1 VIN 5 VOUT 3 4 CTRL BYPASS GND 2 C310 .01uF

5V C311

C312

C313

.018uF

10uF

.01uF

Q311 5R

D3_3V BATT_CHARGE

C314

VR302 MMBZ5250B

C302

C305

C306

390pF

100pF

.01uF

1200pF

NC R313 10K

20V

R312 20K

R310 100K

Q313

C315

RX_ENA

1200pF

Q312

TP302 TX_ENA

5T R311 100K

D3_3V

R506 100

1200pF 2

VOLUME

SWB+

R508 100K

R509 100K

RESET

TAB2

TAB1

LOW

R507 100

C316

Q493

S444 SWITCH 3 HIGH 4

C323 R322 100K

Q494 R510

LP2986

330K

ON_OFF

D3_3V

U320

150pF

NC NC

4 INPUT OUTPUT 5 8 SHUTDOWN 3 SENSE ERROR 7 6 TAP FEEDBACK 2 GND

D3_3V C320 .018uF

R320 330K 1%

C321

C322

10uF

.01uF

R321 200K 1%

U330 TK71730S

C331

1 VIN VOUT 5 3 CTRL 4 BYPASS GND 2

3V C334

C333

10uF

.01uF

Figure 11-39. UHF (465-495 MHz) PCB8486634Z02-O DC Regulation Schematic Diagram November 24, 2003

HKLN4216A

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

J2 MAIN BOARD CONNECTOR J2-9 J2-16 J2-17 J2-10 J2-1 J2-2 J2-3 J2-4 J2-6 J2-13 J2-14 J2-15 J2-18 J2-19 J2-12 J2-21 J2-22 J2-23 J2-24 J2-25 J2-26 J2-27 J2-5 J2-7 J2-8 J2-2 J2-11 J2-20

9 16 17 10 1 2 3 4 6 13 14 15 18 19 12 21 22 23 24 25 26 27 5 7 8 8 11 20

11-51

J1 DISPLAY MODULE CONNECTOR

KEYPAD

LEDBL

DATA CLK LCD_SEL NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC

C1 150pF

C3 150pF

C6 150pF

C8 150pF

DNF

R1 100K

Vddd R6 100K

Vddd

150pF

0.1uF

R10

13K

22 K

43 K

130K

J2-29 G1 J2-30 G2

9 8 7 6 5 4 3 2 1

J1-9 J1-8 J1-7 J1-6 J1-5 J1-4 J1-3 J1-2 J1-1

LEDBL GND GND GND DATA CLK LCD_SEL GND VDDD

G1 J1-10 GND G2 J1-11 GND

R2 13 K S18 SWITCH 1 1 2 3

S17 SWITCH 2 1 2 3

S2 2 SWITCH 6 1

2 3

S2 3 SWITCH 5 1 2 3

S2 5 SWITCH 8 1 2 3

S26 SWITCH 9 1 2 3

S2 7 SWITCH 0 1 2 3

COL ROW

NC NC

REF

Vddd

150pF DNF

STD

LIMITED KEYPAD

NOT PLACED

R10

NOT PLACED

S19 SWITCH 3 1

2 3

1 2 3

S20 SWITCH UP

R3 22 K

S24 SWITCH 4 1

R4 43K

R5 130K

S21 SWITCH 7 1 2 3

2 3

S28 SWITCH 1 2 3

LEDBL D3

NOT PLACED

R13

NOT PLACED

R14

NOT PLACED

R15

NOT PLACED

S2 9 SWITCH # 1 2 3

S3 0 SWITCH DOW N 1 2 3

1 2 3

S31 SWITCH F1

QSMG-H799 D2

D10

R11 470

D11

D3 QSMG-H799

QSMG-H799

S32 SWITCH F2 1 2 3

D1 QSMG-H799

D4 QSMG-H799

D5 QSMG-H799 D6 QSMG-H799

D7 QSMG-H799 D8 QSMG-H799

QSMG-H799 R12 470

R1 3 330

R14 330

R15 33 0

Figure 11-40. UHF (465-495 MHz) Keypad Board Schematic Diagram HKLN4216A

November 24, 2003

11-52

UHF 465-495 MHz Schematic Diagrams, Overlays, and Parts Lists

4 J470

R483

VR301

C489

L471

D470

R481 C482 4

U480 VR475

R61

R482

R63

VR473

R489

C301

C69

E452 3 4

1 C

VR110

S440

C306

2 J301

Q280 L281

C92

C240

C116

C12 C4

C8 C6

C117

J140

M140

S442

C523

L21

C10

R24 C23 R22

R25

CR1

C21 C11

S443

C521

SH1

C46

C25

C32

Q21

C47

C522

C28 L55

C36

C34 C33

C230

C233

L33

C30

C39

C48 C38

U110

C113

L31

C29

C31 L32

L34

C27 C35

C524 C37

C241

U201

SH201

C201

R469

C476

C473

C91

C217 C216

C231

R496

VR302

S444

3 5

Q171

C284

C232

C205

U52 8

3 Y70

SH253

R283

R212

C212

R247

C215

R281

L283

C244

C214 C202 R205 R221 R220

C219

C218

R230

R417

R223

C412

C413

C419

R419

R410

C410

C208

C418

R431

C432

C209

R400

C400

C433

R504

C207

C210

C505

R243

C204

C506 C503

R245

R244

L211

C213

U404

C409

C408

C406

C243

C245

SH401

C507

C407

U403

C480

J471

C305

C281 R282 R285

C283

C504

C282

C286

C252

L251

C251

D251

C402 C403

C488

C302

C254

7 6

F301

R280

L252

C446

Q403

L254

C253

C263

L262

C257

C255

C268

SH250

R261 R262

C430 C431

C265

D261

R442

R445 R446 C500 C404

Q402

U402

R424

D262

C422 C421

R425

R443

Q440

C264

C256

C266

L264

C455

FL54

L255

R253

C267

R254

FL53

C303

L265

D424

D471

R521

C461

R471

R503

R264

R263

R514 R513

4 U451

C460

R462

C470 VR472

R522

VR471

C477

Q472

R472

C513

C458

C454 R463

R414

C501

E500

R470

R473

R480

C465

C478

D301

S441

Figure 11-41. UHF (465-495 MHz) PCB8486634Z02-O Board Component Side View November 24, 2003

HKLN4216A

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

11-53

L140

C137

C133

SH100 TP150

R111

C106

C107 D440

L103

C105

R104

Q100

R499

R488

D491 R498

4 3

C495

R494

R507

Q493

Q481 C481

R509

VR474

R485

Q482

R508 R495

R486

R487 R484 C484

3 4

R490 C483 R491

R497

Q490

U511

R492

U490 5

C490

C498

C102

C499

R311

C314

R310

TP404

C316

L131

C132 L110

R476

R493

C315

L141

C112

C479

C492

3 4

5 R322 R506

C472

C474 R477

J491 Q312

U320

R320

C322

Q311

L100

R105 C108 L101 C101

Q470

R479

R312

R313 Q313

C323

C320

R255

C312

R106

R103 L102

R475 R474

C311

C313

U310

C310

FL52

R162

C104

C334

U330

C333 C331

C304

C61

C154

R478

C475

L81 C82

R62

D51

R60

C74

R102

C103

L132

C496 R82

C41 C42

D52

R100

R81

C64

R67

C63

C65

C153

R101 C100

C171

R158

C120

Q170

3 4

C172

Y51

C66

R156

C525

C170

C115 C111 R110 C156 R107 C114 C109

C141

L130

R157

Q150

SH50

C160

C134

C135

U150

R155

C150 R152

R153

C80 R80

C81

C62

R40

C271 R321

C321

C151

R57

R77

C67 R64

L270

E453

C457

R451

C456

E451

C68 R66

R91

L54

C471

C273

L272

R65

L40

C274 C270

R76

U51 C45

L41

1 L271

C292

R272 L282 R273 R271

U251

SH251

R274

C43

R277

L292

C44

C60 R90

R74

Q70

C73 R78 R75

TP1

T42

C90

C72 C70 R73

R284

C285

C290

C453

C275

L291

L276 R275

R511

C466

SH40

TP2

TP200

TP240

C445 R412 C416 C440 C441 C411 C442

R516

C497

C291 R276

C272

C463

C71

R72

C451

R518

C518 C514

R246

C276

C452

C462

C415

C443

R415

D414

R464

TP403

U510 5

R418

C464

R517 R460 R515

Q471

C519

R519

R512

C459

C511

C420 TP301

C467

Q520 R520

R421

C401 C512

R420

C444 C414

C447

R523

3 4

R422

R441

R440

28 30

R423

C13 CR41

C405 R505

C14

C203

D201

R202

C226

C225

R413 R430

SH400

J460

U401

C211

R154

C152

C136

C123

C131

C158

C159 4

C157

Y202 4

R151

D121

L121

D120

C58

C130

R150

C124

C122

R120

R55 C59

C228

L120

C57

R227 C227

R121

U151 C56

R54 Q51

C93

L53

CR51

C55 R53

SH52

4 T41

R23

L52

R51

FL51

SH200

Q22

C99

C26

C51

C223 C224

R52 2

Y201

C121

C52 C53

C49

C221

D221

31 32

R501

L51 2

R502

C222 D220

R433

R432

C206 R206

C220

R411

Q410

4 3

TP302

R434

R21

TP405

TP401

TP402 C417 R416

C20

R20

4 Q494 3

R510 C493 C494

Figure 11-42. UHF (465-495 MHz) Board Solder Side View HKLN4216A

November 24, 2003

11-54

UHF 465-495 MHz Schematic Diagrams, Overlays, and Parts Lists

C7 1

R11

G2 9

D1 D6

g2 R9

D11

R10

R6 R1 R7

R8 D7

D10

R15 R14 D2

R13 R12

R4 R3

Component Side

Solder Side

Figure 11-43. UHF (465-495 MHz) PCB8486634Z02-O Keypad Board November 24, 2003

HKLN4216A

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

UHF (465-495 MHz) Radio Parts List

Motorola Part No. 2109445U32 2109445U26 2109445U18 2109445U27 2109445U32 2109445U24 2109445U26 2109445U18 2109445U22 2109445U13 2113743L07 Not_Placed 2109445U07 2109445U07 2113743L07 2109445U53 2113743L07 2113743L07 2113743L07 2109445U25 2109445U27 2109445U22 2109445U38 2109445U21 2109445U22 2109445U42 2109445U22 2109445U22 2109445U39 2109445U25 2109445U20 2109445U13 2109445U27 2109445U25 2109445U40 2109445U26 2109445U37 Not_Placed Not_Placed 0662057M01 Not_Placed 2113743N48 2109445U39 2109445U26 2113743M24 2113743E20 2113743M24 2113743N16 2113743N12 2113743M24

HKLN4216A

Description CAP, 8pF CAP, 9.1pF CAP, 4.3pF CAP, 10pF CAP, 8pF CAP, 7.5pF CAP, 9.1pF CAP, 4.3pF CAP, 6.2pF CAP, 2.7pF CAP, 390pF CAP, 8.2pF CAP, 1.5pF CAP, 1.5pF CAP, 390pF CAP, 68pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 8.2pF CAP, 10pF CAP, 6.2pF CAP, 16pF CAP, 5.6pF CAP, 6.2pF CAP, 24pF CAP, 6.2pF CAP, 6.2pF CAP, 18pF CAP, 8.2pF CAP, 5.1pF CAP, 2.7pF CAP, 10pF CAP, 8.2pF CAP, 20pF CAP, 9.1pF CAP, 15pF CAP, 10pF CAP, 10pF RES, 0 CAP, 3.9pF CAP, 82pF CAP, 18pF CAP, 9.1pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 3.9pF CAP, 2.7pF CAP, 0.1uF

Motorola Part No. 2113743N46 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743M24 2113743N53 2113743E20 2113743M24 2113743L33 2113743N42 2109445U41 2109445U45 2109445U45 2113743M24 2311049A57 2113743E20 Not_Placed 2113743M24 2113743L07 2113743M24 2113743M24 2113743L07 2113743N22 Not_Placed 2113743L07 Not_Placed 2113743L07 2113743M24 2113743L07 2113743M24 2113743L07 2113743L07 2311049A07 2113743M24 2113740F65 Not_Placed 2113743L07 2113740F13 2113740F17 2113740F65 Not_Placed Not_Placed 2113740F23 Not_Placed 2113740F23 Not_Placed 2113740F18

11-55

Description CAP, 68pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 130pF CAP, 0.1uF CAP, 0.1uF CAP, 4700pF CAP, 47pF CAP, 22pF CAP, 33pF CAP, 33pF CAP, 0.1uF CAPP, 10uF CAP, 0.1uF CAP, 3.6pF CAP, 0.1uF CAP, 390pF CAP, 0.1uF CAP, 0.1uF CAP, 390pF CAP, 6.8pF CAP, 3.9pF CAP, 390pF CAP, 27pF CAP, 390pF CAP, 0.1uF CAP, 390pF CAP, 0.1uF CAP, 390pF CAP, 390pF CAPP, 1uF CAP, 0.1uF CAP, 390pF CAP, 8.2pF CAP, 390pF CAP, 2.7pF CAP, 3.9pF CAP, 390pF CAP, 3.3pF CAP, 2.2pF CAP, 6.8pF CAP, 2.7pF CAP, 6.8pF CAP, 0.5pF CAP, 4.3pF

Circuit Ref C137 C141 C150 C151 C152 C153 C154 C156 C157 C158 C159 C160 C170 C171 C172 C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C221 C222 C223 C224 C225 C226 C227 C228 C230 C231 C232 C233 C240 C241 C243 C244

Motorola Part No. 2113740F59 2113740F03 2113743L07 2113743L07 2113743L07 2113743K18 2113743L07 2113743L41 2113743M24 2113743L07 2113743L07 2113743E20 2113743L07 2113743L07 2113743L07 2113740F59 2109445U52 2109445U13 2113743L09 Not_Placed Not_Placed 2113743L09 2113743L09 2113743L09 2113743L09 2113743E20 2113743F18 2113743L41 2113743L17 2113743F18 2113743E20 2113743L17 2113743F18 2113743E20 2113743N34 2113743L41 2113743L41 2113743L41 2113743L41 2311049A57 2311049A57 2113743L17 2113743E20 2113743F18 2113743L17 2113743E20 2311049A56 2109445U06 2113743N50 0886641Z01 0888600M25

Description CAP, 220pF CAP, 1pF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 0.47uF CAP, 390pF CAP, .01uF CAP, 0.1uF CAP, 390pF CAP, 390pF CAP, 0.1uF CAP, 390pF CAP, 390pF CAP, 390pF CAP, 220pF CAP, 62pF CAP, 2.7pF CAP, 470pF CAP, 2.7pF CAP, 1000pF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 0.1uF CAP, 2.2uF CAP, .01uF CAP, 1000pF CAP, 2.2uF CAP, 0.1uF CAP, 1000pF CAP, 2.2uF CAP, 0.1uF CAP, 22pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAPP, 10uF CAPP, 10uF CAP, 1000pF CAP, 0.1uF CAP, 2.2uF CAP, 1000pF CAP, 0.1uF CAPP, 4.7uF CAP, 1.3pF CAP, 100pF CAP, 0.1uF CAP, .01uF

Circuit Ref C245 C251 C252 C253 C254 C255 C256 C257 C263 C264 C265 C266 C267 C268 C270 C271 C272 C273 C274 C275 C276 C281 C282 C283 C284 C285 C286 C290 C291 C292 C301 C302 C303 C304 C305 C306 C310 C311 C312 C313 C314 C315 C316 C320 C321 C322 C323 C331 C333 C334 C400

Motorola Part No. 2311049A08 0888600M03 Not_Placed 2109445U22 2109445U15 2109445U26 2109445U17 2109445U35 2109445U22 2109445U14 2109445U21 2109445U14 2109445U26 2109445U01 2113743L07 2113743L07 2113743E20 2113743L41 2113743E20 2113743L07 2109445U16 2113743L07 2109445U18 2113743L07 2113743L07 2113743E20 2109445U17 2109445U23 2109445U36 2113743L07 2113743L07 2113743L07 2311049A97 2113743L41 2113743N50 2113741F49 2113743L41 2113743E05 2311049A57 2113743L41 2113743L19 2113743L19 2113743L19 2113743E05 2311049A57 2113743L41 2113743N54 2113743L41 2113743L41 2311049A57 Not_Placed

Description CAPP, 1uF CAP, 150pF CAP, 390pF CAP, 6.2pF CAP, 3.3pF CAP, 9.1pF CAP, 3.9pF CAP, 12pF CAP, 6.2pF CAP, 3.0pF CAP, 5.6pF CAP, 3.0pF CAP, 9.1pF CAP, 0.5pF CAP, 390pF CAP, 390pF CAP, 0.1uF CAP, .01uF CAP, 0.1uF CAP, 390pF CAP, 3.6pF CAP, 390pF CAP, 4.3pF CAP, 390pF CAP, 390pF CAP, 0.1uF CAP, 3.9pF CAP, 6.8pF CAP, 13pF CAP, 390pF CAP, 390pF CAP, 390pF CAPP, 33uF CAP, .01uF CAP, 100pF CAP, .01uF CAP, .01uF CAP, .018uF CAPP, 10uF CAP, .01uF CAP, 1200pF CAP, 1200pF CAP, 1200pF CAP, .018uF CAPP, 10uF CAP, .01uF CAP, 150pF CAP, .01uF CAP, .01uF CAPP, 10uF CAP, .022uF

November 24, 2003

11-56

Circuit Ref C401 C402 C403 C404 C405 C406 C407 C408 C409 C410 C411 C412 C413 C414 C415 C416 C417 C418 C419 C420 C421 C422 C430 C431 C432 C433 C440 C441 C442 C443 C444 C445 C446 C447 C451 C452 C453 C454 C455 C456 C457 C458 C459 C460 C461 C462 C463 C464 C465 C466 C467

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

Motorola Part No. 2113743M24 2113743L17 2113743N50 2113743L17 2113743N50 2113743N50 2113743L17 2113743L17 2113743L17 2311049A57 2113743M24 2113743L17 2113743M24 2113743M24 2113743L17 2113743L17 2113743L17 2113743M24 2113743L17 2113743L41 2113743L41 2113743L41 2113743M24 2113743L17 2113743M24 2113743L17 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743L41 2113743M24 2113743M24 2113743E20 2311049A56 2113743E20 2113743L48 2113743E20 2113743E20 2113743E20 2113743E20 2113743E20 2113743L17 2113743E20 2113743E20 2113743E20 2113743L17 Not_Placed 2113743L19

November 24, 2003

Description CAP, 0.1uF CAP, 1000pF CAP, 150pF CAP, 1000pF CAP, 150pF CAP, 150pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAPP, 10uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 0.1uF CAP, 1000pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 1000pF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAPP, 4.7uF CAP, 0.1uF CAP, .022uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 0.1uF CAP, 0.1uF CAP, 0.1uF CAP, 1000pF CAP, 470pF CAP, 1200pF

Circuit Ref C470 C471 C472 C473 C474 C475 C476 C477 C478 C479 C480 C481 C482 C483 C484 C488 C489 C490 C492 C493 C494 C495 C496 C497 C498 C499 C500 C501 C503 C504 C505 C506 C507 C511 C512 C513 C514 C518 C519 C521 C522 C523 C524 C525 CR1 CR41 CR51 D51 D52 D120 D121

Motorola Part No. 2113743E20 2113743F18 2113743E20 2113743N54 2113743N54 2113743L48 2113743L48 2113743M24 2113743N54 2113743N54 2113743E20 Not_Placed Not_Placed 2113743E20 Not_Placed 2113743L09 2113743L09 2113743L09 2113928J08 2113743L17 2113743F18 2113743F16 2113743F16 2113743E20 2113743F16 2113743N48 2113743L17 2113743F16 2113743L17 2113743L17 2113743L17 2113743L17 2113743L17 2113740F59 2113743N22 2113740F59 2113743N31 2113743E20 2113743F16 2109445U13 2113743N01 2186463Z03 2186463Z03 2113743L07 4813825A19 4802246J04 4813825A19 4802245J97 4802245J97 4880973Z02 4880973Z02

Description CAP, 0.1uF CAP, 2.2uF CAP, 0.1uF CAP, 150pF CAP, 150pF CAP, .022uF CAP, .022uF CAP, 0.1uF CAP, 150pF CAP, 150pF CAP, 0.1uF CAP, .01uF CAP, .01uF CAP, 0.1uF CAP, .033uF CAP, 470pF CAP, 470pF CAP, 470pF CAP, 10uF CAP, 1000pF CAP, 2.2uF CAP, 1uF CAP, 1uF CAP, 0.1uF CAP, 1uF CAP, 82pF CAP, 1000pF CAP, 1uF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 1000pF CAP, 220pF CAP, 6.8pF CAP, 220pF CAP, 16pF CAP, 0.1uF CAP, 1uF CAP, 2.7pF CAP, 0.5pF CAP, 0.5pF CAP, 0.5pF CAP, 390pF MMBD352 HSMS2829 MMBD352 DAN235ETL DAN235ETL MA4PH261 MA4PH261

Circuit Ref D201 D220 D221 D251 D261 D262 D301 D414 D424 D440 D470 D471 D491 E451 E452 E453 E500 F301 FL51 FL52 FL53 FL54 J140 J301 J460 J470 J471 J491 L1 L2 L3 L21 L31 L32 L33 L34 L40 L41 L51 L52 L53 L54 L55 L81 L100 L101 L102 L103 L110 L120 L121

Motorola Part No. 4862824C03 4802233J09 4802233J09 4862824C01 4862824C01 4862824C01 4813833A19 4805129M41 4809924D18 4805729G49 4809924D18 4809924D18 Not_Placed 2480640Z01 2480640Z01 2480640Z01 2480640Z01 6580542Z01 9180022M11 9180468V04 9180469V05 9180469V03 0986428Z01 0986565Z01 Not_Placed 0985818A01 0980683Z03 2809926G01 2409348J15 2409348J15 2409348J15 2413926N18 2409348J15 2409348J15 2409348J15 2409348J15 2413926K16 2413926K16 2413926N26 2462587V44 2113743N52 2413923A25 2413926N16 2413923A19 2413926K27 2413926K27 2409377M25 2409377M24 2413926K27 2413926K27 2462587V24

Description 1SV232 IMN10 IMN10 1SV229 1SV229 1SV229 MBRM120ET3 MMBD501 RB520S-30 BRPY1204W RB520S-30 RB520S-30 MMBD501 BK1005HM471 BK1005HM471 BK1005HM471 BK1005HM471 FUSE MXF45 FLTR CFWC455E CFWC455G CONN_J CONN_J CONN_J CONN_J CONN_J CONN_P IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 33nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 9.85nH IDCTR, 27nH IDCTR, 27nH IDCTR, 150nH IDCTR, 680nH CAP, 120pF IDCTR, 1.2uH IDCTR, 22nH IDCTR, 1uH IDCTR, 220nH IDCTR, 220nH IDCTR, 7.5nH IDCTR, 5.1nH IDCTR, 220nH IDCTR, 220nH IDCTR, 15nH

Circuit Ref L130 L131 L132 L140 L141 L211 L251 L252 L254 L255 L262 L264 L265 L270 L271 L272 L276 L281 L282 L283 L291 L292 L471 M140 Q21 Q22 Q51 Q70 Q100 Q150 Q170 Q171 Q280 Q311 Q312 Q313 Q402 Q403 Q410 Q440 Q470 Q471 Q472 Q481 Q482 Q490 Q493 Q494 Q520 R20 R21

Motorola Part No. 2460591C36 2460591C40 2460591C40 2460591L14 2479990M01 2413926K30 2413926N28 2413926N17 2484562T11 2413926N28 2413926N17 2484562T13 2413926N28 2413926N28 Not_Placed 2413926N28 2413926N17 2413926N15 2413926N15 Not_Placed 2413926N10 2413926N14 2413926K30 0286427Z01 4802247J01 4805723X02 4802197J95 4880214G02 4885593U03 4880214G02 4809939C34 4880048M01 4802245J95 4809579E18 4809579E18 4802245J54 4880048M01 4813824A17 4802245J54 5180159R01 4805723X02 4802245J54 4805723X02 Not_Placed Not_Placed 4802245J54 4809579E18 4802245J54 5180159R01 0662057M92 0662057M49

Description IDCTR, 20.45nH IDCTR, 17.02nH IDCTR, 17.02nH IDCTR, 15.92nH IDCTR, 30.54nH IDCTR, 390nH IDCTR, 220nH IDCTR, 27nH IDCTR, 12.5nH IDCTR, 220nH IDCTR, 27nH IDCTR, 8nH IDCTR, 220nH IDCTR, 220nH IDCTR, 220nH IDCTR, 220nH IDCTR, 27nH IDCTR, 18nH IDCTR, 18nH IDCTR, 22nH IDCTR, 6.8nH IDCTR, 15nH IDCTR, 390nH ANTENNA_NUT BFS505 UMT1 PBR941 MMBT3904 BFG540W MMBT3904 EMB10 DTC144EKA BFS540 TP0101T TP0101T UMG5 DTC144EKA MMBT3906 UMG5 IMX1 UMT1 UMG5 UMT1 MMBT3906 MMBT3904 UMG5 TP0101T UMG5 IMX1 RES, 5.6K RES, 91

HKLN4216A

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

Circuit Ref R22 R23 R24 R25 R40 R51 R52 R53 R54 R55 R57 R60 R61 R62 R63 R64 R65 R66 R67 R72 R73 R74 R75 R76 R77 R78 R80 R81 R82 R90 R91 R100 R101 R102 R103 R104 R105 R106 R107 R110 R111 R120 R121 R150 R151 R152 R153 R154 R155 R156 R157

Motorola Part No. 0662057M92 0662057N09 0662057M76 0662057M92 0662057M74 0662057M43 0662057N01 0662057N11 0662057M91 0662057M62 0662057M90 0662057M83 0662057N23 0662057M86 0662057N13 0662057N06 0662057N13 0662057N06 0662057N06 0662057M64 0662057M80 0662057M76 0662057N01 0662057V04 0662057U99 0662057M70 0662057M91 0662057M74 Not_Placed 0662057M43 0662057M79 0662057M72 0662057M20 0662057M72 0662057M85 0662057A07 0662057M84 0662057M90 Not_Placed 0662057M70 0662057M81 0662057C55 0662057C55 0680539Z01 0662057A15 0662057V27 0662057V27 0662057V27 0662057V27 0662057M62 0662057M82

HKLN4216A

Description RES, 5.6K RES, 27K RES, 1.2K RES, 5.6K RES, 1K RES, 51 RES, 12K RES, 33K RES, 5.1K RES, 330 RES, 4.7K RES, 2.4K RES, 100K RES, 3.3K RES, 39K RES, 20K RES, 39K RES, 20K RES, 20K RES, 390 RES, 1.8K RES, 1.2K RES, 12K RES, 12K RES, 8.2K RES, 680 RES, 5.1K RES, 1K RES, 0 RES, 51 RES, 1.6K RES, 820 RES, 5.6 RES, 820 RES, 3K RES, 18 RES, 2.7K RES, 4.7K RES, 300 RES, 680 RES, 2K RES, 150 RES, 150 RES, 0.1 RES, 39 RES, 100K RES, 100K RES, 100K RES, 100K RES, 330 RES, 2.2K

Circuit Ref R158 R162 R202 R205 R206 R212 R220 R221 R223 R227 R230 R243 R244 R245 R246 R247 R253 R254 R255 R261 R262 R263 R264 R271 R272 R273 R274 R275 R276 R277 R280 R281 R282 R283 R284 R285 R310 R311 R312 R313 R320 R321 R322 R400 R410 R411 R412 R413 R414 R415 R416

Motorola Part No. 0662057M78 0662057M98 0662057N27 0662057M50 Not_Placed 0662057C01 0662057M34 0662057M34 0662057M50 0662057N13 0662057N06 0662057M72 0662057M43 0662057M78 0662057N23 0662057N05 0662057M42 0662057M50 0662057U91 0662057N07 0662057M95 0662057M38 0662057M50 0662057M91 0662057M93 0662057M62 0662057M38 0662057M50 Not_Placed 0662057B47 0662057M90 0662057M96 0662057M73 0662057M53 Not_Placed 0662057M01 0662057N23 0662057N23 0662057N06 0662057M98 0662057V43 0662057V35 0662057N23 Not_Placed 0662057M98 0662057M72 0662057N23 0662057N23 0662057N11 0662057N11 0662057N06

11-57

Description RES, 1.5K RES, 10K RES, 150K RES, 100 RES, 100 RES, 0 RES, 22 RES, 22 RES, 100 RES, 39K RES, 20K RES, 820 RES, 51 RES, 1.5K RES, 100K RES, 18K RES, 47 RES, 100 RES, 3.9K RES, 22K RES, 7.5K RES, 33 RES, 100 RES, 5.1K RES, 6.2K RES, 330 RES, 33 RES, 100 RES, 1K RES, 0 RES, 4.7K RES, 8.2K RES, 910 RES, 130 RES, 560 RES, 0 RES, 100K RES, 100K RES, 20K RES, 10K RES, 330K RES, 200K RES, 100K RES, 100K RES, 10K RES, 820 RES, 100K RES, 100K RES, 33K RES, 33K RES, 20K

Circuit Ref R417 R418 R419 R420 R421 R422 R423 R424 R425 R430 R431 R432 R433 R434 R440 R441 R442 R443 R445 R446 R451 R460 R462 R463 R464 R469 R470 R471 R472 R473 R474 R475 R476 R477 R478 R479 R480 R481 R482 R483 R484 R485 R486 R487 R488 R489 R490 R491 R492 R493 R494

Motorola Part No. 0662057M98 0662057N23 0662057M90 0662057V35 0662057V27 0662057N23 0662057N23 0662057V35 0662057V27 0662057N23 Not_Placed 0662057M01 0662057N23 Not_Placed 0662057M90 0662057M90 0662057A33 0662057A27 0662057M90 0662057M98 0662057N15 0662057N08 0662057N08 0662057N08 0662057N10 0662057M26 0662057M82 0662057M82 0662057M70 0662057M70 0662057A37 0662057N29 0662057N23 0662057M82 0662057M82 0662057N23 0662057B47 Not_Placed Not_Placed Not_Placed Not_Placed Not_Placed Not_Placed 0662057M01 0662057N35 Not_Placed Not_Placed 0662057M01 0662057N08 0662057N35 0662057V43

Description RES, 10K RES, 100K RES, 4.7K RES, 200K RES, 100K RES, 100K RES, 100K RES, 200K RES, 100K RES, 100K RES, 100K RES, 0 RES, 100K RES, 100K RES, 4.7K RES, 4.7K RES, 220 RES, 120 RES, 4.7K RES, 10K RES, 47K RES, 24K RES, 24K RES, 24K RES, 30K RES, 10 RES, 2.2K RES, 2.2K RES, 680 RES, 680 RES, 330 RES, 180K RES, 100K RES, 2.2K RES, 2.2K RES, 100K RES, 0 RES, 100K RES, 330K RES, 150K RES, 2.2K RES, 100K RES, 100K RES, 0 RES, 330K RES, 91K RES, 2.2K RES, 0 RES, 24K RES, 330K RES, 330K

Circuit Ref R495 R496 R497 R498 R499 R501 R502 R503 R504 R505 R506 R507 R508 R509 R510 R511 R512 R513 R514 R515 R516 R517 R518 R519 R520 R521 R522 R523 S440 S441 S442 S443 S444 SH1 SH40 SH50 SH52 SH100 SH200 SH201 SH250 SH251 SH253 SH400 SH401 T41 T42 U51 U52 U110 U150

Motorola Part No. 0662057M92 Not_Placed Not_Placed Not_Placed Not_Placed 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057M50 0662057N23 0662057N23 0662057N35 0662057N23 0662057N27 0662057N23 0662057N23 0662057M01 Not_Placed Not_Placed 0662057N31 0662057N23 0662057N23 Not_Placed 0662057N23 0662057M98 4080710Z06 4070354A01 4070354A01 4070354A01 1880619Z02 2686421Z01 2686419Z01 2686423Z01 2686424Z01 2686418Z01 2686424Z01 2686423Z01 2686425Z01 2686425Z01 2686422Z01 2686420Z01 2686420Z01 2580541Z02 2580541Z02 5186144B01 5109522E10 0186438Z02 5113818A01

Description RES, 5.6K RES, 10K RES, 1MEG RES, 47K RES, 270K RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100 RES, 100K RES, 100K RES, 330K RES, 100K RES, 150K RES, 100K RES, 100K RES, 0 RES, 0 RES, 0 RES, 220K RES, 100K RES, 100K RES, 100K RES, 100K RES, 10K SWITCH SWITCH SWITCH SWITCH SWITCH SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD SHIELD XFMR XFMR SA616 TC7W04F RA07M4452M_UHF LM2904

November 24, 2003

11-58

UHF 465-495 MHz PCB 8486634Z02 Schematic Diagrams, Overlays, and Parts Lists

Circuit Ref U151 U201 U251 U310 U320 U330 U401 U402* U403 U404* U451 U480 U490 U510 U511 VR110 VR301 VR302 VR471 VR472 VR473 VR474 VR475 Y51 Y70 Y201* Y202

Motorola Part No.

Description

2484657R01 57R01 5185963A27 63A27 5105750U54 50U54 5102478J01 TK71750S 5185963A55 LP2986 5102479J01 TK71730S 5102226J56 MC68HC11FL0 5102463J64 X25128-2.7 Not_Placed SRM2B256 5102480J01 AT49LV001N_70VI 5185130C53 30C53 Not_Placed LM2904 5108858K99 TDA8541 5113818A01 LM2904 4802245J54 UMG5 4813830A86 MM3Z3V9T1 4813830A33 MMBZ5250B 4813830A33 MMBZ5250B 4813830A18 MMBZ5235B 4813830A09 MMBZ5226B 4813830A33 MMBZ5250B 4813830A33 MMBZ5250B 4880140L20 MMBZ5245B 4802245J84 TSS2_44_395MHZ 9186145B02 45B02 4880114R06 14R06 Not_Placed 45J68 * Motorola Depot Servicing only

Circuit Ref D10 D11 J1 J2 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15

Motorola Part No. 4809496B11 4809496B11 0986632Z01 0909059E18 0662057A97 NOTPLACED NOTPLACED NOTPLACED NOTPLACED 0662057A97 0662057A76 0662057A81 NOTPLACED NOTPLACED 0662057A41 0662057A41 NOTPLACED NOTPLACED NOTPLACED

Description QSMG-H799 QSMG-H799 CONN_J CONN_J RES, 100K RES, 13K RES, 22K RES, 43K RES, 130K RES, 100K RES, 13K RES, 22K RES, 43K RES, 130K RES, 470 RES, 470 RES, 330 RES, 330 RES, 330

UHF (465-495 MHz) Keypad Board Parts List

Circuit Ref C1 C2 C3 C4 C5 C6 C7 C8 D1 D2 D3 D4 D5 D6 D7 D8 D9

Motorola Part No. NOTPLACED 2113740F55 NOTPLACED 2113743E20 NOTPLACED NOTPLACED NOTPLACED NOTPLACED 4809496B11 4809496B11 NOTPLACED NOTPLACED NOTPLACED NOTPLACED NOTPLACED NOTPLACED 4809496B11

November 24, 2003

Description CAP, 150pF CAP, 150pF CAP, 150pF CAP, 0.1uF CAP, 150pF CAP, 150pF CAP, 150pF CAP, 150pF QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799 QSMG-H799

HKLN4216A

INDEX A Antenna Matching Network, UHF 403-440 MHz Theory Of Operation ...............................7-4 Antenna Matching Network, UHF 438-470 MHz Theory Of Operation ...............................8-4 Antenna Matching Network, UHF 465-495 MHz Theory Of Operation ...............................9-4 Antenna Matching Network, VHF 146-174 MHz Theory Of Operation................................4-4 Antenna Switch, UHF 403-440 MHz Theory Of Operation..................................................7-3 Antenna Switch, UHF 438-470 MHz Theory Of Operation..................................................8-3 Antenna Switch, UHF 465-495 MHz Theory Of Operation..................................................9-3 Antenna Switch, VHF 146-174 MHz Theory Of Operation..................................................4-3 Audio Circuitry Theory of Operation ....................................................................................3-4 Audio Power Amplifier Theory of Operation ........................................................................3-5

B Battery Gauge Controller Theory of Operation....................................................................3-4 Boot Mode Control Controller Theory of Operation.............................................................3-4

C Computer Software Copyrights .............................................................................................. ii Control and Indicator Interface Controller Theory of Operation ..........................................3-2 Controller Theory of Operation............................................................................................3-1 Controller.......................................................................................................................3-1 Microprocessor Circuitry..........................................................................................3-1 Memory Usage ..................................................................................................3-2 Control and Indicator Interface ..........................................................................3-2 Serial Bus Control of Circuit Blocks ..................................................................3-2 Interface to RSS Programming .........................................................................3-3 Storage of Customer-Specific Information.........................................................3-3 Sensing of Externally-Connected Accessories..................................................3-3 Microprocessor Power-Up, Power-Down and Reset Routine............................3-3 Boot Mode Control.............................................................................................3-4 Microprocessor 7.3975 MHz Clock....................................................................3-4 Battery Gauge ...................................................................................................3-4 Audio Circuitry ...............................................................................................................3-4 Transmit and Receive Low-Level Audio Circuitry ..............................................3-4 Audio Power Amplifier .......................................................................................3-5 Internal Microphone Audio Voice Path ..............................................................3-5 PTT Circuits .......................................................................................................3-6 VOX Operation ..................................................................................................3-6 Programming and Flashing Through Microphone Jack .....................................3-6

D DC Power Distribution Theory of Operation ........................................................................2-1 DC Regulation and Distribution Theory of Operation ..........................................................2-1 Disclaimer............................................................................................................................... ii Document Copyrights............................................................................................................. ii

INDEX

E F Foreword ................................................................................................................................ ii Fractional-N Synthesizer, UHF 403-440 MHz Theory Of Operation ...................................7-5 Fractional-N Synthesizer, UHF 438-470 MHz Theory Of Operation ...................................8-5 Fractional-N Synthesizer, UHF 465-495 MHz Theory Of Operation ...................................9-5 Fractional-N Synthesizer, VHF 146-174 MHz Theory Of Operation ...................................4-5 Frequency Generation Circuitry, UHF 403-440 MHz Theory Of Operation.........................7-4 Frequency Generation Circuitry, UHF 438-470 MHz Theory Of Operation.........................8-4 Frequency Generation Circuitry, UHF 465-495 MHz Theory Of Operation.........................9-4 Frequency Generation Circuitry, VHF 146-174 MHz Theory Of Operation.........................4-4

G H Harmonic Filter, UHF 403-440 MHz Theory Of Operation ..................................................7-3 Harmonic Filter, UHF 438-470 MHz Theory Of Operation ..................................................8-3 Harmonic Filter, UHF 465-495 MHz Theory Of Operation ..................................................9-3 Harmonic Filter, VHF 146-174 MHz Theory Of Operation ..................................................4-3

I Interface to RSS Programming Controller Theory of Operation..........................................3-3 Internal Microphone Audio Voice Path Theory of Operation ...............................................3-5 Introduction, UHF 403-440 MHz Theory Of Operation........................................................7-1 Introduction, UHF 438-470 MHz Theory Of Operation........................................................8-1 Introduction, UHF 465-495 MHz Theory Of Operation........................................................9-1 Introduction, UHF Schematic Diagrams, Overlays, and Parts Lists .................................. 11-1 Introduction, VHF 146-174 MHz Schematic Diagrams, Overlays, and Parts Lists .............6-1 Introduction, VHF 146-174 MHz Theory Of Operation........................................................4-1

J K Keypad, UHF 403-440 MHz Theory Of Operation ..............................................................7-7 Keypad, UHF 438-470 MHz Theory Of Operation ..............................................................8-7 Keypad, UHF 465-495 MHz Theory Of Operation ..............................................................9-7 Keypad, VHF 146-174 MHz Theory Of Operation ..............................................................4-7

L List of Figures.......................................................................................................................viii List of Tables ......................................................................................................................... ix

M Memory Usage Controller Theory of Operation ..................................................................3-2 Microprocessor 7.3975 MHz Clock Controller Theory of Operation....................................3-4 Microprocessor Circuitry Controller Theory of Operation....................................................3-1 Microprocessor Power-Up, Power-Down and Reset Routine Controller Theory of Operation3-3

November 24, 2003

HKLN4216A

INDEX

N Notes For All Schematics and Circuit Boards, UHF .......................................................... 11-1 Notes For All Schematics and Circuit Boards, VHF 146-174 MHz......................................6-1

O P Power Control, UHF 438-470 MHz Theory Of Operation l ..................................................8-4 Power Control, UHF 403-440 MHz Theory Of Operation....................................................7-4 Power Control, UHF 465-495 MHz Theory Of Operation....................................................9-4 Power Control, VHF 146-174 MHz Theory Of Operation ....................................................4-4 Product Safety and RE Exposure Compliance....................................................................... ii Programming and Flashing Through Microphone Jack Controller Theory of Operation .....3-6 PTT Circuits Controller Theory of Operation .......................................................................3-6

Q R Receiver Back End, UHF 403-440 MHz Theory Of Operation ............................................7-2 Receiver Back End, UHF 438-470 MHz Theory Of Operation ............................................8-2 Receiver Back End, UHF 465-495 MHz Theory Of Operation ............................................9-2 Receiver Back-End, VHF 146-174 MHz Theory Of Operation ............................................4-2 Receiver Front End, UHF 403-440 MHz Theory Of Operation............................................7-1 Receiver Front End, UHF 438-470 MHz Theory Of Operation............................................8-1 Receiver Front End, UHF 465-495 MHz Theory Of Operation............................................9-1 Receiver Front-End, VHF 146-174 MHz Theory Of Operation............................................4-1 Receiver UHF 438-470 MHz Theory Of Operation .............................................................8-1 Receiver, UHF 403-440 MHz Theory Of Operation.............................................................7-1 Receiver, UHF 465-495 MHz Theory Of Operation.............................................................9-1 Related Publications............................................................................................................... x

S Sensing of Externally-Connected Accessories Controller Theory of Operation ..................3-3 Serial Bus Control of Circuit Controller Blocks Theory of Operation ...................................3-2 Service Aids ........................................................................................................................1-2 Six Layer Circuit Board, UHF .............................................................................................. 11Six Layer Circuit Board, VHF ..............................................................................................6-3 Speaker and Microphone Parts List, UHF......................................................................... 11-3 Speaker and Microphone Parts List, VHF 146-174 MHz ....................................................6-3 Speaker and Microphone Schematic, UHF ....................................................................... 11-3 Speaker and Microphone Schematic, VHF 146-174 MHz...................................................6-3 Storage of Customer-Specific Information Controller Theory of Operation .........................3-3

T Test Equipment, Service Aids, and Service Tools ...............................................................1-1 Test Equipment....................................................................................................................1-1 Service Aids ..................................................................................................................1-2 Transmit and Receive Low-Level Audio Circuitry Theory of Operation...............................3-4 Transmit Power Amplifier, VHF 146-174 MHz Theory Of Operation ...................................4-3

HKLN4216A

November 24, 2003

INDEX

Transmitter Power Amplifier, UHF 403-440 MHz Theory Of Operation ..............................7-3 Transmitter Power Amplifier, UHF 438-470 MHz Theory Of Operation ..............................8-3 Transmitter Power Amplifier, UHF 465-495 MHz Theory Of Operation ..............................9-3 Transmitter, UHF 403-440 MHz Theory Of Operation ........................................................7-3 Transmitter, UHF 438-470 MHz Theory Of Operation ........................................................8-3 Transmitter, UHF 465-495 MHz Theory Of Operation ........................................................9-3 Troubleshooting Tables, UHF............................................................................................10-1 Troubleshooting Table for Board and IC Signals, UHF .....................................................10-6 Troubleshooting Table for Board and IC Signals, VHF 146-174 MHz .................................5-6 Troubleshooting Table for Receiver, UHF .........................................................................10-1 Troubleshooting Table for Receiver, VHF 146-174 MHz .....................................................5-1 Troubleshooting Table for Synthesize, UHF......................................................................10-3 Troubleshooting Table for Synthesize, VHF 146-174 MHz .................................................5-3 Troubleshooting Table for Transmitter, UHF .....................................................................10-4 Troubleshooting Table for Transmitter, VHF 146-174 MHz .................................................5-4

U UHF 403-440 MHz Theory Of Operation ............................................................................7-1 UHF 438-470 MHz Theory Of Operation ............................................................................8-1 UHF 465-495 MHz Theory Of Operation ............................................................................9-1 UHF 403-440 MHz Theory Of Operation ............................................................................7-1 Introduction ...................................................................................................................7-1 UHF Receiver................................................................................................................7-1 Receiver Front End ...........................................................................................7-1 Receiver Back End............................................................................................7-2 UHF Transmitter............................................................................................................7-3 Transmitter Power Amplifier ..............................................................................7-3 Antenna Switch .................................................................................................7-3 Harmonic Filter ..................................................................................................7-3 Antenna Matching Network .....................................................................................7-4 Power Control..........................................................................................................7-4 UHF Frequency Generation Circuitry............................................................................7-4 Fractional-N Synthesizer .........................................................................................7-5 Voltage Controlled Oscillator (VCO)........................................................................7-6 Keypad ..........................................................................................................................7-7 UHF 438-470 MHz Theory Of Operation ............................................................................8-1 Introduction ...................................................................................................................8-1 UHF Receiver................................................................................................................8-1 Receiver Front End .................................................................................................8-1 Receiver Back End..................................................................................................8-2 UHF Transmitter............................................................................................................8-3 Transmitter Power Amplifier ....................................................................................8-3 Antenna Switch .......................................................................................................8-3 Harmonic Filter ........................................................................................................8-3 Antenna Matching Network .....................................................................................8-4 Power Control..........................................................................................................8-4 UHF Frequency Generation Circuitry............................................................................8-4 Fractional-N Synthesizer .........................................................................................8-5 Voltage Controlled Oscillator (VCO)........................................................................8-6 Keypad ..........................................................................................................................8-7 November 24, 2003

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INDEX

UHF 465-495 MHz Theory Of Operation.............................................................................9-1 Introduction....................................................................................................................9-1 UHF Receiver................................................................................................................9-1 Receiver Front End..................................................................................................9-1 Receiver Back End ..................................................................................................9-2 UHF Transmitter ............................................................................................................9-3 Transmitter Power Amplifier ....................................................................................9-3 Antenna Switch........................................................................................................9-3 Harmonic Filter ........................................................................................................9-3 Antenna Matching Network .....................................................................................9-4 Power Control..........................................................................................................9-4 UHF Frequency Generation Circuitry ............................................................................9-4 Fractional-N Synthesizer .........................................................................................9-5 Voltage Controlled Oscillator (VCO) ........................................................................9-6 Keypad ..........................................................................................................................9-7 UHF Schematic Diagrams, Overlays, and Parts Lists ...................................................... 11-1 Introduction.................................................................................................................. 11-1 Notes For All Schematics and Circuit Boards........................................................ 11-1 Six Layer Circuit Board.......................................................................................... 11-3 Speaker and Microphone Schematic .......................................................................... 11-3 Speaker and Microphone Parts List ...................................................................... 11-3 UHF Troubleshooting Tables.............................................................................................10-1 Troubleshooting Table for Receiver.............................................................................10-1 Troubleshooting Table for Synthesizer ........................................................................10-3 Troubleshooting Table for Transmitter .........................................................................10-4 Troubleshooting Table for Board and IC Signals .........................................................10-6

V VHF 146-174 MHz Keypad Board Parts List.....................................................................6-22 VHF 146-174 MHz Radio Parts List ..................................................................................6-19 VHF 146-174 MHz Schematic Diagrams, Overlays, and Parts Lists ..................................6-1 VHF 146-174 MHz Theory Of Operation.............................................................................4-1 VHF 146-174 MHz Troubleshooting Tables ........................................................................5-1 VHF Receiver, VHF 146-174 MHz Theory Of Operation.....................................................4-1 VHF Transmitter, VHF 146-174 MHz Theory Of Operation.................................................4-3 VHF 146-1 74 MHz Keypad Board Parts List....................................................................6-22 VHF 146-1 74 MHz Radio Parts List .................................................................................6-19 VHF 146-174 MHz Schematic Diagrams, Overlays, and Parts Lists ..................................6-1 Introduction....................................................................................................................6-1 Notes For All Schematics and Circuit Boards..........................................................6-1 Six Layer Circuit Board............................................................................................6-3 Speaker and Microphone Schematic ............................................................................6-3 Speaker and Microphone Parts List ........................................................................6-3 VHF 146-174 MHz Theory Of Operation.............................................................................4-1 Introduction....................................................................................................................4-1 VHF Receiver ................................................................................................................4-1 Receiver Front-End .................................................................................................4-1 Receiver Back-End..................................................................................................4-2

HKLN4216A

November 24, 2003

INDEX

VHF Transmitter ............................................................................................................4-3 Transmit Power Amplifier ........................................................................................4-3 Antenna Switch .......................................................................................................4-3 Harmonic Filter ........................................................................................................4-3 Antenna Matching Network .....................................................................................4-4 Power Control..........................................................................................................4-4 VHF Frequency Generation Circuitry ............................................................................4-4 Fractional-N Synthesizer .........................................................................................4-5 Voltage Controlled Oscillator (VCO)........................................................................4-6 Keypad ..........................................................................................................................4-7 VHF 146-174 MHz Troubleshooting Tables ........................................................................5-1 Troubleshooting Table for Receiver...............................................................................5-1 Troubleshooting Table for Synthesizer ..........................................................................5-3 Troubleshooting Table for Transmitter...........................................................................5-4 Troubleshooting Table for Board and IC Signals...........................................................5-6 Voltage Controlled Oscillator (VCO), UHF 465-495 MHz Theory Of Operation..................9-6 Voltage Controlled Oscillator (VCO), VHF 146-174 MHz Theory Of Operation ..................4-6 Voltage Controlled Oscillator (VCO), UHF 403-440 MHz Theory Of Operation..................7-6 Voltage Controlled Oscillator (VCO), UHF 438-470 MHz Theory Of Operation..................8-6 VOX Operation Controller Theory of Operation ..................................................................3-6

W X Y Z

November 24, 2003

HKLN4216A