50PG20/42PG20 POWER SUPPLY TURN ON COMMANDS FROM MAIN PWB
7 In Stand-By Primary side is 90V
AC In
1
In Run (Relay On) Primary side is 370V 5
Stand By 5V Reg
AC Det.
Stand By 5V
3
9
12V/16V Regulators
See Note1
2
Turns on Red LED
Relay On
5
5
6
6
8
M5V (DC Voltage) To Y-SUS, then to Control PWB.
Vs Reg
Vs/Va (DC Voltage)
Va Reg
To Y-SUS, Z-SUS Va routed to X-PWBs
10
12V 16V
5V Det.
M5V Reg
M5V On
Vs On
7
9
NOTE 1: 50PG20 has 12V and 16V to Main at turn on. 42PG20 only has 16V.
12V 16V Video Audio
5V Reg
2
5 AC Det.
Turns on Green LED
5
Both LEDs On Looks Amber Resets Main Board 3
Microprocessor or BCM
Power Button
At point 3 TV is in Stand-By state. Energy Star compliant. Less than 1 Watt
Relay On
4
7 9
Remote Or Key