How-To: build a Nokia Pop-port to feminine mini jack When Nokia declared their music player capable phones they neglected to say the dearth of support for external headphones. Since the discharge of the 6230 and its connected family with mp3/aac playback support, several dissatisfied users have created their home-brew cables to enter headphones. These days we are going to show one such mod for the Nokia HDS-3 cable. This cable ships with the 6230 and alternative Nokia phones capable of stereo playback.
Before beginning, a quick summing up of another Nokia models of pop port headphones and audio adapters added. Nokia HS-3 "Nokia Stereo Fashion Headset" white or black, smaller push to speak unit than the HDS-3, headphones square measure still of associate degree inferior audio quality Nokia HS-8 "Nokia Activity Headset" ugly and dangerous audio quality headphones
Nokia HS-6 "Display Headset" show|LCD|digital display|alphanumeric display} display and controls for audio and calls, however all over again no port to enter your headphones Nokia HS-23 "​Nokia Stereo Headset" includes volume management, lesser quality Headphones Nokia AD-15 "​Nokia Audio Adapter" permits you to enter your headphones, sadly this can be achieved with a giant box on the top of the cable, there's no mic, and as a way, as we will tell no button to change tracks.
Even telephone receiver models that aren't offered on the market nonetheless do not leave the buyer to enter their headphones. Why Nokia? Why! For some we tend treks we assumed that the audio quality beginning of our 6230 was even as dismal because the headphones within the HDS-3 telephone receiver crystal rectifier North American country to believe. The astonishing half is that no, the audio quality of the 6230 is appreciated most mp3 players on the market making you manufacture your adapter cable. The second mistake by Nokia is that the information on what quantity memory must be recognized on the MMC cards. The phone will acknowledge MMC cards up to one gig. To visualize if your phone's computer code is up to this point enough to figure thereupon a lot of memory, within the 6230 type: *#0000#. On the screen, you ought to see one thing similar to: Nokia 6230 V 05.24
25-11-04 etc. The necessary info during this is, in fact, the computer code version on the second line, during this case five.24. If your phone isn't up to this point, you'll be able to have the computer code flashed at the most cellular phone supplier stores. Note that computer code upgrades can wipe the memory of the phone, thus make sure to avoid wasting necessary information before upgrading. The computer code of the 6230 beginning with version four.44 ought to properly acknowledge one gig of memory on the mic, However, might not search the subdirectories on the cardboard for music files to incorporate within the playlist. Before this loading audio on the MMC card, we advise you format it during a card reader on your laptop instead of on the phone. Format the cardboard, re-name the carton, then fill that one gig of happiness with a playlist of mp3/aac and mp4 if you have got a Nokia model that supports it.
You will like for this how-to: a hand tool, a knife of some kind, a multimeter, a file, a Nokia stereo telephone receiver (we are victimization the HDS-3. However you ought to be ready to extrapolate to a different on the list above), a cable with a feminine mini jack (3.5 mm) instrumentation on one finish, or if you have got a cable solely with a male mini jack instrumentation you may conjointly need a mini jack feminine to mini jack feminine adapter. You'll conjointly like a tiny low Philips screwdriver looking on the model and build of your Nokia telephone receiver. The Nokia HDS-3 (ships with several Nokia models together with the 6230): 3342,33443
The HDS-3 has many flavors: the older models have four screws on the rear of the push to speak module. If you have got this model, initial take away the screws. Currently, for each model, we tend to square measure able to pop open the instrumentation. We tend to use a knife to rigorously separate the front from the rear of the push to speak unit within the middle of the cable: 3360 Once the unit is open, check to visualize if the speaker is on the front or the rear of the group. The likelihood is if you have got a model with screws, your solder points for the headphones square measure already visible. If you have reached the newer model while not screws on the surface, you need to pry up the printed circuit and flip it over currently rigorously. 3364 If you have got the newer model your printed circuit ought to agree with this: circuit 02 Note the connections on the printed circuit. The ​headphones Nokia provides square measure connected to (from left to right) L-, L+, R+, R-. These square measure the points that we tend to square measure currently progressing to de-solder: 3367 Your de-soldered printed circuit can currently look anything like this: 3368 Next prepare your feminine mini jack cable by cutting it to the specified length (we selected a range of concerning eight centimeters). This length is however long the mini jack cable extends out from the push to speak unit. Clear the wires feat a 0.5 metric linear group of protecting every so that they square measure to the surface of the audio cables: 3365 Determining that is correct and left within the mini jack cable is simple if the colors of the wires square measure red and white. Red is correct, and white is gone. instrumentation on a cable that has been equally denudate. Take a look at the male mini jack instrumentation with a multimeter and note the wiring, as an example, our
male mini jack instrumentation was (where the tip is that the advice of the instrumentation, the ring is that the middle and sleeve is that the base): TIP orange RING yellow SLEEVE ground This meant that our mini jack feminine instrumentation would have a similar pinout as a result of the feminine and male mini jack during this case was cut from a similar cable. Allow us to assume for a flash that your male mini jack instrumentation came from a special cable and had this pin-out: TIP white RING red SLEEVE ground We would then merely plug the male mini jack into the female mini jack and take a look at the cable with a multimeter to see the pin-out. In the example noted above: TIP white === orange male RING red === yellow feminine SLEEVE ground === ground Now we will extrapolate from the fact that on tip-ring-sleeve vogue instrumentation the pin-out for L/R/ground is:
TIP left RING red SLEEVE ground This leaves ​North American country​ with the wiring to the printed circuit as follows:
TIP went orange RING right yellow SLEEVE ground ground So to solder to our printed circuit, we are going to have: L- ground (remember we've got a pair of grounds that we tend to split above) L+ orange R+ yellow R- ground (here is that the second round) Your diagram could also be a touch completely different looking on the colors of your feminine minijack cable. A conventional example would be: L- ground (remember we've got a pair of grounds that we tend to split above) L+ white R+ red R- ground (here is that the second round) As noted on top of, we tend to split the grounding cable into two components. Next tin your wires (prepare them with a touch of solder on them) and trim them down. Solder them onto the points on the printed circuit of the push to speak unit following the diagram you have got created yourself with the tip-ring-sleeve clarification above: 3374 Now file a rounded notch to let the cable exit out of the highest center of the push to speak unit. You merely ought to present the groove into the backside of the group (the aspect while not the button): 3375 Next gently push the printed circuit back to place. Nudge the new mini jack cable into the notch you've got merely made: 3377 3378 HDS-3 with the four screws on the rear, your completed circuit can seem like this before you close up it back up: 3361
Now snap the 2 aspects of the push to speak unit back along, and if you had screws, replace the screws. Alternately, if you would like to vary the fugly beige color of the group, do this before you close up the group. Tape off the button and therefore the base cable. Bust out that black nail varnish from your goth section or some black hobby model paint from that Indian chief whirlybird you ne'er finished. Instead, you'll be able to choose an additional spirited color to match your colorware laptop. Provide the unit 2 coats of paint, feat time for it to dry between coats. If you do not dig paint, you'll be able to conjointly choose the ghetto black electrical tape look (see below for associate degree example). Here is that the completed unit (unpainted) with a combine of not-so-stellar sony in-ear headphones and a Nokia 6230: 3382 Version 01 with ghetto black electrical tape, a male mini jack instrumentation, and feminine to female mini jack adapter and therefore the same not-so-stellar sony in-ear headphones: 3340 The completed cover version cable with a delicious combination of Sony professional headphones: 3385 If you're feeling swashbuckling and it would like of analog volume management on the push to speak unit, jump over to hack-a-day to browse the advanced How-To. Nokia, if you're listening, please embrace ports for traditional headphones on the phone itself and if not, a minimum of within the cables that square measure supplied with the phone.