Rebuilding a HTC Music Adapter (EMU Headphone Adapter)
Wassup?
After having at _least_ THREE ‘g1 headphone adapters’ die on me within the space of 5 months, and having to spend more then $10 a piece to replace them, I got sick of paying for these rubbish wires. The phone is great but the headphone adapters are not, but I managed to pull my self a Hi-Fi one with just a bit of DIY and Tape.
What you need:
(Minimum)
- A lighter
- Electrical Tape
- Wire Strippers
- Something with a 3.5 audio jack on the end (In my case, half of a audio splitter)
Connecting the wires:
First at the tip of each wire you see after stripping the coat from the original EMU connector cord, run a flame from the lighter under the wire until it catches fire, then blow it out. This exposes the wire by removing the chemical coating.
The annoying part about these (And I didn’t care to do much trial and error as to what does what) is that with Android, if several wires are not connected it won’t detect it as headphones.
In order to wire this up, you should have left, right and ‘center’ (gnd) coming from your 3.5 jack. See picture (http://graysblog.org/wp-content/uploads/2009/09/IMAG0010.jpg). All bronze / semibronze wires should be tied together and used as the gnd/center (at the ends where they were opened by burn). The blue and the white wire are microphone / button wires. You can safely set them aside.
The red(Organish) and green wires are respectively, right and left channel. See picture.
Wires all done:
http://graysblog.org/wp-content/uploads/2009/09/IMAG0010.jpg
Taping it all up:
Alright this is pretty simple, the way I like to do it is a strip of tape on every separate connection you make, then tape everything up. I’d advise listening to the headphones while doing this, the risk of shortage is low and it ensures that it works. No solder or mess. And for lazy people like me little work
Finished Product
And.. It's done
Surprisingly this works well, and the audio quality is great.
I apologize for the crap quality of this ‘miniguide’, I was rushed and just wanted the info out there
References:
(Soldering the wires)
http://hackaday.com/2009/05/24/soldering-headphone-wire/
http://www.alexwhittemore.com/?p=205
(Pinout)
http://androidforums.com/t-mobile-g1/4480-how-create-emu-3-5mm-headphone-jack-adaptor.html