Absolute LEGEND !!
My headphones sounded like they were dying (well what seemed to be the mic). The vocals were ridiculously quiet and I'd get a lot of distortion. Needless to say I was major ***'d off. So I figured no probs I'll just get myself some new headphones. I shoped around for iPod/iPhone headphones and spent a pretty penny on a few pairs. Of course the Iphone jack is completely different to the iPod jack. I found a rather neat (temporary) solution via 'trimming' the rubber of the jack, this was the plug would be more recessed into the socket and thus appear as the 3.5mm iPhone jack. It sufficed but was nowhere near as good as it's predeccesor.
So then I soldered new headphones to the original 'stock' iPhone headphones. After much buggering about I found out that I could only get the left channel to work appropriately while the right one had to be disconnected completely. Otherwise I would get the low vocals and much infuriating distortion.
Now I searched the web for the pinout of the iPhone cable plug. I figured with my extensive electronics background something like this would be easy. Well the hardest thing was to actually get another sync cable that didn't cost my an arm and a leg. Thankfully the second hand dealer had a few in stock so I grabbed both. Got my pliers out and got to work.
Much (Much..much) thanks to the person above I could now make a suitable replacement for my headphone problems.
I used NO RESISTORS.
To test that it was working I needed NO SOLDERING.
The only soldering I plan to do is to actually physically solder my headphones of choice to this wonderful new addition to my iPhone accessories.
As I have the chance to listen to music while I work, I am eternally grateful.
|Pin 1 = Ground (Connect to Pin 11)
Pin 2 = Audio Ground
Pin 3 = Right Audio
Pin 4 = Left Audio
Pin 11 = Serial Ground (Connect to Pin 1)
Quickly a heads up for other frustrated folks..Pins 1 & 2 are already internally connected in the iPhone so if like me you were wondering how the flip am I going to connect all those wires in that small amount of space it's not required.
I used the sync cable and did thus;
Pulled out all of the pins from the plug, i.e. the USB 5V GND and DATA + & -. You are left with the following wires.. RED, GREEN, WHITE, and BLACK. I attached RED to the RIGHT Channel on pin 3. The white wire to the Left channel on pin 4. The BLACK wire to Pin 1.. Then last but not least the GREEN wire to Pin 11. But what about the connection from Pin 1 to Pin 11 you say, well you don't have to make that connection at the plug connector do you. Then with my headphones..
RED (+) BLACK (GND) --> Right headphone
WHITE (+) BLACK (GND) --> Left headphone
Of course not to forget..
BLACK (Pin 1) also connected to GREEN (Pin 11).
Also if you choose YES to airplane mode you can't receive or make calls which is rather annoying. So I chose NO and my music playing capabilities weren't (thankfully) affected.
I'm thinking it may be wise to also connect an additional standard headphone socket to the headphone wires so that if I want to use PC speakers I can just put that plug into the new socket.. viola iPhone music on the speakers without the headache of messing with dodgy plugs.
The only problem I've got and will hopefully resolve soon is not being able to adjust the volume on the headphones due to the LINE OUT being at max volume all the time. I think a resistor divider network with a potentiometer should do the trick nicely. I'm pretty sure there are headphones out there with built in volume adjustment that probably have that very same setup.
I don't usually rant like this but I am exceptionally happy.. no more friggin distortion and low vocals for me..
Couldn't help myself..
I ripped the plug out of some old speakers, pretty chuffed with how it turned out.
Fixing the focus on the iPhone camera...grr