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Asked
Headphone jack output static in both channels
My iPhone 3GS headphone outputs static in both channels - I'm almost certain I fried the output amplifier. Will the replacement headphone jack fix this problem?
In other words, is there a new amplifier on the headphone jack assembly, or is the amplifier built into the main logic board and this headphone jack just connects to it?
Thank you!
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Answered
The headphone jack assembly is just the ribbon cable; no ICs. You have tested to be sure that the issue is not your headphones are potentially a shorted or damaged cable correct?
Edited by: Phillip Takahashi ( )
I've tested with another pair of headphones, and I suspect i destroyed the output amp by connecting the phone to a questionable circuit (of my own design...) Is it possible to fix the output amp in the phone?
Unfortunately I would have to say no, not with the kind of gear the every day (or even above average) person would have at home. You would have to 1: find the correct chip that's damaged (it may be more than 1?), 2: find the exact replacement, and 3: have specialized re-balling equipment and techniques. You could try to replace the chip using just a heat gun...but I doubt you'd be able to be accurate enough with the heat or the chip to get a proper seat. Sorry I couldn't be of more help.
