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help me with this headphone amp i ripped out of an old cd player.

post #1 of 2
12/17/06 at 1:49am
Thread Starter 
i had this old cd player (Onkyo DX-C300) that I had before my SCD-CE595, and the disk drive stopped reading CD's. I wanted a headphone amplifier and remembered that the CD player had a headphone amp built into it. I took it out, and got ready to make a me an amplifier, but then I kinda...got stuck. This isn't like any headphone amp I've seen before, because it looks kind of incomplete.



It's weird, because the two cables coming out of it look like they each have one neg, one pos, and one ground, so I'm guessing that each cable is for each channel. I have no clue how it gets its power, though. If it was so small that it could have run off of the ground power or whatever, I'm assuming it wouldn't take any more than a watch battery to power it.

Thanks!
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post #2 of 2
12/17/06 at 2:05am
i would look for the chips datasheet, and hand draw a schematic from the traces on the pcb.
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