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ID this component/ smokey

Posted: Fri Apr 17, 2026 7:33 pm
by vib_ribbon
Hi.

I've been enjoying my old arpicade a lot recently. Tonight, while I was playing a particular game, I noticed the sound was missing. When I powered my supergun down to restart it to see if it made any difference, this component on the board literally went up in smoke. :o

Can you tell me what it is so I could get it replaced? Hopefully that will fix it? Thanks.
2026-04-17-20-31-52-622.jpg
2026-04-17-20-31-52-622.jpg (135.28 KiB) Viewed 3818 times

Re: ID this component/ smokey

Posted: Mon Apr 20, 2026 7:03 am
by dee2eR
Thats an AN7511 audio amp chip.

Replacing it should see you fixed up but it's also worth having a look at your 12v in case it helped the chip fail.

Also, please join us over at arpicade.net - it's the latest version of this forum.

Re: ID this component/ smokey

Posted: Fri Apr 24, 2026 7:47 pm
by vib_ribbon
Hi.

Arpicade.net is not sending me my activation email, can you check for me under the same username?

Also, I changed the AN7511 but still no sound. It's definitely getting 12v. Tried it on both my cab and supergun. Is there anything else I could do to narrow down the problem? Thanks.

Edit:
I decided to upgrade my pi3 to a pi5.
I also plugged some speakers directly to the DAC and I get sound from there, so the fault must be further down the circuit.
I put my finger onto the an7511 and it's very hot to the touch, the same with the pi5's CPU. I think I'll need to get the fan for the pi5.

Re: ID this component/ smokey

Posted: Mon Apr 27, 2026 10:17 am
by vib_ribbon
I fixed it!! :D

The 3.5mn headphone socket was soldered rather poorly at an angle, so I guess when I removed the pi to do the an7511 repairs, I must have pushed/ pulled on it too hard so the ground pin was no longer making connection. I patched it with an ugly wire and now we have found again.