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If it tests out of circuit and passes, you can fix that broken leg. I wouldn't dump her just for having a broken finger.RIP…desolder was perilous, we have casualties…funeral planning commencing for the MB3110A at IC4…
Repairable also. Don't pitch it.Welp…burned a trace too, I tried on this one, definitely better with cap desolder![]()
The horror can't go on, LMAO. Mike Kessler!! Time to go to Mike!! I gotta fold my cards at this point. After Burner sound amp = royal flushRepairable also. Don't pitch it.
You may be able to salvage the majority of the trace you pulled. Lay it back down and epoxy in place. You can also run a jumper between those two pins.
Or you can send it out before the blood and gore continues![]()
I'm not sure. He said he flipped it and gets sound out of the same speaker.So you know your PCB is good. Frankly, I'd be happy about that!
You have an audio board issue it seems. Commence with the stuff that's been suggested here.
What this test did was pushed the R PCB output - which we know works - through the left channel. That good signal is dying somewhere in the left path.I'm not sure. He said he flipped it and gets sound out of the same speaker.
That sounds like a connection issue to me. I'd suggest ringing the wires from the dead speaker to the connector and try to find the break.
What this test did was pushed the R PCB output - which we know works - through the left channel. That good signal is dying somewhere in the left path.
The left PCB output - which we didn't know for sure was working - was then outputted in the right side speaker. So the PCB is pushing audio on both channels as expected.
I suppose it's possible that it's the incoming connection at the amp board itself or wiring to the speaker. That could be confirmed with an audio probe or like you said, testing that left speaker wire from speaker to amp board connection.
But he did say the connections are tight and/or redone and he has some power at the speaker itself.
I replaced both, yes. Reflowed solder all across the amp. Immaculate. Sound flipped back in the cabinet. I'll have to look at mb3733.So the pcb is good and both the mb3110 are good? Have you replaced both?
Since you get audio on one channel you also have a working mb3733 on the good channel.
That would point to the faulty channel's mb3733 as a potential culprit. Take the signal of pin 1 of the good mb3733 and feed it to the signal of pin 1 on the suspect mb3733. You know you have a good input signal, if you get nothing out, I would look at replacing the suspect mb3733.
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