Q30 has got so hot it burned the board and de-soldered itself and is completely missing. I don't have access to my schematics. Does this transistor drive the UC3526ADW? The traces are burned but it looks to connect to Vcc and Vref? Any idea what the part number is for this transistor?
Amplifier is fixed, I found the following problems.
Q30 burned off board and missing,
R77 out of tolerance
R78 out of tolerance
U1 defective
C16 defective
C94 defective
After replacing these components amplifier is up and running and produces rail, regulated, and clean audio. This is an update for the forum in case anyone else has this issue.
Q30 burned off board and missing,
R77 out of tolerance
R78 out of tolerance
U1 defective
C16 defective
C94 defective
After replacing these components amplifier is up and running and produces rail, regulated, and clean audio. This is an update for the forum in case anyone else has this issue.
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