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 Post subject: AMP ID and burnt resistor help
PostPosted: Tue Aug 29, 2017 9:27 am 

Joined: Tue Aug 29, 2017 9:11 am
Posts: 1
Hello all!

I have what I think is a MS2250 TA. REV E

It has some burnt resistors and only passes very low audio.

R169, R128, R228, R225 are burnt. They look like 1/4w from the power rails into the differential amp section ( very rough guess)

Wondering what may have caused that? History? I could just replace them, but sure seems like they may have failed for a reason.

So far nothing else seems bad. checked a few of the transistors for shorts, caps do not seem to be leaking etc...


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