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Old November 14th 09, 04:01 PM posted to uk.rec.audio
Brian Gaff
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Posts: 637
Default Yamaha DSP A2070

Well is it one of those dc coupled all through jobbies, if it is, then the
fault could be anywhere after the volume circuitry!

I had one of those Memorex branded tuneramps like this and it ate power amp
modules until, one day, the fault was in the protection circuit and it
welded up the speaker voice coil and trashed the amp completely.


Moral is, be very careful if you do not exactly know where the intermittent
bit is as something else will blow it all up for you courtesy of Mr Murphy.

Brian

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"Dave Plowman (News)" wrote in message
...
I've been given this rather large and heavy AV amp dating from the last
century which is faulty. It will yield a pretty decent mains transformer
even if I scrap the rest.

Basically it started making funny noises from one of the rear channel amps
- and after a few weeks now powers down a couple of seconds after being
switched on. My guess is the speaker DC protection cutting in due to a
faulty output on that amp.

Is it worth attempting a repair?

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Dave Plowman
London SW
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