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Gain on one channel stuck at max

On my NAD 304 ampilfier, one channel is stuck at maximum gain, even with the volume knob all the way down. The other channel seems to work fine. I've checked the RCA connections, and tried a few different inputs (CD / Tape specifically). The problem seems to be in the preamp section, as if I connect an external preamp to the amp section, things seem to work OK. Is this something reasonably common such that I'd know where to look for a DIY fix, or is the amp ready for the bin?

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Hi there

Check for a dry solder joint on one end of the vol control(earthy end). This will be causing your problem. The pot itself may actually be faulty to. You can always get stuff like that, just got to identify it. Check soldering to the pot first.

best regards
Graeme

Posted on Mar 24, 2008

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http://www.overload.it/supporto/643/manuali/NAD-C350.pdf

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