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Erratic volume from new turntable thru used amp

Just bought used amp. Volume fades then comes back by itself. Sometimes happens every few minutes. Sometimes no problem for 1/2 an hour or so. Sometimes some static . Only two front speaker channels work. Turntable and speakers work ok with a different system. Turntable is only component connected to amp.

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First detirmine if it is only the turntable that is causing this problem, by connecting something else to another terminal. If that works fine it will be the cartridge preamp that is causing the problem. From what you describe it sounds like an IC that is playing up.
If the other device plays up as well as the turntable, I still suspect an IC, but this time in the main pre-amp. The reason I suspect an IC is that by the sound of things both channels are playing up and therefore it has to be somepart that has both channels going in and out of it- thus IC!

Posted on May 10, 2010

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petraman7
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SOURCE: erratic volume from new turntable thru used amp

Glad to hear you got things worked out

-Scott

Posted on Apr 18, 2010

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