LanceB Posted September 30, 2015 Share Posted September 30, 2015 I have the KA-1000-THX Amp that just started to buzz, even with the input disconnected. The buzz is not too loud, so I am thinking a capacitor went bad somewhere in the unit. The buzz gets louder when the THX switch is turned off. I open the unit, disconnected the preamp connector from the main amp board, and the buzz stopped, so it looks like either the preamp or the power supply is creating the buzz. Any thoughts? Are schematics available? Are parts available? Quote Link to comment Share on other sites More sharing options...
Joe D’Anna Posted January 13, 2020 Share Posted January 13, 2020 Anyone ever reply? I had the same problem and dealt by adjusting the low pass filter. I found this post searching for service info because my unit just started to emit a burning smell...looking inside I think I see a burnt capacitor... Quote Link to comment Share on other sites More sharing options...
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