Question about B&K AVR-202
My bass amp has an awful buzz in it. It buzzes no matter if the knobs are at 0 or 10, whether a bass in plugged in or not. I know it's not the cable, or the bass because I've tried several different of both. If I play the bass it actually goes through the amp, but it's covered with that terrible, loud buzz. Someone else on here had a similar problem with their amp, and the answer given made a little bit of sense, but I had a question about it. He said the "cap" might be out. I don't know what that is. Anyway, could you please help? This is a pretty expensive amp, and I don't have the money for a new one, or to send it to a repair shop. I'm pretty good about fixing these kinds of problems, I just don't know what is broken for me to fix it. Thank you very much
Part of the power supply is a filtering stage that completes the conversion from AC current to DC. The "cap" is a capacitor that furnishes voltage to help smooth the alternating current that is left from the rectifier stage. These will start to fail over time. While it is a relatively simple repair for anyone that does this for a living, I would not suggest this as your first repair. Expect a parts cost inthe $20 range plus the local labor rate for the entire repair.
Posted on Dec 04, 2008
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Posted on Jan 02, 2017
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