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I have recently purchased a Parasound HCA 2205A and am having some problem with a buzzing through my speakers. It seems to be some interference caused by my TV, a Sony Trinitron ( a couple of years old ). When I have only the amp on ( ie: no preamp, DVD player, nothing else ) and turn on the TV there is a noticable buzz through the speakers. There is no physical connection from the TV to any other component of my HT system and the cable TV line is disconnected. When I move the TV out of the entertainment center, away from the amp, the buzzing decreases until it is gone when I have the TV moved out a couple of feet. So, it's a proximity problem; but I would really like to have the TV and Amp live in the same entertainment center. Is there some kind of shielding I can use ?
Follow Ups:
First I would check for a problem coming through the power wiring. You could try a long extension cord to another receptacle to help diagnose.If you determine the problem is airborne, you might still be having problems receiving interference through cables that are parallel or non-shielded interconnects. Make sure all the cables are separated, or if they must cross, cross at 90 degrees. Perhaps you might try a copper sheet of some kind, grounded of course.
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