I have a Yamaha HTR-5560 Receiver. A couple weeks ago, a noticeable, and ver annoying buzzing sound started coming from my speakers. The center channel speaker was loudest, but if I put my ears up to the left and right mains, and left and right rears, I could hear it as well.
I tried to troubleshoot to isolate the source with no luck. What I ended up doing was pulling everything apart and took my receiver out of the entertainment unit. I plugged the receiver into a wall outlet, and then put JUST the center channel speaker wire into the back. That's it. No components were connected. When I turned the receiver on, the buzzing was still there. I toggled through all inputs on the receiver (even though nothing was plugged into the back) and the buzzing could be heard on everything except the tuner input.
Is my receiver shot? It's only 8 years old. It is worth fixing, or can it be fixed? I'm kind of ticked, because it was alot of money to me 8 years ago, and to replace it now ($400-$500) is still alot of money to me.
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