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Did anyone manage to ``repare'' a buzz, ever?

I have a buzz in my pream. Not a hum (I can cut it off when
I use the 80hz subwoofer crossover). I tried everything known to man to fight it externally (grounds loops, line conditioners, all kind of connections, nightlights, etc.). I strongly believe now that it is an internal problem. I wonder if anyone had experience with any kind of gear with the repare of such ``buzz'' problem. Is it possible to repare and/or worth it? What can cause it internally? Thanks in advance.
alek001

Showing 1 response by blueswan

blueswan
211 posts
 
Make sure the ground connection of your cable TV is clean and solid. Next, I would check if you have any halogen lamp dimmers and/or ceiling fan variable speed controls. These devices throw a huge amount of noise into AC power. If that fails, the repair shop may be the only option left, after you have isolated the problem component by deduction.
Good luck, I know this must be annoying.
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