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TX-SR705 Hum problem

I have a TX-SR705 with the same problem. The noise started 2 weeks ago, about a year after I bought it. I hear a low level hum in all speakers on all channels (DVD, CBL, AUX, GAME, etc.). Seens to be a huge problem with +/- 1 year of operation.

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This a problem of input grounding,the cable input is already loose or crack solder that why you hear a hum or distorted sound because not properly grounded it is a loose contact already thats why also is need to warm up and it will come.First change the cables with a new one with identical size and value then if problem still exist open the back cover ,when open look for the cable input connection parts joints reworks or resolder all soldered joints there .Then checks if it works then cover the unit.If you have no knowledge of electronics dont attempt to open to avoid electric shock.Find a electronics repairman or bring this to a authorized electronics repair shop maybe it cost you only $50.

Good luck;

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Regards:
VOTIT

Posted on Jun 29, 2009

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