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Hissing Sound When I turn on the TV I hear a hissing sound which subsides after about 30 minutes. How can I get rid of that Sound?

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Re: Hissing Sound

A hissing sound that comes from the back of the set (not from the speaker) usually indicates a high voltage leak, most likely around the "suction cup" at the top of the picture tube or around the flyback transformer. Remove the back of the set and turn it on, and when you hear the hissing sound, shut off all the lights in the room and you should be able to see a purple-ish or white-ish glow from the spot that is hissing. Shut the set off, discharge the high voltage and clean and seal the problem area. Of course this should be done by someone experienced with stopping high voltage leaks.

Posted on Jun 28, 2007

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