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Our RCA HD tV suddenly started to go off it had a hissing sound when this began.Know the tv will not come on.

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The Hissing is the High Tension electricity. Sounds as if this section has failed. Developed a partial short of some sorts in the HT section or Power Supply. It seems that your unit has some sort of HT side, PSU fault, or a problem to the HT section that is shutting down the Power Supply Unit, PSU. This happens so that no further damage, and possible fire will occur.
You need to take the unit to a reputable service centre/man and ask for a firm "Quote" for the work to be done.

Posted on Feb 04, 2010

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