Question about Zenith R40W46 40" Rear Projection HDTV-Ready Television

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Loud electrical sound in rear of set(tv)

When pressing the on/off switch, the tv makes a loud welding noise ans is also spark producing and the unit has no picture of sound.the tv is only 2 years and 7 month old.

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Re: loud electrical sound in rear of set(tv)

Sounds like the High voltage is leaking out and arching somewhere. Have a look in the back and see where it is BUT be CAREFULL!! This is enough voltage to cause serioud harm to you. If you have no TV repair experience, this is not the repair to start experiementing with. Play it safe and call out a pro to assist you. Good Luck.

Posted on Mar 31, 2007

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To sum up, the loud humming is caused by out of spec components or for that matter dried up used up components, the fact it runs for hours at a time is most likely weather dependant and if not its likely to be a dry joint somewhere on the board. These are also unfortunately largely dependant upon environmental conditions. Best of luck. :o)

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