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Vizio VW26L HDTV10F. If I unplug for a day, It works fine for a while. Then it goes out, no pic, or sound. If I leave it plugged in it won't come up at all although the yellow light goes out as it normally does. I changed all the caps in the power supply, when it's working all voltages look clean (no excessive ripple) and correct.

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In that case you have a cold/imperfect soldering - when the tv heats up it breaks contact. You must check every single soldering with a magnifying glass - if you move the components the defect will be easier to spot.

Posted on Aug 28, 2010

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