Question about LG 50PX4DR 50 in. Plasma TV

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Blinking screen I turn on the tv after it has been off for awhile, or not long at all, and the image is there for 5 seconds, then flashes to a gray screen for 1 second, it will do this about ten times then stop??  Any help would be great!

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Power supply blown
This is often caused by a dry joint at C669 in the snubber network but also check the mains bridge rectifiers reservoir capacitor (47uF, 385v) for o/c, this item is not included in the ususal p.s.u repair kits and if not checked may result in a repeat blow up !

Posted on Nov 24, 2007

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