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Noticed that my TV was randomly shutting off and on the while watching although a little difficult to describe fine horizontal lines appeared across the screen from top to bottom and the screen appears to be misted with pixels and is more pronounced with dark background I'm still able to watch except for the lines and the irritating frosting of pixels model 42pf7220a/378 can this be fixed and is it wort it I can purchase a new factory 46" reconditioned vizzio for $400

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Sounds like your Logic Board is at fault. It is the little board that has flat cables that go to all the boards around the edges of your set. It is very easy to change, just a couple screws, and the board is not that expensive.

Posted on Apr 11, 2011

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