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crwdns2934241:0crwdne2934241:0 Terrance Hudson

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I had a plasma (as opposed to a LCD) and it did this and it was the logic board dying. I would suspect something similar is happening with yours. The repair parts alone were more expensive than a new TV, however your case may be different.  A quick google with your exact model # and "logic board" may get you the answers you need.

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open