After the tv is on for about 2 hours we loose the picture and it goes to a grey screen that says unusable signal.The sound stays on. It is getting worse. We have to turn the tv off for about 1/2 hour before it will work again. We have direct TV with Tivo. Please Help.
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Re: Picture goes out, sound stays on
I am not familar with that particular set, but this is what I would check (assuming you don't have a surround sound system hooked up to it as it would sound like a tuner problem otherwise). If you have external Audio/Video jacks with cables hooked up to the Direct TV box, move the video cable and see if you lose video when it is jiggled. If so, you either have a bad cable or connection/connector. When you say you have to turn the TV off for about 30 minutes, do you leave the directTV box on? If so, then the problem seems to be with the TV. Otherwise, maybe the direct TV box is at fault -- leave the TV on and turn off the cable box for a half hour and try it again. You have a few possibilities here, good luck.
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If there is sound, no doubt, its signal input is OK. The problem must be to your Tv itself. If the LVDS cable, the cable that connects between the T'Con board and LCD panel have a loose contact, this type of faultcan occur. Re-seat this cable once, and check. If you wish to get more details, surf the following link. There are over two thousand and four hundred posts. All are related to television and other domestic electronic
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This is usually caused by the tuner which loses the chrominance part of
the NTSC signal. Your did not say how you have it connected but it you
try using a composite video input (yellow jack) and get the color OK
than it must be the tuner which is not cheap but is worth having
Hope Ya Fix it!