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Toshiba - 50H13 Projection TV

When I first turn on my tv, I get wavy lines across the whole screen. This started out just at the top 6 to 8 inches and has progressively gotten worse. It goes away after a few minutes but is progressively getting worse. Thanks

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Re: Toshiba - 50H13 Projection TV

There is a large metal case behind the input board in the back of the set called the hyper board that needs to be replaced.Good Luck

Posted on Oct 08, 2007

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We have a samsung rear projection tv with the same problem of fine wavy lines across the whole screen,more visible with light and dark colours, its like watching the tv with fine rain, sometimes the...

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if it is wavy lines across the top it is probably the scan converter/ hyper bd they are becoming hard to find/expensive you can repair them but it requires many surface mounted capacitors and requires some VERY skilled soldering.

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