Question about Toshiba 57H83 57" Rear Projection HDTV

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Toshiba 57H83 57inch blown out blacks

I have a toshiba '57 rear projection who is 8 months out of 4 year extended best buy warranty. The other day when turning it off, we noticed a low light bright spot at the bottom of the screen that held. It appears that the contrast control is at a loss suddenly. Less separation between whites and blacks.The screen can't seem to hit black levels well and the image seems blown out on the white ends. In the black ends it gray instead of white. Any suggestions?

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techman
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SOURCE: Toshiba 65hx81 65" Rear Projection tv. black & white color/green

Yep, your problem is a relatively easy one to repair if you know how to solder. You better repair it before it blows the fuse though. There are two capacitors in the main power supply that are coming loose and need to be re soldered. There is a Toshiba service bulletin about it. They are marked C809 and C810 on the main power supply board. Good Luck

Posted on Sep 05, 2007

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My guess is one of the CRTs is arcing inside. This TV has 3 CRTs red, green and blue. Replacing a CRT is not easy or cheap to buy if you can find it. If you like this try calling a TV technician to track down the high voltage arcing. DO NOT TRY TO DO THIS BY YOURSELF.

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Yep, your problem is a relatively easy one to repair if you know how to solder. You better repair it before it blows the fuse though. There are two capacitors in the main power supply that are coming loose and need to be re soldered. There is a Toshiba service bulletin about it. They are marked C809 and C810 on the main power supply board. Good Luck

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Black out ?


There could be bad solder connections on C809 and C810. There was a technical bulliten on this problem a while back agao. good luck

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