Question about Toshiba 55H70 55" Rear Projection Television

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Bad picture there are half moon lines starting at one side of the tv and going to the other side they are at the top half of the tv. They are red and green. the picture is black on the top of the screen about a inch,. Can someone please let me know if this is fixable and what the price range would be to fix?

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Try to consider the following tips:

Smearing out of one or several colors, best seen in txt-mode, my 27CE4599/30R smeared out in red and green, not in blue, fully exchanging the drivers (input and output complete, otherwise the RGB driver will blank the crt) moved the fault to the other color
Replace the 180K feedback resistors in the amplifiers with normal 1/4W metal film instead of 1/8W, they can become open circuited (in mine both green and red were faulty in this way). Change all 3 and not just the defective ones, replace also all the paralleled 75K resistors per color (fe by 47K+27K) to prevent bright color raster (they can also become open circuit)

Posted on Nov 29, 2007


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