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RCA REAR PROJECTION 60 INCH PURCHASED 1/2000

COLOR DISTORTION AND CONCAVE AT TOP AND BOTTOM OF PICTURE

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This is a problem with the convergence circuit. If you can solder, you should be able to fix this yourself. Please post the model number as a comment to this and I'll provide you with additional details and instructions.

Thanks,
Dan

Posted on Dec 24, 2008

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We have a philips projection tv 60PP920217F we can not alighn the blue color the picture is concaved on bottom and top


This is a convergence problem and can be repaired by replacing the two STK-392-120 convergence chips and adjusting the set with the original remote control

I have specific instructions for this repair from start to finish.

SD TECH

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I have a Mitsubishi 55 inch rear projection tv, ws55819 on which the convergance is gone bad. I'm getting a concave picture with multiple colors and black lines with a blurred picture. this happens mutiple...


Your reference to concave picture suggests a high voltage problem and not convergence. If the raster can't scan from left to right , top to bottom, your having High voltage trouble. if your colors are not dropping on top of each other that is convergence. I would suggest it may be time to consider a purchase of the new HD set for the cost of this repair. good luck

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1 Answer

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thats usually a convergence IC failure, Are you able to move the red and blue colors in the convergence adjustment menu?

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Sounds like some kinda convergence problem. Can you post an image please?

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The convergence ICs are located on the left board on a huge heatsink they should be STK392-110 or STK392-120. You can get replacement ICs at the following link and they also provide free step by step instructions on how to remove and install the new ICs.
http://servicemanuals.vstore.ca/

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2 Answers

61 inch proj. warped concave picture.


Josh Any chance you could send a photo... Too many ideas come to mind from what you've described. Would actually have to see the "warp" in the picture itself to see if it's one or all colors, any boarders and if the bend is actually pulling from top or bottom.. Bill premtech@willapabay.org

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