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I have problem in the bottem and top of the screen. it has odd colors and giving dubble picture only the few inches lower and little at top of the screen.

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This is a convergence problem. Please supply us with the make and model so we can post more details to resolve this.

Thanks,
Dan

Posted on Sep 10, 2008

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My Sony Projection TV middle of the screen curves down on top and curves up on bottom. Picture looks dubble like 3D, screen looks like concaved. Left side of the screen color is light green and blue, right...


This is a very common failure on Projection sets. Its called a convergence problem.
You may have one or more of the following symptoms.
Screen looks 3D
Colors don't line up
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed or warped.
No Audio / No Video - Makes Chirping Sounds
You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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turn your red screen voltage down till you get grey, your convergence out puts will need replacing
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Check the resistors right next to the Convergence ICs often 1 or 2 of them go oen when the ICs fail.

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It looks like the STK chips need to be replace for fix the distorted colors.
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http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

convergence amp ic bad

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