Question about Sony KP-57HW40 57" Rear Projection Television

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Red and green curved lines when the screen is dark

My SONY KP-57HW40 has red and green curved lines showing when the screen is showing a dark scene. I know a solution has been discussed before, but I cannot find the answer. Any help would be appreciated.

Jagperson

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Your screen controlls are up too high

Remove the front of the tv and look for the focus block

*** with all things electronic be careful and only use one hand to adjust

turn the color all the way off and then adjust the screen controls so you don't any lines (retrace)

do not touch the focus controls you will make the picture blury

make the picture loiok black and white the best you can


You may have a bad crt or two

if this keeps acureing or you can't get a good greyscale



Posted on Feb 09, 2009

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Your convergence board is going out. this will have to be replaced. i would take a look at the main logic board as well. it could have minor point breakage.

Posted on Feb 09, 2009

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