Nec plasmasync 4200w 3 vertical lines one yellow two purple

This unit has 3 vertical lines -- which appear to be a pixel in width -- stretch from the bottom of the screen half way up. Two of the lines are on the left side of the screen and purple/magenta in color. The third line is yellow and lies on the right side of the screen. Also, the screen was scratched. Any suggestions for smoothing out the scratch or reasons for the vertical lines would be greatly appreciated.

lite2 Nov 13, 2007

I have a similar problem with a Vizio P42HDe but mine is just red or green and only to the left half of the screen,
but i can give the frame of the set a light knock and get rid of it
till the next time. Might be a pixels width or up to 1 inch wide.
Waiting on a service call. Hope they just replace it, I also havnt been
able to use the DVI since day two, tv says no signal.

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3,130 Answers

Sorry to tell you, it is not a scratch, but a bad cable connection from the driver IC's, connecting up the plasma screen to the drive board, or the drive IC for that section of the screen is defective. It is not a repair a user can do as there are no user replaceable parts inside this set. Your going to have to call NEC or an experienced Plasma repair shop.

Posted on Oct 08, 2006

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