Question about Sony BRAVIA KLV-40U100M 40 in. HD-Ready LCD Television

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Blue line - screen

I have a blue line running down the middle of the screen.

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  • wizz of oz Mar 02, 2009

    Same problem.. however it grew worse and the screen started to flicker and turn off. Sony has replaced the control unit but the problem is not fixed. Waiting for an LCD panel replacement (under warranty) since the past 2 months :-<

  • Anonymous Mar 28, 2014

    Blue line in middle of screen

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  • 335 Answers

Your control board and address circuits need to be examined. This could be a component problem or a simple fix such as installing a new ribbon cable from the control board too the address circuits on the LCD panel itself. To do this would require a technician, but before this issue gets worse you should have it repaired.....check to see if its under warranty.

Some people have tapped the back of their tv and got rid of vertical line interference. But , I wouldn't suggest that method.......

Posted on Feb 26, 2009

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