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I GET A BLACK LINE ON THE SCREEN OF MY PLASMA TV

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  • benharmer Apr 05, 2008

    I HAVE A BLACK LINE ON MY PLASMA TV SCREEN IT HAS BEEN TURNED OFF AND ON WITH PLUGS IN AND OUT BUT THIS LINE IS STILL THERE ITS ABOUT AN INCH WIDE AND GOES FROM THE TOP TO THE BOTTOM OF THE SCREEN

  • benharmer Apr 05, 2008

    THE LINE IS STILL THERE COULD THIS PROBLEM BE ANY OF THE CONNECTIONS TO THE SCREEN

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  • 3,422 Answers

Hi,

This is a serious problem. It may be a design problem or a defect in the video processing. Since it is temperature related..... or digital error buildup of some kind - it is not an easy one to diagnose without some hands-on observations and measurements.

A tech will have to put on an oscilliscope and trace through the circuits and find out where the vertical bar is being introduced. These sets are grossly complicated from a circuits point of view with several IC chips that make it difficult to troubleshoot. If the TV warranty gets to it, they may replace the main board or the display driver or whatever is producing the malfunction.

But, I believe strongly it is a manufacturers warranty problem and they should be held to it. Make sure they realize it has been going on for before the warranty expired and you have not been able to get their attention.

FEW TROUBLESHOOTING STEPS YOU CAN TRY:

ONE: Check the line cord. Wiggle both ends near the molded part.
TWO:Do a hard reset by unpluging all the cords for 4hrs and then plug it back.

THREE:The whacking test is to just bang or smack the set with your hand on the back, side, top, etc., to see if there are loose connections or cold solder joints inside that are acting up. If so, the banging should knock them back to normal and the set should restore. You might have to use some creative banging and some have had to put a book or magazine under one corner to torque the chassis enough to get it to work reliably.

If the problem still persists then like i said before,you will have to get it repaired by a technician.

Goodluck,
Please don't forget to rate the solution

Posted on Apr 05, 2008

  • Priya darshan Apr 05, 2008

    Was that comment for me?

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Try to turn off unit, let it cool for a few minutes and turn it back on without a cable or devices attach to it. If the black line still appears then there might be a problem with the unit it self, if there is non then chances are you need to make sure that cables are tightly plugin to your tv.

Update me for results, thanks!!

Posted on Apr 05, 2008

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  • Master
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May be there is some problem in the transistors on the screen

Posted on Apr 05, 2008

  • isaac johny
    isaac johny Apr 05, 2008

    The plasma display screen is made of a matrix of elements
    connected to cables along the side and top. On your unit, some of
    these many, tiny connections are making contact intermittantly thus
    losing the elements in that area. These contacts are held in
    place with just pressure and if that is disturbed, you lose that line
    of elements.

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Posted on Jan 02, 2017

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