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Horizontal Black Line on Plasma Screen

On my Panasonic TH50PX77U, there is a horizontal black line through the middle of the screen. It shows up on every channel and input. If anyone could please tell me what the problem is, I would really appreciate it.

Thanks in advance. Samsung LNT4661F vertical line growing over time down screen, another is starting.  I can see the line when the TV is off, too.  It just appeared one day, and has been slowly getting longer.  I only have a few weeks left on my warranty.  Repair person said it was external damage and our fault.  I don't think that was the case.  HELP, PLEASE!

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  • Anonymous Dec 05, 2008

    If the line on my screen is not electronic failure, what is it? There is no physical marking of any kind. No dimple, scratch, indentation - nothing. How can a $1600 piece of equipment be damaged beyond repair without even knowing that it happened? Can you help me understand?

    This is a vertical line, and two more are starting in a different portion of the screen. They grow over time.

  • swingconsult Dec 05, 2008

    If it is not electronic failure, what is it? There is no sign of damage. No dimple, scratch, indentation or mark of any kind is visible. Only the vertical line in the screen that is lighter than the black screen turned off. I have two more lines starting. They grow over time

  • SANDYRED32 Jan 04, 2009

    HORIZONTAL BLACK LINE ON MY SAMSUNG LCD T.V

  • sbswas May 08, 2009

    Several horizontal black lines on my Samsung Plasma 42" TV at the bottom WHY?????????? Help me please

  • Anonymous Mar 20, 2014

    black thin horizontal line started to be generated slowly from left to right viewing tv via HDMI input, thanks

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If u can see it with the set off its a bad pannel!!!!
U need a second opinion and fast.

Posted on Dec 06, 2008

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On the Panasonic if you can open and repair problem you can be helped. If not call a repair center. On the Samsung I'm afraid the Repair guy is right. If you can see the line with Unit turned off then it is not electronic failure.

Sorry I did not have good news for you. Let me know about the Panasonic Plasma. Could be dirty contacts from the x board to the display.

Posted on Dec 03, 2008

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Posted on Jan 02, 2017

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