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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.

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  • firefly19 Mar 16, 2008

    I have a Panasonic TH-50PX60U and a thin, horizontal black line appeared across my screen this morning and will not go away. The unit is 14 months old. Warranty expired last month, of course. If anyone has a new solution to this, it would be greatly appreciated. I've had to call a Panasonic tech and I know that's going to be expensive.

  • Anonymous May 24, 2008

    middle black line

  • amarantha_di Jul 01, 2008

    I have a vertical line in the middle of my screen also have the Panasonic Viera. The TV is not even a year old!!

  • p_short Nov 19, 2008

    panasonic th50xp80u black line through top of screen.How to get rid of?

  • Anonymous Dec 10, 2008

    I have not one but 2 thin horizontal lines across my 42'' samsung plasma that is 2 years old. No hope for warranty...

  • Anonymous Dec 11, 2008

    I was watching TV tonight and I got a thin black horizontal line across the screen that won't go away.....

  • Anonymous Dec 22, 2008

    same problem got home from out of town and i have a thin line right in the middle of my screen

  • Anonymous May 16, 2009

    Same problem, only mine is a vertical black line about 12 inches long and 2 inches wide from the top of the screen about 1/4 of the way in from the left edge. It appears on all channels (HD and anlog) and while playing a DVD. Mine is a 2-year old Panasonic TH-50PX60U 50-inch plasma. Please help!

  • Anonymous May 23, 2009

    I have the same problem with a toshbia 47in its about nine years old



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What is a PDP panel?

Posted on May 12, 2009

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Most likely it's the PDP panel failure.

Posted on Jan 04, 2008

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Its the driver board on the bottom of the panel usually they are three slim boards with a heatsink attached to it.Try resoldering all the components and reseating them properly.If that doesn't work then lookup the part number on ebay or other place that sell spares.They aren't dear to get.

Remember if you have a lin in the middle work with the middle board only,left the left board.

Something ain't broke,don't fix it.

Posted on Jun 05, 2010

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If the line(s) go away when you plug the TV into a non-grounded plug you have a ground loop problem .... google "horizontal lines plasma tv"

Posted on Dec 23, 2008

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