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How to fix Samsung 58 TV display got half black curved line?

I have a Samsung Plasma 58" TV "pn58b560t5fxza" that got a small bottom black curved line while we were moving to new house. The line gets increasing when we turns on the TV. We can stills see the picture on the top portion of the screen but the bottom dark black portion getting increased when we keep the TV turned on. everything else works fine like the sound, buttons etc. I will really appreciate it If anyone can tell me what it is and how much it would cost to fix? Someone told me replace the main board and it should be fine. I want to take your guys advise before proceeding any further. Thanks for reading and your advise in advance!

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Hi Mazy, sorry to hear about this...

Problem with plasma screens is that they do have a limited life, they also do not like to travel. You have to keep them upright because the glass panel is so heavy. Did you lie it flat for transportation? Is the black area in the middle bottom or in the corner? If it is in the corner, and the mounting point has a problem, it could cause this, but hard to say without seeing it. Does the black area retreat when it is off and cools down? I doubt if it is the system board, sadly if it is the display panel, it would not be worth fixing.

Let me know if you have more details... Good luck.

Posted on Nov 14, 2014

  • 4 more comments 
  • Mazy KK
    Mazy KK Nov 14, 2014

    Thank you for your quick reply.

  • Mazy KK
    Mazy KK Nov 14, 2014

    I did not lie it flat. the black area is in the bottom. first it started like small faded curved line and now it covers almost 50% of the screen (it is not straight horizontal black faded area). when we turn it on it keep increasing. I will post images and videos when I go home. I beleive it started because i traveled it with the stand and we had a big bump on the raod.

  • Mazy KK
    Mazy KK Nov 14, 2014

    I just added the an image and a video so you know it better. it started from small faded area to increasing to this point now.




  • Mazy KK
    Mazy KK Nov 14, 2014

    I would really appriciate your advise if possible. thanks for looking and your time again!

  • HalmarV Nov 14, 2014

    Hi Mazy... What a pity, such a nice screen. Pretty sure that is the plasma panel, if it was the main board or display driver, it would be straight lines, horizontal or vertical, not fading in like that.

  • HalmarV Nov 14, 2014

    Keep in mind that a plasma screen is basically lots of small CRT tubes,like our old TV screens that operate with a vacuum inside, if it got a hairline crack and air is seeping in, then the panel is a write off, no way to repair. And normally beyond economical to replace. Ciao!

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SOURCE: horizontal half black screen, sound is still there

A plasma screen uses thousands of tiny fluorescent bulbs in different colours (red blue and green) to produce a picture. Just like standard house hold fluro lamps, these tiny bulbs use starters to turn them on and off. As there are so many bulbs in the panel and therefore starters, the panel has a number of "starter controllers". These controllers can control anywhere from a quarter up to half of the screen. If a controller dies, it takes out it's segment of the screen. Unfortunately, it sounds as if this is what has happened in the case of your LG - this is also common in NEC and Fujitsu panels. Althought these controllers can be fixed, it usually takes more time and money than it's worth- unless you have it under warranty in which case the manufacturer will just replace it. Sorry top be the bearer of bad news. hope it helps

Posted on Jul 06, 2009

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