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I have a plasma tv that has two black lines about 50mm wide running vertically in the centre of the screen

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  • jmock85 Aug 17, 2008

    problem is there whether i watch tv or dvd

  • jmock85 Aug 17, 2008

    problem is the same watching tv or dvds

  • jmock85 Aug 17, 2008

    thanks at least i know where i stand as far as repairing is concerned

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5 Answers

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Check if the socket between Y driving board and Y BUFFER is plugged well. If not, plug it well. If yes then replace Y BUFFER (upper, lower) in respect to the upper , lower part of the dark line on
the screen.

Posted on Aug 17, 2008

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Service manual Troubleshooting tips:
There appear on the screen one vertical unlit line or a vertical entirely unlit block?
a. If it’s one vertical unlit line, then COF has problem.
b. If it’s a vertical entirely unlit block, then first check if the connection socket between COF and
logic BUFFER has problem. If not, check if the connection socket between the logic BUFFER
and the logic board is normal. If yes, replace the logic BUFFER. Finally, if the problem still
remains when the replacement is over, then replace the logic board.
[7 flexible ribbons attached to the bottom of the screen.These ribbons are called COF's (chip on flexible)]

Posted on Aug 17, 2008

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In my opinion, your Plasma TV has problem in video data processing board and / or in panel and needs to be replaced. But as per my knowledge, no company / manufacturer is offering parts / boards any more for Plasma Tvs. Few Brands offer replacement with LCD TV on discount price. Please contact your TV Brand Helpline for further info.

Posted on Aug 17, 2008

  • Shahid Electronics
    Shahid Electronics Aug 17, 2008

    Thanks for using Fixya.com and vote to my solution.

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Hi-

does it happen/show when you are watching videos as well from a dvd player? try unplugging and replugging the cables from the back and try changing video output using the menu

keep us posted

Posted on Aug 17, 2008

  • Edgar Allan Pagayona
    Edgar Allan Pagayona Aug 17, 2008

    Hi-

    Thanks for the info, if your TV is within the warranty period still call your manufacturer for free service, if its not suggesting you send it over to a tv repairman so that they can check on the mainboard of your television.

    thanks for using fixya!


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Three kinds of detects count for this problem. It could be the Logic board, or the Logic Buffer board, or the PDP panel. Just drop your tv to the warranty depot shop to repair.


Posted on Aug 17, 2008

  • dewan nafees ahmed Aug 17, 2008

    There are flat ribbon cables that leave the panel and plug into the
    driver boards mounted along the bottom of the unit. If reseating the
    cables doesn't fix the problem you've probably got a bad panel.

  • dewan nafees ahmed Aug 17, 2008

    please dont forget to accept the solution if you are OK with it.

    thank you


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