Vizio VP503HDTV10A with one vertical line help

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  • bphan6
    New Member
    • Feb 2011
    • 4
    #1

    Vizio VP503HDTV10A with one vertical line help

    Hello everyone.
    I am new to the forum and looking for help with my plasma tv...
    The attached picture show that I have a vertical line 1/5 from the right of the screen...
    when i play any movie in any mode, the line is always there,,,
    when look at close distance, the pixels jumps with lot of colors...
    I have heard the people banging on the tv and got it fix... it is not the case for me..
    I opened up and tried to reseat all the plex cable still not help...
    I noticed that when I remove the associated flex cable that generates the back light to the plasma, the entire block will be dark... but I still can see the line to be darker....
    It seems to me that the line was caused by the bad memory or address line which turn off the pixel in that line completely...
    My question is if some one can explain to me how the Pixel turn on...? Is the buffer board bad? or the X-sus bad? or the controller bad which did not turn on that pixel line...
    Thanks
    bphan6
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    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Vizio VP503HDTV10A with one vertical line help

      This is most likely a bad plasma panel.

      Along the bottom of the panel (or sometimes the top) there are a lot of driver chips which control the loading of data into the plasma panel (the plasma panel acts a lot like a memory which can store an image.)

      When the x-drivers fail the panel lines get stuck on or off. The driver chips are unfortunately bonded to the panel, and as such, are not replaceable.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • bphan6
          New Member
          • Feb 2011
          • 4
          #3
          Re: Vizio VP503HDTV10A with one vertical line help

          Thank and I also found my problem.. Unfortunately, it could not be fixed.... The flex cable I was talking about in my previous email has a kink on it and seem to cause the problem... When I flexed the cable, i sometime saw the problem getting worse or better... I later used microscope to inspect the cable, it seems that I really break and does not make the continuity..
          I still don't understand why it could have happen for so long until now hic hic and I guess that no one ever can replace the flex ribbon cable going into the panel... (as I googled). hic hic...
          Thanks so much TOM66

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