Panasonic TH 50PZ80U Transparent Vertical Bar

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  • jmp906
    Member
    • Oct 2013
    • 10
    • USA

    #1

    Panasonic TH 50PZ80U Transparent Vertical Bar

    I have a 2008 Panasonic Viera TH-50PZ80U. When the TV warms up, a 3 inch transparent yellowish vertical bar appears in a fixed position from top to bottom on the right side of the screen. The bar overlays any video input including the TV's menus. It first appeared with images that have white backgrounds. It now appears with any background. It may disappear for a while if I tap on the chassis. I have re-seated some of the ribbon cables with no effect on the bar. Has anyone else experienced this? Any suggestions on how to diagnose and solve this problem? Thanks much.
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: Panasonic TH 50PZ80U Transparent Vertical Bar

    This will be a loose ribbon but it will be on the bottom of the plasma panel not the side. Have you reseated those ones? Very common issue on these panels.
    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

    • jmp906
      Member
      • Oct 2013
      • 10
      • USA

      #3
      Re: Panasonic TH 50PZ80U Transparent Vertical Bar

      Thank you, Tom. I did reseat the ribbons that lined up with the bar without success. I will have to try to reseat all of them.

      Comment

      • jmp906
        Member
        • Oct 2013
        • 10
        • USA

        #4
        Re: Panasonic TH 50PZ80U Transparent Vertical Bar

        I reseated the ribbon cable but the transparent vertical bar still appears. Removing the ribbon cable replaces video with static in the bar. Is the next step to replace the C1 buffer board? Is there any way to determine if the problem is with the board or the components in the ribbon cable?

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: Panasonic TH 50PZ80U Transparent Vertical Bar

          Which board does the bar cover, C1, C2, ...?
          Also, can you provide a picture of the fault?
          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

          • wreksta
            Badcaps Veteran
            • Aug 2013
            • 508
            • england

            #6
            Re: Panasonic TH 50PZ80U Transparent Vertical Bar

            His buffers are clip type forget what i mentioned lol
            Last edited by wreksta; 10-03-2013, 03:53 PM.

            Comment

            • jmp906
              Member
              • Oct 2013
              • 10
              • USA

              #7
              Re: Panasonic TH 50PZ80U Transparent Vertical Bar

              Thank you. I posted a picture of the fault. Had to start a new thread "Panasonic TH 50PZ80U Transparent Vertical Bar-image"

              Comment

              • jmp906
                Member
                • Oct 2013
                • 10
                • USA

                #8
                Re: Panasonic TH 50PZ80U Transparent Vertical Bar

                Image of transparent vertical yellow line. This line appears after the TV is on for 45 minutes.
                Attached Files

                Comment

                • freakaftr8
                  Badcaps Legend
                  • Oct 2012
                  • 3743
                  • USA

                  #9
                  Re: Panasonic TH 50PZ80U Transparent Vertical Bar

                  Had same tv with same issue in the left side if the screen. Turned out to be a bad chip on the ribbon of the panel. Eventually it got to the point where it caused a sos shutdown. Had to eventually remove the sos on the ss board with owners blessing. It kept going.
                  Did I leave the soldering iron on?

                  Comment

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