Maxent MX-50X3 Constant vertical lines, looks like bar codes.

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  • cdcamaro9534
    New Member
    • Apr 2011
    • 9
    #1

    Maxent MX-50X3 Constant vertical lines, looks like bar codes.

    I have saved one of these Maxent PDP's from a dumpster and believe it's the Y buffer board. The lines stay pretty constant in color with only a few flickering and changing color. I thought I would ask the opinion of smarter minds since this is my first PDP. Am I on the right track, or do I need to be looking else where?

    In the chassis pic, I've already removed the upper y board.
    Attached Files
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Maxent MX-50X3 Constant vertical lines, looks like bar codes.

      There's a good chance this is a panel defect. Do the lines appear over displayed images? If they do it's definitely a bad plasma panel unfortunately non repairable.
      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

        • tucocaps
          Badcaps Veteran
          • Apr 2013
          • 331
          • United Stated
          #3
          Re: Maxent MX-50X3 Constant vertical lines, looks like bar codes.

          I just posted a similar problem with horizontal lines on an old maxent.

          Do your lines extend across the entire screen, and does the screen flicker along with the backlight? Based on research, it seems it is the mainboard. It sure would be nice to be able to definitively test these things to know.

            Comment

            • cdcamaro9534
              New Member
              • Apr 2011
              • 9
              #4
              Re: Maxent MX-50X3 Constant vertical lines, looks like bar codes.

              I've put a ton of heat to the controller board, and anything that's BGA along with board flexing. Nothing made a change to point to a BGA issue that I can tell. But it still could be possible.

              I disconnected the top PDP ribbon on the Y buffer board in the first pic. And in the second pic, I completely disconnected the PDP ribbons from the top middle X board.

              Yes Tom the lines to appear over images. I'm uploading some video to better show.
              Attached Files

                Comment

                • cdcamaro9534
                  New Member
                  • Apr 2011
                  • 9
                  #5
                  Re: Maxent MX-50X3 Constant vertical lines, looks like bar codes.

                  Here is some quick video to show better.

                  Youtube video of lines.

                  Video w/X board disconnected

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK
                      #6
                      Re: Maxent MX-50X3 Constant vertical lines, looks like bar codes.

                      Definitely a bad plasma panel. Sorry, non repairable.
                      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

                        • cdcamaro9534
                          New Member
                          • Apr 2011
                          • 9
                          #7
                          Re: Maxent MX-50X3 Constant vertical lines, looks like bar codes.

                          Originally posted by tom66
                          Definitely a bad plasma panel. Sorry, non repairable.
                          Well that's the chance you take for digging through dumpsters. Thanks for the help Tom. Looks like it's time to part out and grave yard it.

                            Comment

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