LG 50PJ350 - Horizontal lines through panel

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  • Josh094
    Member
    • Jul 2013
    • 17
    • Australia
    #1

    LG 50PJ350 - Horizontal lines through panel

    Hey guys, I've got an LG 50PJ350 plasma here which has vertical lines running through the top of the screen. It is also experiencing power supply issues and fails to turn on sometimes (clicking noise, apparently a common issue and I have ordered a repair kit) however I would like to know what could be causing this issue before continuing to attempt repairs on this unit.

    Here's a picture, thanks in advance for any help.

    Tags: None
    • jbfr_54
      Senior Member
      • Dec 2012
      • 52
      • France
      #2
      Re: LG 50PJ350 - Horizontal lines through panel

      Hi,
      Looks to me a Y-buffer (1st upper) chip dead or tab bond problem.
      If it is the chip it may aloso explain the power-on problem.

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK
          #3
          Re: LG 50PJ350 - Horizontal lines through panel

          Reseat the top most Y-buffer cable. If that does not do it, you may be looking at a bad panel problem.
          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

            • Josh094
              Member
              • Jul 2013
              • 17
              • Australia
              #4
              Re: LG 50PJ350 - Horizontal lines through panel

              Cheers guys, will have a look and report back

                Comment

                • Josh094
                  Member
                  • Jul 2013
                  • 17
                  • Australia
                  #5
                  Re: LG 50PJ350 - Horizontal lines through panel

                  Just an update here, opened it up and sure the top most y buffer ribbon cable wasn't properly secured. Still having issues turning on however I believe it's a power supply issue and a repair kit is on its way.
                  Thanks very much for the help guys, much appreciated.

                    Comment

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