LG 50PG20 plasma thin line going across screen

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  • zell66
    Member
    • Nov 2014
    • 35
    • usa

    #1

    LG 50PG20 plasma thin line going across screen

    I have a LG 50PG20 tv, I just replaced the power supply board and got tv to turn on, but now there is a very thin (about 1/16") going across tv screen. Any ideas on what this is and how to fix it?
  • freakaftr8
    Badcaps Legend
    • Oct 2012
    • 3743
    • USA

    #2
    Re: LG 50PG20 plasma thin line going across screen

    Did you happen to take the ribbon cables off the buffer boards? Maybe try reseating the offending cable.
    Did I leave the soldering iron on?

    Comment

    • zell66
      Member
      • Nov 2014
      • 35
      • usa

      #3
      Re: LG 50PG20 plasma thin line going across screen

      yes I removed all ribbon cables from power supply board. That could have an issue with one thin line across tv???

      Comment

      • freakaftr8
        Badcaps Legend
        • Oct 2012
        • 3743
        • USA

        #4
        Re: LG 50PG20 plasma thin line going across screen

        No I meant the ribbons that go into the panel directly. They are copper colored. On the far left.
        Did I leave the soldering iron on?

        Comment

        • zell66
          Member
          • Nov 2014
          • 35
          • usa

          #5
          Re: LG 50PG20 plasma thin line going across screen

          no i did not, but i can check them in the morning.

          Comment

          • tom66
            EVs Rule
            • Apr 2011
            • 32560
            • UK

            #6
            Re: LG 50PG20 plasma thin line going across screen

            Is the line going from left to right or top to bottom?
            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

            • zell66
              Member
              • Nov 2014
              • 35
              • usa

              #7
              Re: LG 50PG20 plasma thin line going across screen

              tom66 it is going from side to side about 6"from the top

              Comment

              • tom66
                EVs Rule
                • Apr 2011
                • 32560
                • UK

                #8
                Re: LG 50PG20 plasma thin line going across screen

                It could be a bad plasma panel. There is a small chance it is a Y-buffer fault but that is very rare.
                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

                • zell66
                  Member
                  • Nov 2014
                  • 35
                  • usa

                  #9
                  Re: LG 50PG20 plasma thin line going across screen

                  tomm is it fixable or is it just the way it will be?

                  Comment

                  • zell66
                    Member
                    • Nov 2014
                    • 35
                    • usa

                    #10
                    Re: LG 50PG20 plasma thin line going across screen

                    sry tom66 is this line thing fixable or just have to live with it?

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK

                      #11
                      Re: LG 50PG20 plasma thin line going across screen

                      Most likely it will not be fixable.
                      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

                      • zell66
                        Member
                        • Nov 2014
                        • 35
                        • usa

                        #12
                        Re: LG 50PG20 plasma thin line going across screen

                        ok thanks for the info.

                        Comment

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