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LG 42LG3000 fault

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    #1

    LG 42LG3000 fault

    Hi folks , picked up this TV with the fault in the picture , sometime i switch it on and it works fine but when i switch it off again i get this fault ...




    any ideas ?
    Tags: None
    #2
    Re: LG 42LG3000 fault

    screen slowly goes like this ... panel ? tcon ?

    Comment

      #3
      Re: LG 42LG3000 fault

      Disconnect one of the cables from the panel driver boards to the t con and power up... view results, plug back in and do it to other side... power up and view results

      Comment

        #4
        Re: LG 42LG3000 fault

        I have seen this symptom due to bad panels.
        Never stop learning
        Basic LCD TV and Monitor troubleshooting guides.
        http://www.badcaps.net/forum/showthr...956#post305956

        Voltage Regulator (LDO) testing:
        http://www.badcaps.net/forum/showthr...999#post300999

        Inverter testing using old CFL:
        http://www.badcaps.net/forum/showthr...er+testing+cfl

        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
        http://s807.photobucket.com/user/budm/library/

        TV Factory reset codes listing:
        http://www.badcaps.net/forum/showthread.php?t=24809

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          #5
          Re: LG 42LG3000 fault

          ive seen it before on a laptop LCD panel , just seems a bit odd that it works sometimes, ill do as newtothis says and report back later.
          Last edited by karlpowell; 11-23-2013, 01:35 AM.

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            #6
            Re: LG 42LG3000 fault

            I've seen a bad tab bond cause this, especially intermittent. Is the panel made by ChiMei? Their 26" 720p panels often suffer from this.
            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

              #7
              Re: LG 42LG3000 fault

              Originally posted by newtothis View Post
              Disconnect one of the cables from the panel driver boards to the t con and power up... view results, plug back in and do it to other side... power up and view results
              What do you mean like " plug back in and do it to other side....."
              I have the same simptoms, i replace the t-con module(new one), and nothing happend.
              Any ideeas?
              Thanks

              Comment

                #8
                Re: LG 42LG3000 fault

                try flexing the panel, see if display changes.

                Comment

                  #9
                  Re: LG 42LG3000 fault

                  If the symptoms are the same as the OP and tcon didn't help you can be pretty sure its a bad panel

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