LG 42PX4D-UB No Picture, Sound works

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  • gingerbreadman
    Member
    • Sep 2013
    • 36
    • United States
    #1

    LG 42PX4D-UB No Picture, Sound works

    Hello Everyone,

    I just picked up an LG Plasma 42". As the title says there is no picture but the sounds works.

    At this point I'm thinking it's the IPM on the Ysus board. There was a blown fuse on the ysus board. After having the tv on for a bit the xsus board IPM heatsink was warm while the ysus one stayed cool. The screen seems to be completely black, no flashes, lines or anything.

    What are your thoughts?
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: LG 42PX4D-UB No Picture, Sound works

      Y-sus IPM seems likely. Do check buffers for shorts before though.
      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

        • gingerbreadman
          Member
          • Sep 2013
          • 36
          • United States
          #3
          Re: LG 42PX4D-UB No Picture, Sound works

          Thank you Tom66.

          I installed the new IPM on the ysus board.
          The tv now turns on but the picture only works on the left side of the screen.
          I'm going to recheck all my cable connections.
          Any ideas as to what's causing this?

            Comment

            • tom66
              EVs Rule
              • Apr 2011
              • 32560
              • UK
              #4
              Re: LG 42PX4D-UB No Picture, Sound works

              Check the cables on the control board are seated properly.
              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

                • gingerbreadman
                  Member
                  • Sep 2013
                  • 36
                  • United States
                  #5
                  Re: LG 42PX4D-UB No Picture, Sound works

                  It works now! I missed hooking up a cable that was hidden underneath another board.

                    Comment

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