lg 32lc2d no video

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  • Ovalking
    Senior Member
    • Jul 2013
    • 57
    • Usa

    #1

    lg 32lc2d no video

    Hello I have a lg 32lc2d tv no video replaced caps it worked
    A few minutes and no it's doing same thing I'm only getting 1.8
    Volts where it's should be 3.4 all other voltages are about
    A half volt lower then specs any help would be appreciated
    Thanks tony
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: lg 32lc2d no video

    This is a common problem on this model. I've never been able to confirm my suspicions (haven't had a second one to work on yet) but I believe it to be the 8 pin buck converter IC on the power board failing. You can replace it, I forget the part number but it is written on the device. Post a picture of your power board if you need help locating it.
    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

    • Ovalking
      Senior Member
      • Jul 2013
      • 57
      • Usa

      #3
      Re: lg 32lc2d no video

      Here's pic of board thanks

      Comment

      • Ovalking
        Senior Member
        • Jul 2013
        • 57
        • Usa

        #4
        Re: lg 32lc2d no video

        Lets try pics again
        Attached Files

        Comment

        • Ovalking
          Senior Member
          • Jul 2013
          • 57
          • Usa

          #5
          Re: lg 32lc2d no video

          Again
          Attached Files
          Last edited by Ovalking; 08-23-2013, 08:33 AM. Reason: Double post

          Comment

          • Ovalking
            Senior Member
            • Jul 2013
            • 57
            • Usa

            #6
            Re: lg 32lc2d no video

            I tried to put both pics together couldn't get it to let me
            Thanks tom66
            Attached Files

            Comment

            • vinceroger69
              Badcaps Legend
              • Mar 2012
              • 6714
              • uk

              #7
              Re: lg 32lc2d no video

              i think the ic tom is on about is on the underside of the board i had this issue on a lg as well .

              Comment

              • Ovalking
                Senior Member
                • Jul 2013
                • 57
                • Usa

                #8
                Re: lg 32lc2d no video

                Thanks vinceroger69 here's bottom pic
                Attached Files
                Last edited by Ovalking; 08-23-2013, 09:59 AM. Reason: This is a parts board it has a burnt trace but is same as mine

                Comment

                • tom66
                  EVs Rule
                  • Apr 2011
                  • 32560
                  • UK

                  #9
                  Re: lg 32lc2d no video

                  It's probably this IC you should replace.
                  If replacing this fixes the issue PLEASE report this back so we know, this problem is so common and it has not yet been determined if this is the actual fix.
                  Attached Files
                  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

                  • Ovalking
                    Senior Member
                    • Jul 2013
                    • 57
                    • Usa

                    #10
                    Re: lg 32lc2d no video

                    Tom66 I put a ic out of another board powered it on
                    And it's been working a hour now thanks for your help

                    Comment

                    • tom66
                      EVs Rule
                      • Apr 2011
                      • 32560
                      • UK

                      #11
                      Re: lg 32lc2d no video

                      Great! That is good info. What IC did you use? IRU3037?
                      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

                      • Ovalking
                        Senior Member
                        • Jul 2013
                        • 57
                        • Usa

                        #12
                        Re: lg 32lc2d no video

                        Took one out of another board with bad circuits

                        Comment

                        • tom66
                          EVs Rule
                          • Apr 2011
                          • 32560
                          • UK

                          #13
                          Re: lg 32lc2d no video

                          Thanks for the info, finally a confirmed fix.
                          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

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