LG 42PQ2000 Relay clicking

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  • mgibson212
    New Member
    • Jan 2015
    • 4
    • UK
    #1

    LG 42PQ2000 Relay clicking

    Chaps,
    I have a LG 42PQ2000 Plasma, power up and the relay starts to click, red standby light flickering on and off.

    Opened the baby up and disconnected the sus boards, problem still there.

    All caps look fine.

    Measured the 5v supply voltage at the micro and it varies, think this is the problem no 5v standby. Any idea for a schematic or components to check.

    Thanks in advance
    Tags: None
    • vinceroger69
      Badcaps Legend
      • Mar 2012
      • 6714
      • uk
      #2
      Re: LG 42PQ2000 Relay clicking

      What is the power supply number?

        Comment

        • selldoor
          Slow Learner
          • Dec 2010
          • 7870
          #3
          Re: LG 42PQ2000 Relay clicking

          I am not going to encourage your laziness I googled for the schematic and found a free one in approx 30 seconds
          Please upload pictures using attachment function when ask for help on the repair
          http://www.badcaps.net/forum/showthread.php?t=39740

            Comment

            • mgibson212
              New Member
              • Jan 2015
              • 4
              • UK
              #4
              Re: LG 42PQ2000 Relay clicking

              Pspu-j902a
              eay60696801

                Comment

                • mgibson212
                  New Member
                  • Jan 2015
                  • 4
                  • UK
                  #5
                  Re: LG 42PQ2000 Relay clicking

                  Any Idea on which components to test ?

                    Comment

                    • vinceroger69
                      Badcaps Legend
                      • Mar 2012
                      • 6714
                      • uk
                      #6
                      Re: LG 42PQ2000 Relay clicking

                      Have you downloaded the schematic and checked the various stages to see what board maybe at fault?

                        Comment

                        • Mikeyboy2007
                          Badcaps Veteran
                          • Mar 2013
                          • 745
                          • Scotland
                          #7
                          Re: LG 42PQ2000 Relay clicking

                          just came across this could be wrong but this could be same issue ?? i would test that diode as mentioned in this thread !
                          https://www.badcaps.net/forum/showthread.php?t=49482

                            Comment

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