LVDS troubleshooting

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  • Yanleb
    Senior Member
    • May 2017
    • 101
    • Canada
    #1

    LVDS troubleshooting

    Just a question here. How do you troubleshoot a potential LVDS problem?

    An oscilloscope and a differential probe with a bandwidth high enough cost an arm and a leg. I doubt that every repair shop owns that. Not mentioning DIYers...

    For 4K V-by-One requires even higher end equipment.

    So how do you troubleshoot that?
    Tags: None
    • lotas
      Badcaps Legend
      • Jan 2016
      • 4512
      • Russia
      #2
      There is a 7th generation TV160 tester for this.
      Attached Files

        Comment

        • Yanleb
          Senior Member
          • May 2017
          • 101
          • Canada
          #3
          Ok, good solution to test the main board.

          But how to test between the T-CON board and the panel, or between the main board and the panel when the T-CON board is integrated with the main board?

            Comment

            • sickboy
              Senior Member
              • Jun 2015
              • 86
              • UK
              #4
              Sadly, I think the only thing currently capable of decoding the LVDS signal is the dedicated LCD panel designed for that particular TV

                Comment

                • CapLeaker
                  Leaking Member
                  • Dec 2014
                  • 8050
                  • Canada
                  #5
                  You don’t need a differential probe to test the LVDS. Done so many times without it. Depending on the TVs age, you may need a heftier oscilloscope to see anything.

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