Sharp LC-39LD145K No Power to LEDs

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  • Easky15
    Badcaps Veteran
    • Sep 2013
    • 285
    • Ireland
    #1

    Sharp LC-39LD145K No Power to LEDs

    Hi all, Been a while since ive had to use this forum,
    I have here a Sharp LC-39LD145K that works fine apart from no power to the backlight LEDs, I have stripped it right down and tested all LEDs and they all work fine, I can see them flash briefly for a split second when powered up, the voltage to them slowly drops away after the flash so im guessing there is an issue with the power board,

    I think the model number on that is 17IPS20 and here is some pics of it

    Any help on this would be greatly appreciated,

    Thanks
    Attached Files
    Tags: None
    • Easky15
      Badcaps Veteran
      • Sep 2013
      • 285
      • Ireland
      #2
      Re: Sharp LC-39LD145K No Power to LEDs

      Also here is a video of the fault

      https://www.youtube.com/watch?v=NGDLk_fCzlQ

        Comment

        • dick_barton
          Badcaps Legend
          • Aug 2015
          • 6642
          • Wales
          #3
          Re: Sharp LC-39LD145K No Power to LEDs

          You have a few leds not working. Check the video and pause it at the flash.
          Attached Files
          Last edited by dick_barton; 05-10-2020, 10:05 AM.
          Willing to help but I'm no expert.

            Comment

            • R_J
              Badcaps Legend
              • Jun 2012
              • 9535
              • Canada
              #4
              Re: Sharp LC-39LD145K No Power to LEDs

              I agree, there are at least two bad led's

                Comment

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