LG smart tv 55UB8500-UA

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  • pkasreymeas
    New Member
    • Mar 2017
    • 2
    • USA

    #1

    LG smart tv 55UB8500-UA

    Hello Everyone,

    I have an LG smart t.v. that has no picture and backlight. There's audio. I went on YouTube to search on how to fix it. I came across Shopjimmy. I went through troubleshooting it and found that it "may" be the inverter. I went onto the website and ordered a kit, which included the power board, t-con board, and inverter board. I replaced the inverter board...turned on the t.v., there was picture, but that didn't last long at all...back to black screen again. With all of the frustration brewing, I took the t.v apart once more and decided to replace the power board and t-con board...thinking "why not?" I put the back cover back on and plugged in the t.v., clicked the power button on the remote, it came on! Whoo-hoo! Victory was short-lived...I tried to make selections on the remote and check the menu; nothing works from the remote! Now my t.v. is just a fuzzy white screen that I can't change channels or go on Netflix. Oh, initially it started with black streaks on the screen and the streaks started multiplying; until it became a black screen. I'm so defeated. Please help...
  • heavymachines
    Badcaps Legend
    • Mar 2011
    • 1028
    • United States

    #2
    Re: LG smart tv 55UB8500-UA

    Read this https://www.badcaps.net/forum/showthread.php?t=39740
    Last edited by heavymachines; 03-22-2017, 08:38 PM. Reason: added link

    Comment

    • dskall
      Badcaps Legend
      • Oct 2016
      • 2905
      • usa

      #3
      Re: LG smart tv 55UB8500-UA

      And some pictures of screen. So before you started changing parts you had everything but backlights. Image on screen with flashlight?
      I assume no responsibility for any stupid suggestions I might post.

      Comment

      • Andrew F. Ali
        Badcaps Legend
        • Jan 2014
        • 2450
        • Trinidad & Tobago

        #4
        Re: LG smart tv 55UB8500-UA

        Hmmmm...Sounds like a bad LEDs to me. The LGs usually have those edge lit backlight screens....

        Comment

        • Davi.p
          Hobbist Tech
          • Sep 2009
          • 4322
          • Italy - Milan

          #5
          Re: LG smart tv 55UB8500-UA

          I judge this type of repair kit at least absurd, i thought smart people lived only in Italy but not... how can somone change 3 of 4 boards to fix a BL problem?? And maybe it lasts that there was only a fu**ing led blown (as usual) and the tcon is not right replacement and has destroyed the panel...
          PS: never heard smart tv with ccfl, so it hasnt an inveter..
          Last edited by Davi.p; 03-27-2017, 06:24 PM.

          Comment

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