LG 70UH6350 Mainboard issue

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  • nomoresonys
    Badcaps Legend
    • Jan 2013
    • 12085
    • U.S.

    #61
    Re: LG 70UH6350 Mainboard issue

    Not sure, guess you could take out the caps closest to it, see if the cap tests good out of circuit, I would start with the biggest first, there's the freeze technique also seen lighter fluid used, have tried lighter fluid but I think freeze spray is better.

    Comment

    • nomoresonys
      Badcaps Legend
      • Jan 2013
      • 12085
      • U.S.

      #62
      Re: LG 70UH6350 Mainboard issue

      https://www.youtube.com/watch?v=qC9FEZ78-qM

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      • Storyteller12
        Badcaps Veteran
        • Jun 2020
        • 624
        • USA

        #63
        Re: LG 70UH6350 Mainboard issue

        I did some more digging around and found a coil that is shorted to ground. Not sure how to properly trace it out from here though without schematics. Coil is labeled L2307.
        Attached Files

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        • diif
          Badcaps Legend
          • Feb 2014
          • 6978
          • England

          #64
          Re: LG 70UH6350 Mainboard issue

          Originally posted by Storyteller12
          I did some more digging around and found a coil that is shorted to ground. Not sure how to properly trace it out from here though without schematics. Coil is labeled L2307.
          If you've disconnected the coil on one side you can see which side the short is.

          Comment

          • nomoresonys
            Badcaps Legend
            • Jan 2013
            • 12085
            • U.S.

            #65
            Re: LG 70UH6350 Mainboard issue

            wondering what happened on this one?

            Comment

            • Storyteller12
              Badcaps Veteran
              • Jun 2020
              • 624
              • USA

              #66
              Re: LG 70UH6350 Mainboard issue

              I found a used mainboard for it and fixed the problem.

              Comment

              • diif
                Badcaps Legend
                • Feb 2014
                • 6978
                • England

                #67
                Re: LG 70UH6350 Mainboard issue

                So you have a working board to compare with the broken one or have you stopped now the TV is working?

                Comment

                • Storyteller12
                  Badcaps Veteran
                  • Jun 2020
                  • 624
                  • USA

                  #68
                  Re: LG 70UH6350 Mainboard issue

                  Actually I didn’t find the exact same mainboard. Very hard to find and if you do there very expensive. . I found the commercial version mainbboard used for hospitality use. It works all the same just no Wi-Fi.

                  I sold the tv to a business for digital signage use

                  Comment

                  • nomoresonys
                    Badcaps Legend
                    • Jan 2013
                    • 12085
                    • U.S.

                    #69
                    Re: LG 70UH6350 Mainboard issue

                    Well done, glad you were able to give that monster a new life, cool that you could use another mainboard.

                    Comment

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