Lg 47le5400 possible main board issue

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  • cherokee.warrior
    Senior Member
    • May 2017
    • 87
    • United States
    #1

    Lg 47le5400 possible main board issue

    I have a LG 47LE5400-UC.AUSWLHR. With an issue that I think maybe a main board problem but I wanted to see if anyone else has seen this with this model of TV. See if anyone may already know what is causing the issue and the possible fix. Doesn't hurt to ask before cracking it open for a look see. Here is a link to a video of it in operation.
    https://youtu.be/3di-Npvc4Zs
    Attached Files

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    Tags: None
    • cherokee.warrior
      Senior Member
      • May 2017
      • 87
      • United States
      #2
      Re: Lg 47le5400 possible main board issue

      I'm getting this on all hdmi inputs and when watching the TV signal over the air. I've not checked the other inputs but suspect it's the same on them as well.

        Comment

        • RJARRRPCGP
          Badcaps Legend
          • Jul 2004
          • 6304
          • USA
          #3
          Re: Lg 47le5400 possible main board issue

          Looks like the T-con or the mainboard in general...
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            Comment

            • cherokee.warrior
              Senior Member
              • May 2017
              • 87
              • United States
              #4
              Re: Lg 47le5400 possible main board issue

              It looks to be a main board /tcon board all in one board.
              Uploaded service manual to this post.
              Attached Files

              if you find these attachements useful please consider making a small donation to the site

                Comment

                • freakaftr8
                  Badcaps Legend
                  • Oct 2012
                  • 3743
                  • USA
                  #5
                  Re: Lg 47le5400 possible main board issue

                  Try heating up the main board with a hair dryer and see if the problem persists
                  Did I leave the soldering iron on?

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