LG 47LC7DF panel question

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  • crosstalk
    Senior Member
    • Feb 2014
    • 68
    • Usa
    #1

    LG 47LC7DF panel question

    I picked up an LG 47LC7DF that wouldn't power on. Replaced 5 bad caps on the power supply and back in business. Next problem is there are several small semi-circular defects at the top of the panel that fade away as the panel warms up (10 mins or so). See photo attached.

    I would like to reseat the tcon to panel ribbons, but it looks like a lot of work to remove the tcon on this model (lots of support structure in the way on this older model set). Any idea if I am wasting my time trying to get to the tcon to fix this picture problem?
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    • heavymachines
      Badcaps Legend
      • Mar 2011
      • 1028
      • United States
      #2
      Re: LG 47LC7DF panel question

      Working on this problem as well after replacing all the primary caps except some bigger ones but set come on fine every time now as it had intermittent turn on issues the 5 volt stby was original problem as it was too low, replace all little caps in primary fixed that. However after warming this set up the rings at top of screen almost goes away completely but still there very very faintly. Anyone have any idea what this could be?





      P.S. Resetting cable from t-con didn't have any affect... I tried shotgunning with hair dryer so far no affect. Just plain weird...

        Comment

        • heavymachines
          Badcaps Legend
          • Mar 2011
          • 1028
          • United States
          #3
          Re: LG 47LC7DF panel question

          Problem is same as OP weird yellow half rings at top of screen...

            Comment

            • dskall
              Badcaps Legend
              • Oct 2016
              • 2905
              • usa
              #4
              Re: LG 47LC7DF panel question

              Are they still there when you disconnect ribbon cables?
              I assume no responsibility for any stupid suggestions I might post.

                Comment

                • attainteddragon
                  Badcaps Veteran
                  • Apr 2013
                  • 764
                  • australia
                  #5
                  Re: LG 47LC7DF panel question

                  looks like the diffuser sheet is sagging a little to me and the backlight is reflecting through the edge.
                  WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?

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