Lg 37lc46

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  • darkoverlord
    New Member
    • Mar 2013
    • 9
    • united kingdom

    #1

    Lg 37lc46

    Been given one of these, was a problem where after 20 mins screen starts to break up and eventually goes black. Asumed inverter or t-con board problem, after opening up appears some one else already had a go at fixing power board, some of caps have been replaced with wrong ones, im assuming this is whats causing problem. Until replaced with correct caps dont want to trouble shoot any further.

    I would rather repair the power board than buy a replacement, Power board is EAX32268301/8 tried searching for the board diagrams but havent had any look, does any have any experience with this set and one know what capacitors are needed for the following locations.

    C202
    C217
    C221
    C206

    Thanks for any help
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: Lg 37lc46

    How about pictures of the whole back side of the TV so we can see what we are dealing with?
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment

    • selldoor
      Slow Learner
      • Dec 2010
      • 7870

      #3
      Re: Lg 37lc46

      2200uf 16v
      Please upload pictures using attachment function when ask for help on the repair
      http://www.badcaps.net/forum/showthread.php?t=39740

      Comment

      • darkoverlord
        New Member
        • Mar 2013
        • 9
        • united kingdom

        #4
        Re: Lg 37lc46

        The caps that was put in was 3300uf 25v and they was obviously not the right sized caps for the board and im guessing not the correct rating, with the screen having problems after around 20 mins, I want to ensure the power board has the correct rated caps on so as to eliminate that as the problem.
        Attached Files

        Comment

        • tom66
          EVs Rule
          • Apr 2011
          • 32560
          • UK

          #5
          Re: Lg 37lc46

          The four smaller ones are all 2200uF 10V IIRC.
          The one bigger one is 1000uF 35V.
          Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
          For service manual, schematic, boardview (board view), datasheet, cad - use our search.

          Comment

          • darkoverlord
            New Member
            • Mar 2013
            • 9
            • united kingdom

            #6
            Re: Lg 37lc46

            Thanks for the answer, trip down to Farnells in the morning.

            Comment

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