LG tv main board replacement

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  • sciko67
    New Member
    • Jul 2014
    • 3
    • United States
    #1

    LG tv main board replacement

    My question is if I can use a main board with the same set up, but different part number in my 42" LG tv.

    Lightning struck in my back yard. I believe a surge went through my now fried satellite box, and up the hdmi cord, and fried the main board on my 42LK520-UA model LG tv. I when I try to turn on the tv, the power light just blinks. I have already replaced the power supply, and it didn't fix it, so I am quite certain it is the main board. The board number on my main board is EAX64290501(0), and it has the part numbers EBT61525911 and EBR73308809. I have looked everywhere for these exact part numbers, and they are out stock everywhere. I have noticed though if I merely search for "42lk520-ua main board" I find main boards for sale easily, but with different part numbers. Will one of these work?
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: LG tv main board replacement

      I would contact shopjimmy, they are really helpful on getting the correct board.
      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

        • MagicSmoke
          Badcaps Veteran
          • Feb 2011
          • 275
          • USA
          #3
          Re: LG tv main board replacement

          Found 35 on fleabay w/ first P/N. Only one with second P/N. And 2 with the 3rd P/N.
          Last edited by MagicSmoke; 07-30-2014, 07:39 PM.

            Comment

            • sciko67
              New Member
              • Jul 2014
              • 3
              • United States
              #4
              Re: LG tv main board replacement

              The one on the second just might work. The board number had nothing to do with the programming, and the third number usa apparently also on some boards for 47" tvs, so it might only be the part number of a component.

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA
                  #5
                  Re: LG tv main board replacement

                  Typical board will have white silkscreen numbers printed directly on the board, that will be the P/N and the revision number of the blank board without parts installed, then there will be barcode sticker with numbers and barcode printed on the sticker, that will be the PCBA (PRINTED CIRCUIT BOARD ASSEMBLY) P/N.
                  Same blank board can be used by more than one model of the TV, the board will be stuffed with different components for the needed function of the particular TV, that is why you should look for the PCBA P/N, then there will be REV number to indicate which revision the board is in case the design or the improvement may have been made.
                  Last edited by budm; 07-31-2014, 09:22 AM.
                  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

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