Trying To Rewire Samsung UN48J520

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  • Michale32086
    New Member
    • Nov 2011
    • 1453
    • USA

    #1

    Trying To Rewire Samsung UN48J520

    Had to set the 60" Panny aside.. Have a new project..

    I am trying to rewire the power board on a Samsung.. The board comes from a different model, but the boards outputs are similar..

    I would have thought it would be an easy splice..

    1-
    1+

    2-
    2+

    etc etc..

    But it seems to be I am missing something really basic..

    Here are pics of the two connector pinouts..

    Where's my brain??
    Attached Files
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: Trying To Rewire Samsung UN48J520

    We need to see the pictures of the whole top side and the bottom side to find out how the LED strings are connected together and how many wire actually are being used.
    Board numbers are BN44-???????
    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

    • Michale32086
      New Member
      • Nov 2011
      • 1453
      • USA

      #3
      Re: Trying To Rewire Samsung UN48J520

      Originally posted by budm
      We need to see the pictures of the whole top side and the bottom side to find out how the LED strings are connected together and how many wire actually are being used.
      Board numbers are BN44-???????
      Thanx for the reply, budm

      Board Pics Attached..
      Attached Files

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #4
        Re: Trying To Rewire Samsung UN48J520

        They are not compatible.
        If you look at the Voltage chart for the LED as printed on the board:
        BN44-00852A has loaded LED drive Voltage of 130V @ 730mA for 4 strings of LEDs. How many wires for the LED on this one?
        BN44-00774A has loaded LED drive Voltage of 269V/383mA?? (picture is not clear for me to read the prints) for 5 strings of LEDs. This one shows 5 pairs of wires.
        Last edited by budm; 03-15-2018, 10:36 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

        • Michale32086
          New Member
          • Nov 2011
          • 1453
          • USA

          #5
          Re: Trying To Rewire Samsung UN48J520

          Yea, the 00852A has 4 pairs of wires.. The 00774A has 5 pairs...

          Well, carp... OK At least I don't have to waste anymore time on it..

          Thanx budm....

          Comment

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