Samsung LN40B500P3F

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  • pansatdishman
    Senior Member
    • Jun 2013
    • 110
    • Canada

    #1

    Samsung LN40B500P3F

    Hello all,
    I have a Samsung 40 LCD, I bought this thinknig it was a power supply issue, so I changed all the big capacitors,
    What happens is when you plug it in all that happens is the red light turns on you hit the power button on the tv or remote nothing happens, just stays a solid light
    so when i unplug the cord going from the power board to the input board, the screen lights up lcd,
    how do i fix this thanks?
  • Hamie
    Badcaps Legend
    • Apr 2014
    • 1383
    • UK

    #2
    Re: Samsung LN40B500P3F

    if backlight turns on without the mainboard connected.
    You'll need to repair or replace the mainboard.

    Comment

    • pansatdishman
      Senior Member
      • Jun 2013
      • 110
      • Canada

      #3
      Re: Samsung LN40B500P3F

      wheres the mainboard? thanks

      Comment

      • truep
        Badcaps Veteran
        • Aug 2010
        • 373
        • USA

        #4
        Re: Samsung LN40B500P3F

        The input board you unplugged.

        Comment

        • pansatdishman
          Senior Member
          • Jun 2013
          • 110
          • Canada

          #5
          Re: Samsung LN40B500P3F

          the one with the hdmi plugs and coax and rca plugs? thanks

          Comment

          • vinceroger69
            Badcaps Legend
            • Mar 2012
            • 6714
            • uk

            #6
            Re: Samsung LN40B500P3F

            yes thats the one is there a sticker with a part number on it?

            Comment

            • newtothis
              Badcaps Legend
              • Mar 2013
              • 1556
              • england

              #7
              Re: Samsung LN40B500P3F

              If you don't know which number to use take a picture and we will point you in the right direction

              Comment

              • pansatdishman
                Senior Member
                • Jun 2013
                • 110
                • Canada

                #8
                Re: Samsung LN40B500P3F

                it says bn41-01276b in white on the board

                Comment

                • pansatdishman
                  Senior Member
                  • Jun 2013
                  • 110
                  • Canada

                  #9
                  Re: Samsung LN40B500P3F

                  heres the board i livre in canada wheres the best place to get it?
                  Attached Files

                  Comment

                  • Terryfictv
                    Senior Member
                    • Mar 2011
                    • 124
                    • USA

                    #10
                    Re: Samsung LN40B500P3F

                    P/N is on the bar code sticker = BN94-02746Y

                    Comment

                    • pansatdishman
                      Senior Member
                      • Jun 2013
                      • 110
                      • Canada

                      #11
                      Re: Samsung LN40B500P3F

                      thanks where can i find this board?

                      Comment

                      • newtothis
                        Badcaps Legend
                        • Mar 2013
                        • 1556
                        • england

                        #12
                        Re: Samsung LN40B500P3F

                        Those boards are quite rare.

                        Comment

                        • pansatdishman
                          Senior Member
                          • Jun 2013
                          • 110
                          • Canada

                          #13
                          Re: Samsung LN40B500P3F

                          can this board be fixed?

                          Comment

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