Samsung UA40B7000 LED TV Clicking sound, Doesn't turn on.

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  • spirallingspiral
    New Member
    • Nov 2015
    • 8
    • USA
    #1

    Samsung UA40B7000 LED TV Clicking sound, Doesn't turn on.

    Hello everyone, My Samsung led tv recently stopped working and the problem seems to be the mainboard as pointed out by the samsung tech guy. Sadly it cant be replaced as samsung doesn't have a spare board nor can i find it on the internet. The problem started after a sudden power outage while i was watching tv, settopbox connected to hdmi.

    When i turn on the tv, the red power light blinks once and i hear a clicking sound inside the tv. Once the powersupply cable is removed from the mainboard, the clicking stops and the backlight lights up. Is there any way to repair the board? or are there any compatible boards that would go with my tv?

    I have attached the model numbers of my mainboard and powersupply, Any tips/suggestions would be of great help!

    Thank you.
    Attached Files
    Tags: None
    • martino
      Not so "senior"
      • Aug 2013
      • 997
      • canada
      #2
      Re: Samsung UA40B7000 LED TV Clicking sound, Doesn't turn on.

      can i get a good picture that shows the entire mainboard? I just stripped a couple led samsungs,will check then if i have a mainboard. Sometimes different bn41 numbers can match.
      On fixing your mainboard,you can try and measure all voltage regulators,maybe you get lucky and find a defective one. often eeprom just goes corrupt on power jolts like that.
      Proud owner of dozens of broken TV's and many,many,many boards.


      Our website and passion:http://hollenhundshepherds.com/

        Comment

        • CapLeaker
          Leaking Member
          • Dec 2014
          • 8005
          • Canada
          #3
          Re: Samsung UA40B7000 LED TV Clicking sound, Doesn't turn on.

          We need really good pix of the front and back of the main board.

            Comment

            • spirallingspiral
              New Member
              • Nov 2015
              • 8
              • USA
              #4
              Re: Samsung UA40B7000 LED TV Clicking sound, Doesn't turn on.

              Thanks for the reply guys and sorry for the late reply, i was outta town. I have attached the full pictures of top and back view of my board. Will any other board work with my tv?
              Attached Files

                Comment

                • spirallingspiral
                  New Member
                  • Nov 2015
                  • 8
                  • USA
                  #5
                  Re: Samsung UA40B7000 LED TV Clicking sound, Doesn't turn on.

                  Bump

                    Comment

                    • cliff_hootarski
                      Badcaps Veteran
                      • Jul 2006
                      • 411
                      • USA
                      #6
                      Re: Samsung UA40B7000 LED TV Clicking sound, Doesn't turn on.

                      Big white rectangular sticker, left and center of board,picture #1. It has a BN94-XXXXX number. That's the number you have to do a internet search for.

                        Comment

                        • spirallingspiral
                          New Member
                          • Nov 2015
                          • 8
                          • USA
                          #7
                          Re: Samsung UA40B7000 LED TV Clicking sound, Doesn't turn on.

                          I guess i am outta luck, tried searching that but not a single result
                          Attached Files

                            Comment

                            • spirallingspiral
                              New Member
                              • Nov 2015
                              • 8
                              • USA
                              #8
                              Re: Samsung UA40B7000 LED TV Clicking sound, Doesn't turn on.

                              Managed to get an old board that worked but the hdmi ports are not working, when i choose hdmi in the source, the tv menu gets absurdly slow and shows searching for signal. Are there any alternatives to connect hdmi content to my tv, like hdmi to usb port of my tv?

                                Comment

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