S24A450BW Samsung Monitor does not work ...

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  • angel-boy
    Badcaps Veteran
    • Jan 2013
    • 550
    • Romania

    #1

    S24A450BW Samsung Monitor does not work ...

    S24A450BW Samsung Monitor does not work, the LED does not light, no picture, I noticed that they tried to repair. was burned 9997GH, I changed it, its blue LED lit for a second, then no light and change it again 9997GH, but nothing happened.

    - where to find service manual ?
    - may be the problem of re-programmed FLASH MEMORY 25X40BVSIG ?

    Thanks in advance!
    Attached Files
  • selldoor
    Slow Learner
    • Dec 2010
    • 7870

    #2
    Re: S24A450BW Samsung Monitor does not work ...

    Have you got the correct power supply for it 14v is an odd one?
    Please upload pictures using attachment function when ask for help on the repair
    http://www.badcaps.net/forum/showthread.php?t=39740

    Comment

    • angel-boy
      Badcaps Veteran
      • Jan 2013
      • 550
      • Romania

      #3
      Re: S24A450BW Samsung Monitor does not work ...

      I have one original 14v 1.7a, and universal 14v 2a, does not work with any of them.

      Comment

      • selldoor
        Slow Learner
        • Dec 2010
        • 7870

        #4
        Re: S24A450BW Samsung Monitor does not work ...

        Is the white fuse ok? What voltage on each side with respect to ground.
        What voltage on the 2 coils (with 100 and 220 on) and what voltage on the 3 caps in PIc2

        What is with the red wire - some sort of repair?
        Please upload pictures using attachment function when ask for help on the repair
        http://www.badcaps.net/forum/showthread.php?t=39740

        Comment

        • angel-boy
          Badcaps Veteran
          • Jan 2013
          • 550
          • Romania

          #5
          Re: S24A450BW Samsung Monitor does not work ...

          is just an improvisation, but the board has power, tomorrow make measurements and write on picture all voltages.

          Comment

          • selldoor
            Slow Learner
            • Dec 2010
            • 7870

            #6
            Re: S24A450BW Samsung Monitor does not work ...

            Originally posted by angel-boy
            is just an improvisation,
            Sort of guessed that but wonder why? Looks like it is connected to the third pin
            on that socket which can only be a few millimeters from where they have soldered the wire to the top of the board.
            Please upload pictures using attachment function when ask for help on the repair
            http://www.badcaps.net/forum/showthread.php?t=39740

            Comment

            • angel-boy
              Badcaps Veteran
              • Jan 2013
              • 550
              • Romania

              #7
              Re: S24A450BW Samsung Monitor does not work ...

              hope this help !
              Attached Files

              Comment

              • selldoor
                Slow Learner
                • Dec 2010
                • 7870

                #8
                Re: S24A450BW Samsung Monitor does not work ...

                Ok voltage on the top left socket - is that the connector for the led back light?

                In the pink box there should be a ferrite bead - is it still in place?

                Can you list some of the part number for the larger ICs - numbered them on pic
                Attached Files
                Please upload pictures using attachment function when ask for help on the repair
                http://www.badcaps.net/forum/showthread.php?t=39740

                Comment

                • angel-boy
                  Badcaps Veteran
                  • Jan 2013
                  • 550
                  • Romania

                  #9
                  Re: S24A450BW Samsung Monitor does not work ...

                  Hy ,in the pink box is a ferrite bead, is in place.

                  i will edit photo tomorrow with ICs number or model .

                  but i`m sure that 0.20v at one cap in the corner is not good
                  Last edited by angel-boy; 01-25-2015, 11:15 AM.

                  Comment

                  • selldoor
                    Slow Learner
                    • Dec 2010
                    • 7870

                    #10
                    Re: S24A450BW Samsung Monitor does not work ...

                    I would agree similarly a cap rated at 50v with 7v falling is not good and if the
                    8 legged ics are mosfets a different voltage on each pin is a worry?
                    Please upload pictures using attachment function when ask for help on the repair
                    http://www.badcaps.net/forum/showthread.php?t=39740

                    Comment

                    • angel-boy
                      Badcaps Veteran
                      • Jan 2013
                      • 550
                      • Romania

                      #11
                      Re: S24A450BW Samsung Monitor does not work ...

                      i dont know realy , this new models, still working to understand them.

                      Comment

                      • angel-boy
                        Badcaps Veteran
                        • Jan 2013
                        • 550
                        • Romania

                        #12
                        Re: S24A450BW Samsung Monitor does not work ...

                        list some part number for the larger ICs
                        Attached Files

                        Comment

                        • angel-boy
                          Badcaps Veteran
                          • Jan 2013
                          • 550
                          • Romania

                          #13
                          Re: S24A450BW Samsung Monitor does not work ...

                          help......?...

                          Comment

                          • tom66
                            EVs Rule
                            • Apr 2011
                            • 32560
                            • UK

                            #14
                            Re: S24A450BW Samsung Monitor does not work ...

                            If you get stuck I think have a board from an S24B350 Syncmaster which might fit? Came out of my monitor that I sadly knocked over and cracked the screen on.
                            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

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