startup issue on Samsung PE43H4500 Plasma TV

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  • Mikeyboy2007
    Badcaps Veteran
    • Mar 2013
    • 745
    • Scotland
    #1

    startup issue on Samsung PE43H4500 Plasma TV

    Hi guys i got a boxed Samsung PE43H4500 Plasma TV which started up no problem but had loads of red dots / pixels on screen. i remember posting about a tv like this before and remembered it was the Ysus board however i purchased another Ysus to install in tv and now tv does not boot up at all. the standby light just flashes constantly and the logic board inside has strange flash pattern, could someone advise what the fault could be ? i have attached a video showing the flash pattern. any help would be greatly appreciated thanks.

    https://www.youtube.com/watch?v=hM0Ue7-erZs
    Tags: None
    • martino
      Not so "senior"
      • Aug 2013
      • 997
      • canada
      #2
      Re: startup issue on Samsung PE43H4500 Plasma TV

      bought bad y sus board.
      video of original y sus red dots ?
      Pictures of all boards? Did you measure Vs Va etc?
      Proud owner of dozens of broken TV's and many,many,many boards.


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

        Comment

        • Mikeyboy2007
          Badcaps Veteran
          • Mar 2013
          • 745
          • Scotland
          #3
          Re: startup issue on Samsung PE43H4500 Plasma TV

          Yeah mate original board is red dots, is there a way to repair the purchased board ? Give me a few minutes i will upload all pictures.

            Comment

            • dskall
              Badcaps Legend
              • Oct 2016
              • 2905
              • usa
              #4
              Re: startup issue on Samsung PE43H4500 Plasma TV

              Do your supply voltages match your panel voltages with old board? Might try adjusting voltages down a little see if it has any effect.
              I assume no responsibility for any stupid suggestions I might post.

                Comment

                • Mikeyboy2007
                  Badcaps Veteran
                  • Mar 2013
                  • 745
                  • Scotland
                  #5
                  Re: startup issue on Samsung PE43H4500 Plasma TV

                  heres the pictures. couldnt upload on phone last night.
                  Attached Files

                    Comment

                    • Mikeyboy2007
                      Badcaps Veteran
                      • Mar 2013
                      • 745
                      • Scotland
                      #6
                      Re: startup issue on Samsung PE43H4500 Plasma TV

                      Originally posted by dskall
                      Do your supply voltages match your panel voltages with old board? Might try adjusting voltages down a little see if it has any effect.
                      i got VA and VS from PSU is this correct ? and got VSC from Ysus.

                      VA 58 i tested 54
                      VSC -185 i tested -184
                      VS 210 i tested 189

                        Comment

                        • maxvalutech
                          Badcaps Veteran
                          • Dec 2014
                          • 804
                          • australia
                          #7
                          Re: startup issue on Samsung PE43H4500 Plasma TV

                          Unless your meter is under reading need to adjust Vs and Vs plus what does Ve read (x board).

                            Comment

                            • Mikeyboy2007
                              Badcaps Veteran
                              • Mar 2013
                              • 745
                              • Scotland
                              #8
                              Re: startup issue on Samsung PE43H4500 Plasma TV

                              Originally posted by maxvalutech
                              Unless your meter is under reading need to adjust Vs and Vs plus what does Ve read (x board).
                              i went ahead and adjusted the VA and VS last night however no matter how much i adjusted voltage stayed the same. i then started thinking about PSU so heated up all the caps on the PSU and that would allow me to adjust voltage however would quickly drop back down, for a very short period of time i had no red dots so i have found a PSU on ebay for £15 and ordered that. will update when it arrives. i will check VE.

                                Comment

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