Announcement

Collapse
No announcement yet.

Samsung LCD LN-S4051D, replaced caps, same issue

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Samsung LCD LN-S4051D, replaced caps, same issue

    Hi all, I have replaced the 7 recommended capacitors on the PSU as recommended, but still having the picture go out after the TV runs for a while. It gets pretty warm.

    The picture will not come back on unless I reseat all the connectors on the PSU board. Then once it gets warm, it cuts off again.

    Any ideas?
    Attached Files
    Saved - Element 24" LCD TV, Spectre x22wg-Gamer, LG Plasma DU-42PX12XC, Pioneer Plasma PDP-42A3HD, SONY KDL-55EX501

    #2
    Re: Samsung LCD LN-S4051D, replaced caps, same issue

    What mainboard is it ?
    Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !

    https://www.facebook.com/Telford-Tel...7894576335359/

    Comment


      #3
      Re: Samsung LCD LN-S4051D, replaced caps, same issue

      Originally posted by mack505 View Post
      Hi all, I have replaced the 7 recommended capacitors on the PSU as recommended, but still having the picture go out after the TV runs for a while. It gets pretty warm.

      The picture will not come back on unless I reseat all the connectors on the PSU board. Then once it gets warm, it cuts off again.

      Any ideas?
      cold solder joint?

      Comment


        #4
        Re: Samsung LCD LN-S4051D, replaced caps, same issue

        The main board is a BN41-00679D. 6/26/2006.

        Some of the capacitors had been replaced before as part of the warranty. I think when I unsoldered this time, the solder pad lifted up on 2 of them. Dead in the water?
        Saved - Element 24" LCD TV, Spectre x22wg-Gamer, LG Plasma DU-42PX12XC, Pioneer Plasma PDP-42A3HD, SONY KDL-55EX501

        Comment


          #5
          Re: Samsung LCD LN-S4051D, replaced caps, same issue

          pictures?

          Comment


            #6
            Re: Samsung LCD LN-S4051D, replaced caps, same issue

            Solder connects on ICM801 regulator

            Comment


              #7
              Re: Samsung LCD LN-S4051D, replaced caps, same issue

              Is this your main board?
              http://www.shopjimmy.com/samsung-bn9...main-board.htm
              Last edited by budm; 09-24-2015, 05:05 PM.
              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


                #8
                Re: Samsung LCD LN-S4051D, replaced caps, same issue

                Hard to get good pics, but here are a few. I obviously need to get better and solder/desoldering, just wonder if this one is toast.

                Originally posted by Terryfictv View Post
                Solder connects on ICM801 regulator
                The solder connects look ok on ICM801
                Attached Files
                Saved - Element 24" LCD TV, Spectre x22wg-Gamer, LG Plasma DU-42PX12XC, Pioneer Plasma PDP-42A3HD, SONY KDL-55EX501

                Comment


                  #9
                  Re: Samsung LCD LN-S4051D, replaced caps, same issue

                  Originally posted by budm View Post
                  Yes, that's it.
                  Saved - Element 24" LCD TV, Spectre x22wg-Gamer, LG Plasma DU-42PX12XC, Pioneer Plasma PDP-42A3HD, SONY KDL-55EX501

                  Comment


                    #10
                    Re: Samsung LCD LN-S4051D, replaced caps, same issue

                    Ooyyyyyyy! But that can be repaired easily, at least for someone who knows how.

                    Comment


                      #11
                      Re: Samsung LCD LN-S4051D, replaced caps, same issue

                      Originally posted by CapLeaker View Post
                      Ooyyyyyyy! But that can be repaired easily, at least for someone who knows how.
                      Yeah... pfffvt. Welp, any direction? I saw this thread that shows someone exposing the copper, tinning it and using a patch...

                      http://home.comcast.net/~machrone/bjr/mistakes.htm
                      Saved - Element 24" LCD TV, Spectre x22wg-Gamer, LG Plasma DU-42PX12XC, Pioneer Plasma PDP-42A3HD, SONY KDL-55EX501

                      Comment


                        #12
                        Re: Samsung LCD LN-S4051D, replaced caps, same issue

                        Yep, you got the idea! You also can use a small piece of wire, to the exposed copper and one turn around the leg of the cap. maybe google something like pcb repair or trace / pad repair... something along that line.
                        What happened to you was / is your soldering iron ran out of heat, it isn't big enough wattage wise.

                        Comment


                          #13
                          Re: Samsung LCD LN-S4051D, replaced caps, same issue

                          Clean off flux with old toothbrush and denatured alcohol.

                          Comment


                            #14
                            Re: Samsung LCD LN-S4051D, replaced caps, same issue

                            Originally posted by CapLeaker View Post
                            Yep, you got the idea! You also can use a small piece of wire, to the exposed copper and one turn around the leg of the cap. maybe google something like pcb repair or trace / pad repair... something along that line.
                            What happened to you was / is your soldering iron ran out of heat, it isn't big enough wattage wise.
                            Ok, I will give it a shot. So I was using a desolderer, with the bulb that sucks up the solder. The soldering iron I have is a 15/30w, usually use it on 30.
                            Saved - Element 24" LCD TV, Spectre x22wg-Gamer, LG Plasma DU-42PX12XC, Pioneer Plasma PDP-42A3HD, SONY KDL-55EX501

                            Comment


                              #15
                              Re: Samsung LCD LN-S4051D, replaced caps, same issue

                              yeah... I figured.

                              Comment


                                #16
                                Re: Samsung LCD LN-S4051D, replaced caps, same issue

                                Originally posted by CapLeaker View Post
                                yeah... I figured.
                                I should grab a higher watt iron than my 30 you think? And/or should I avoid using the desolderer?
                                Saved - Element 24" LCD TV, Spectre x22wg-Gamer, LG Plasma DU-42PX12XC, Pioneer Plasma PDP-42A3HD, SONY KDL-55EX501

                                Comment

                                Working...
                                X