Samsung PN60E550D1F no audio no image only red LED

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  • jose6326
    Badcaps Veteran
    • May 2013
    • 707
    • USA

    #21
    Re: Samsung PN60E550D1F no audio no image only red LED

    anyone?

    Comment

    • ned1
      Senior Member
      • Feb 2014
      • 139
      • usa

      #22
      Re: Samsung PN60E550D1F no audio no image only red LED

      Your VE is also low, you said in first post 10V, should be around 110V. Also you VSC scan is too low as already suggested. You may have bad ysustain and x main also. Remove your xmain and check Y sustain VSC again. When you unplug the board give it few minutes to discharge before reconnecting so you don't short the board.

      Comment

      • ned1
        Senior Member
        • Feb 2014
        • 139
        • usa

        #23
        Re: Samsung PN60E550D1F no audio no image only red LED

        Shop Jimmy has y sustain repair kit for $25.
        http://www.shopjimmy.com/samsung-bn9...repair-kit.htm
        Also they have x-main for $29.
        http://www.shopjimmy.com/samsung-bn9...main-board.htm
        If you decide to purchase repair kit you will need to have soldering gun to remove and install new parts.
        Hope this helps.
        Last edited by ned1; 10-28-2015, 09:39 AM.

        Comment

        • Ogunleye
          New Member
          • Oct 2015
          • 1
          • Nigeria

          #24
          Re: Samsung PN60E550D1F no audio no image only red LED

          Pls I have a Samsung plasma tv 51 it has only red standby led no sound no picture

          Comment

          • jose6326
            Badcaps Veteran
            • May 2013
            • 707
            • USA

            #25
            Re: Samsung PN60E550D1F no audio no image only red LED

            does anyone know what components i should test on the y and x boards?

            i rather test the components first then just replace everything and then it does not resolve the issue

            Comment

            • jose6326
              Badcaps Veteran
              • May 2013
              • 707
              • USA

              #26
              Re: Samsung PN60E550D1F no audio no image only red LED

              Originally posted by ned1
              Your VE is also low, you said in first post 10V, should be around 110V. Also you VSC scan is too low as already suggested. You may have bad ysustain and x main also. Remove your xmain and check Y sustain VSC again. When you unplug the board give it few minutes to discharge before reconnecting so you don't short the board.
              when i remove the xmain to check vsc voltage do i reconnect logic board to the ysus board or leave disconnected?

              Comment

              • ned1
                Senior Member
                • Feb 2014
                • 139
                • usa

                #27
                Re: Samsung PN60E550D1F no audio no image only red LED

                just remove cable that goes from y-sustain to x-main.

                Comment

                • jose6326
                  Badcaps Veteran
                  • May 2013
                  • 707
                  • USA

                  #28
                  Re: Samsung PN60E550D1F no audio no image only red LED

                  Ok so I rested xmain as suggested

                  I disconnected the xmain cable going to the ysus
                  Logic board disconnected from the ysus and xmain
                  VE 10.92v no green led blinking

                  I disconnected the xmain cable going to the ysus
                  Logic board disconnected from the ysus
                  Logic board connected to xmain
                  VE 16.42v with green led blinking

                  I disconnected the xmain cable going to the ysus
                  Logic board connected to the xmain and ysus
                  VE 10.90v green led blinking

                  I disconnected the xmain cable going to the ysus
                  Logic board disconnected from the xmain
                  Logic board connected to the ysus
                  VE 10.90v no blinking green led

                  Anything else I can test?

                  Comment

                  • ned1
                    Senior Member
                    • Feb 2014
                    • 139
                    • usa

                    #29
                    Re: Samsung PN60E550D1F no audio no image only red LED

                    Measure the VSC when you disconnect x-main board.

                    Comment

                    • jose6326
                      Badcaps Veteran
                      • May 2013
                      • 707
                      • USA

                      #30
                      Re: Samsung PN60E550D1F no audio no image only red LED

                      Does it matter if the buffer boards are removed?
                      Last edited by jose6326; 11-02-2015, 05:49 PM.

                      Comment

                      • jose6326
                        Badcaps Veteran
                        • May 2013
                        • 707
                        • USA

                        #31
                        Re: Samsung PN60E550D1F no audio no image only red LED

                        So I tested the vsc on the ysus

                        With the xmain cable disconnected from ysus and logic board connected to ysus the vsc tested -0.028v and dropped to -0.0000


                        With the xmain cable disconnected from ysus and logic board disconnected from the ysus the vsc tested -50.6v
                        I dont understand how that is if there is no cables connected to the ysus????

                        Comment

                        • ned1
                          Senior Member
                          • Feb 2014
                          • 139
                          • usa

                          #32
                          Re: Samsung PN60E550D1F no audio no image only red LED

                          That brings us back to the older recommendation of replacing y-sustain board. If you cant find cheap Y-systain send it for repair or try to purchase repair kit.

                          Comment

                          • jose6326
                            Badcaps Veteran
                            • May 2013
                            • 707
                            • USA

                            #33
                            Re: Samsung PN60E550D1F no audio no image only red LED

                            i plan on buying the repair kit for the ysus but what actual components can i test to determine are faulty?

                            i am also going to order the xami as well from shopjimmy

                            Comment

                            • freakaftr8
                              Badcaps Legend
                              • Oct 2012
                              • 3743
                              • USA

                              #34
                              Re: Samsung PN60E550D1F no audio no image only red LED

                              Vscan is generated off the ysus. If you remove the flat cable connecting the ysus to the logic board you will have improper vscan readings. I also think your ysus is faulty.

                              Check for faulty shorted mosfets on the ysus. Also open fuses and open resistors.
                              Did I leave the soldering iron on?

                              Comment

                              • jose6326
                                Badcaps Veteran
                                • May 2013
                                • 707
                                • USA

                                #35
                                Re: Samsung PN60E550D1F no audio no image only red LED

                                do you think all mosfets are shorted or certain ones?

                                i checked the fuses and they are good

                                Comment

                                • freakaftr8
                                  Badcaps Legend
                                  • Oct 2012
                                  • 3743
                                  • USA

                                  #36
                                  Re: Samsung PN60E550D1F no audio no image only red LED

                                  With an ohmmeter put the black leg on to the center pin of each MOSFET. the red probe and check end pins of any of those and of any are shorted then that's your problem to start with
                                  Did I leave the soldering iron on?

                                  Comment

                                  • jose6326
                                    Badcaps Veteran
                                    • May 2013
                                    • 707
                                    • USA

                                    #37
                                    Re: Samsung PN60E550D1F no audio no image only red LED

                                    do you know if a ysus board from a cracked screen tv would have shorted components on it?

                                    Comment

                                    • tom66
                                      EVs Rule
                                      • Apr 2011
                                      • 32560
                                      • UK

                                      #38
                                      Re: Samsung PN60E550D1F no audio no image only red LED

                                      Usually not. But it is possible in some rare instances if the buffer board fails for the Y-sustain to be damaged too. And the buffer can fail quite often with damaged panels.
                                      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

                                      • jose6326
                                        Badcaps Veteran
                                        • May 2013
                                        • 707
                                        • USA

                                        #39
                                        Re: Samsung PN60E550D1F no audio no image only red LED

                                        Thanks tom.

                                        I ask because I found a ysus board on ebay that was pulled from a cracked screen

                                        But the seller wants $140
                                        Im trying to get him to sell it for at least 100

                                        I ordered the xmain from shopjimmy
                                        But I wont install it untill I have the ysus

                                        Comment

                                        • ned1
                                          Senior Member
                                          • Feb 2014
                                          • 139
                                          • usa

                                          #40
                                          Re: Samsung PN60E550D1F no audio no image only red LED

                                          You should have ordered also the y-sustain repair kit from shop jimmy, it comes with all parts that are usually shorted and with each part location. Anyway I would recommend not to install new x-main board when installing ebay y-sustain. Install new y-sustain board with x-main unplugged and measure your VCS first. if your VSC voltage is correct then install new x-main. Your old x-main may be OK since VE is created by y-sustain. Let us know how it turns out.

                                          Comment

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