Samsung Plasma pn50c550g1fxza clicking on power up

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  • dman535
    Member
    • Dec 2013
    • 16
    • USA
    #1

    Samsung Plasma pn50c550g1fxza clicking on power up

    This is a 50" plasma that is not powering up. Upon plugging in all I get is clicking from a relay on the power supply board. If I unplug the X main board the unit gives the Samsung tones and appear to come on (minus the screen)

    It is a common fault on these units or is it likely that other components have been taken out? Any diagnostic procedures?
    Tags: None
    • Damtom
      Senior Member
      • Dec 2014
      • 57
      • UK
      #2
      Re: Samsung Plasma pn50c550g1fxza clicking on power up

      I have the same problem with PS50B430P2WXXU, clicking sound, power supply is bn44-00274b. research on net indicates bad capacitors on this power supply, I have changed around 11 capacitors which are very close to heat radiators but still no luck. I would be grateful for any other indication regarding issue
      Attached Files
      Last edited by Damtom; 01-18-2017, 07:38 AM.

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        • rccrasher65
          Badcaps Veteran
          • Mar 2014
          • 619
          • United States
          #3
          Re: Samsung Plasma pn50c550g1fxza clicking on power up

          Got an x-main if you need it!

            Comment

            • ReeceyBurger123
              Never Give Up !
              • May 2014
              • 7325
              • Britain
              #4
              Re: Samsung Plasma pn50c550g1fxza clicking on power up

              Why make a thread, you diagnosed the bloody issue have confidence ! Also wouldn't hurt you to do some research on testing the Xmain but I wont start on that. But yes change Xmain no other questions.
              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

                • dman535
                  Member
                  • Dec 2013
                  • 16
                  • USA
                  #5
                  Re: Samsung Plasma pn50c550g1fxza clicking on power up

                  Originally posted by rccrasher65
                  Got an x-main if you need it!
                  PM sent.

                    Comment

                    • dman535
                      Member
                      • Dec 2013
                      • 16
                      • USA
                      #6
                      Re: Samsung Plasma pn50c550g1fxza clicking on power up

                      Replaced X and Y boards. Unit seems to power up. Green led flashes on control board but I have no screen glow at all. The red LED on the front even seems to be having properly with remote inputs. I found a fast track on it - will go through an check voltages but was curious if anyone had a suggestion on where to start.

                        Comment

                        • ReeceyBurger123
                          Never Give Up !
                          • May 2014
                          • 7325
                          • Britain
                          #7
                          Re: Samsung Plasma pn50c550g1fxza clicking on power up

                          Start with Vsc on the Ysus, buffer can actually be damaged by bad Xmain if the Erc is chained like in this set. Test vsc then remove buffer and retest.
                          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

                            • dman535
                              Member
                              • Dec 2013
                              • 16
                              • USA
                              #8
                              Re: Samsung Plasma pn50c550g1fxza clicking on power up

                              VS is 212 and VA is 55 according to the label. Those appear briefly when the set is powered up, then drop off. Which according to the fast track is correct for power supply testing.

                              VSC called for -187 and is currently showing -82. Same reading when the buffer is disconnected. The voltage seems to drop slowly as its measured,

                                Comment

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