Please help identify the problem

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  • buchman
    Badcaps Veteran
    • Aug 2015
    • 283
    • greece
    #1

    Please help identify the problem

    Hi,

    This power supply was connected to a led strip and one day suddenly stopped working.
    The fuse is ok.
    Checked all diodes, all of them are ok except 1 (probably need to desolder it).
    Checked resistors, seems to be ok.
    No bulging caps.

    What else should I do to solve the problem?
    Everything with more than 3 legs I am not so familiar how to check it.
    Attached Files
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31163
      • Albion
      #2
      Re: Please help identify the problem

      the 2 small caps can fail without showing it because they dont have a vent on top

        Comment

        • keeney123
          Lauren
          • Sep 2014
          • 2536
          • United States
          #3
          Re: Please help identify the problem

          Have you check the output and input voltages?

            Comment

            • budm
              Badcaps Legend
              • Feb 2010
              • 40746
              • USA
              #4
              Re: Please help identify the problem

              'Checked all diodes, all of them are ok except 1 (probably need to desolder it).' Which one? D5? D6? D7?
              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

                • buchman
                  Badcaps Veteran
                  • Aug 2015
                  • 283
                  • greece
                  #5
                  Re: Please help identify the problem

                  D6

                    Comment

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