ViewSonic n2750 Replacement Transformer

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  • ClitCommander
    New Member
    • Aug 2013
    • 5
    • USA

    #1

    ViewSonic n2750 Replacement Transformer

    I am looking to replace a 4006A 546 372 <GP> Transformer
    Can anyone point me to somewhere online where I can by the same one, or a compatible one?

    Let me know if pics are needed!
    thanks!
  • ClitCommander
    New Member
    • Aug 2013
    • 5
    • USA

    #2
    Re: ViewSonic n2750 Replacement Transformer

    Anyone? Anyone? Bueller? Anyone?

    Comment

    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA

      #3
      Re: ViewSonic n2750 Replacement Transformer

      May I ask what kind of failure on this transformer? Picture and model number of this power supply? FSPXXXX?
      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

      • ClitCommander
        New Member
        • Aug 2013
        • 5
        • USA

        #4
        Re: ViewSonic n2750 Replacement Transformer

        Originally posted by budm
        May I ask what kind of failure on this transformer? Picture and model number of this power supply? FSPXXXX?

        FSP204-2F01

        When I tested the transformers by touching 1-8 & 4-5 with Red/Black on my DMM (200k setting) all but one registered as a 0.9, or a 1.0.

        This was pins 4-5 on the middle transformer (#4 from top or bottom)
        It registered a 5.9, or 6.0
        Pin 1-8 on the same transformer read a normal 1.0

        ALL caps seem ok. TV has 2 seconds to black problem (more like 0.5 seconds to black)




        Comment

        • budm
          Badcaps Legend
          • Feb 2010
          • 40746
          • USA

          #5
          Re: ViewSonic n2750 Replacement Transformer

          Those are normal reading when you test with an Ohm meter, they will have very low resistance. To the switching circuits, the impedance of the transformer will be high due to high frequency switching AC applied to the transformer windings.
          Last edited by budm; 08-07-2013, 11:20 AM.
          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

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