Phillips 50pfl3807/f7 blowing main fuse on power supply

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  • snake91876
    Badcaps Veteran
    • Feb 2013
    • 236
    • United States
    #1

    Phillips 50pfl3807/f7 blowing main fuse on power supply

    Tv blew main fuse, replace and it is ok until I press power on and immediately blows fuse again, pictures below show boards.
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    • Nick's Tvs
      Badcaps Veteran
      • Jan 2014
      • 621
      • USA
      #2
      Re: Phillips 50pfl3807/f7 blowing main fuse on power supply

      What is the part number for the power supply?
      Did you check for shorts on the transistor?

        Comment

        • snake91876
          Badcaps Veteran
          • Feb 2013
          • 236
          • United States
          #3
          Re: Phillips 50pfl3807/f7 blowing main fuse on power supply

          A27UAMPW-001 is the board #, which transistors do I check and can they be checked in the board.

            Comment

            • vinceroger69
              Badcaps Legend
              • Mar 2012
              • 6714
              • uk
              #4
              Re: Phillips 50pfl3807/f7 blowing main fuse on power supply

              start by checking the bridge rectifier then the other transistors on the the heat sinks etc also theres a few diodes on the primary side too check you can check these on the board if any test odd remove them and retest them.

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