Sony KDL-32M3000 No power/standby

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  • tucocaps
    Badcaps Veteran
    • Apr 2013
    • 331
    • United Stated
    #1

    Sony KDL-32M3000 No power/standby

    This one doesn't power on, and it does have 120AC at the power supply plug. On DC side, there is no standby voltage. I believe the fuse near the power plug is blown (no continuity across two silver caps of fuse).

    Would this likely be a power supply problem?

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    • Andrew F. Ali
      Badcaps Legend
      • Jan 2014
      • 2450
      • Trinidad & Tobago
      #2
      Re: Sony KDL-32M3000 No power/standby

      Take the blown fuse out. Check shorts across the main cap and the bridge rectifier, the FET on the primary side of the power trans, open resistors on the primary side may be a possibility also.

        Comment

        • CapLeaker
          Leaking Member
          • Dec 2014
          • 8179
          • Canada
          #3
          Re: Sony KDL-32M3000 No power/standby

          If you don't have 3.3V STBY voltage from the PSU, then yes, that is a PSU problem. Look at page 57 in the SM. Google "KDL-32M3000 service manual and it comes right up. I can't upload it here as it is too big of a file. I looked the PSU schematic over ant there are a few reasons why there is no STBY voltage.

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