Samsung LE40D580 dead no power after "pop" sound

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  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK
    #1

    Samsung LE40D580 dead no power after "pop" sound

    Picked up this Samsung 40" (CCFL backlit) from 2011 for not too much, it is dead no power. Previous owner claims it made a load pop then stopped working.

    The STR-W6052S is blown, main standby/run controller. Seems like it does not have much thermal paste on it!

    Anyone else seen this?

    The component is £3 so I'll just replace it outright.

    It uses BN44-00440A power board.
    Last edited by tom66; 10-18-2015, 02:07 PM.
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.
    Tags: None
    • tom66
      EVs Rule
      • Apr 2011
      • 32560
      • UK
      #2
      Re: Samsung LE40D580 dead no power after "pop" sound

      Fixed the set after replacing the STW-W6052S, everything good there now set powers up with crystal clear picture.
      However PFC bus voltage only 330V - I suspect the PFC IC is bad so I will need to replace that. It may have been damaged by the original failure.
      Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
      For service manual, schematic, boardview (board view), datasheet, cad - use our search.

        Comment

        • jose6326
          Badcaps Veteran
          • May 2013
          • 707
          • USA
          #3
          Re: Samsung LE40D580 dead no power after "pop" sound

          hey tom66 can you post pics of what you replaced for future reference


          thanks

            Comment

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