Samsung 60" Plasma BN44-00514A (P60SW_CPN) SMPS dead problem

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  • Badpowersupply
    Member
    • Dec 2014
    • 20
    • Australia
    #1

    Samsung 60" Plasma BN44-00514A (P60SW_CPN) SMPS dead problem

    Hey guys,

    Maybe someone out there can be so kind to offer some expertise, information, advice?

    BN44-00514A (P60SW_CPN)
    Power supply from 60" Samsung 3D Plasma

    The board seems to have full rectified dc voltage (360v) all over the hot side all the way through the presumed power factor correction transformers, fets, diodes, main caps and on to the main vs transformer and it's fets and the the smaller voltages transformer and it's fet ICE3BR2565JF.

    But nothing to the cold side whatsover, no standby, nothing.

    Being a student of electronics, am really trying to understand how to fix it.

    The leg of the current sense resistor for the ICE3BR2565JF (offline smps controller / startup cell) looks a little brown but seems to test ok at about .4 ohm.
    You think it might be worth replacing the ICE3BR2565JF ?? Samsung had put some clear goop on the bottom of the pcb around this component only.

    Most of the diodes seem to test ok and the fets too i guess.
    All the caps look good, it's less than 2 years old

    Any ideas much appreciated. Thanks
    Tags: None
    • Badpowersupply
      Member
      • Dec 2014
      • 20
      • Australia
      #2
      Re: Samsung 60" Plasma BN44-00514A (P60SW_CPN) SMPS dead problem

      A picture of the board
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