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Sony SVF152A29M DAOHK9MB6D0 Dead

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    Sony SVF152A29M DAOHK9MB6D0 Dead

    Hi,

    Laptop completely dead and don't react to power switch.

    +3V_WAKE, +5V_WAKE, +3VPCU present

    Checking NUVOTON NCPE985LA0DX line "NBSWON#" (power switch ) wont rise to 3v.

    After replacing EC NCPE chip the problem mantain exacly the same.

    Question. Does this chip need to be programmed ?
    Does anyone have a power up sequence for this board ?

    Any help at all ?

    Thanks

    #2
    Re: Sony SVF152A29M DAOHK9MB6D0 Dead

    Schematic https://www.badcaps.net/forum/showth...ht=DA0HK9MB6D0
    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

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      #3
      Re: Sony SVF152A29M DAOHK9MB6D0 Dead

      I have schematics! There is no Power up sequence.
      I have struggle to identify why NBSWON# does not rise.

      Thanks anyway.

      Comment


        #4
        Re: Sony SVF152A29M DAOHK9MB6D0 Dead

        Confirmed it's not a power button problem?
        Did you try toflash the BIOS?
        +5V_S5 and +3V_S5 present?
        OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment


          #5
          Re: Sony SVF152A29M DAOHK9MB6D0 Dead

          Hi Piernov

          Power button checked and OK
          +5V_S5 and +3V_S5 present!
          After flashing Bios chip "NBSWON#" becomes high board starts up.

          Many Thanks for your help.

          Best regards

          Comment

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