Lenovo E520 complete dead

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  • kokono
    Badcaps Veteran
    • Jun 2018
    • 203
    • Germany
    #1

    Lenovo E520 complete dead

    recently i have this laptop ,
    i checked 3.3v and 5v Line and nothings,
    is a chip for both voltage, BD95280MUV
    i measuring two pin that i think they are normal regulator and should working without enable pin
    but i dont have 3.3v and 5v in pin (28 and 29)
    i should change this chip ? Definitely defective?
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    • piernov
      Super Moderator
      • Jan 2016
      • 4435
      • France
      #2
      Re: Lenovo E520 complete dead

      VIN voltage ok on this chip? EDIT: didn't look at the picture, yes it is if 20V is present on the cap.
      No short to ground on pin 28 and 29?
      If that's the case, the chip is probably defective.
      Last edited by piernov; 07-03-2018, 03:11 PM.
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment

        • kokono
          Badcaps Veteran
          • Jun 2018
          • 203
          • Germany
          #3
          Re: Lenovo E520 complete dead

          Yes, VIN ist 20v
          And pin 28 and 29 arent short

            Comment

            • kokono
              Badcaps Veteran
              • Jun 2018
              • 203
              • Germany
              #4
              Re: Lenovo E520 complete dead

              whats different between BD9528A and BD95280 ?

                Comment

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