820-3115 b MacBook Pro no usb working

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  • lordgeny
    Badcaps Veteran
    • Apr 2016
    • 223
    • Italia
    #1

    820-3115 b MacBook Pro no usb working

    Hi i have this laptop with usb not working , i found u4600 heating .
    I found PP5V_S3_USB_A_ILIM short to ground . What can i do ??

    i thinked remove u4600 and inject 5v on the lin to see what heat up
    Tags: None
    • piernov
      Super Moderator
      • Jan 2016
      • 4435
      • France
      #2
      Re: 820-3115 b MacBook Pro no usb working

      Chances are the culprit will be either U4600, D4600 or the connector J4600 itself that's damaged. I'd start by removing D4600, the most likely to be shorted if connector looks fine.
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment

        • lordgeny
          Badcaps Veteran
          • Apr 2016
          • 223
          • Italia
          #3
          Re: 820-3115 b MacBook Pro no usb working

          fixed was c4695 in short , no need to remove and inject voltage , caps was visible damage under scope

            Comment

            • lordgeny
              Badcaps Veteran
              • Apr 2016
              • 223
              • Italia
              #4
              Re: 820-3115 b MacBook Pro no usb working

              that it
              Attached Files

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                • piernov
                  Super Moderator
                  • Jan 2016
                  • 4435
                  • France
                  #5
                  Re: 820-3115 b MacBook Pro no usb working

                  Ah right, I missed c4695. Good job!
                  OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

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