2014 Macbook Pro 15" mosfet replacement issue

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  • MicroSMD Lab
    Senior Member
    • Sep 2018
    • 139
    • Trinidad and Tobago
    #1

    2014 Macbook Pro 15" mosfet replacement issue

    Hi, I replaced CPU mosfets in an 820-3662A board and I'm not getting any voltage on the coils. I'm not getting PP5V_S0 either. PPBUS_G3H and PP3V42_G3H are present, getting green and orange light on the charger. Does this board need to connected to more than the dc-in board to power up? Any advice on how to move forward would be appreciated. I did a 2015 cpu mosfet replacement just before and all went well.

    Oh no.... I just realized I posted in the wrong section. Mods, please excuse me.
    Tags: None
    • SMDFlea
      Super Moderator
      • Jan 2018
      • 20596
      • UK
      #2
      Re: 2014 Macbook Pro 15" mosfet replacement issue

      Thread moved, no worries
      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

        Comment

        • MicroSMD Lab
          Senior Member
          • Sep 2018
          • 139
          • Trinidad and Tobago
          #3
          Re: 2014 Macbook Pro 15" mosfet replacement issue

          Ok, so I put the board back in the case and it only boots with the battery connected, is this normal or signs of another issue? I get green and orange lights and charging symbol.

            Comment

            • piernov
              Super Moderator
              • Jan 2016
              • 4435
              • France
              #4
              Re: 2014 Macbook Pro 15" mosfet replacement issue

              https://www.badcaps.net/forum/showthread.php?t=88758
              Always make sure the correct AC adapter was used with the machine. Genuine original AC adapter of the correct brand and correct power rating.
              OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

                Comment

                • MicroSMD Lab
                  Senior Member
                  • Sep 2018
                  • 139
                  • Trinidad and Tobago
                  #5
                  Re: 2014 Macbook Pro 15" mosfet replacement issue

                  Thanks piernov, this of course raises another question..... how can we identify a genuine apple charger? With the range of prices out there, I could only imagine there are non-genuine ones that make it to owners. BTW, I used the same charger on a 2015 MBP just yesterday and it worked fine.

                    Comment

                    • mon2
                      Badcaps Legend
                      • Dec 2019
                      • 13948
                      • Canada
                      #6
                      Re: 2014 Macbook Pro 15" mosfet replacement issue

                      Jump to the operation of the magsafe chargers..

                      http://www.righto.com/2015/11/macboo...ising.html?m=1

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