a1708 Zero power through usb meter found short?

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  • irepair559
    Senior Member
    • Dec 2022
    • 134
    • United States
    #1

    a1708 Zero power through usb meter found short?

    Hi gang ok i got a Macbook A1708 thats dead. On usb meter nothing at all Zero.. So took board out and injected 3v 2A on fuse near Usb controller ic closest to port. That Ic got super hot instantly. Also the caps along side the charger port were shorted to ground. After removing ic the shorts gone. But 2 pads on line CONN1_CC2 are gone. I think thats the line. I have uploaded pics to verify. Are those pads needed ? if so how can i jump those and to where ?
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    • Aliseo
      Member
      • Dec 2022
      • 12
      • Italy
      #2
      Re: a1708 Zero power through usb meter found short?

      check on .brd file

        Comment

        • irepair559
          Senior Member
          • Dec 2022
          • 134
          • United States
          #3
          Re: a1708 Zero power through usb meter found short?

          Originally posted by Aliseo
          check on .brd file
          whats that?

            Comment

            • mon2
              Badcaps Legend
              • Dec 2019
              • 14665
              • Canada
              #4
              Re: a1708 Zero power through usb meter found short?

              .brd = boardview file

              From this file, you can select the pad and check if the pad is linked to another component on the logic board. Be sure to confirm TOP and bottom side of the PCB. Often, once you select the pad -> the right side of the viewer will offer a table of linked parts for that selected pad (if any).

                Comment

                • irepair559
                  Senior Member
                  • Dec 2022
                  • 134
                  • United States
                  #5
                  Re: a1708 Zero power through usb meter found short?

                  ok found where those pad go they go to the actual charger port bummer , thats a lot of work to jumper those pads. Do i need them guys ? what do they control exactly? Also i just found out the other usb controller ic gets really hot when i inject 3v 2A to the fuse right under it?? Same exact thing as the other one ! ( the one i took off ) So maybe i took off that ic and theres no issue maybe its normal for them to get hot from that current ? im confused now i thought i found the issue when now im just confused.. can both be bad or maybe its just the charger port it self thats bad? I was getting Zero volts on usb meter, and tested many caps and fuses right where the charger port is and no voltage at all. So can those usb charger port ic's cause such issue? tThe pads are USBC_XB_USB_BOT_P
                  Attached Files
                  Last edited by irepair559; 12-17-2022, 09:45 PM.

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