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A1708 5V chip on boardview missing

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    A1708 5V chip on boardview missing

    Hi all,

    I need some help to identify a chip that is missing in all boardview files i found.
    820-00840-A Board for the A1708 with a 5V issue.

    via voltage injection on PP3V3_G3H_VR i found a hotspot near the USB C port.
    when i check the boardview the chip is not there.

    Does anyone know what chip this is?
    Attached Files

    #2
    Re: A1708 5V chip on boardview missing

    It is likely the ACE controller = U3100 on the opposite side of the PCB.

    Comment


      #3
      Re: A1708 5V chip on boardview missing

      https://logi.wiki/index.php/Schemati...s_Availability
      820-00840 ❌ ✅ Use 820-00875 which does not have the PI3USB32224BXEAE near USB-C ports and different populated parts for SSD_BOOT_L/SSD_PWR_EN_L (see A1708 SSD). Correct boardview is available in XinZhiZao.
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

      Comment


        #4
        Re: A1708 5V chip on boardview missing

        Yeah that's the USB-C redriver and it frequently shorts pp3v3_g3h. Sometimes it has a hole and requires a wire to be run to the tiny 'neck' of one or two of the traces into the board, in worst cases.

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          #5
          Re: A1708 5V chip on boardview missing

          Thank you!

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