MacBook Air A2337 820-02016 no power 5v

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  • master3112
    Senior Member
    • Mar 2024
    • 81
    • Slovakia
    #41
    R1583 each side = 0V

    PPDCIN_AONSW to ground = 5V
    My USB-Port Tester is connected between Board and Power-Adpater shows just 5V Input

      Comment

      • mon2
        Badcaps Legend
        • Dec 2019
        • 14258
        • Canada
        #42
        Each CD3217 features LDO rails. The active PD controller (mated to the USB-C port under use) will have all LDO rails enabled. Confirm the voltage of each PD controllers. Each must be working else you will not have 20v.

        Similar to these articles:

        CD3215 Bootup Sequence - LogiWiki

        CD3217 and T2 Power on Sequence - LogiWiki​

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