i have a m1 macbook air(a2337) board 820-02016 that came for water damage and will not turn on. Upon opening i saw that the audio board is severly corroded. I disconected it and still will not turn on. It is drawing only 5v and .1 a. from taking measurements i see that PPCHGR_VDDA has 0v and CHGR_GATE_Q1, CHGR_GATE_Q2 also have 0v and 0ohm to ground.
PPVBAT_AON_CHGR_REG as well as PPBUS_AON is cycling between 10 and 12v
PPDCIN_AON_CHGR_R has 5v
P3V8AON_PWR_EN has 5v
PP3V8_AON_VDDMAIN has 3.8
PPVBAT_AON_CHGR_REG as well as PPBUS_AON is cycling between 10 and 12v
PPDCIN_AON_CHGR_R has 5v
P3V8AON_PWR_EN has 5v
PP3V8_AON_VDDMAIN has 3.8