Hallo everybody,
I got another problem with a MacbookAir (820-3032-A).
Is seems to get in S0 state (taking 300 mA) but not powering on. I noticed that ALL_SYS_PWRGD is missing so i checked the needed rails and found PP1V05_S0 beeing low (0.22V).
So I checked where PP1V05_S0 (resp. PPCPUVCCIO_S0_REG) is created and found Q7630.
I coudl measure the fallowing voltages for Q7630:
Pin Voltage
1/2 8.4
3 0.28
4 0.26
5 0
6/7/8 0.22
Can anybody help me with some hints for further steps?
Thank you and best regards
dudipupan
I got another problem with a MacbookAir (820-3032-A).
Is seems to get in S0 state (taking 300 mA) but not powering on. I noticed that ALL_SYS_PWRGD is missing so i checked the needed rails and found PP1V05_S0 beeing low (0.22V).
So I checked where PP1V05_S0 (resp. PPCPUVCCIO_S0_REG) is created and found Q7630.
I coudl measure the fallowing voltages for Q7630:
Pin Voltage
1/2 8.4
3 0.28
4 0.26
5 0
6/7/8 0.22
Can anybody help me with some hints for further steps?
Thank you and best regards
dudipupan