#1 MacBook Air M1 2020 (Mobo: 820-02016), A2337 EMC 3598 - PPBUS_AON voltage is missing
от RafiManch • 27 Май 2023, 18:14
Hello Everyone,
I am looking for your help to fix this one please.
When I plug the charger I get 5V and 0A.
My suspect was charging IC (U5200 - Intersil 9240HI).
Resistance to ground for PPBUS_AON is 61.2Ω.
When I have removed U5200 resistance has not changed.
I don't think voltage injection will show any problem when resistance is that high.
Has someone had similar problem please ?
PPBUS_AON goes everywhere on the board. How can I narrow the search please ?
Thank you.
Regards,
Rafal
I am looking for your help to fix this one please.
When I plug the charger I get 5V and 0A.
My suspect was charging IC (U5200 - Intersil 9240HI).
Resistance to ground for PPBUS_AON is 61.2Ω.
When I have removed U5200 resistance has not changed.
I don't think voltage injection will show any problem when resistance is that high.
Has someone had similar problem please ?
PPBUS_AON goes everywhere on the board. How can I narrow the search please ?
Thank you.
Regards,
Rafal