Question Dead board on MacBook Pro, A2251, 820-01949 ?

[tom_stringer98]

Hello, i need some help. i have a dead board that is only taking 5v and no amps. ppbus g3 h isn't shorted to ground. I also cannot find a short on pp3v3. The usb c controller chips are all good. I cannot find a single short on the board. PP5v is not present when plugged into the cable, is that something i can look into?
Cheers

 

[madagascor]

It sounds like the lack of PP5V is a key issue to investigate. Check the path from the USB-C port to the PP5V rail, including any protection circuits, MOSFETs, or inductors. Verify that the USB-C controller is enabling power delivery correctly. Since there are no shorts, focus on identifying open circuits, damaged components, or missing signals along this path.