kevinklinkmuller
Member
this one has 5V on amp meter, i already replaced the two CD chips, no difference
PPBUS is 12.3v
PP3v3_g3h_rtc is 0.8V though
PPBUS is 12.3v
PP3v3_g3h_rtc is 0.8V though
-
For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.Subscribe Now
820-01987 5V USB C, no liquid damage
- Thread starter kevinklinkmuller
- Start date
Diode mode to ground at 3V3_G3H_RTC?
Compare with good board.
Compare with good board.
kevinklinkmuller
Member
Got 0.359 on the faulty board and 0.45 on a CPU dead board same model
Check R6910-13 and their traces.
Post U6903 voltages.
Post U6903 voltages.
kevinklinkmuller
Member
R6910-13 all good
U6903 pins:
1. 12.3
2. 0.8
4. 0.8
8. 0.8
14. 0.8
16. 4.8
20. 5.1
24. 0.8
U6903 pins:
1. 12.3
2. 0.8
4. 0.8
8. 0.8
14. 0.8
16. 4.8
20. 5.1
24. 0.8
Change U6903...
kevinklinkmuller
Member
FIXED! U6903 change solved it. you legendary legend you!