820-00164 PPBUS 3.2V

[No-Clean]

Clean board, already replaced Q7180 (2 times), U7000, D7005, Q7010, D7012, C7125

R7005, R7006, R7152, R7151, SMBUS_SDL and SCL are all fine.

Testing with original 45W and fake 85W same thing.

 

[2informaticos]

Remove F7140 and check C7140 voltage.

 

[No-Clean]

C7140 voltage after removing F7140 3.2V

 

[2informaticos]

Post U7100 basic voltages: 1, 2, 3, 9, 12, 13, 14, 15, 17, 18, 19, 20, 27.

Do you get 3V42_G3H?

 

[No-Clean]

3V42_G3H Present

U7100 basic voltages with original 45W adapter and F7140 installed:
1 0
2 15
3 3.9
9 0
12 3.4
13 3.3
14 3.3
15 0
17 3.2
18 3.2
19 3.2
20 5
27 15

 

[2informaticos]

"19 3.2"
I doubt; check it again.

Is C7125 good; replace it, just in case.
Be sure all traces and solders are good in the area.

You can also try replacing Q7130.

R7100 is OK?
Post exact ohm resistance between pins 17/18 & 27/28.

 

[No-Clean]

U7100 basic voltages with original 45W adapter and F7140 installed:
1 0
2 15
3 3.9
9 0
12 3.4
13 3.3
14 3.3
15 0
17 3.2
18 3.2
19 5
20 5
27 15

C7125 was replaced and before or after same result.

Q7130 was it, thanks a lot!