820-00840-a - no ppbus_g3h

[menatwork]

No liquid damage.
Getting 20V on the USB Power Meter. However, 0mAh.
No short to Ground

PPBUS_G3H = 0V

U7000
C7075 = 5V
C7077 = 5V
R7073 = 3.3v
L7030 = 0.2V BOTH SIDE

Seems the U7000 is bad.

 

[2informaticos]

Diode mode to ground at F7000?
Do you get BUF_SMC_RESET_L?
What about TBA_AUX_DET and SMC_BC_ACOK?

 

[menatwork]

Right now, for some reason im getting 5.15V on PPDCIN_G3H

 

[menatwork]

Diode mode to ground at F7000 AND L7030
F7000 = 0.083
L7030 = 0.364

PP3V3_G3H = 2.26V

 

[2informaticos]

So now you don't even get correct 3V3_G3H?
Do you get 5V at R7020?
That should be good enough for 3V3_G3H.

Post U6990 voltages and diode mode to ground at L6990.

Compare diode mode to ground at F7000 with similar good board; 083 looks low.
Also post the value with black probe at ground.
Any big coil has the same value?

 

[menatwork]

R7020 = 5.15V
3V3_G3H = 2.26v

U6990 =
1 = 4.89V
2 = 3.29V
3 = 2.26V
4 = 0V
5 = 0V
6 = 0V
7 = 0V
8 = 3.9V
9 = 0.06V
10 = 5V

L6990 = 0.331 (diode mode to ground with red probe at ground)
F7000 = 0.075 (diode mode to ground with red probe at ground)
L7030 with black probe at ground = 0.469

 

[2informaticos]

"L7030 with black probe at ground = 0.469"
I asked about F7000; is different case than old MacBook boards.

"2 = 3.29V"
No good.
Check if R6906 is OK.
Post voltages for R6906, D6905, C6990.

 

[menatwork]

R9606 its fine.
Voltages:
R9606 = 5.2V
D6906 = Pin 1 = 0 - Pin 2 = 5.2V - Pin 3 = 3.9V
C6990 = 3.9V

 

[2informaticos]

Please correct your last post!

D6905 (if is what you measured) shouldn't get more than 0.5V.
1.3V is too much, change it.
If still get 3.9V there, should check C6990/91, U6990 and U7000.
Just in case, post diode mode to ground on pin2/D6905.
Does it get hot?