Macbook A2780 (820-02890)

[Instafixx]

Schematics is similar to 820-02100

PPBUS is 12.3V
Amp Meter is 5V and No Amp Draw.

No Liquid Spill. How to proceed ?

 

[2informaticos]

What about PPBUS_AON and 3V8_AON?

 

[Instafixx]

3V8_AON shorted.
Injected 1V but nothing got hot.

Went upto 1.5V with 5.5A.
Still nothing. One cap was showing 28 degrees. Removed that. But nothing.
Can we go higher ?

Although Ohms to Ground is 2.2
Diode to ground is .004

 

[Instafixx]

Issue Resolved. Went upto 2V.
Caps replaced.