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Hello,
The machine is a 2014 A1398 2.8GHz 16GB DG.
There was liquid damage however the customer decided to wipe away the evidence before brining the laptop in.
I am getting 0.7v on PPBUS_G3H
I am assuming that a short is causing this but can't see or feel anything hot.
Thanks!
There were signs of corrosion on the LCD cable connector.
I didn't get 3V3/5V_S0SW_LCD even momentarily.
Unfortunately or fortunately the customer contacted their insurance company and collected the laptop.
Case closed, thank you for the assistance.
I am looking at an 820-01598 which works almost perfectly.
Sadly the screen is not detected, nothing on the LCD and no backlight. Works when connected to an external.
I have cleaned the board off and can see no damage to traces/components. The backlight IC looks clean.
Attached are some...