820-00165 no green light

[Sr. Robot]

Hi, got a 820-00165 with no green light. No signs of liquid damage.

PP3V42_G3H is 2.8v

PPBUS_G3H is 8.1v

PPDCIN_G3H is 16.5v measured on pin 1 of J7000

Tried known working DC In bord no change. Tried 85w OEM apple charger, no change.

Replaced Q7180, no change.

 

[Sr. Robot]

R7095 and R7096 are good.

Resistance to ground on PP3V42_G3H is 10ohms

 

[2informaticos]

Inject 4V (max) and look with IR camera.

 

[Sr. Robot]

Injected 4v but nothings getting hot on the board.

I noticed that if i heat the U7090 area, then the machine turns on for a while until it cools down and PP3V42_G3H goes back to 2.8v.

I replaced U7090, C7098, C7099, C7090, C7091, and C7080 just in case, but no change.

 

[2informaticos]

Play with R7095/6 to get correct voltage.

 

[Sr. Robot]

i put 100k and a 60k resistors. Now machine works great. Thanks