A1990 - 820-01041 no power

[hgoncalves]

Hi,

I have an A1990 820-01041 with no power.

It only has 5V on ampmeter and 0.01A

All CD3215 LDO and CC1/2 diode readings are normal and no big coil is shorted (includind SSD's).

PPBUS_G3H is shorted, with 0.003 in diode reading. Already removed F7000/1 and U9080 and the short remained.

I've injected 2V and have an 1A consume, but I cant see anything hot in the IR cam with the heatsink removed.

Can you help?

 

[2informaticos]

If no short on big coils (including SSD), then is safe to inject higher voltage.
Increase step by step, using a good thermal camera.