820-001700 PPBUS short

[ajdoc]

No liquid damage.

Removed F7000/1 and when connected charger have 12.27V on pad 1 of F7000.
Pad 2 (PPBUS_G3H) is shorted to ground - 0.9 Ohm resistance to ground.

Big coils:
LA950 27.5 Ohm
LA870 44 Ohm
LA860 43.8 Ohm
LA850 40.4 Ohm
LA750 6.4 Ohm
L7231 3.4 Ohm
L7330 17.3 Ohm
L7221 4.3 Ohm
L7211 3.4 Ohm
L7420 6.8 Ohm
l7410 6.8 Ohm

PP2V5_SSD0/1 not shorted.

Injected 1V in to PPBUS and nothing gets warm.

Any ideas?

 

[2informaticos]

Increase the voltage slowly.
Set PSU amp limit to max first.

 

[ajdoc]

At 2V C6451 was getting a little warm.
Replaced and all works fine - fixed

Many thanks