A2251 820-01949 No power 5V 0A

jadao

Member
This one got liquid damage near U7000. It is stuck at 5V 0A on all ports.
PPBUS_G3G is missing and no short with diode mode value of 0.400.
Checked all big coils including the ssd one L9080/81 and there is no short.
I replaced U7000, checked both R7021/22 and R7061/62 and still nothing dead at 5V with no amps draw...
I removed F7000 and still PPBUS_G3H is missing on both sides.

I do get 5V on CSIN and CSIP at U7000 Aux det is ok according to the voltage divider (1.2V))
It looks like U7000 is not starting or boosting, VDDA and VDDP voltages are 0V on both sides R7075
I really don't know what i am missing I usually get 5V 0A with dead shorts witch doesn't seem to be the case here.
It may have a bad battery (waiting for a new one tomorrow), but not sure if no battery would cause 0Amp draw...
 
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