820-00165 no turning on..

yair37

Member
green/orange..
U1950
just pin 1(PP3V42_G3H) get 3.4v all the rest 0v
was replaced U1950 but the same.. all around look good and no shorts..
also "shake" SMC but still the same.
any idea?
 

2informaticos

Administrator
Staff member
What is exact PPBUS_G3H voltage (no battery)?
What was the problem of low resistance to ground?
Do you get 3V3_SUS?
 

2informaticos

Administrator
Staff member
I'm pretty sure you don't have 8V there.
I asked about EXACT voltage; don't you have 3 digits voltmeter?
It is probably good, if you get 3V3_SUS, but PLEASE post accurate information.

Trigger SMC_ONOFF_L and check for drop pulse at PM_PWRBTN_L (at same time).
 

2informaticos

Administrator
Staff member
"PM_SLP_S4_L 0.4v no short"
Not sure what this means?
Can you detect a pulse there, when trigger SMC_ONOFF_L?
 
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