820-00164 not turning on

Kyle93

Member
Have a 820-00164 that has no power and no light on charger. No liquid damage. PPDCIN_G3H is 18V but PPDCIN_ISOL IS 0V

Have no shorts and already replaced q7010 with no luck.

What to check next?
 

JohnB8812

New member
Any voltage out of Q7010 on pin 1? Something that very commonly happens on these newer Airs is that D7012 fails and prevents voltage from passing through Q7010. I'd replace it first
 

JohnB8812

New member
R7010/11 ok? There's not much else here that can cause that unless DCIN_ISOL is shorted. Another thing that can happen is broken trace between D7012 and R7010. Also bad Q7010 is possible.
 
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