help with an acer la-j871p

kjchatman

Member
i'm rather new to repairing non-apple motherboards. this boards has a problem with +3valp. I was getting a low resistance to ground on the rail and i injected 1v. the pch got warm so removed it. the short seemed to be gone but when it comes back when the charger is connected. i'm getting 5v on +5valp
 

2informaticos

Administrator
Staff member
"the short seemed to be gone but when it comes back when the charger is connected"
Do you measure diode mode (or ohm scale) with power applied???
I hope not.

Always allow 10-15s before such measurements, after power is removed (both charger and battery).
This way discharge remanent voltages on the board.
 
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