820-2879-b green light but not start

hello,
i need help for mainboard after liquidamage
i have clean and works 2 weeks
after 2 weeks doesn't start
for value, i have
PP3V42_G3H : 1.18V
PPBUS_G3H : 0.6V
PPDCIN_G3H_CHGR / 18.5v

thanks for help
 

2informaticos

Administrator
Staff member
You still have corroded components, or traces.
Start checking R7021/2 and R7051/2; also R7080/1 and R7085/6.

Post U7000 basic voltages; pins 1, 2, 3, 9, 12, 13, 14, 15, 17, 19, 20, 27.
Also U6990; 6, 8, 2, 4, 1, 3.

Just in case, check diode mode to ground at PPBUS_G3H and 3V42_G3H.
 
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