820-3435 not turn on

[geo8610]

board not turn on, orange light

history available
corrotion pin 17,18,19 of u7200; I have not solved this yet, I don't know if it has to do with the problem that other sources do not turn on

PP3V3_SUS=3.3v
PP3V3_S5_REG_R=3.3v
PP5V_S4RS3=0v
SMC_RESET_L=3.3v
PPBUS_G3H=8.6

 

[2informaticos]

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