820-4924 not turning on no green light no orange light

ielectron

New member
Good morning, We get macbook pro with 820-4924 main board is after liquid damage
after main board cleaning was no green light or any live on MB,
I measure voltages on MB and PP5v_S3 is missing
PPBUS_s5_VS 12v
S5_PWR_EN 0V
SMC_Reset_L 3,3V
SMC_ADAPTER_EN 0V
PPVBAT_G3H_HGR_REG 12,10V
measure on U8030
P3V3 S0_EN 0V
PM_SLP_S3_BUF_L 0V
Measure on U7510
23 12,2V
22 3,3v

Liquid damage was around SMC I reball it. PCB checked underneath all ok pads ok

U8020 was corroded i replaced still no sign of live.
Any idea what I should check, replace next in the row ?
Thanks
 
Top