not turn on 820-00164

[geo8610]

hello this board not green light,not turn on this measure, test good i/o board.

PPVRTC_G3H=3.4
PPBUS_G3H=8.19
PP3V42_G3H=3.4
PP3V3_S5_REG_R=0v
SMC_RESET_L=3.4v
SMBUS_SMC_5_G3_SDA=3.4
SMBUS_SMC_5_G3_SCL=3.4
mode diode SDA =0.545
SCL=0.553

macbook is that it came with a generic charger

 

[2informaticos]

Any history available?

Post U5000 (2 OF 2) signals and voltages (page 37).

 

[geo8610]

no story,

SMC_TCK=3.4
SMC_TMS=3.4
SMC_TDO=3.4
SMC_TDI=3.4
PP3V3_S5_AVREF_SMC=0v
PP1V2_S5_SMC_VDDC=0v
SMC_EXTAL=0v
SMC_XTAL=0.85 a veces varia de valor
SMC_CLK32K=0v
SMC_WAKE_L=3.1
WIFI_EVENT_L=0.27
GND_SMC_AVSS=0v

 

[2informaticos]

"PP3V3_S5_AVREF_SMC=0v"
First, check diode mode to ground.
If short, C5021/25 are first suspects; check the other caps too, if needed.
May have bad SMC, or U5110.