820-01521 stuck 5V draw 0,009A

[Dozer]

no DFU mode, was liquid spill, cleaned already



PPBUS_G3H = 12.25V
PP3V3_UPC-XB_LDO = 3.3V
PP1V8_UPC_XB_LDOA = 1.8V
PP1V8_UPC_XB_LDOD = 1.8V
PP1V1_UPC_XB_LDO_BMC = 0V

PP3V3_GrH_RTC = 0V
PPVIN_G3H_P3V3G3HRTC = 12.57V
CHGR_EN_MVR = 0V

desoldered R6960 R6960 pin 1 has in diode mode 0.510

PP3V3_UPC-XA_LDO = 3.3V
PP1V8_UPC_XA_LDOA = 1.8V
PP1V8_UPC_XA_LDOD = 1.8V
PP1V1_UPC_XA_LDO_BMC = 0V

wich signal needs the u7000 to set CHGR_EN_MVR for producing PP3V3_GrH_RTC ?

 

[Dozer]

the liquid damage was on the side of the board near U3100 and u3200 and found some around U2890

 

[Dozer]

PP1V8_SLPS2R 0V that seems to be the problem because I think the I2C between U3200 and U3100 and SMC is not working

ist this sourced from U6960 ? If yes then the again missing the CHGR_EN_MVR

 

[Dozer]

no PP3V3_G3H (0V)
PP5V_G3S 0V PPVIN_G3H_P5VG3S = 12,55 V
PPVIN_G3H_P3V3G3H = 12,56V

 

[Dozer]

found short in PPCHGR_VDDA

 

[Dozer]

replaced u7000
after that all missing power was here again
missing still i2c activity
in thermocam now to see the pmic in one corner getting super hot
replaced the pmic and after all this finaly board is a live

case can be closed