820-01958 water damage 5v

yair37

Member
water damage at usb u3200/100 area and near U9060.
PPBUS_G3H 12.2V
PPDCIN 5.2V
L6960 0V both sides..
PP5V_G3S 0V
PP3V3_G3H 0.1V
dont see any short
 

2informaticos

Administrator
Staff member
Just in case, before replacing U7000, check its basic voltages: P_IN, AUX_DET, VDDA/P, SMC_RST_IN, A/BMON.
 

yair37

Member
P_IN 0.1v
AUX_DET 0v
VDDA/P 5.1V
PPDCIN_G3H_CHRG_AMON 5.1V
didnt find SMC_RST_IN but maybe is CHRG_RST_IN 0V
 

2informaticos

Administrator
Staff member
"P_IN 0.1v"
Why changed it, if is not even powered up?

R7020 is broken, or it doesn't get DCIN_G3H at all?

"didnt find SMC_RST_IN but maybe is CHRG_RST_IN"
Correct guess; but strange mention, as you already found other internal U7000 signals, above mentioned.
 

2informaticos

Administrator
Staff member
Check diode mode to ground at CHGR_EN_MVR.
If still missing, change U6903; it may kill the signal because of internal failure.
 
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