arnonabuurs
New member
Hi guys, I have an 820-3738 that someone else tried to ?fix? before. No light on charger and no PPBUS. I found D7105 missing and after I put it back I get following measurements:
PP3V42_G3H = 3.43v
PPBUS_G3H = 12.27
PPVRTC_G3H = 3.3v
SMC_RESET_L = 3.3v
Still no light on the charger, so I assumed maybe SMC issue due to low PPBUS, clearly it has been worked on as it has no glue around it. I do measure 3.43 on SMC_PM_G2_EN if im correct this is a signal the SMC sends out? Suggestions? Change SMC or something else I need to check first?
Edit: One wire circuit seems OK, i get 3.12v on Pin 4 & 5 from U7000 not sure what it supposed to be here. And 3.28 on SMC_BC_ACOK. 3.4v on Pin 5 of U7001
PP3V42_G3H = 3.43v
PPBUS_G3H = 12.27
PPVRTC_G3H = 3.3v
SMC_RESET_L = 3.3v
Still no light on the charger, so I assumed maybe SMC issue due to low PPBUS, clearly it has been worked on as it has no glue around it. I do measure 3.43 on SMC_PM_G2_EN if im correct this is a signal the SMC sends out? Suggestions? Change SMC or something else I need to check first?
Edit: One wire circuit seems OK, i get 3.12v on Pin 4 & 5 from U7000 not sure what it supposed to be here. And 3.28 on SMC_BC_ACOK. 3.4v on Pin 5 of U7001
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