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Removed U9080 and still 0.030 on PPBUS_G3H_SSD0_SNS
Removed R5620 and i get 0.03 on PPBUS_G3H and 0l on PPBUS_G3H_SSD0_SNS
Removed F7000/F7001, the issue is on the side of generation
820-01041 with tiny bit of corrosion on C9081.
I thought it was the usual shorted C9081 but diode mode on PPBUS_G3H_SSD0_SNS is giving me 0.036 and resistance to ground is 80ohms
But after removing C9081 i still get 0.0036 diode mode on PPBUS_G3H_SSD0_SNS.
U9080 culprit?
820-3476 that originally had green light and 3.4v on PP3V42_G3H but 0v on PPBUS_G3H.
I determined L7130 to be faulty. After replacing L713 i get 12.55v on PPBUS_G3H but pulses down to 12.00v and still no boot.
With battery only PPBUS_G3 is stable at 11.84v but still no boot. Battery +...
820-3662 with tons of corrosion. It has no green light and no fan spin.
PP20V_DCIN_FUSE is 3.1v (using OEM known working 85w charger)
Replaced Q7180 and D7010, no change.
Diode mode on PPBUS_G3H is 0.400 and PP3V42_G3H is 0.275
It was the ISL, even though it was drawing almost 1 amp at 4v it wasnt generating noticeable heat. I removed it just in case and the short was gone.
Thanks a lot.
Sorry, i had an error in the tittle. It recognizes the charger all right. The battery is whats not recognized.
Diode modes:
SCL: 0.00
SDA: 453
SMBUS_SMC_5_G3_SCL is shorted. I removed D7050 but no chanage. Could it be shorted under J7050?
It turns on and it will load the bar to 100% but it wont go into the OS. Sometimes it turns on keyboard backlight and caps light, but no login screen. (tried several SSD´s)
Tried with everything disconnected, no change.
It wont load MacOS install USB neither.
NVRAM and SMC reset do nothing...
I measured every line in U7000 in diode mode but its the same as good board. Replaced both Q7030/40 just in case but still nothing. Could it be the SMC?.
Here are the diode mode measurements:
Good
Bad
TBA_GATE_Q4
0.686
0.714
TBA_VDDA
0.405
0.398
PPVBAT_G3H_CHGR_REG
0.384
0.38...