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820-00281-A A1707
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Post U7000 basic voltages; P_IN, AUX_DET, VDDA/P, EN_VR1, SMC_RST*, AUX_OK, A/BMON.
Check diode mode to ground at PPBUS_G3H and all big coils.
SMC_USBC_INT_L goes high?
Test with known good battery (charged).
Also be sure to use 87W charger.
Check diode mode to ground at PPBUS_G3H and all big coils.
SMC_USBC_INT_L goes high?
Test with known good battery (charged).
Also be sure to use 87W charger.
P_IN = 5.1 Volt
AUX_DET = 1.2 Volt
VDDA = 5Volt
VDDAp = 5 Volt
EN_VR1 (R6921) = 5 Volt
SMC_RST = 3.4 Volt
AUX_OK (Q5490 pin2) = 3.4 Volt
(D4)AMON CHGR_AMON = 3.4 Volt
BMON CHGR_BMON = No Voltage
R3038 SMC_USBC_INT_L = No Voltage
big coils are not short circuited
diode mode PPBUS_G3H = 0.406
AUX_DET = 1.2 Volt
VDDA = 5Volt
VDDAp = 5 Volt
EN_VR1 (R6921) = 5 Volt
SMC_RST = 3.4 Volt
AUX_OK (Q5490 pin2) = 3.4 Volt
(D4)AMON CHGR_AMON = 3.4 Volt
BMON CHGR_BMON = No Voltage
R3038 SMC_USBC_INT_L = No Voltage
big coils are not short circuited
diode mode PPBUS_G3H = 0.406
"CHGR_AMON = 3.4 Volt"
Check R7021/22 and their traces.
Check R7021/22 and their traces.
I told you to check these resistors based on your bad reading.
No need to check them in fact.
Please, post accurate information in the future...
One of CD3215 may be bad, or SMC has internal damage.
Be sure first that R3038 is good.
SMC_USBC_INT_L must stay high.
"Test with known good battery (charged).
Also be sure to use 87W charger."
???
No need to check them in fact.
Please, post accurate information in the future...
One of CD3215 may be bad, or SMC has internal damage.
Be sure first that R3038 is good.
SMC_USBC_INT_L must stay high.
"Test with known good battery (charged).
Also be sure to use 87W charger."
???
I checked again this morning and saw 20 volts instead of 5 volts on the keweısı. But the amperage drawn is 0 when I first plug it in, it draws 0.17a and then it drops to zero.
No original charger. I tried it with its own battery, it didn't charge. The charger I am using now creates all voltages on the same model motherboard.
SMC_USBC_INT_L = No voltage
R3038 good
PPDCIN_G3H_CHGR : 19v
No original charger. I tried it with its own battery, it didn't charge. The charger I am using now creates all voltages on the same model motherboard.
SMC_USBC_INT_L = No voltage
R3038 good
PPDCIN_G3H_CHGR : 19v
Then you have problems on USB_C area of JB500.
Compare diode mode readings on CD3215 LDOs between both sides.
I also recommend to check on all JB500 lines.
BTW, get original set of 87-96-140W chargers for repair processes.
Compare diode mode readings on CD3215 LDOs between both sides.
I also recommend to check on all JB500 lines.
BTW, get original set of 87-96-140W chargers for repair processes.
Not only short is bad.
You must compare the readings with good channel.
Also check if all LDOs come on on that area.
You must compare the readings with good channel.
Also check if all LDOs come on on that area.
You can try to reflash UB090.
Don't forget to make a backup first.
Don't forget to make a backup first.
Write in english for example...