iClub
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Good afternoon this mac has suffered oxidation in the U4200, U3500, and U3100 regions. I replaced the oxidized components, it worked for a while. The customer returned with the defect of an unexpected shutdown. Now no PPBUS.
I had made a post earlier.
U3200 mode diode/ Voltage
PP1V8_UPC_XB_LDOD 0.487V 1.80v
PP3V3_UPC_XB_LDO 0,507 3,33v
PP1V1_UPC_XB_LDO_BMC 0,520V 0v
PP1V8_UPC_XB_LDOA 0,527V 1,82v
U3100
PP1V8_UPC_XB_LDOD 0,491V 1,82V
PP3V3_UPC_XB_LDO 0,511V 3,33V
PP1V1_UPC_XB_LDO_BMC 0,522V 0V
PP1V8_UPC_XB_LDOA 0,530V 1,79V
UB400
PP1V8_UPC_TB_LDOD 0,487V 1,8V
PP3V3_UPC_TB_LDO 0,512V 3,2V
PP1V1_UPC_TB_LDO_BMC 0,510V 0V
PP1V8_UPC_TB_LDOA 0,527V 1,8v
UB300
PP1V8_UPC_TB_LDOD 0,489V 1,8v
PP3V3_UPC_TB_LDO 0,513V 3,31V
PP1V1_UPC_TB_LDO_BMC 0,522V 0V
PP1V8_UPC_TB_LDOA 0,528V 1,8v
PPBUS 0,123V
PP3V3_G3H 0V
PPVIN_G3H_P3V3G3H 0v
PP20V_USBC 20V only where the charger is connected
I had made a post earlier.
820-00928 error kernel/ sleep
this mac suffered oxidation in the u4200, Q420,U3906 and U3500 region, I replaced the oxidized components, in tests when it enters sleep mode and exits, it shows kernel error.
boards.rossmanngroup.com
U3200 mode diode/ Voltage
PP1V8_UPC_XB_LDOD 0.487V 1.80v
PP3V3_UPC_XB_LDO 0,507 3,33v
PP1V1_UPC_XB_LDO_BMC 0,520V 0v
PP1V8_UPC_XB_LDOA 0,527V 1,82v
U3100
PP1V8_UPC_XB_LDOD 0,491V 1,82V
PP3V3_UPC_XB_LDO 0,511V 3,33V
PP1V1_UPC_XB_LDO_BMC 0,522V 0V
PP1V8_UPC_XB_LDOA 0,530V 1,79V
UB400
PP1V8_UPC_TB_LDOD 0,487V 1,8V
PP3V3_UPC_TB_LDO 0,512V 3,2V
PP1V1_UPC_TB_LDO_BMC 0,510V 0V
PP1V8_UPC_TB_LDOA 0,527V 1,8v
UB300
PP1V8_UPC_TB_LDOD 0,489V 1,8v
PP3V3_UPC_TB_LDO 0,513V 3,31V
PP1V1_UPC_TB_LDO_BMC 0,522V 0V
PP1V8_UPC_TB_LDOA 0,528V 1,8v
PPBUS 0,123V
PP3V3_G3H 0V
PPVIN_G3H_P3V3G3H 0v
PP20V_USBC 20V only where the charger is connected