NeverStopLearning
Member
A1932 Macbook Air with water damage to the Audio board area.
Audio board was completely damaged therefore was replaced with a new one, macbook also had some water damage on the battery connector and nearby area but battery is fine and not shorts on capacitor C8469) or diode (D8410)
USB Meter shows 5.2V and 0.21Amps on PP20V_USBC_XA_VBUS (Current drops zero and loops)
USB Meter shows 5.2V and 0.21Amps on PP20V_USBC_XA_VBUS (Current drops zero and loops)
Voltages
PP20V_USBC_XA_VBUS = 5v
PP20V_USBC_XB_VBUS = 5v
PP20V_USBC_XB_V = 5v
PP3V3_G3H_RTC = 3.2v
CHGR_EN_MVR = 5V
PPBUS_G3H = 12.31v
No Short on F3000 or F3010 or F7000
Q7065 Voltages
Source Pin 1,2,3 = 12.32v
Gate Pin 4 = 12.31v
Drain Pin 5,6,7,8 = 0.22v
Voltages at Fuse F7000 (On Charger going through Q7065)
Pin 1 = 0.22 (PPVBAT_G3H_CONN)
Pin 2 =0.22 (PPVBAT_G3H_CONN)
Voltages at Fuse F7000 (on Battery)
Pin 1 =1.31
Pin 2 =1.21
Coils
No short to ground on any coils
5VPWM = 0.01v
3VPWM = 3.24v
Up and Down inductor = 5.1
I assume PPBUS_G3H needs to be created first at a voltage of 12.6 - 1305 volts before the CD32 work? or do I have an issue with the U7000 ISL9240HI? Could the Audio Board water damaged caused damaged to the main board and if so what area (T2 Chip?)
Diode Mode to ground
Pin 32 = OL
Pin 33 = 0.99KOhms
Audio board was completely damaged therefore was replaced with a new one, macbook also had some water damage on the battery connector and nearby area but battery is fine and not shorts on capacitor C8469) or diode (D8410)
USB Meter shows 5.2V and 0.21Amps on PP20V_USBC_XA_VBUS (Current drops zero and loops)
USB Meter shows 5.2V and 0.21Amps on PP20V_USBC_XA_VBUS (Current drops zero and loops)
Voltages
PP20V_USBC_XA_VBUS = 5v
PP20V_USBC_XB_VBUS = 5v
PP20V_USBC_XB_V = 5v
PP3V3_G3H_RTC = 3.2v
CHGR_EN_MVR = 5V
PPBUS_G3H = 12.31v
No Short on F3000 or F3010 or F7000
Q7065 Voltages
Source Pin 1,2,3 = 12.32v
Gate Pin 4 = 12.31v
Drain Pin 5,6,7,8 = 0.22v
Voltages at Fuse F7000 (On Charger going through Q7065)
Pin 1 = 0.22 (PPVBAT_G3H_CONN)
Pin 2 =0.22 (PPVBAT_G3H_CONN)
Voltages at Fuse F7000 (on Battery)
Pin 1 =1.31
Pin 2 =1.21
Coils
No short to ground on any coils
5VPWM = 0.01v
3VPWM = 3.24v
Up and Down inductor = 5.1
I assume PPBUS_G3H needs to be created first at a voltage of 12.6 - 1305 volts before the CD32 work? or do I have an issue with the U7000 ISL9240HI? Could the Audio Board water damaged caused damaged to the main board and if so what area (T2 Chip?)
Diode Mode to ground
Pin 32 = OL
Pin 33 = 0.99KOhms