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8-3-2. Charging Part
Initial Failure
The first Pin of IFC200 is 5V?
ZD200,C156 or C200 = 5V ?
ZD200,C156 or C200 = 5V ?
VBAT_SENSE
VCHG_P_5P0
VBUS_5P0
1
VIN
2
ISET
3
GND
4
LDO
5
IEOC
R138
R137
CHARGER
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Yes
Yes
Yes
Yes
END
VDDIO_2V8
VBAT
R134
U102
10
BATT
9
PGB
CHG_DET
8
CHGSB
CHG_STATE
7
GND
6
EN|SET
CHG_E
No
Resolder or Replace IFC200
No
Resolder ZD200,C156
No
Resolder or Replace U102
VCHG_P_5P0
IFC200
1
1
2
R200
2
3
R201
3
4
4
5
5
6
S1
7
S2
8
NC
9
NC
ZD200
10
C200
NC
11
NC
12
NC
13
NC
R207
C202
R208
MicroUSB I/F
8-7
Level 3 Repair
Must be 5V
R203
R204
R205
R206
U201
1
IN
4
OUT
3
EN
C203
C204
USB_D_N
USB_D_P
JIG_ON
USB_ID_JTA
UART1_TD
VBAT
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