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TA_VEXT
USB_VCC
CHG_DET
CHRG_COMPLETE
CHG_ON
R411
EAR_SW
JACK_IN
BOOT_SW
IF2
RXD_1
JIG_ON_IF
D+
D-
USB_VCC
TA_VEXT
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U404
1
CRDL
2
USB
3 _PPR
4
USBON 7
_CHG
5
_EN
GND
11
MIC2P
C404
MIC2N
C407
C408
EAR_R
EAR_L
V402
V_2.6P
R412
R410
Flow Chart of Troubleshooting and Circuit Diagrams
VBAT
BAT 10
9
ICDL
GND 8
6
IMIN
V_MIC_2.85V
R400
R402
C400
C401
C409
V400
V401
R405
R407
V403
R408
R413
R414
R415
R417
R418
3-11
ICHRG
R425
USB_VCC
IFCN400
VBAT
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15 15
16
16
17 17
18
18
19 19
20
20
21 NC
22
NC
23
NC
24 NC
C422
JIG_ON_IF_T
TXD_T
RXD_T
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