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Flow Chart of Troubleshooting
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9-11
R404
R400
C407
MIC400
C405
C401
R403
MIC_BIAS
V400
V401
C402
C403
C406
R401
R402
TA400
C404
C400
MIC_N
MIC_P
R508
V505
R503
V506
R510
C502
C
50
6
R504
R509
R513
L500
9 9
21 NC
NC
22
NC
23
24 NC
NC
25
26 NC
27 NC
2
2
20
20
3 3
4
4
5 5
6
6
7
7
8
8
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
IFC500
1
1
10
10
11
11
V501
VBAT_AUDIO_3.8V
R502
V503
R506
10
V
C
C
1
R500
3
COM2
9
G
N
D
6
IN1
4
IN2
8
5
NC1
7
N
C
N
O
1
2
NO2
U500
COM1
L501
R512
C
50
9
C501
R
50
7
TA500
C
50
8
V504
V502
R505
R
51
6
VBAT
C500
R
51
5
VCHG_5V
R511
C
50
7
V507
R514
C505
R
50
1
V500
C510
C503
C504
JIG_ON
UART1_RD_J
UART1_TD_J
AUX_DET
UART1_RTS
UART1_CTS
EARN_RTS
EAR_N
EAR_SW_REF
UART1_TD
UART1_RD
EARP_CTS
EAR_SW
EAR_MIC_N
EAR_MIC_P
EARP_CTS
EARN_RTS
UART_SW
EAR_P