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SGH-S400i Flow Chart of Troubleshooting
2-
15
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VAUDIO_3.3V
R362
C399
5
8
N/C
N/C 7
VIN
1
10
VOUT1
VOUT2 9
3
6
GND
D
N
G
1112
D
N
G
D
N
G
1314
D
N
G
D
N
G
1516
D
N
G
N/C
U310
4 CBYP
2 EN1
EN2
BT_1.8V
R361
VBAT
C375
C378
C374
DACPW_ON
VBT_EN
C169
1
3
2
ANT101
BT_1.8V
C170
R140
7
PIO_4_UART_TX2
8
RESETB
9
PCM_OUT
23
GND
24
GND
25
PIO_1
26
UART_CTS
3
PIO_2
4
PIO_3
5
GND
6
PIO_5_UART_RTS2
16
PCM_CLK
17
UART_RX
18
VDD_REG
19
GND
2
UART_TX
20
PCM_SYNC
21
VDD_1.8V
22
ANT
1
PIO_0
10
PIO_6_UART_CTS2
11
VDD_UART
12
GND
13
PCM_IN
14
UART_RTS
15
PIO_7_UART_RX2
U103
C153
R145
PCM_OUT
PCM_IN
PCM_SYNC
PCM_CLK
BT_TXD
BT_RXD
BT_RTS
BT_CTS