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Flow Chart of Troubleshooting
10-24
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7
9
1
C
L124
R138
4
9
1
C
VCC_3.0V
8
9
1
C
R124
5
W
_
D
8
.
1
D
D
V
0
5
C
N
1
5
C
N
6
GPIO0
PIO2
7
8
PIO3
9
PIO0
2
4
W
_
O
I
D
D
V
3
4
W
_
3
.
3
D
D
V
4
4
W
_
3
.
3
D
D
V
45
SLEEP_CLK_W
46
GPIO1
47
RESET_N_W
PDN
48
9
4
C
N
5
3
36
SD_D3
37
SD_D2
38
SD_D1
39
SD_D0
4
W
_
A
8
.
1
D
D
V
SD_CMD
40
41
SD_CLK
XTAL_OUT_B
29
XTAL_IN_B
3
P
_
L
E
S
T
N
A
30
XTAL_IN_W
31
XTAL_OUT_W
32
GPIO5
33
GPIO6
34
TDO
D
N
G
PCM_CLK
21
UART_TX
22
UART_CTS
23
UART_RX
24
UART_RTS
5
2
D
N
G
6
2
B
_
O
I
D
D
V
7
2
B
_
3
.
3
D
D
V
28
3
1
D
N
G
14
PIO4
15
PIO1
16
RST_N_B
17
PCM_OUT
18
PCM_SYNC
19
PCM_IN
2
N
_
L
E
S
T
N
A
20
MOD100
1
D
N
G
0
1
T
B
_
T
N
A
1
1
D
N
G
2
1
T
B
|
N
A
L
W
_
T
N
A
VCC_3.0V
R123
6
9
1
C
VCOMBO_1.8V
VCOMBO_3.3V
R129
R127
VCOMBO_1.8V
5
9
1
C
0
0
1
A
T
R139
R137
VCOMBO_3.3V
WLAN_SPI_TXD
WLAN_SPI_nINT
WLAN_SPI_RXD
WLAN_SPI_nCS
WLAN_SPI_CLK
XTAL_OUT_W
XTAL_OUT_B
WLAN_nRST
BT_RTS
BT_CTS
BT_nRST
WLAN_PDN
COMBO_ANT
BT_TXD
BT_RXD
BT_PCM_CLK
BT_PCM_SYNC
BT_PCM_IN
BT_PCM_OUT
XTAL_IN_B
XTAL_IN_W