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Flow Chart of Troubleshooting
9-25
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R210
R211
T
P
_C
S
SHORT
R209
C227
R208
VDDE_1V8
WIFI_1.2V
T
P
_M
IS
O
VDDE_1V8
100K
0603
VDDE_1V8
VDDE_1V8
R207
C236
C226
T
P
_M
O
S
I
TP_COEX200
T
P
_R
T
C
VDDE_1V8
T
P
_C
O
E
X
20
2
C241
C253
C238
C237
T
P
_L
P
_C
L
K
T
P
_C
O
E
X
20
1
C250
3
3
T
P
_H
F
C
_E
N
ANT200
1
1
2
2
9
T
P
_I
R
Q
52
G
N
D
53
G
N
D
54
G
N
D
55
G
N
D
56
BT_CLK
6
VDD_2V75
7
VSS_BT_RF
8
HOST_WAKEUP_SPI_INI
45
S
D
_D
3
46
S
D
_D
2_
R
T
S
47
S
D
_D
1_
C
T
S
48
S
D
_C
L
K
49
BT_VDD_CLD
5
S
D
_D
0_
R
X
D
50
G
P
IO
0|
S
L
E
E
P
_I
N
51
U
A
R
T
_R
X
D
_S
P
I_
D
I
38
H
F
C
_E
N
39
UART_RTS_SPI_CSN
4
D
V
D
D
40
V
D
D
_M
A
C
_8
6
41
V
D
D
_I
O
42
H
O
S
T
_W
A
K
E
U
P
43
V
D
D
_S
D
IO
44
S
D
_C
M
D
_T
X
D
30
EXT_PWR_EN
31
VBAT_32K
32
VBAT_P
33
40MHZ_IN
34
40MHZ_OUT
35
DCDC_EN
36
DCO
37
L
P
_C
L
K
23
S
P
I_
E
N
0
24
S
H
U
T
D
O
W
N
25
R
E
S
E
T
N
26
VCC
27
VCC_REG_VCO
28
VCC_REG_PLL
29
UART_TXD_SPI_DO
3
VDD_CLK_26
16
C
O
E
X
2
17
C
O
E
X
1
18
P
C
M
_B
19
VDD_1V8
2
P
C
M
_A
20
P
C
M
_C
L
K
21
P
C
M
_S
Y
N
C
22
V
P
A
UART_CTS_SPI_CLK
1
BT_CLK_REQ_OUT1
10
BT_CONFIG2
11
C
O
E
X
0
12
B
T
_R
E
S
E
T
N
13
B
T
_C
O
N
F
IG
1_
3
14
B
T
_C
L
K
_R
E
Q
_O
U
T
_2
15
A
N
T
T
P
_C
L
K
VBT_2V75
U201
WIFI_3.3V
C228
C235
W
L
A
N
_
A
C
C
_S
P
I_
IR
Q
A
C
C
_S
P
I_
C
L
K
A
C
C
_S
P
I_
M
IS
O
R
T
C
C
L
K
A
C
C
_S
P
I_
M
O
S
I
ACC_SPI_CLK
ACC_SPI_MISO
BT_ACC_SPI_CSn
BT_ACC_SPI_IRQ
BT_CLK
B
T
_
R
S
T
B
T
_C
L
K
R
E
Q
A
C
C
_
P
C
M
_U
L
D
A
C
C
_P
C
M
_D
L
D
A
C
C
_
P
C
M
_C
L
K
A
C
C
_P
C
M
_S
Y
N
C
W
IF
I_
P
W
R
_
E
N
W
L
A
N
_
R
E
S
E
T
A
C
C
_S
P
I_
M
O
S
I
W
L
A
N
_
A
C
C
_S
P
I_
C
S
C
12
5
C
12
6
C1
30
C132
C
22
6
C227
C22
8
C232
C2
33
C
23
4
C
2
35
7
3
2
C
6
3
2
C
C
23
8
C23
9
C24
0
C241
C242
C
24
4
C245
C246
C248
C24
9
C250
C251
C252
C
2
53
C
2
55
C711
C71
3
C714
C807
C8
08
L
10
8
L2
05
L80
2
O
S
C
2
00
R20
7
R
20
8
R
20
9
R
21
1
R
30
7
R5
04
R80
2
R8
05
T
P
_C
L
K
T
P
_C
O
E
X
20
0
T
P
_C
O
E
X
20
1
T
P
_C
O
E
X
20
2
T
P
_
C
S
T
P
_H
F
C
_E
N
T
P
_IR
Q
T
P
_L
P
_C
LK
I
S
O
M
_
P
T
O
SI
M
_
P
T
T
P
_
R
T
C
U
20
1
S
W
B
-N
12
S
W
B
-N
12
U20
2
U
20
3
Z
D
80
1