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Flow Chart of Troubleshooting
7-
24
7
8
8
ANT302
1
1
2
2
3
3
4
4
5
5
6
6
7
3
GND
IN 4
OUT
2
F300
GND
1
C316
+VDD_IO_LOW
BT_1V8
TP316
C322
L301
TP310
TP314
R315
G
N
D
VDD_CORE
36
GND
GND
37
4
U
S
B
_
D
P
5
U
A
R
T
_
R
X
D
6
R
E
Q
_
C
T
R
L
7
E
E
P
R
O
M
_
C
L
K
|C
O
E
X
_
3
8
V
D
D
_
IO
9
ANT
29
GND
3
U
S
B
_
D
N
30
UART_CTS_N
31
PCM_OUT
32
UART_RTS_N
33
PCM_IN
34
UART_TXD
35
T
M
3
_
L
O
W
2
1
V
D
D
_
R
F
2
2
R
E
S
E
T
_
N
2
3
T
X
_
P
U
_
T
D
D
_
N
2
4
G
N
D
2
5
P
C
M
_
S
Y
N
C
2
6
G
N
D
2
7
G
N
D
28
EEPROM_DATA|GPIO_6
14
HOST_WAKE
15
BT_WAKE
16
TM0_HIGH
17
GND
18
GND
1
9
T
M
1
|2
_
H
IG
H
2
V
D
D
_
U
S
B
2
0
U302
1
P
C
M
_
B
C
L
K
10
XTAL_PD|COEX_1
11
USB_DETACH|GPIO_7
12
LPO_IN
13
+VDD_IO_LOW
TP317
R308
BT_1V8
TP308
C315
L302
TP311
TP307
TP313
RESET_BT
CTS2
DD
FSC
RTS2
TXD2
DU
DCL
RXD2
32KHz_DIGIT
BT_HOST_WAKE
BT_EN