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Flow Chart of Troubleshooting
10-12
C503
OUT4
GND
IN1
1
2 IN2
IN3
3
4 IN4
OUT1
5
6
OUT2
OUT3
7
8
F500
GND
9
10
D507
VBAT
VDD_USB_3.3V
R502
C501
R508
D505
1
2
34
5
6
L501
L500
C500
V_EXT_CHARGE
C502
R506
VDD_IO_HIGH_2.9V
TP500
R507
R503
D506
R501
NC 23
24
NC
NC 25
26
NC
27
NC
4
4
5
5
6
6
7
7
8
8
9
9
21
NC
NC 22
15
15
16 16
17
17
18 18
19
19
2
2
20 20
3
3
1
1
10
10
11
11
12
12
13 13
14 14
IFC500
J
_
V
5
_
S
U
B
V
USB_DP
EAR_SWITCH
JACK_IN
EARSPK_R
J
_
1
D
X
R
J
_
N
O
_
X
U
A
FM_RADIO_ANT
J
_
P
D
_
B
S
U
J
_
M
D
_
B
S
U
EARMIC_P
EARMIC_N
EARSPK_L
USB_DM
VBUS_5V
AUX_ON
TXD1
RXD1
J
_
1
D
X
T
C415
C401
C421
RXIN-
D4
OUT-
D5
INB2
C1
INB1
C2
SCL
C3
D
N
G
P
4
C
D
D
V
P
5
C
INA2
D1
INA1
D2
D
N
G
3
D
S
S
V
3
A
C1N
A4
C1P
A5
D
D
V
1
B
BIAS
B2
SDA
B3
RXIN+
B4
OUT+
B5
U401
C
N
1
C
N
2
HPR
A1
HPL
A2
C402
C406
C407
R402
R401
C452
C451
VBAT
C408
TA400
C417
C416
SCL
SPK_N
HFR1
HFR2
EARSPK_L
EARSPK_R
EAR1
EAR2
SDA
SPK_P