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Flow Chart of Troubleshooting
10-9
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C456
C455
8
5
10
COM1
COM2
6
GND
3
NC
9
7
NC
2
NO1
4
NO2
VCC
U407
CB1
1
CB2
VAUDIO_3.3V_A
R435
SPKL
SPK_SW
RCV_P
SPKR
CODEC_OUT_R
SPK_SW
RCV_N
CODEC_OUT_L
9
2
4
C
6
ZD402
1
2
3
4
5
VAUDIO_3.3V_A
5
6
4
C
0
0
4
A
T
C422
C402
C405
4
IO3
IO4
5
6
IO5
C424
ZD406
2
GND
IO1
1
IO2
3
8
6
4
C
6
6
4
C
C403
C428
TA403
C417
TA405
C425
VMICBIAS_2.7V
7
6
4
C
C401
VCODEC_2.0V
VAUDIO_3.0V
5
1
4
R
4
1
4
R
VAUDIO_3.3V_A
R412
C407
TA401
VAUDIO_3.0V
C427
9
6
4
C
R411
0
0
4
C
OSC400
GND
2
3
OUT
4
VDD
1
_ST
C416
R410
8
0
4
C
R409
TA402
VAUDIO_3.3V_A
5
1
Y+
7
1
Y-
6
0
4
C
8
3
SPKVDD
0
1
C
N
Y
S
8
1
TPGND
3
1
TPVDD
7
2
F
E
R
V
2
1
4
X
U
A/
R
E
PI
W
4
1
X+
6
1
X-
3
3
4
T
U
O
9
1
PCBEEP
1
1
7
OI
P
G/
B
T
E
S
E
R
8
NI
A
T
A
D
S
5
T
U
O
A
T
A
D
S
4
3
D
N
G
K
P
S
5
3
L
K
P
S
6
3
R
K
P
S
0
3
2
X
U
A/
2
P
M
O
C/
B
2
CI
M
8
2
S
AI
B
CI
M
2
2
MICOM
1
3
O
N
O
M
0
2
MONOIN
0
5 NC
1
5 NC
7
3
OUT3
1
4
HPR
HPVDD
3
4
3
2
LINEL
4
2
LINER
2
A
K
L
C
M
3
B
K
L
C
M
1
2
MIC1
9
2
1
X
U
A/
1
P
M
O
C/
A
2
CI
M
GND
4
4
9
4
GPIO1/PCMCLK
5
4
GPIO2/IRQ
6
4
GPIO3/PENDOWN/PCMFS
7
4
GPIO4/ADA/MASK/PCMDAC
8
4
GPIO5/SPDIF/PCMADC
0
4
HPGND
9
3
HPL
2
4
AGND2
5
2
D
D
V
A
6
K
L
C
TI
B
2
3
2
P
A
C
1
D
D
V
B
D
9
D
D
V
C
D
4
1
D
N
G
D
7
2
D
N
G
D
UCD402
6
2
D
N
G
A
K
L
C
TI
B
TSPX
TSPY
TSMX
TSMY
CODECCLK_EN
D
N
G
_
C
C
V
_
J
O
RADIO_L
RADIO_R
MSM_SPK_N
P
_
CI
M
_
M
S
M
EARCOM
T
U
O
_
A
T
A
D
S
C
N
Y
S
SPKL
SPKR
BT_PCM_SYNC
T
S
R
_
7
9
C
A
n
BT_PCM_CLK
BT_PCM_OUT
BT_PCM_IN
EAROUT_L
EAROUT_R
SPK_SW
MSM_SPK_P
MSM_MIC_N
MIC_P
MIC_N
NI
_
A
T
A
D
S