User Guide

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Flow Chart of Troubleshooting
7-12
R214 1K
14
D1
16
D2
4
D3
8
D4
12
6
GND
17
GND
21
NC NC
22
V+
1
1S2 2S1
3
5
2S2
3-4I
N
10
3S1
7
9
3S2
11
4S1
13
4S2
U202
STG3699
2
1-2I
N
15
1S1
SPVDD
C231
100NF
REC_P
AUDIO_SW1
SPK_N
REC_N
SPK_P
AMP_N
AUDIO_SW2
AMP_P
R321
51 K
1N F
C313
27PF
C309
VDD3
C315
47N F
100NF
C30 8
C319
22NF
33 0
R32 2
VDD3
C317
100NF
R32 3
51 K
4.7K,1%
R327
100N F
C314
C318
1.2N F
3.3K
R326
R328
33K
VBAT
TC7SH04FU-TE85L
3
GN D
IN
2
NC
1
OU T
4
VCC
5
U303
VDD3
C307
100P F
22K,1% R324
9
VRE F
VS S
8
/C
S
29
3
/IR Q
/R
D
31
/RST
4
28
/W
R
19
MT R
5
NC
PLLC
6
17
SPOUT1
SPOUT2
18
15
SPVD
D
SPVS
S
16
7
VD D
33
G G
34
35
G G
36
HPOUT-L/MONO
10 11
HPOUT-R
IOVDD
32
LED
2
23
D4
D5
22
21
D6
D7
20
EQ
1
12 13
EQ
2
EQ
3
14
30
A0
1
CLKI
D0
27 26
D1
25
D2
D3
24
VDD3
U304
YMU765
VDD3
C312
100N F
6.3V
33UF
C316
R32 9
15K,1%
HD(7)
HD(6)
HD(5)
HD(4)
HD(3)
HD(2)
HD(1)
HD(0)
HA(1 )
AMP_ P
AMP_ N
HWR_ N
HRD_ N
M_IR Q
MELODY_C S
VI B
MELODY_CLK
LINE_OUT