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Flow Chart of Troubleshooting
9-9
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C432
C410
C406
C434
C408
C435
R431
R409
17
21
NC
NC
22
+
V
14
9
4S1
11
2
S
4
13
16
1
D
D2
4
8
3
D
12
D4
D
N
G
6
D
N
G
1-2IN
2
1
S
1
15
1S2
1
3
2S1
2
S
2
5
10
3-4IN
7
1
S
3
3S2
U401
C437
C407
VBAT
C433
C409
R410
C436
C411
MELODY-
AUDIO_OUT_SEL
AOUTBP
AOUTBN
AMP_IN-
MP3_SPK-
SPK_SEL
YMU+
YMU-
AOUTAN
AOUTAP
SPK+
SPK-
R321
C342
C335
VIM
C1
A1
VIP
VOM A3
C3
VOP
A2
VSS
U303
N
E
2
C
C
N
1
C
N
2
D
D
V
P
2
B
B3
PVSS
VDD
B1
R331
R330
L302
VBAT
C343
TA304
R322
R320
R319
TA305
R328
L300
C334
L301
R329
MELODY-
AMP_IN-
AMP_EN