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Flow Chart of Troubleshooting
2-17
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R424
R426
C462
39pF
R425
10K,1%
C459
VBAT
NC
7
2
NO1
10
2
O
N
1
VCC
U405
3
1
M
O
C
9
2
M
O
C
6
GND
4
1
NI
8
2
NI
1
C
N
5
C460
C461
39pF
TA405
SPK-
SPK+
AMP-
AMP+
AMP_EN
AOUT_A_P
AOUT_A_N