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Flow Chart of Troubleshooting and Circuit Diagrams
3-17
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R439
C444
C454
R433
C432
C450
C434
C455
C433
C451
C443
R434
L400
R435
R438
VBAT
C448
C435
R440
VSS
8
VDD
9
25
GND
NC
26
27
NC
VDD
3
VOMR
4
VSS
5
VOPR
6
VDD
7
VOPL
18
VDD
19
VSS
2
VSS
20
VDD
21
VIML
22
VREFL
23
VIPL
24
VIMR
10
VREFR
11
VIPR
12
EN_R
13
VSS
14
VDD
15
VOML
16
VSS
17
U401
EN_L
1
40
4
L
L403
C445
C452
L402
TA402
R437
L401
C447
C449
WM_SP
WM_SN
AMP_EN
SPK_R+
SPK_R-
AMP_IN_N
SPK_L+
SPK_L-
AMP_IN_P
VCCD_2.9V
8
IN2
5 NC1
7
NC2
2 NO1
10
NO2
1 V+
COM1
3
COM2 9
GND 6
GND
11
4 IN1
U403
R428
WM_SN
AOUTBN
AOUT_SW_N
WM_SP
AOUTBP
AOUT_SW_P
ASW_SPEAKER