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Flow Chart of Troubleshooting
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7-13
D_Class_AMP
typical 3.8V
C552
C559
VBAT
TA557
C553
C550
C551
6
VOPR
7
VDD
8
VSS
9
VDD
23
VREFL
24
VIPL
GND
25
26
NC
NC
27
3
VDD
4
VOMR
5
VSS
16
VOML
17
VSS
18
VOPL
19
VDD
2
VSS
20
VSS
21
VDD
22
VIML
1
EN_L
10
VIMR
11
VREFR
12
VIPR
13
EN_R
14
VSS
15
VDD
U504
R551
C558
R552
C556
R559
L504
C555
C554
R558
MAINAMP_L
LOUD_EN
SPK_L_N
SPK_R_P
SPK_R_N
MAINAMP_R
SPK_L_P