Service manual
ViewSonic Corporation Confidential - Do Not Copy
61
10. Schematic Diagrams
Model
Title
Date Rev:
ViewSonic Corporation
Audio
Layout guide :
1. Tie the I.C. pin 1,2,3,18,19,20 to ground with a
large copper pour (open mask layer)
L
Line_R
Line_L
R
MUTE2
VOL_C2
+14V 2,3
+14V
+14V
+14V
+14V
R711 2.2K
+
C705
470u/16V
C706
0.47/16V
R709 1K
R708
27K
R713 5K6
R703 10K
R710 1K
R712
2.2K
C711 4700p/50V
R702 10K
Q702
PMBT3904
1
32
+
C701 220u/16V
Q703
PMBT3904
1
32
Q701
PMBT3904
1
32
C709 0.1/50V
CN701
4P 2.0mm
1
2
3
4
+
C713 10u/25V
C712 4700p/50V
C704
0.47/16V
+
C702
470u/25V
R706
47K
FB701
600Ω
R707 5K6
U701
TDA7496SA
8
11
15
5
4
3
2
6
1
7
9
10
14
13
12
S_GND
GND
GND
INL
VAROUT_L
VOLUME
VAROUT_R
NC
INR
SVR
STBY
MUTE
OUTR
VS
OUTL
R701 5K1
R704
10K
+
C707
470u/16V
C703
0.1/50V
P701
AUDIO IN
2
3
4
5
1
R714 100
R705
27K
VX1935wm-3