ViewSonic VA1930wm-1 Service Manual page 60

P701
2
3
4
5
1
+14V
+14V
R704
R706
47K Q703
R705
PMBT3904
27K
R708 27K
1
5 MUTE
PMBT3904
+14V
R713
R714
5 VOL
ViewSonic Corporation
Layout guide :
1. Tie the I.C. pin 1,2,3,18,19,20 to ground with a
large copper pour (open mask layer)
Line_L R702 10K
Line_R R703 10K
10K
1
R707
Q701
+
5K6
5K6
100
1
Q702
PMBT3904
Confidential - Do Not Copy
57
C704 0.47uF
4
INL
C706 0.47uF
9
INR
U701
TDA_7496L
11
Stby
12
Mute
6
Volume
VG1930wm-1
+14V
+14V 5,6
+
C705 470uF/16V
17
OutL
C707 470uF/16V
14
OutR
10
Svr
+
C701 change to 220uF from 470uF
for svr rise up earlier
LEFT_SPEAKER+
CN701
4
3
2
1
RIGHT_SPEAKER+
ViewSonic Corporation
Model
Audio
Title
Date Rev: