![background image](http://html1.mh-extra.com/html/viewsonic/va502mb-1/va502mb-1_service-manual_1020920052.webp)
+
C201
470uF/16V
GND
GND
PIN-3
STANDBY
+
C202
470uF/16V
PIN-1
GND
CN202
WAFER 2*7P 2.54mm
2
4
6
8
10
12
14
1
3
5
7
9
11
13
CN204
33L8022-3A-H FEMALE
1
2
3
C213
0.1uF
GND
GND
+
C210
1.0uF
VOLUME
+
C209
1.0uF
C203
0.1uF
GND
+
C207
470uF/16V
R201 10K
Ω
R208
1K
Ω
+12V
R211
5.6K
Ω
12V
R212
220K
Ω
R203 10K
Ω
C211
100 pF
CN203
WAFER 4P2.0 R/A
1
2
3
4
U201
TDA7496L
1 2 3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18 19 20
GND GND GND
INL
VAROUT_L
VOLUME
VAROUT_R
NC
INR
SVR
STBY
MUTE
GND
OUTR
VS
VS
OUTL
GND GND GND
MUTE
OUT_R
GND
GND
R207
1K
Ω
+
C208
470uF/16V
C206 0.47uF
+
C205
470uF/16V
R210
5.6K
Ω
C204 0.47uF
C212
100 pF
OUT_L
PIN-1
49
ViewSonic Corporation
Confidential - Do Not Copy
VA502mb-1
Model
Title
Date
Rev:
ViewSonic Corporation
AUDIO BOARD
Summary of Contents for VA502mb-1
Page 10: ...7 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 13: ...10 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 14: ...11 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 16: ...PIN Descriptions 13 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 18: ...Block Diagram PIN Function 15 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 38: ...5 7 Packing Procedure 35 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 42: ...39 ViewSonic Corporation Confidential Do Not Copy VA502mb 1 6 Troubleshooting Flow Chart...
Page 43: ...7 Block Diagram 40 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 53: ...9 PCB Layout Diagrams MAIN BOARD 50 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 54: ...POWER BOARD 51 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 56: ...53 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 57: ...AUDIO BOARD 54 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 58: ...KEY BOARD 55 ViewSonic Corporation Confidential Do Not Copy VA502mb 1...
Page 61: ...58 ViewSonic Corporation Confidential Do Not Copy VA502mb 1 Packing for Shipping...