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AOC LM929
28
6.3 Audio Board
715L1178-1
R121
10K
CN101 PIN 5 GND, PIN6
/SHUTDOWN,PIN7
VOLUME,PIN8 MUTE
GND
+
C104
10uF
R103
120K
R106
0K
PHONE_LEFT
AVDD
C112
0.01uF/10nf
715L1178-F CIRCUIT
GND
PHONE_RIGHT
C123
0.01uF/10nf
LIN-
GND
DGND
R120
10K
U101
TPA3002D2/TPA3003D2
1
2
3
4
5
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
6
7
8
9
10
11
12
/SD
RINN
RINP
V2P5
LINP
BSLN
PVCCL
PVCCL
LOUTN
LOUTN
PGNGL
PGNGL
LOUTP
LOUTP
PVCCL
PVCCL
BSLP
VCLAMPL
AGND
ROSC
COSC
AVdd
AGND
VAROUTL/NC
VAROUTR/NC
AVcc
MUTE
MODE_OUT/NC
VCLAMPR
BSRP
PVCCR
PVCCR
ROUTP
ROUTP
PGNGR
PGNGR
ROUTN
ROUTN
PVCCR
PVCCR
BSRN
LINN
AVddREF
VREF
VARDIFF/AGND
VARMAX/AGND
VOLUME
REFGND
C138
0.1uF
C142 1000p
WHEN SELECT TDA6110A2, PLEASE CONNECT R123, PIN31,32,35, DELETE R101, FOR
TDA3002D2,9W
+
C109 1.0uF
GND
GND
MUTE
L104
600 OHM
ROUT-
VOLUME
ROUT+
LIN-
GND
VR102
50K
R116
10K
MODE
AOC 19"LCD MONITOR FOR LM929 E
TI_TDA3003D2/TDA3002D2 3W/9W AUDIO
C
11Tuesday, October 28, 2003
Title
Size Document Number Rev
Date: Sheet
of
+
C111 1.0uF
VCC
CN104
33L8022-7A-H FEMALE
1
2
3
4
5
6
7
RIN+
C141
0.1uF
C121
0.1uF/100nf
VCC
J101
EAR/PHONEJACK_STEREO
3
4
2
1
DELETE
+5V
L102
600 OHM
R118
10K
AVCC
VCC
+5V
R119
10K
L108
600 OHM
+
C124
10uF
+12V
R122
120K
C143
1000p
2003/07/18 э
+
C105
1.0uF
L111
Power Core73L253S-1-B
GND
R107 120K
C139
0.1uF
VCC
GND
R114
10K
LIN-
R127
NC/4.7K
C146
56P
+
C134
220uF/16V
+
C129
470uF/16V
C117,118,125,126
パ
0.001UF э
0.1UF FOR EMI 0905
CN103A
WAFER 4P2.0 R/A
1
2
3
4
GND
+12V
CN103
33L8022-3A-H FEMALE
1
2
3
GND
R102
NC/0K
CN101
WAFER 2*7P 2.54mm
2
4
6
8
10
12
14
1
3
5
7
9
11
13
LOUT-
/SHUTDOWN
PHONE_LEFT
VR103
50K
CN102
WAFER 4P2.0 R/A
1
2
3
4
R109
NC
LIN-
VCC
+
C106
1.0uF
C117,118,125,126
パ
0.001UF э
0.1UF FOR EMI 0905
GND
R126 0K
+
C116
10uF
LIN+
L118
120OHM/3A
+
C108 1.0uF
U203
TPA6110A2
1
2
3
4 5
6
7
8
BYP
GND
SD
IN2 VO2
VDD
VO1
IN1
R117 10K
PHONE_LEFT
L113
120OHM/3A
R115
10K
+12V
R125 0K
GND
L119
120OHM/3A
GND
CN104
33L8022-3A-H FEMALE
1
2
3
R132
4.7K
+5V
VOLUME
C122
0.1uF/100nf
+
C130
470uF/16V
CGND
C128
0.1uF
C113
0.1uF/100nf
AVDD
C126
0.1uF/1nf
RIN-
+12V
DGND
GND
+
C131 1.0uF
RIN-
R108
NC
C115
0.01uF/10nf
R124
NC
L107
600 OHM
GND
2003.09.18 EMI ADD SOLUTION FOR L110 L111 CANCEL L101-104
+
C135
0.47uF
C147
56P
+5V
R112
0K
L114
120OHM/3A
/SHUTDOWN
AGND
GND
R128
4.7K
GND
R113
6.8K /NC
L105
600 OHM
+12V
MODE
GND
MUTE
LOUT+
RIN-
CGND
GND
L112
120OHM/3A
LOUT+
GND
L103
600 OHM
ROUT+
+12V
C137
0.1uF
R130
4.7K
WHEN PIN10 SELECT+5V
WHEN USE TDA3002D2
&6110 , PLEASE ADD
R131,132
C149
1000p
WHEN SELECT TDA3003D2, PLEASE CONNECT R110,R111,R112,R113, PIN8,9,10,11 FOR
TDA3003D2,3W
+
C110 1.0uF
L110
Power Core73L253S-1-B
LOUT-
+
C132 1.0uF
L117
120OHM/3A
C101 220 pF
+
C133
220uF/16V
ROUT-
L115
120OHM/3A
R123
NC/0K
GND
C117
0.1uF/1nf
R101
NC/0K
L101
600 OHM
C140
0.1uF
+
C107 1.0uF
C1200.01uF/10nf
C144
56P
LOUT-
L116
120OHM/3A
MODE
RIN-
C103
0.1uF/100nf
WHEN SELECT TDA6110A2, PLEASE CONNECT VR101,VR102,VR103,R125,R126, PIN8,9,10,11 FOR
TDA3002D2,
DGND
C125
0.1uF/1nf
GND
R111
NC
PHONE_RIGHT
LOUT+
ROUT-
AVDD
+
C136
1.0uF
R129 10K/4.7K
DGND
R110
1K
C148 1000p
WHEN PIN9 SELECT GND, VOLUME =VARMAX-VARDIFF =16DB
VR101
10K
C137-C140 0.1UF FOR EMI 0905
C102 0.1uF/100nf
C145
56P
C118
0.1uF/1nf
ROUT+
2003.09.18 EMI ADD SOLUTION FOR L110 L111 CANCEL L101-104
PHONE_RIGHT
C114
0.1uF/100nf
http://www.wjel.net
- SERVICE MANUAL 1
- Revision List 3
- 1. Monitor Specifications 4
- 2. LCD Monitor Description 5
- 3. Operating Instructions 6
- 3.3 Adjusting The Picture 7
- 4.1 Input Signal Connector 9
- 4.2 Power Supply Requirement 10
- 4.4 Panel Specification 12
- 1. TFT LCD Module 13
- 2. Backlight Unit 13
- 5. Block Diagram 14
- 5.2 Software Flowing Chart 15
- 5.3 Electrical Block Diagram 17
- 5.3.2 Inverter/Power Board 18
- MST8131A SCHEMATIC 19
- AOC LM929 20
- PANEL INTERFACE 23
- 6.2 Power Board 25
- 6.3 Audio Board 28
- 7. PCB Layout 29
- 7.2 Power Board 30
- 7.3 Audio Board 31
- 7.4 Key Board 31
- 7.5 CNPC Board 31
- 8. Maintainability 32
- 8.2 Trouble Shooting 33
- 8.2.2 Power/Inverter Board 36
- 8.2.3 Keypad Board 38
- 10. EDID Content 40
- 11. BOM List 41
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