Tuner Board - AOC N20W451T Service Manual

20" LCD TV

10.3. Tuner Board

715T1529-1-2
A GN D C 115 C 116
C 117
68pF
68pF 68pF
L111 120 O HM
L112 120 O HM
L113 120 O HM
L115 600 O HM
L116 600 O HM
C 126
C 125
470p F 470p F
J103
JA C K
A GN D
3, 4 C OMP _A IR
3, 4 C OMP _A IL
R 618
47K £[ 1/16W
L103
C 101 120 O HM
330p F
21 A GN D
C 112
20 68pF
19
18
17 R 133
16 75£[ 1/16 W S CA R T1_FB
15
L101 120 O HM
14
13
12
C 119
11 68pF A GN D
120 O HM
10
L102
9 R 131
8 15K £[ 1/16W S C1 _FU NC TION
7
6 L119 600 O HM
5 C 638
4 470p F R 615
3 47K £[ 1/16W
2
C 639
1
470p F
S CA R T1_C V B S
J102
L117
SCART-1
C 127
120 O HM
68pF R 132
75£[ 1/16 W
A GN D A GN D
L123
150 O HM
Tommy 06/02/16
R 119 C 129 R 118 C 131 R 117 C 133
75£[ 1/16 W 75£[ 1/16 W 75£[ 1/16 W
47pF/50V 47pF/50V 47pF/50V
Tommy 06/02/16 Tommy 06/02/16 Tommy 06/02/16
L122
J105
600 O HM
JA C K
3 2
L121
600 O HM
C 641
C 640
470p F 470p F
5V
R 122 R 120
75£[ 1/16 W 22K £[ 1/16W
Q 101
P MB S 3904 1
V ID E O_ OU T2
C 114
10uF/16V
R 127
R 129 18K £[ 1/16W
470£ [ 1/1 6W
A GN D
A IL1 3, 4
L120 600 O HM
A IR 1 3, 4
R 616
47K £[ 1/16W
C OMP _P R
L125
150 O HM
Tommy 06/02/16
C OMP _P B
L124
150 O HM
Tommy 06/02/16
C OMP _Y
R 143
0£[ 1 /16W
R 144
0£[ 1 /16W
R 145
0£[ 1 /16W
R 147
0£[ 1 /16W
R 148
0£[ 1 /16W
R 149
0£[ 1 /16W
R 150
0£[ 1 /16W
A GN D
57
S V ID E O _C
L109
120 O HM C 113
R 121 68pF
75£[ 1/16 W JP 100
A GN D A GN D
A V _ 1 7
L118
120 O HM C 150
R 141
68pF
75£[ 1/16 W
3
A GN D A GN D 4
S V ID E O _Y
L110 5
120 O HM C 120
R 128
68pF
75£[ 1/16 W
A GN D
A GN D
J101
2 1
5V
4 3
6 5
12V _T 8 7
10 9
S C1 _FU NC TION
12 11
14 13
16 15
2,3 S CL
18 17
2,3 S DA
20 19
C OMP _Y 22 21
C OMP _P B 24 23
C OMP _P R 26 25
28 27
30 29
S CA R T1_G
32 31
S CA R T1_B
34 33
S CA R T1_R
36 35
S CA R T1_FB
C ON N
A GN D
A GN D
S CA R T1_C V B S C 139 U 107
10uF/6.3V
1
V IN 1 V OU T
3
V IN 2
A V _ 1 C 143 5
V IN 3
10uF/6.3V
C V B S _S W 1 2
2 C V B S _S W 1
S W 1
C V B S _S W 2 4
2 C V B S _S W 2 S W 2
6
5V V +
C 147 + C 148 N JM2244
10uF/16V 0.1uF/16V
A GN D
5V
0.1uF/16V + C 122
C 121 100u F/16 V
A GN D A GN D
AO C (T op Vict ory ) El ectr oni cs C o., Ltd .
Ti tl e
I/O 715T1529-1-2
S ize D ocument N umber
A 3
PAL INPUT
D ate : W ed nesday, June 14, 200 6
AOC N20W451T
JA C K
8
9
2
1
6
switch
A GN D
P C_ R_I 3,4
P C_ L_I 3,4
R _O UT 3
L_O U T 3
TU N E R _O U T 2
S CA R T1_C V B S
A V _ 1
C V B S _S E L
S V ID E O _Y
S V ID E O _C
C 151 C 153
68pF 68pF
7 C V B S _S E L
C 144
68pF
A GN D
U107
CVBS_SW1 CVBS_SW2
CVBS_SEL
0 0
SCART1_CVBS
X 1 AV_1
R ev
1
4
S heet 1 of