Tuner Board - AOC envision L37W431 Service Manual

37'' LCD TV

9.3 Tuner Board

715T2275-1
COMP_R1
L116
COMP_Y 1
L100
1
COMP_PB1
L118
1 2
COMP_PR1
120 OHM
C140
68pF
AGND
L119
AGND 1
120 OHM
AV_2 R156
2 AV_2
75Ω 1/10W
600 OHM L121
600 OHM L122
600 OHM L123
600 OHM L124
AGND
U100
CH_SEL2 CH_SEL1 A_I
0 0 AV1
0 1 AV2
1 0 COMP
1 1 DVD
L111
JACK J101
1 2
COMP_L1
600 OHM
C131
470pF
7
AGND
L112
SVIDEO_C 1 2 2
120 OHM
L113 1
SVIDEO_Y
1 2 5
120 OHM
R137
R138
75Ω 1/10W 75Ω 1/10W C132 C133
68pF 68pF
AGND
L114
1 2
600 OHM
1 2
120 OHM
C137 C135
470pF
2
68pF
120 OHM
AGND
AGND
J102
C141 J103
68pF
JACK
AV2_R_S
AV2_L_S
AV_2_S
2
R153
R154
C142 0Ω 1/8W C143
68pF 68pF
0Ω 1/8W
AGND
AGND AGND
5 RN101 4
6 3
7 2
8 1
AGND
47K 1/16W
AV2_L C144 10uF/16V
AV2_R C145 10uF/16V
AV1_R C146 10uF/16V
AV1_L C147 10uF/16V
C148 10uF/16V
COMP_R1
C149 10uF/16V
COMP_L1
5 4
6 3
7 2
8 1
RN102
47K 1/16W
AGND
8
9
R132
3 0Ω 1/8W
4
6
AGND
switch
L115
1 2
600 OHM
L117
1 2
600 OHM
AGND
JACK L120
1 2
AV_1 2
120 OHM
R155
75 1/16W
AGND
5 RN100 4
6 3
7 2
8 1
47K 1/16W
U100 74HC4052D
AV1_R1 12 13
X0 X
AV2_R1 14
X1
COMP_AR1 15 3
X2 Y
I_DVD_AR1 11
X3
AV1_L1 1
Y 0
AV2_L1 5
Y 1
COMP_AL1 2
Y 2
I_DVD_AL1 4
Y 3
CH_SEL1 10
A
CH_SEL2 9
B
8V
6
EN
D100 7
VEE
16
VDD
LL4148-GS08 C162 C163
+
10uF/16V
0.1uF
5 4
6 3
7 2
8 1 AGND
RN103
47K 1/16W
53
R131
R133
U105
1
A0
2
A1
R139 10K 1/16W 3
A2
100 1/16W 4
I/O0
R140 5
I/O1
6
I/O2
R145
100 1/16W 7
I/O3
8
VSS
C134 AGND
10uF/16V
LINE_O_L 4
OPTION
LINE_O_R 4
C136
10uF/16V
AV_2_S
AV2_L_S
AV2_R_S
SVIDEO_Y
2 CVBS_SEL_1
3 TUNER_OUT
SVIDEO_C
A_1_R 4
AV_2
A_1_L 4 2 AV_2
AV_1
2 AV_1
COMP_Y1
COMP_PB1
COMP_PR1
3,4 SD1
3,4 SC1
AGND
TPV(Top victory) Electronics Co.,ltd.
Title
01 I/O Connect
Size Document Number
A3 T2275-A-X-X-1-061109
Date: Thursday , Nov ember 09, 2006
Envision L37W431
5V_A
10K 1/16W
10K 1/16W
R134
PCA9554PW
1K 1/16W
16
VDD
15
SD1 3,4
SDA
14
SC1 3,4
SCL
13
INT
12 R142 100 1/16W
I/O7 CH_SEL4 2
11 R144 100 1/16W
I/O6 CH_SEL3 2
R146 100 1/16W
10 CH_SEL2
I/O5
9 R147 100 1/16W CH_SEL1
I/O4
C165
68pF CN104
80 OHM AGND
L125
1
300 OHM 2
3
L126 4
5
L127 6
300 OHM
CONN
C167 C166
330pF 330pF
AGND
12V_T
J100
5V_A
36 35
34 33
32 31
30 29
28 27
26 25
24 23
22 21
L_OUT 4
20 19
R_OUT 4
18 17
16 15
HDMI_R 4
14 13
HDMI_L 4
12 11
10 9
PC_R 4
8 7
PC_L 4
6 5
4 3
2 1
VIDEO_OUT 2
CONN
AGND
Rev
A
Sheet 1 of 1