Tuner Board - AOC L27W431 Service Manual

27'' LCD TV

9.3 Tuner Board

COMP_L1
SVIDEO_C
SVIDEO_Y
R137
75Ω 1/10W
L114
1
COMP_R1
600 OHM
L116
1 2
COMP_Y 1
120 OHM
L100
1 2
COMP_PB1
L118 120 OHM
1 2
COMP_PR1
120 OHM
C140 C141
68pF 68pF
AGND
L119
AGND 1 2
120 OHM
C142
AV_2 R156 68pF
2 AV_2
75Ω 1/10W
AGND
600 OHM L121 AV2_L
600 OHM L122 AV2_R
600 OHM L123 AV1_R
600 OHM L124 AV1_L
COMP_R1
COMP_L1
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
600 OHM
C131
470pF 7 8
AGND
9
L112
1 2 2 3
120 OHM
L113 1 4
1 2 5 6
AGND
120 OHM switch
R138
75Ω 1/10W C132 C133
68pF 68pF
AGND
2
C137 C135
470pF
68pF
AGND
AGND
J102
J103
JACK
AV2_R_S
AV2_L_S
AV_2_S JACK L120
1 2
R153 120 OHM
R154
0Ω 1/8W C143
0Ω 1/8W 68pF
AGND AGND
5 RN101 4 5 RN100 4
6 3 6 3
7 2 7 2
8 1 8 1
AGND
47K 1/16W 47K 1/16W
C144 10uF/16V
C145 10uF/16V
C146 10uF/16V
C147 10uF/16V
C148 10uF/16V
C149 10uF/16V
8V
D100
LL4148-GS08
5 4 5 4
6 3 6 3
7 2 7 2
8 1 8 1
RN102 RN103
47K 1/16W 47K 1/16W
AGND
R132
0Ω 1/8W
C134
L115 10uF/16V
1 2
600 OHM
L117
1 2
600 OHM
C136
10uF/16V
AGND
AV_1 2
R155
75 1/16W
AGND
U100 74HC4052D
AV1_R1 12 13
X0 X A_1_R 4
AV2_R1 14
X1
COMP_AR1 15 3
A_1_L 4
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
6
EN
7
VEE
16
VDD
+ C162 C163
10uF/16V
0.1uF
AGND
50
AOC L27W431
5V_A
R131 10K 1/16W
R133 10K 1/16W
R134
U105 PCA9554PW
1K 1/16W
1 16
A0 VDD
2 15
A1 SDA
R139 10K 1/16W 3 14
A2 SCL
100 1/16W 4 13
I/O0 INT
R140 5 12 R142 100 1/16W
I/O1 I/O7
6 11 R144 100 1/16W
I/O2 I/O6
R145
R146 100 1/16W
100 1/16W 7 10
I/O3 I/O5
8 9 R147 100 1/16W
VSS I/O4
AGND
LINE_O_L 4
OPTION
LINE_O_R 4
C165
68pF
80 OHM AGND
L125
AV_2_S
300 OHM
AV2_L_S L126
AV2_R_S L127
300 OHM
C167 C166
330pF 330pF
AGND
J100
SVIDEO_Y 36 35
34 33
32 31
2 CVBS_SEL_1
30 29
28 27
3 TUNER_OUT
26 25
SVIDEO_C 24 23
22 21
AV_2 20 19
2 AV_2
AV_1 18 17
2 AV_1
16 15
14 13
COMP_Y 1
12 11
COMP_PB1
10 9
COMP_PR1
8 7
6 5
4 3
3,4 SD1
2 1
3,4 SC1
CONN
AGND
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 Sheet 1
SD1 3,4
SC1 3,4
CH_SEL4 2
CH_SEL3 2
CH_SEL2
CH_SEL1
CN104
1
2
3
4
5
6
CONN
12V_T
5V_A
L_OUT 4
R_OUT 4
HDMI_R 4
HDMI_L 4
PC_R 4
PC_L 4
VIDEO_OUT 2
Rev
A
of 1