Schematic Diagram; Main Board - AOC L27W431 Service Manual

27'' LCD TV

9. Schematic Diagram

9.1 Main Board

DVCC
C227 0.1uF
M24C02
U203
1 8
NC VCC
2 7
NC VCLK
3 6
NC SCL
4 5
VSS SDA
R237 0 1/16W
DVCC
D200
BAT54C
5V
C230
0.1uF
P1_+5V
P202
31
GND
DVI_RX2-
1
DATA2-
DVI_RX2+
2
DATA2+
3
DATA2/4_SHLD
4
DATA4-
5
DATA4+
6
DDC_CLK
7
DDC_DATA
8
A_VSYNC
DVI_RX1-
9
DATA1-
DVI_RX1+
10
DATA1+
11
DATA1/3_SHLD
12
DATA3-
13
DATA3+
14 P1_+5V
+5V
15
GND
16
H_PLUG_DET
17 DVI_RX0-
DATA0-
18 DVI_RX0+
DATA0+
19
DATA0/5_SHLD
20
DATA5-
21
DATA5+
22
CLK_SHLD
DVI_RXC+
23
CLK+
24 DVI_RXC-
CLK-
C1
A_RED
C2
A_GREEN
C3
A_BLUE
C4
A_HSYNC
C5
A_GND1
30
A_GND2
32
GND
JACK
5V_SB
3 3
D208
D207
NC NC
DVI_SCL
DVI_SDA
DVI_RX2- 7
DVI_RX2+ 7
DVI_RX1- 7
DVI_RX1+ 7
R238
1K 1/16W
DVI_RX0- 7
DVI_RX0+ 7
DVI_RX1+ 1
2
DVI_RX1- 3
DVI_RXC+ 7
DVI_RXC- 7
56T662-2
DVI_RXC-
DVI_RXC+
R235
NC U204
NC(NDC7002N)
DVI_SDA
4
D2
5
7 DVI_DSCL
S1
DVI_SCL 6
D1
5V_SB
L208
600 OHM C228
+
U206
PI5V330SQE
HDMI_CLK 2
7 HDMI_CLK S1A IN
VIDEO_CLK
3
8 VIDEO_CLK
S2A
DA
HDMI_HS 5
7 HDMI_HS
S1B DB
VIDEO_HS
6
8 VIDEO_HS S2B DC
DD
HDMI_VS
11
7 HDMI_VS
S1C
VIDEO_VS 10
8 VIDEO_VS S2C EN
14
S1D
13
S2D
U205
6 DVI_RX2-
1 6
5 5V_SB
GND VCC
4 DVI_RX2+
3 4
RClamp0504F
U207
DVI_RX0-
1 6
1 6
2 5 5V_SB
GND VCC
DVI_RX0+
3 4
3 4
Title
RClamp0504F
Size
Date:
37
3V3S
R236
NC
3
G2
2
DVI_DSDA 7
S2
1
G1
C229
0.1uF
HI: SAA7117
LOW : HDMI
1
CLOCK_SW 6
R242
CLK_2EX_1
4 0 1/16W
CLK_2EX
7 DHS_2EX
DHS_2EX 4
DVS_2EX
9
DVS_2EX 4
12
15
HDMI_CLK CLK_2EX_1
R239 NC
HDMI_HS DHS_2EX
R240 NC
HDMI_VS DVS_2EX
R241 NC
715V1768-C
AOC (Top Victory) Electronics Co., Ltd.
DVI
Document Number
A4
Monday, July 24, 2006 Sheet 1
AOC L27W431
4
Rev
C
of 11