Schematic Diagram - LG FLATRON E1940T Service Manual

R102
0R05 1/10W
H_Sy nc
V_Sy nc
5VCC
2K2 1/16W 5%
R144
R143
4K7 1/16W 5% 4K7 1/16W 5%
DSUB_SCL 15
5 DDC_A_SCL
R101 14
100OHM1/16W
13
DSUB_SDA 12
5 DDC_A_SDA
R113 11
100OHM1/16W
R139
1K 1/16W 5%
CN102
8
VSY NC
15 DVI_HPD
SY NC GND
6
DDC SCL
7
DDC SDA
14
+5V
16
HPD
11
1/3shield
3
2/4shield
19
0/5shield
22
clk shield
18
DAT0+
17
DAT0-
10
DAT1+
9
DAT1-
2
DAT2+
1
DAT2-
13
DAT3+
12
DAT3-
5
DAT4+
4
DAT4-
21
DAT5+
20
DAT5-
23
clk+
24
clk-
ESD_5V
JACK
U107
4
I/O3 I/O2
5
VDD GND
C120 6
I/O4 I/O1
NC
AZC199-04S
GND POWER DGND
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes

SCHEMATIC DIAGRAM

R103 100OHM1/16W
R104 100OHM1/16W
R106 R107 C103 C104
2K2 1/16W 5% 22pF 22pF
CN101
DSUB_5V
10
5 VGA_PLUG
9 DSUB_5V
4
8 VGA_B-
3 VGA_B+
7 VGA_G-
ZD104
2 VGA_G+
RLZ5.6B
6 VGA_R-
1 VGA_R+ VGA_R+
D-SUB 15P VGA_G+
5 VGA_DET
R141
1K 1/16W 5%
DVI_DET 5
DVI_5V
DVI_SCL R118 100OHM1/16W
DVI_SDA R119 100OHM1/16W
R120 1K 1/16W 5%
C115
100N 16V
U105 ESD_5V U106
AZC199-04S AZC199-04S
3 1 6 1 6
I/O1 I/O4 I/O1 I/O4
2 2 5 2 5
GND VDD GND VDD
1 3 4 3 4
I/O2 I/O3 I/O2 I/O3
C118
NC
1. SCALER
VGA_B+
DSUB_H 5
DSUB_V 5
VGA_B-
5V_ESD
U104
DSUB_SDA 6 1 H_Sy nc
I/O4 I/O1
5 2
VDD GND
DSUB_SCL 4 3 V_Sy nc
I/O3 I/O2
VGA_G+
C112 AZC199-04S
NC
VGA_G-
U103
5V_ESD
3 4 VGA_B+
I/O2 I/O3
2 5
GND VDD
1 6
I/O1 I/O4
VGA_R+
C101
AZC199-04S NC
VGA_R-
DVI_5V
DDC_D_SCL
DDC_D_SCL 5
DDC_D_SDA
DDC_D_SDA 5
R133
NC
R140
NC
Q101
R126 10OHM1/16W RX0P NC
RX0P 5
R127 10OHM1/16W RX0N
RX0N 5
R128 10OHM1/16W RX1P
RX1P 5
R129 10OHM1/16W RX1N
RX1N 5
R130 10OHM1/16W RX2P
RX2P 5
R131 10OHM1/16W RX2N
RX2N 5
R132 10OHM1/16W RXCP
RXCP 5
R134 10OHM1/16W RXCN
RXCN 5
ESD_5V
R137 R138
4K7 1/16W 5% 4K7 1/16W 5%
C119
DVI_SCL R121
NC DVI_SDA R122
5 DDC_WP
FB102
1 2 R105 100OHM1/16W
BEAD
R108 C105
5pF/50V
75R 1/16W 5%
R109 100OHM1/16W
R110 470R 1/16W 5%
FB103
1 2 R111 100OHM1/16W
BEAD
R112 C109
5pF/50V
75R 1/16W 5%
R114 100OHM1/16W
FB101
1 2 R115 100OHM1/16W
BEAD
R116
C113
75R 1/16W 5% 5pF/50V
R117 100OHM1/16W
HDCP_CTRL 5
R135
NC R148
NC/4K7 1/16W 5%
DSUB_SCL
DSUB_SDA
DVI_5V 5VCC
5 DDC_WP
D102
BAV70
ESD_5V
C117
R136
22K1/16W 220nF 16V
U102
8 1
VCC A0
7 2
WP A1
100OHM1/16W 6 3
SCL A2
100OHM1/16W 5 4
SDA VSS
M24C02-RMN6TP
C102
DSUB_B+ 5
47N16V
C106
DSUB_B- 5
47N16V
C107
DSUB_SOG 5
1N50V
C108
DSUB_G+ 5
47N16V
C110
DSUB_G- 5
47N16V
C111
DSUB_R+ 5
47N16V
C114
DSUB_R- 5
47N16V
DSUB_5V 5VCC
D103
NC/BAV70
C121
R151 NC/0.22uF16V
NC/4K7 1/16W 5%
U108
R149
NC/4K7 1/16W 5% 8 1
VCC A0
7 2
WP A1
R150 NC/100R 1/16W 5% 6 3
SCL A2
R147 NC/100R 1/16W 5% 5 4
SDA VSS
NC/M24C02-WMN6TP
5V_ESD 5VCC
5VCC 3,4,5
FB105 R142
0R05OHM1/16W
1 2
120 OHM
LGE Internal Use Only