LG 42LV4400 LC420EUG-RDV2-7R1 Service Manual ▷ View online
CONFIDENTIAL – DO NOT COPY
Page 4-2
File No. SG-0000034
Resolution (1920x1080) through RGB (15-Pin D connector)
FHD video digital preset modes at HDMI
Mode No.
Resolution
1 480i
2 480p
3 720p
4 1080i
5 1080p
Video input
Mode No.
Resolution
1 480i
2 480p
3 720p
4 1080i
5 1080p
Parameters
Horizontal Values
(Pixels)
Vertical Values (Lines)
Address 1920 1080
Front Porch
48
3
Sync Width
32
5
Back Porch
80
24
Total 2080
1111
Frequency
66.587 KHz
59.934 Hz
Sync Polarity
P
N
Pixel Rate (MHz)
138.5
Refresh Rate
(Hz)
60
CONFIDENTIAL – DO NOT COPY
Page 5-1
File No. SG-0000034
Chapter 5 Pin Assignment
The TFT LCD monitors use a 15 Pin Mini D-Sub connector as video input source.
Pin
Description
1 Red
2 Green
3 Blue
4 Ground
5 Ground
6 R-Ground
7 G-Ground
8 B-Ground
9
+5V for DDC
10 Ground
11 No
Connection
12 (SDA)
13
H-Sync (Composite Sync)
14 V-Sync
15 (SCL)
CONFIDENTIAL – DO NOT COPY
Page 5-2
File No. SG-0000034
RGB Signal:
a. Sync Type TTL (Separate / Composite) or Sync. On Green
b. Sync polarity Positive or Negative
c. Video Amplitude RGB: 0.7Vp-p
d. Frequency H: support to 30K~70KHz
V: support to 60~85Hz
e. Pixel Clock: support to 138.5 MHz
f
. Connector type: 15-pin D-Sub, female
g. Impedance: 75Ω
HDMI CONNECT PIN ASSIGNMENT:
PIN SIGNAL
ASSIGNMENT
1 TMDS
Data2+
2
TMDS Data2 Shield
3 TMDS
Data2-
4 TMDS
Data1+
5
TMDS Data1 Shield
6 TMDS
Data1-
7 TMDS
Data0+
8
TMDS Data0 Shield
9 TMDS
Data0-
10 TMDS
Clock+
11
TMDS Clock Shield
12 TMDS
Clock-
13 CEC
14
14
Reserved (N.C on device)
15 SCL
16 SDA
17 DDC/CEC
16 SDA
17 DDC/CEC
Ground
18 +5V
Power
19
Hot Plug Detect
CONFIDENTIAL – DO NOT COPY
Page 5-3
File No. SG-0000034
HDMI Signal (HDMI):
a. Pin Assignment Refer to HDMI Pin Assignment
b. Type A
c. Polarity Positive or Negative
d. Frequency
H: 15.734KHz V: 60Hz (NTSC-480i)
H: 31KHz V: 60Hz (NTSC-480p)
H: 45KHz V: 60Hz (NTSC-720p)
H: 33KHz V: 60Hz (NTSC-1080i)
H: 67.5KHz V: 60Hz (NTSC-1080P)
F-Type TV RF connector
NTSC system
Signal level:
Analog 1Vp-p Typical
Frequency: 55.00 ~ 801.00 MHz
ATSC system
IF-output level: 1Vp-p minimum
Frequency: 57.00~803.00 MHz
QAM system (supporting clear QAM)
IF-output level: 1Vp-p minimum
Frequency: 57.00~849.00 MHz
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