NEC Multisync Lcd4020 Users Manual

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NOTE 1: CREATING A SCHEDULE
The schedule function allows the display to be set to power on and off at different times. Up to seven different schedules can be
programmed.
To program the schedule:
1. Enter the SCHEDULE menu. Highlight SCHEDULE SETTING using the up and down buttons. Press the SET or the + button to enter the
Settings menu. Highlight the desired schedule number and press set. The box next to the number will turn yellow. The schedule can now
be programmed.
2. Use the up and...

English-30 NOTE 2: IMAGE PERSISTENCE
Please be aware that LCD Technology may experience a phenomena known as Image Persistence. Image Persistence occurs when a
residual or “ghost” image of a previous image remains visible on the screen. Unlike CRT monitors, LCD monitors’ image persistence is not
permanent, but constant images being displayed for a long period of time should be avoided.
To alleviate image persistence, turn off the monitor for as long as the previous image was displayed. For example, if an...

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This LCD monitor can be controlled via personal computer or wireless remote control using an RS-232C connection.
MONITOR ID and IR CONTROL
Using one PC or one infrared wireless controller, up to 26 individual LCD4020/LCD4620 monitors can be controlled through a daisy chain
via RS-232C connection.
1. Connect PC and LCD4020/LCD4620.
Connect a PC’s RS-232C control output to the LCD4020/LCD4620’s RS-232C input. You can then connect the RS-232C output from the
LCD4020/LCD4620 to another...

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Controlling the LCD monitor via RS-232C Remote Control
This LCD monitor can be controlled by connecting a personal computer with a RS-232C terminal.
Functions that can be controlled by a personal computer are:
•Power ON or OFF
•Switching between input signals
Connection
LCD Monitor + PC
NOTE:If your PC (IBM or IBM compatible) is equipped only with a 25-pin serial port connector, a 25-pin serial port adapter is
required. Contact your dealer for details.
*In order to function, the RS-232C OUT...

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3) Control sequence
(1) The command from a computer to the LCD monitor will be sent in 400ms.
(2) The LCD monitor will send a return command 400ms* after it has received and encoded. If the command isn’t
received correctly, the LCD monitor will not send the return command.
(3) The personal computer checks the command and confirms if the command, which has been sent, has been executed or not.
(4) This LCD monitor sends various codes other than return code. When having a control sequence...

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Features
Reduced Footprint: Provides the ideal solution for environments requiring superior image quality but with size and weight
limitations.
Colour Control Systems: Allows you to adjust the colours on your screen and customize the colour accuracy of your monitor
to a variety of standards.
OmniColor: Combines Six-axis colour control and the sRGB standard. Six-axis colour control permits colour adjustments via
six axes (R, G, B, C, M and Y) rather than through the three axes (R, G and B)...

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Troubleshooting
No picture
•The signal cable should be completely connected to the
display card/computer.
•The display card should be completely seated in its slot.
•Front Power Switch and computer power switch should
be in the ON position.
•Check to make sure that a supported mode has been
selected on the display card or system being used.
(Please consult display card or system manual to
change graphics mode.)
•Check the monitor and your display card with respect to
compatibility and...

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Specifications - LCD4020
Product Specifications
LCD Module 40 /101.6cm diagonal
Pixel Pitch: 0.648mm
Resolution: 1366 x 768 dots
Colour: Over 16 million colours (depending on video card used)
Brightness: 700cd/m
2 (Max.), 500cd/m2 (Typ.)
Contrast Ratio: 1200:1
Viewing Angle: Up 89°/ Down 89°/ Left 89°/ Right 89° (typ) @ CR>10
Design View Distance: 1100mm
Frequency Horizontal: 15.625/15.734kHz, 31.5kHz - 91.1kHz (Analog Input)
31.5kHz - 91.1kHz (Digital Input)
Vertical: 50.0 - 85.0 Hz
Pixel...

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Specifications - LCD4620
Product Specifications
LCD Module 46 /116.8cm diagonal
Pixel Pitch: 0.7455mm
Resolution: 1366 x 768 dots
Colour: Over 16 million colours (depending on video card used)
Brightness: 650cd/m
2 (Max.), 500cd/m2 (Typ.)
Contrast Ratio: 1200:1
Viewing Angle: Up 89°/ Down 89°/ Left 89°/ Right 89° (typ) @ CR>10
Design View Distance: 1300mm
Frequency Horizontal: 15.625/15.734kHz, 31.5kHz - 91.1kHz (Analog Input)
31.5kHz - 91.1kHz (Digital Input)
Vertical: 50.0 - 85.0 Hz...

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Pin Assignment
1) Analog RGB input (MiniDsub15p): VGA
Pin No Name
1Video Signal Red
2Video Signal Green
3Video Signal Blue
4GND
5DDC-GND
6Red-GND
7Green-GND
8Blue-GND
9+5V (DDC)
10 SYNC-GND
11 GND
12DDC-SDA
13 H-SYNC
14V-SYNC
15 DDC-SCL
2) S-VIDEO input: VIDEO
Pin No Name
1GND
2GND
3Y (Luminance)
4C (Chroma)
3) Digital RGB input (DVI-D): DVI
4) RS-232C input/output
Pin No Name
1connected to 7&8
2RXD
3TXD
4connected to 6
5GND
6connected to 4
7connected to 1&8
8connected to 1&7
9NC
Pin -...