Declaration of conformity ............................................................................................................................. English-1
Important Information ...................................................................................................................................English-2
Parts Name and Functions .......................................................................................................................... English-7
Control Panel...................................................................................................................................... English-7
Power ON and OFF Modes ................................................................................................................ English-16
Power Indicator .................................................................................................................................. English-16
Using Power Management ................................................................................................................. English-17
Selecting a video source .................................................................................................................... English-17
Information OSD................................................................................................................................. English-18
MULTI DISPLAY ................................................................................................................................. English-23
Remote Control Function ............................................................................................................................. English-27
Controlling the LCD monitor via RS-232C Remote Control ......................................................................... English-29
Controlling the LCD monitor via LAN Control .............................................................................................. English-30
Features .......................................................................................................................................................English-33
Manufacturer’s Recycling and Energy Information ...................................................................................... English-37
www.necdisplaysolutions.com
Declaration of conformity
For USA
FCC Information
1. Use the attached specified cables with the MultiSync X431BT (L439NH) color display so as not to interfere with radio and
television reception.
(1) Please use the supplied power cord or equivalent to ensure FCC compliance.
(2) Please use a good quality shielded video signal cable.
Use of other cables and adapters may cause interference with radio and television reception.
2. This equipment has been tested and found to comply with the limits for a class A digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required
to correct the interference at his own expense.
If necessary, the user should contact the dealer or an experienced radio/television technician for additional suggestions.
The user may find the following booklet, prepared by the Federal Communications Commission, helpful: “How to Identify
and Resolve Radio-TV Interference Problems.” This booklet is available from the U.S. Government Printing Office, Washington,
D.C., 20402, Stock No. 004-000-00345-4.
For Canada
Canadian Department of Communications Compliance Statement
DOC: This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
C-UL: Bears the C-UL Mark and is in compliance with Canadian Safety Regulations according to CAN/CSA C22.2 No. 60950-1.
English
Windows is a registered trademark of Microsoft Corporation.
NEC is a registered trademark of NEC Corporation.
OmniColor is a registered trademark of NEC Display Solutions Europe GmbH in the countries of EU and
Switzerland.
All other brands and product names are trademarks or registered trademarks of their respective owners.
DisplayPort is trademarks of Video Electronics Standards Association.
HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of
HDMI Licensing LLC.
English-1
Important Information
WARNING
TO PREVENT FIRE OR SHOCK HAZARDS, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. ALSO, DO NOT
USE THIS UNIT’S POLARIZED PLUG WITH AN EXTENSION CORD RECEPTACLE OR OTHER OUTLETS UNLESS
THE PRONGS CAN BE FULLY INSERTED.
REFRAIN FROM OPENING THE CABINET AS THERE ARE HIGH VOLTAGE COMPONENTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
CAUTION:TO REDUCE THE RISK OF ELECTRIC SHOCK, MAKE SURE POWER CORD IS UNPLUGGED FROM
WALL SOCKET. TO FULLY DISENGAGE THE POWER TO THE UNIT, PLEASE DISCONNECT THE
POWER CORD FROM THE AC OUTLET. DO NOT REMOVE COVER (OR BACK). NO USER
SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
This symbol warns user that uninsulated voltage within the unit may have sufficient magnitude to cause
electric shock. Therefore, it is dangerous to make any kind of contact with any part inside this unit.
This symbol alerts the user that important literature concerning the operation and maintenance of this unit
has been included. Therefore, it should be read carefully in order to avoid any problems.
CAUTION: Please use the power cord provided with this display in accordance with the table below. If a power cord is not
supplied with this equipment, please contact your supplier. For all other cases, please use a power cord that matches the
AC voltage of the power outlet and has been approved by and complies with the safety standard of your particular country.
Plug TypeNorth America
European
Continental
U.K.ChineseJapanese
Plug Shape
Region
Voltage
*When operating the MultiSync X431BT (L439NH) monitor with its AC 125-240V power supply, use a power supply cord that
matches the power supply voltage of the AC power outlet being used.
NOTE: This product can only be serviced in the country where it was purchased.
U.S.A./Canada
120*230220100230
U.K.ChinaJapanEU (except U.K.)
Declaration
Declaration of the Manufacturer
We hereby certify that the color monitor MultiSync
X431BT (L439NH) is in compliance with
Council Directive 2006/95/EC:
– EN 60950-1
Council Directive 2004/108/EC:
– EN 55022
– EN 61000-3-2
– EN 61000-3-3
– EN 55024
and marked with
NEC Display Solutions, Ltd.
4-13-23, Shibaura,
Minato-Ku
Tokyo 108-0023, Japan
Warning
This is a class A product. In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.
English-2
Safety Precautions, Maintenance & Recommended Use
FOR OPTIMUM PERFORMANCE, PLEASE NOTE THE
FOLLOWING WHEN SETTING UP AND USING
THE MULTI-FUNCTION MONITOR:
•DO NOT OPEN THE MONITOR. There are no user
serviceable parts inside and opening or removing covers
may expose you to dangerous shock hazards or other risks.
Refer all servicing to qualified service personnel.
•Do not spill any liquids into the cabinet or use your monitor
near water.
•Do not insert objects of any kind into the cabinet slots, as
they may touch dangerous voltage points, which can be
harmful or fatal or may cause electric shock, fire or
equipment failure.
•Do not place any heavy objects on the power cord.
Damage to the cord may cause shock or fire.
•Do not place this product on a sloping or unstable cart,
stand or table, as the monitor may fall, causing serious
damage to the monitor.
•Do not mount this product face up, face down or upside
down for an extended period of time as it may cause
permanent damage to the screen.
•The power supply cord you use must have been approved
by and comply with the safety standards of your country.
(Type H05VV-F 3G 1mm
•In UK, use a BS-approved power cord with molded plug
having a black (13A) fuse installed for use with this monitor.
•Do not place any objects onto the monitor and do not use
the monitor outdoors.
The lamps in this product contain mercury. Please
•
2
should be used in Europe)
dispose according to state, local or federal law.
•Do not bend, crimp or otherwise damage the power cord.
•If glass is broken, handle with care.
•Do not cover vent on monitor.
•Do not use monitor in high temperature, humid, dusty, or
oily areas.
•If monitor or glass is broken, do not come in contact with the
liquid crystal and handle with care.
•Allow adequate ventilation around the monitor, so that heat
can properly dissipate. Do not block ventilated openings or
place the monitor near a radiator or other heat sources.
Do not put anything on top of the monitor.
•The power cable connector is the primary means of detaching
the system from the power supply. The monitor should be
installed close to a power outlet, which is easily accessible.
•Handle with care when transporting. Save packaging for
transporting.
•If using the cooling fan continuously, it is recommended to
wipe holes clean a minimum of once a month.
•Please clean the holes of back cabinet to reject dirt and
dust at least once a year because of set reliability.
•When using a LAN cable, do not connect to a peripheral
device with wiring that might have excessive voltage.
Connecting to a TV*
•Cable distribution system should be grounded (earthed) in
accordance with ANSI/NFPA 70, the National Electrical
Code (NEC), in particular Section 820.93, Grounding of
Outer Conductive Shield of a Coaxial Cable.
•The screen of the coaxial cable is intended to be connected
to earth in the building installation.
Immediately unplug your monitor from the wall outlet and refer
servicing to qualified service personnel under the following
conditions:
•When the power supply cord or plug is damaged.
If liquid has been spilled, or objects have fallen into the monitor.
•
•If the monitor has been exposed to rain or water.
•If the monitor has been dropped or the cabinet damaged.
•If you notice any structural damage such as cracks or
unnatural wobbling.
•If the monitor does not operate normally by following
operating instructions.
Recommended Use
•For optimum performance, allow 20 minutes for warm-up.
•Rest your eyes periodically by focusing on an object at least
5 feet away. Blink often.
•Position the monitor at a 90° angle to windows and other
light sources to minimize glare and reflections.
•Clean the LCD monitor surface with a lint-free, non-abrasive
cloth. Avoid using any cleaning solution or glass cleaner!
•Adjust the monitor’s brightness, contrast and sharpness
controls to enhance readability.
•Avoid displaying fixed patterns on the monitor for long
periods of time to avoid image persistence (after image
effects).
•Get regular eye checkups.
Ergonomics
To realize the maximum ergonomic benefits, we recommend
the following:
•Use the preset Size and Position controls with standard
signals.
•Use the preset Color Setting.
•Use non-interlaced signals.
•Do not use primary color blue on a dark background, as it is
difficult to see and may produce eye fatigue due to
insufficient contrast.
Cleaning the LCD Panel
•When the liquid crystal panel is stained with dust or dirt,
please wipe with soft cloth gently.
•Please do not rub the LCD panel with hard material.
•Please do not apply pressure to the LCD surface.
•Please do not use OA cleaner it will cause deterioration or
discolor on the LCD surface.
Cleaning the Cabinet
•Unplug the power supply
•Gently wipe the cabinet with a soft cloth
•To clean the cabinet, dampen the cloth with a neutral
detergent and water, wipe the cabinet and follow with a dry
cloth.
NOTE: DO NOT clean with benzene thinner, alkaline detergent,
alcoholic system detergent, glass cleaner, wax, polish
cleaner, soap powder, or insecticide. Rubber or vinyl
should not be in contact with the cabinet for an
extended period of time. These types of fluids and
materials can cause the paint to deteriorate, crack or
peel.
English
* The product you purchased may not have this feature.
English-3
Contents
Your new MultiSync monitor box* should contain the following:
•LCD monitor
•Power cord*
•Video Signal Cable
•Wireless Remote Control and AA Batteries
•Setup Manual
(Mini D-SUB 15 pin to
1
Video Signal Cable
Mini D-SUB 15 pin)
•Cable cover
•Clamp x 2
•Screw M3 x 2
•Screw M4 x 2
•CD-ROM
Screw M4 x 2
Power Cord*
Screw M3 x 2
Clamp x 2
1
Cable cover
Setup Manual
CD-ROM
Setup Manual
*Remember to save your original box and packing material to transport or ship the monitor.
*1Type and number of power cords included will depend on the where the LCD monitor is to be shipped. When more than
one power cord is included, please use a power cord that matches the AC voltage of the power outlet and has been
approved by and complies with the safety standard of your particular country.
Wireless Remote Control
and AA Batteries
English-4
Installation
For proper installation it is strongly recommended to use a
trained, NEC authorized service person. Failure to follow
NEC standard mounting procedures could result in damage
to the equipment or injury to the user or installer. Product
warranty does not cover damage caused by improper
installation. Failure to follow these recommendations could
result in voiding the warranty.
Mounting
DO NOT mount the monitor yourself. Please ask dealer.
For proper installation it is strongly recommended to use a
trained, qualified technician. Please inspect the location
where the unit is to be mounted. Mounting on wall or ceiling
is the customer’s responsibility. Not all walls or ceilings are
capable of supporting the weight of the unit. Product
warranty does not cover damage caused by improper
installation, remodelling, or natural disasters. Failure to
comply with these recommendations could result in voiding
the warranty.
DO NOT block ventilated openings with mounting
accessories or other accessories.
For NEC Qualified Personnel:
To insure safe installation, use two or more brackets to
mount the unit. Mount the unit to at least two points on the
installation location.
Please note the following when mounting
on wall or ceiling
•When using mounting accessories, they must comply
with NEC compatible mounting method.
•NEC strongly recommends
using size M6 screws
(11-12 mm + thickness of
bracket and washer in
length). If using screws
longer than 11-12 mm,
check the depth of the hole.
(Recommended Fasten
Force: 470 - 635N•cm)
NEC recommends mounting
interfaces that comply with
UL1678 standard in North
America.
•Prior to mounting, inspect the installation location to
insure that it is strong enough to support the weight of
the unit so that the unit will be safe from harm.
•Refer to the instructions included with the mounting
equipment for detailed information.
Unit
11-12 mm
Screw length should equal
depth of hole (11-12 mm) +
the thickness of mounting
bracket and washer.
Mounting
Bracket
Washer
Screw
Thickness
of bracket
and washer
Orientation
•When using the monitor in the portrait position, the
monitor should be rotated clockwise so that the left side
is moved to the top and the LED indicator light is on the
bottom. This will allow for proper ventilation and will
extend the lifetime of the monitor. Improper ventilation
may shorten the lifetime of the monitor.
NOTE: When using the monitor in portrait position, monitor
should be used with mounting accessories.
English
LED Indicator
Mounting location
•The ceiling and wall must be strong enough to support
the monitor and mounting accessories.
•DO NOT install in locations where a door or gate can hit
the unit.
•DO NOT install in areas where the unit will be subjected
to strong vibrations and dust.
•DO NOT install near where the main power supply
enters the building.
•Do not install in where people can easily grab and hang
onto the unit or the mounting apparatus.
•When mounting in a recessed area, as in a wall, leave at
least 4 inches (10cm) of space between the monitor and
the wall for proper ventilation.
•Allow adequate ventilation or provide air conditioning
around the monitor, so that heat can properly dissipate
away from the unit and mounting apparatus.
Mounting on ceiling
•Ensure that the ceiling is sturdy enough to support the
weight of the unit and the mounting apparatus over time,
against earthquakes, unexpected vibrations, and other
external forces.
•Be sure the unit is mounted to a solid structure within the
ceiling, such as a support beam. Secure the monitor
using bolts, spring lock washers, washer and nut.
•DO NOT mount to areas that have no supporting internal
structure. DO NOT use wood screws or anchor screws
for mounting. DO NOT mount the unit to trim or to
hanging fixtures.
Maintenance
•Periodically check for loose screws, gaps, distortions, or
other problems that may occur with the mounting
apparatus. If a problem is detected, please refer to
qualified personnel for service.
•Regularly check the mounting location for signs of
damage or weakness that may occur over time.
English-5
Attaching Mounting Accessories
1. Attach Mounting Accessories
Be careful to avoid tipping monitor when attaching
accessories.
Mounting Interface
200 mm
500 mm
Mounting accessories can be attached with the monitor in
the face down position. To avoid damaging the screen face,
place the protective sheet on the table underneath the LCD.
The protective sheet was wrapped around the LCD in the
original packaging. Make sure there is nothing on the table
that can damage the monitor.
When using mounting accessories, they must be NEC
compliant and approved.
2. Ventilation Requirements
When mounting in an enclosed space or recessed area,
leave adequate room between the monitor and the
enclosure to allow heat to disperse, as shown below.
3. Prevent Tipping
When using the display fasten the LCD monitor to a wall
using a cord or chain that can support the weight of the
monitor in order to prevent the monitor from falling. Fasten
the cord or chain to the monitor using the provided clamps
and M4 screws.
490 mm
Screw Holes
Cord or chain
Clamp
Screw (M4)
Before attaching the LCD monitor to the wall, make sure
that the wall can support the weight of the monitor.
Be sure to remove the cord or chain from the wall before
moving the LCD monitor.
Allow adequate ventilation or provide air conditioning around
the monitor, so that heat can properly dissipate away from
the unit and mounting apparatus; especially when you use
monitors in multiple screen.
English-6
Parts Name and Functions
Control Panel
POWER button
Switches the power on/off. See also page 16.
MUTE button
Switches the audio mute ON/OFF.
INPUT button
Acts as SET button within OSD menu. (Toggle switches
between [DVI], [DPORT], [VGA], [RGB/HV], [HDMI],
[DVD/HD1], [DVD/HD2], [SCART], [VIDEO1], [VIDEO2],
[S-VIDEO] or [TV]*). These are available input only,
shown as their factory preset name.
PLUS button
Acts as (+) button to increase the adjustment with OSD menu.
Increases the audio output level when the OSD menu is
turned off.
English
EXIT button
Activates the OSD menu when the OSD menu is turned-off.
Acts as EXIT button within the OSD to move to previous
menu.
Remote control sensor and Power Indicator
Receives the signal from the remote control (when using the
wireless remote control). See also page 11.
Glows green when the LCD monitor is in active mode*.
Glows red when the LCD is in POWER OFF (ECO standby)
mode. Glows amber when the LCD is in POWER OFF
(standby) mode. Blinks amber when the monitor is in Power
Save Mode. Green and Amber blink alternately while in
Power Standby mode with the “SCHEDULE SETTINGS”
function enabled. When a component failure is detected
within the monitor, the indicator will blink red.
* If “OFF” is selected in “POWER INDICATOR” (see page 23),
LED will not light when the LCD monitor is in active mode.
MINUS button
Acts as (-) button to decrease the adjustment with OSD menu.
Decreases the audio output level when the OSD menu is
turned off.
UP button
Activates the OSD menu when the OSD menu is turned-off.
Acts as
adjustment items within OSD menu.
Activates the OSD menu when the OSD menu is turned-off.
Acts as button to move the highlighted area down to
select adjustment items within OSD menu.
button to move the highlighted area up to select
DOWN button
AMBIENT LIGHT SENSOR
Detects the level of ambient light, allowing the monitor to
make automatic adjustments to the brightness setting,
resulting in a more comfortable viewing experience. Do not
cover this sensor. See page 18.
Control Key Lock Mode
This control completely locks out access to all Control Key
functions. To activate the control key lock function, press both
and and hold down simultaneously for more than
3 seconds. To resume user mode, press both and and
hold simultaneously for more than 3 seconds.
*: The product you purchased may not have this feature.
English-7
Terminal Panel
In
In
Main Power Switch
On/Off switch to turn main power ON/OFF.
AC IN connector
Connects with the supplied power cord.
DISPLAYPORT connector
To input DisplayPort signals.
HDMI connector
To input digital HDMI signals.
DVI IN (DVI-D)
To input digital RGB signals from a computer or HDTV
device having a digital RGB output.
* This connector does not support analog input.
VGA IN (mini D-Sub 15 pin)
To input analog RGB signals from a personal computer or
from other RGB equipment.
RGB/HV IN [R, G, B, H, V] (BNC)
To input analog RGB signals or signals from other RGB
equipment.
This is also to connect equipment such as a DVD player,
HDTV device and Set-Top-Box. A Sync-on-Green signal can
be connected to the G connector.
This input can be used with an RGB, DVD/HD or Video
source. Please select signal type in TERMINAL SETTING.
RGB/HVRGBHV
DVD/HD2PrYPb
VIDEO2
RGBHV
VIDEO
Out
Out
VIDEO IN connector (BNC and RCA)
To input a composite video signal. BNC and RCA connectors
are not available at the same time (Use only one input).
VIDEO OUT connector (BNC)
To output the composite video signal from the VIDEO IN
connector.
DVD/HD connector (RCA)
Connecting equipment such as a DVD player, HDTV device,
or Set-Top-Box.
S-VIDEO IN connector (Mini DIN 4 pin)
To input the S-video (Y/C separate signal).
AUDIO IN 1, 2, 3
To input audio signal from external equipment such as a
computer, VCR or DVD player.
AUDIO OUT
To output the audio signal from the AUDIO IN 1, 2, 3,
DPORT, HDMI, and TV jack to an external device
(stereo receiver, amplifier, etc.).
EXTERNAL CONTROL (D-Sub 9 pin)
IN connector: Connect RS-232C input from external
equipment such as a PC in order to control RS-232C
functions.
OUT connector: Connect RS-232C output. To connect
multiple MultiSync monitors via RS-232C daisy Chain.
LAN port (RJ-45)
LAN connection. See page 30.
RGB/HV OUT (BNC)
To output the signal from the RGB/HV IN connector or
VGA IN connector which is on screen to an input on a
separate device. If both signals are not on screen, outputs
the signal from RGB/HV IN connector.
REMOTE IN/OUT
Use the optional wired remote control by connecting it to
your monitor.
NOTE: When you use Remote IN/OUT, IR CONTROL in
OSD menu should be NORMAL.
English-8
Kensington Lock
For security and theft prevention.
EXTERNAL SPEAKER TERMINAL
To output the audio signal from AUDIO 1, 2, 3, DPORT,
HDMI and TV jack.
Note: This speaker terminal is for 15W + 15W (8 ohm)
speaker.
Option board slot
Slot for board accessories. Please contact your supplier for
detailed information.
English
English-9
Wireless Remote Control
SOUND button
Artificial surround sound.
KEYPAD
Press buttons to set and change passwords, change
channel and set REMOTE ID.
ENT button*
DISPLAY button
Turns on/off the information OSD. See page 18.
MENU button
Turns on/off the menu mode.
AUTO SETUP button
Enters auto setup menu. See page 20.
EXIT button
Returns to previous menu within OSD menu.
UP/DOWN button
Acts as
button to move the highlighted area up or
down to select adjustment items within OSD menu.
Small screen which adjusted “PIP” mode moves up or down.
POWER button
Switches the power on/standby.
INPUT button
Selects input signal.
DVI: DVI
DISPLAYPORT: DPORT
VGA: VGA
RGB/HV: RGB/HV
HDMI: HDMI
DVD/HD: DVD/HD1, DVD/HD2, SCART
VIDEO: VIDEO1, VIDEO2
S-VIDEO: S-VIDEO
OPTION: Depends on your connection
HIGHBRIGHT: for moving images such as DVD.
STANDARD: for images.
sRGB: for text based images.
CINEMA: for movies.
AMBIENT1 and AMBIENT2: activate auto dimming
function. See page 18.