NEC M431, M491, M551, M651 Users Guide

User’s Manual

Large Format Display

MultiSync M431

MultiSync M491

MultiSync M551

MultiSync M651

MODEL: M431, M491, M551, M651

Please find your model name on the label on the rear side of the monitor.

Table of Contents

Important Information ................................................. 2

Recommended Use & Maintenance ........................... 8

Recommended Use .................................................... 8

Maintenance ............................................................... 8

Chapter 1 Installation

Setup Overview ........................................................ 10

Mounting (for Customer) ........................................... 13

Mounting (for Trained Installers) ............................... 14

Mounting Location .................................................... 15

Orientation ................................................................ 15

Ventilation Requirements .......................................... 16

Mounting on Ceilings ................................................ 16

Attaching Mounting Accessories .............................. 17

Installing and Removing the

Optional Table Top Stand .......................................... 18

Chapter 2 Parts Names and Functions

Control Panel ............................................................ 21

Terminal Panel .......................................................... 22

Wireless Remote Control .......................................... 24

Chapter 3 Connections

Wiring Diagram ......................................................... 27

Connecting to a Personal Computer ......................... 28

Connecting to a Computer with HDMI ...................... 28

Connecting a Computer with DisplayPort ................. 28

Connecting to a Media Device with HDMI ................ 29

Connecting to audio equipment with ARC function .. 29

Chapter 4 Basic Operation

Power ON and OFF Modes ...................................... 34

Operating Range for the Remote Control ................. 35

Using Power Management ....................................... 35

Showing the Information OSD .................................. 36

Switching Between Picture Modes ........................... 36

HDMI-CEC (Consumer Electronics Control) ............ 29

HDMI-CEC Command .............................................. 30

Internal Video Sources ............................................. 31

Media Player ............................................................. 31

Option Board for the Monitor .................................... 31

Connecting a USB Device ........................................ 32

Setting the Aspect Ratio ........................................... 37

OSD (On-Screen Display) Controls .......................... 38

Using the Media Player Menu ................................... 40

Media Player Menu ................................................... 40

Chapter 5 Advanced Operation

Creating a Power Schedule ...................................... 44

Using Picture Modes ................................................ 45

Setting Security and Locking the Monitor Controls ... 46

Chapter 6 External Control

Controlling the Monitor via RS-232C ........................ 52

Controlling the Monitor via LAN ................................ 53

HTTP Browser .......................................................... 54

Chapter 7 Troubleshooting

Screen Image and Video Signal Issues .................... 63

No picture ................................................................. 63

Image persistence .................................................... 63

The image is blinking ................................................ 63

The image is unstable, unfocused

or swimming is apparent ........................................... 64

Password Security .................................................... 46

Locking the Button Controls ..................................... 48

Setting the Remote Control ID Function ................... 50

Commands ............................................................... 60

Proof of Play ............................................................. 61

The SCHEDULE/OFF TIMER

function is not working properly ................................ 64

Snowy picture, poor Sound in TV ............................. 65

The USB hub does not operate ................................ 65

Interference in TV ..................................................... 65

RS-232C or LAN control is not available .................. 65

The image is not properly reproduced ...................... 64

Selected resolution is not displayed properly ........... 64

Video contrast is either too high or too low ............... 64

Hardware Issues ....................................................... 64

⏻ button does not respond ...................................... 64

No sound .................................................................. 64

The remote control is not functioning ....................... 64

Chapter 8 Specifications

Compatible Signal List .............................................. 67

M431 ......................................................................... 68

M491 ......................................................................... 69

The monitor goes into standby automatically ........... 65

Media player function does not

recognize the USB storage device ........................... 65

Power Indicator Patterns .......................................... 65

LED on the monitor is not lit

(no blue or red color can be seen) ............................ 65

LED colors, except for blue,

are blinking or glowing .............................................. 65

M551 ......................................................................... 70

M651 ......................................................................... 71

Appendix A Trademark and Software License

Appendix B External Resources

Appendix C OSD Controls List

INPUT ....................................................................... 76

PICTURE .................................................................. 78

AUDIO ...................................................................... 81

SCHEDULE .............................................................. 82

SLOT ........................................................................ 83

NETWORK ............................................................... 85

PROTECT ................................................................. 86

SYSTEM ................................................................... 89

Appendix D Manufacturer’s Recycling and Energy Information

Disposing of your old NEC product .......................... 92 Energy Saving .......................................................... 92

Cable Information

CAUTION:  Use the provided specified cables with this product so as not to interfere with radio and television reception.

For USB, please use a shielded signal cable with ferrite core.
For HDMI and DisplayPor t, please use a shielded signal cable.
Use of other cables and adapters may cause interference with radio and television reception.

FCC Information

WARNING: The Federal Communications Commission does not allow any modifications or changes to the unit EXCEPT those specified by NEC Display

Solutions of America, Inc. in this manual. Failure to comply with this government regulation could void your right to operate this equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy, and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

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.

SUPPLIER’S DECLARATION OF CONFORMITY

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions. (1) This device may not cause harmful
interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

U.S. Responsible Party: NEC Display Solutions of America, Inc.
Address: 3250 Lacey Rd, Ste 500
Downers Grove, IL 60515
Tel. No.: [phone]

Type of Product: Display Monitor

Equipment Classification: Class B Peripheral

Model: M431, M491, M551, M651

• The intended primary use of this product is as an Information Technical Equipment in an office or domestic environment.

• The product is intended to be connected to a computer and is not intended for the display of television broadcast signals.

NOTE: (1) The contents of this manual may not be reprinted in part or whole without permission.

(2) The contents of this manual are subject to change without notice.
(3) Great care has been taken in the preparation of this manual; however, should you notice any questionable points, errors or omissions,
please contact us.
(4) The image shown in this manual is indicative only. If there is inconsistency between the image and the actual product, the actual product
shall govern.
(5) Notwithstanding articles (3) and (4), NEC will not be responsible for any claims on loss of profit or other matters deemed to result from using
this device.
(6) This manual is commonly provided to all regions so they may contain descriptions that are pertinent for other countries.

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Important Information

Safety Precautions and Maintenance

FOR OPTIMUM PERFORMANCE, PLEASE NOTE

THE FOLLOWING WHEN SETTING UP AND

USING THE LCD COLOR MONITOR:

About the Symbols

To ensure safe and proper use of the product, this manual uses a number of symbols to prevent injury to you and others as well
as damage to property. The symbols and their meanings are described below. Be sure to understand them thoroughly before
reading this manual.

WARNING

CAUTION

Examples of symbols

UNPLUG THE

1

POWER CORD

2

3

Failing to heed this symbol and handling the product incorrectly could result in accidents leading to
major injury or death.

Failing to heed this symbol and handling the product incorrectly could result in personal injury or
damage to surrounding property.

Indicates a warning or caution.

This symbol indicates you should be careful of electric shocks.

Indicates a prohibited action.

This symbol indicates something that must be prohibited.

Indicates a mandatory action.

This symbol indicates that the power cord should be unplugged from the power outlet.

WARNING

Unplug the power cord if the product malfunctions.

Should the product emit smoke or strange odors or sounds, or if the product has been dropped or
the cabinet broken, turn off the product’s power, then unplug the power cord from the power outlet.
Failure to do so could not only lead to fire or electric shock, it could also result in vision impairment.
Contact your dealer for repairs.

Never try to repair the product on your own. Doing so is dangerous.

Do not open or remove the product’s cabinet.

Do not disassemble the product.

There are high voltage areas in the product. Opening or removing product covers and modifying the
product may expose you to electric shock, fire, or other risks.

Refer all servicing to qualified service personnel.

Do not use the product if it has structural damage.

If you notice any structural damage such as cracks or unnatural wobbling, please refer servicing
to qualified service personnel. If the product is used in this condition, the product may fall or cause
personal injury.

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WARNING

Handle the power cord with care. Damaging the cord could lead to fire or electric shock.

• Do not place heavy objects on the cord.

• Do not place the cord under the product.

4

5

6

7

8

• Do not cover the cord with a rug, etc.

• Do not scratch or modify the cord.

• Do not bend, twist or pull the cord with excessive force.

• Do not apply heat to the cord.

Should the cord be damaged (exposed core wires, broken wires, etc.), ask your dealer to replace it.

Do not touch the power plug if you hear thunder. Doing so could result in electric shock.

Please use the power cord provided with this product in accordance with the power cord table.

If a power cord is not supplied with this product, please contact NEC. For all other cases, please
use the power cord with the plug style that matches the power socket where the product is located.
The compatible power cord corresponds to the AC voltage of the power outlet and has been
approved by, and complies with, the safety standards in the country of purchase.

For proper installation it is strongly recommended to use a trained service person.

Failure to follow the standard installation procedures could result in damage to the product or injury
to the user or installer.

Please install the product in accordance with the following information.

This product cannot be used or installed without the table top stand or other mounting accessory for
support.

• M491/M551/M651: DO NOT use this product on the floor with the table top stand. Please use this
product on a table or with a mounting accessory for support.

When transporting, moving, or installing the product, please use as many people as necessary to be
able to lift the product without causing personal injury or damage to the product.

We recommend two or more people for the M431/M491/M551 and four or more people for the M651.

Please refer to the instructions included with the optional mounting equipment for detailed
information about attaching or removing.

Do not cover the vent on the product. Improper installation of the product may result in damage to
the product, an electric shock or fire.

Do not install the product in the locations below:

• Poorly ventilated spaces.

• Near a radiator, other heat sources, or in direct sunshine.

• Continual vibration areas.

• Humid, dusty, steamy, or oily areas.

• Outdoors.

• High-temperature environment where humidity changes rapidly and condensation is likely to
occur.

• A ceiling or wall that is not strong enough to support the product and mounting accessories.

Do not mount the product upside down.

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WARNING

Prevent tipping and falling for earthquakes or other shocks.

To prevent personal injury or damage to the product caused by tipping over due to earthquakes or
other shocks, make sure to install the product in a stable location and take measures to prevent
falling.

The measures to prevent falling and tipping are intended for reducing the risk of injury, but may not
guarantee the effectiveness against all earthquakes.

The product may tip causing personal injury.

• When using the product with the optional table top stand, fasten the product to a wall using a
cord or chain that can support the weight of the product in order to prevent the product from
falling. Fasten the cord or chain to the product using the clamps and screws provided with the
product or the table top stand.
Depending on the table top stand, the stand has the structure for preventing tipping.
Please refer to the table top stand manual.

• Be sure to remove the cord or chain from the wall before moving the product to prevent personal
injury or damage to the product.

The product may fall causing personal injury.

• Do not attempt to hang the product using an installation safety wire.

• Please install the product in an area on the wall or ceiling strong enough to support the weight of
the product.

• Prepare the product using mounting accessories, such as hook, eyebolt, or mounting parts, and
then secure the product with a safety wire. The safety wire must not be tight.

9

• Please make sure the mounting accessories are strong enough to support the product weight
and size before installing it.

Stability Hazard.

The product may fall, causing serious personal injury or death. To prevent injury, this product must be
securely attached to the floor/wall in accordance with the installation instructions.

Many injuries, particularly to children, can be avoided by taking simple precautions such as:

• ALWAYS use stands or installation methods recommended by the manufacturer of the product
set.

• ALWAYS use furniture that can safely support the product.

• ALWAYS ensure the product is not overhanging the edge of the supporting furniture.

• ALWAYS educate children about the dangers of climbing on furniture to reach the product or its
controls.

• ALWAYS route cords and cables connected to your product so they cannot be tripped over, pulled
or grabbed.

• NEVER place a product in an unstable location.

• NEVER place the product on tall furniture (for example, cupboards or bookcases) without
anchoring both the furniture and the product to a suitable support.

• NEVER place the product on cloth or other materials that may be located between the product
and supporting furniture.

• NEVER place items that might tempt children to climb, such as toys and remote controls, on the
top of the product or furniture on which the product is placed.

If the existing product is going to be retained and relocated, the same considerations as above
should be applied.

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WARNING

10

11

12

13

14

Do not place this product on a sloping or unstable cart, stand or table. Doing so could lead to falling
or tipping and cause personal injury.

Do not insert objects of any kind into the cabinet slots. It may cause electric shock, fire, or product
failure. Keep objects away from children and babies.

Do not spill any liquids into the cabinet or use your product near water.

Immediately turn off the power and unplug your product from the wall outlet, then refer servicing
to qualified service personnel. It may cause an electric shock or start a fire.

Do not use flammable gas sprays to remove dust when cleaning the product. Doing so could lead to
a fire.

Securely fasten the Option Board.

Ensure the Option Board is securely fastened using the original screws to prevent the Option Board
from falling out the product. A falling Option Board may expose you to danger.

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CAUTION

Handling the power cord.

Handle the power cord with care. Damaging the cord could lead to fire or electric shock.

• When connecting the power cord to the product’s AC IN terminal, make sure the connector is
fully and firmly inserted.

• Fasten the power cord to the product by attaching the screw and clamp to prevent loose
connection. (Recommended Fasten Force: 120 - 190 N•cm).

• Do not connect or disconnect the power cord with wet hands.

• When connecting or disconnecting the power cord, pull the power cord out by holding onto its

1

2

plug.

• When cleaning the product, for safety purposes, unplug the power cord from the power outlet
beforehand. Regularly dust off the power cord by using a soft dry cloth.

• Before moving the product, make sure the product power is off, then unplug the power cord
from the power outlet and check that all cables connecting the product to other devices are
disconnected.

• When you are not planning to use the product for an extended period of time, always unplug the
power cord from the power outlet.

• This equipment is designed to be used in the condition of the power cord connected to the earth.
If the power cord is not connected to the earth, it may cause electric shock. Please make sure the
power cord is earthed properly.

Do not bind the power cord and the USB cable. It may trap heat and cause a fire.

Do not connect to a LAN with excessive voltage.

3

4

5

6

7

When using a LAN cable, do not connect to a peripheral device with wiring that might have excessive
voltage. Excessive voltage on the LAN port may cause an electric shock.

Do not climb on the table where the product is installed. Do not install the product on a wheeled table
if the wheels on the table have not been properly locked. The product may fall, causing damage to
the product or personal injury.

Installation, removal, and height adjustment of the optional table top stand.

• When installing the table top stand, handle the unit with care to avoid pinching your fingers.

• Installing the product at the wrong height can cause tipping.
Please install your product at proper height to prevent personal injury or damage to the product.

Do not push or climb on the product. Do not grab or hang onto the product.

The product may fall, causing damage to the product or personal injury.

Do not impact the LCD panel surface, it can cause serious damage to the product or personal injury.

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10

11

CAUTION

Incorrect usage of batteries can result in leaks or bursting.

• Insert batteries matching the (+) and (–) signs on each battery to the (+) and (–) signs of the
battery compartment.

• Do not mix battery brands.

• Do not combine new and old batteries. This can shorten battery life or cause liquid leakage of
batteries.

8

9

• Remove dead batteries immediately to prevent battery acid from leaking into the battery
compartment.

• Do not touch exposed battery acid, it may injure your skin.

• Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting of a battery, can
result in an explosion.

• Leaving a battery in an extremely high temperature surrounding environment, or a battery subject
to extremely low air pressure, can result in an explosion or the leakage of flammable liquid or gas.

• Contact your dealer or local authorities when disposing of batteries.

Suitable for entertainment purposes at controlled luminous environments, to avoid disturbing
reflections from the screen.

When running the cooling fan continuously, we recommend wiping clean the ventilation holes a
minimum of once a month. Failure to do so could lead to fire or electric shock or damage to the
product.

To ensure the product’s reliability, please clean the ventilation holes at the rear side of the cabinet
at least once a year to remove dirt and dust. Failure to do so could lead to fire or electric shock or
damage to the product.

Power Cord Table

Plug Type North America

Plug Shape

Region U.S.A./Canada EU U.K. China Japan

Voltage 120* 230 230 220 100

* Please use this power cord under 125 V power supply.

European

Continental

U.K. Chinese Japanese

NOTE:  This product can only be serviced in the country where it was purchased.

Connecting to a TV*

1

• 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.

*1: The product you purchased may not have this feature.

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Recommended Use & Maintenance

Recommended Use

Ergonomics

To realize the maximum ergonomic benefits, we recommend the following:

• For optimum performance of the monitor, allow 20 minutes for warming up. Avoid reproduction of still patterns on the monitor
for long periods of time to avoid image persistence (after image effects).

• 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.

• Adjust the monitor’s brightness, contrast and sharpness controls to enhance readability.

• Get regular eye checkups.

• Use the preset Size and Position controls with standard input signals.

• Use the preset color settings.

• Use non-interlaced signals.

• Do not view the primary color blue on a dark background. It is difficult to see and may cause eye fatigue due to insufficient
contrast.

Maintenance

Cleaning the LCD Screen

• When the LCD screen is dusty, please gently wipe with a soft cloth.

• Clean the LCD screen surface with a lint-free, non-abrasive cloth. Avoid using any cleaning solution or glass cleaner!

• Please do not rub the LCD screen with a hard or abrasive material.

• Please do not apply pressure to the LCD screen surface.

• Please do not use OA cleaner as it will cause deterioration or discoloration on the LCD screen 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.

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Chapter 1 Installation

This Chapter Includes:

> “Setup Overview” on page 10

> “Mounting (for Customer)” on page 13

> “Prevent Tipping” on page 13

> “Changing the Logo Ornament Position” on page 13

> “Mounting (for Trained Installers)” on page 14

> “Mounting Location” on page 15

> “Orientation” on page 15

> “Ventilation Requirements” on page 16

> “Mounting on Ceilings” on page 16

> “Attaching Mounting Accessories” on page 17

> “Installing and Removing the Optional Table Top Stand” on page 18

NOTE: 

For box contents, please refer to the printed contents sheet provided in the box.

Product warranty does not cover damage caused by improper installation. Failure to follow these recommendations could result
in voiding the warranty.

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Setup Overview

1. Determine the installation location

WARNING: Please refer to “WARNING 7”, “WARNING 8” and “WARNING 9”.

NOTE: To avoid scratching the LCD panel, always place a soft cloth, such as a blanket that is larger than the monitor’s

screen area, on the table before laying the monitor face down when installing the monitor stand or mounting
accessories.

2. Install the remote control batteries

The remote control is powered by two 1.5 V AAA batteries.

To install or replace batteries:

NEC recommends the following battery use:

CAUTION: Please refer to “CAUTION 8”.

NOTE: If you do not intend to use the remote control for a long period of time, remove the batteries.

3. Connect external equipment (see page 26)

• To protect the external equipment, turn off the main power before making connections.

• Refer to the user’s manual of your equipment for further information.

NOTE: Do not connect/disconnect cables when turning on the monitor or other external equipment as this may result in

loss of image.

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4. Connect the supplied power cord

WARNING: Please refer to the “Important Information” section of this user’s manual for proper selection of an

AC power cord.

CAUTION: Please refer to “CAUTION 1”.

NOTE: • The monitor should be installed close to an easily accessible power outlet.

• Please make sure that enough power is supplied to the monitor. Please refer to the “Power Supply”

in the specification (See “M431” on page 68, “M491” on page 69, “M551” on page 70 and

“M651” on page 71).

Screw

Clamp

5. Cable information

CAUTION: Use the provided specified cables with this product so as not to interfere with radio and television reception.

For USB, please use a shielded signal cable with ferrite core.
For HDMI and DisplayPort, please use a shielded signal cable.
Use of other cables and adapters may cause interference with radio and television reception.

6. Turn on the power for the monitor and the external equipment

Switch on the monitor power first.

7. Operate the attached external equipment

Select the input source for the attached equipment to show the image signal on screen.

NOTE: Under the conditions below, DDC communication is disabled.

• Turning off the monitor’s main power.

• When [MODE] in [POWER SAVING SETTINGS] has been set to [LOW POWER] in the OSD menu, and the

monitor is turned off or shift to the power saving mode.

8. Adjust the sound

Make volume adjustments when required.

9. Adjust the picture settings (see page 78)

If necessary, make adjustments to the backlight, colors, contrast, and image position in the OSD PICTURE menu.

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10. For long-term use

The backlight used for this monitor has a limited life and its brightness decreases with the usage time.

Also, if the same still image is shown for a long time, “Image Persistence” may occur. “Image Persistence” is a phenomenon
in which the image of an LCD remains visible after the device has been turned off.

The “Image Persistence” is gradually eliminated by changing the screen, but if the same screen is shown for too long, the
“Image Persistence” will not disappear.

To avoid shortening this monitor’s lifetime, please note the following:

• Turn off the main power of this monitor when not in use.

• Use the ⏻ button on the main unit or the STANDBY button on the remote control to put the unit in standby mode.

• Use [POWER SAVE SETTINGS] in the [PROTECT] OSD menu. When there is no input signal the monitor will

automatically switch to power save mode.

• If you cover the panel surface of the main unit with a protective cover made of glass or acrylic, the panel surface will be

sealed and the internal temperature will rise.
Use the screen saver, the computer’s power management function, or reduce the monitor’s brightness to prevent the
internal temperature from rising.

• To reduce the load on the LCD panel, use [SCREEN SAVER] in the [PROTECT] OSD menu.

• Use [SCHEDULE] in the OSD menu to automatically power the monitor on or stand by at any time.

NOTE: When using the schedule function, be sure to set [DATE & TIME] in the [SYSTEM] OSD menu.

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Mounting (for Customer)

WARNING:  Please refer to “WARNING 7”.

Please contact your supplier as they may be able to provide a list of qualified installation professionals. Mounting on a wall or
ceiling and hiring a technician is the customer’s responsibility.

Maintenance

• Periodically check for loose screws, gaps, distortions, or other problems that may occur with the mounting equipment.

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.

WARNING: Please refer to “WARNING 8”.

Prevent Tipping

WARNING:  Please refer to “WARNING 7” and “WARNING 9”.

• Please refer to the table top stand manual of ST-401 and ST-43M for “structure of Prevent Tipping”.

M651

Cord or chain

Before attaching the monitor to the wall, make sure that the wall can support the weight of the monitor.

Changing the Logo Ornament Position

When using the monitor in the portrait position, the logo
ornament position can be changed.

Removing the logo ornament: unscrew the installed screw
then take off the logo ornament.

Attaching the logo ornament: adjust the protrusions inside of
the logo ornament into the protrusion holes on the bezel. Make
sure the hole for the screw on the logo ornament and the hole
for the screw on the bezel are aligned. Install the logo ornament
with the screw which is used for installing the logo ornament.
(Recommended Fasten Force: 30-40 N•cm).

NOTE:  Do not use any other screw to install the logo ornament.

Protrusion

Screw hole

Protrusion holes

Screw hole

Protrusion

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Inside of NEC logo ornament

Mounting (for Trained Installers)

washers

WARNING:  Please refer to “WARNING 9”.

Carefully inspect the location where the unit is to be mounted. Not all walls or ceilings are capable of supporting the weight of
the unit. The weight of this monitor is provided in the specifications (see “M431” on page 68, “M491” on page 69, “M551” on

page 70 and “M651” on page 71). Product warranty does not cover damage caused by improper installation, re-modeling,

or natural disasters. Failure to comply with these recommendations could result in voiding the warranty.

To ensure safe installation, use two or more brackets to mount the unit. Mount the unit to at least two points on the installation
location.

WARNING:  Please refer to the “Important Information” section.

Please note the following when mounting on a wall or ceiling:

• When using mounting accessories other than those that are NEC approved, they must comply with the VESA-compatible
(FDMlv1) mounting method.

• NEC recommends mounting interfaces that comply with UL1678 standard in North America.

• Prior to mounting, inspect the installation location to ensure that it is strong enough to
support the weight of the unit so that the unit will be safe from harm.

• For detailed information, refer to the instructions included with the mounting equipment.

NEC strongly recommends using the screws as shown below.
If using screws longer than below mentioned, check the depth of the hole.

Screw Size

(A) (B)

M431

M6 10-12 mm

M491

M551

M651 M8 16-18 mm ≤ Ø 12 mm 5 mm 950-1600 N•cm

+ thickness of bracket and

washer in length

Bracket Hole

(C)

≤ Ø 8.5 mm 4.5 mm 390-670 N•cm

No Thread

(D)

Recommended

Fasten Force

Unit

No thread

C

D

B

Gap

Mounting
Bracket

Washers

A

Thickness of
bracket and

NOTE:  When used in a video wall configuration for a long time, slight expansion of the monitors may happen due to

temperature changes. It is recommended that a gap of over one millimeter is kept between adjacent monitor edges.

> 1 mm

> 1 mm

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Installing a safety wire

WARNING:  Please refer to “WARNING 9”.

CAUTION:  Please refer to “CAUTION 7”.

NOTE: When installing, do not apply pressure to the LCD panel or excessive force to any part of the monitor by pushing or

leaning on it. This may cause the monitor to become distorted or damaged.

Handles for safety wire

(Fasten Force: 120 - 190 N•cm).

Safety wire for landscape position

Safety wire for portrait

position (M651 only)

Mounting Location

WARNING:  Please refer to “WARNING 8”.

NOTE: Allow for adequate ventilation or provide air conditioning around the monitor, so that heat can properly dissipate away

from the monitor and from the mounting equipment.

Orientation

• When using the monitor in the portrait position, it should be rotated counterclockwise so that the right side is moved to the
top and the left side is moved to the bottom. Improper ventilation may shorten the lifetime of the monitor.

Power Indicator

WARNING:  Please refer to “WARNING 8”.

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Ventilation Requirements

≥100 mm

≥100 mm

≥30 mm

≥100 mm

≥100 mm

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.

<40 °C

NOTE:  • Allow adequate ventilation or provide air conditioning around the monitor, so that heat can properly dissipate away

from the unit and the mounting equipment; especially when you use monitors in a multiple screen configuration.

• This monitor has internal temperature sensors.

 If the monitor overheats, a “Caution” warning appears. If the “Caution” warning appears, stop using the unit, turn off

the power and allow it to cool.

 If the monitor is used in an enclosed area or if the LCD panel is covered with a protective screen, and the

temperature is higher than the normal operating temperature, please turn the cooling fan to [ON] within the
[FAN CONTROL] menu within the OSD (see page 86).

Mounting on Ceilings

WARNING:  Please refer to “WARNING 8” and “WARNING 9”.

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Attaching Mounting Accessories

The monitor is designed for use with the VESA mounting system. Be careful to avoid tipping the monitor when attaching
accessories.

VESA Mounting Interface M6 (M431/M491/M551), M8 (M651)

300 mm (M431/M491/M551)
400 mm (M651)

300 mm (M431/M491/M551)

400 mm (M651)

Mounting accessories can be attached with the monitor in the face down position. To avoid scratching the LCD panel, always
place a soft cloth, such as a blanket that is larger than the monitor’s screen area, on the table before laying the monitor face
down. Make sure there is nothing on the table that can damage the monitor.

When using mounting accessories other than those that are NEC compliant and approved, they must comply with the VESA Flat
Display Mounting Interface Standard (FDMI).

NOTE:  Prior to installation, place the monitor face down on a flat even surface that is larger than the monitor screen.

Use a sturdy table that can easily support the weight of the monitor.

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Installing and Removing the Optional Table Top Stand

WARNING:  Please refer to “WARNING 8”.

CAUTION:  Please refer to “CAUTION 5”.

For installation, follow the instructions included with the stand or mounting equipment. Use only those devices recommended by
the manufacturer.

NOTE:  • M431, M491 and M551 use the ST-401 or ST-43M. M651 use the ST-65M.

• For the ST-401 and ST-43M, ONLY use screws which are included with the optional table top stand.

For the ST-65M, ONLY use thumbscrews and attach the stand holders which are included with the optional table top
stand. Install the stand so the long end of the feet face forward.

• The monitor can only be used in the landscape orientation with the tabletop stand.

M431
M491

ST-401 or ST-43M (screws are included)

M551
M651 ST-65M (thumbscrews, screws, and stand holders are included)

M651

Optional stand holder

Optional table top stand

M431/M491/M551

Table

Soft cloth

300 mm

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Height adjustment (M551)

1. The lines on the stand pole are indicators of the height adjustment (Figure 1). Please adjust the pipe to the lines.

Pipe

M551 High/Low

M491

M431

Adjust the pipe to a line.

Figure 1

2. Please install the stand pole and the pipe with included screws. Please screw the two screw holes at the pipe (Figure 2).

Pipe

CAUTION:  Please refer to “CAUTION 5”.

Stand pole

Figure 2

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Chapter 2 Parts Names and Functions

This Chapter Includes:

> “Control Panel” on page 21

> “Terminal Panel” on page 22

> “Wireless Remote Control” on page 24

English−20

Control Panel

Monitor in

Landscape position

Up

RightLeft

Down

Monitor in

Portrait position

Up

RightLeft

Down

A ⏻ Button (power button)

Switches between power on and standby. See page 34.

B MENU/EXIT Button

Opens the OSD menu when the OSD menu is closed.

Acts as a back button within the OSD menu to move to the
previous OSD menu.

Acts as an exit button to close the OSD menu when on the
main menu.

C 5-Direction-Key/SET Button*

v/w: Navigates to the left or right through the OSD Control
menu.
Move the LEFT/RIGHT key left or right to increase or
decrease the adjustment.
You can adjust the VOLUME directly by moving the LEFT/
RIGHT key while the OSD menu is closed.

s/r: Navigates up or down through the OSD Control menu.

SET: Acts as a set button when making a selection when the
OSD menu is open.

*1: The v, w, r and s functions change according to the monitor orientation

(landscape/portrait).

1

D INPUT Button

INPUT: Cycles through the available inputs when the OSD
menu is closed.

[DisplayPort], [HDMI1], [HDMI2], [Media Player],
[OPTION]*1, [COMPUTE MODULE]*2. These are
available inputs only, shown as their factory preset
name.

*1: This function depends on which Option Board is installed in the monitor.

*2: This input is available when the optional Raspberry Pi Compute Module

Interface Board and Raspberry Pi Compute Module are installed.
See page 73.

E Remote Control Sensor, Ambient Light Sensor, and

Power Indicator

Remote Control Sensor: Receives the signal from the

remote control (when using the wireless remote control).
See page 35.

Ambient light sensor: Detects the level of ambient light,
allowing the monitor to make automatic adjustments to the
backlight setting, resulting in a more comfortable viewing
experience. Do not cover this sensor. See page 80.

Power Indicator:

• Glows blue when the monitor is in active mode*1.

• Green and Amber blink alternately when the
[SCHEDULE INFORMATION] function is enabled*1.

• When a component failure is detected within the monitor,
the indicator will blink red or blink a combination of red
and blue.

• Please refer to the Power ON and OFF Modes table on

page 34.

*1: If [OFF] is selected in the [POWER INDICATOR] the LED will not glow

when the monitor is in active mode. See page 90.

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Terminal Panel

USB

DisplayPort IN

HDMI IN

HDMI IN (ARC)

LAN IN

AUDIO OUT

REMOTE

HDMI

A AC IN Connector

Connects with the supplied power cord.

B Main Power Switch

On/Off switch to turn main power ON/OFF.

C USB Port

USB storage device reader for use with the Media Player.

Power supply for USB devices.

For the USB port information, please see “Connecting a

USB Device” on page 32.

D DisplayPort IN

DisplayPort signals input.

E HDMI IN (HDMI1 (ARC)/HDMI2)

HDMI signals input.

NOTE:  • HDMI1 terminal also supports ARC (Audio

Return Channel) for audio output.

• ARC sends the monitor’s sound to audio

equipment with an HDMI1 ARC connector.

• Use the included ARC-supported HDMI cable.

The audio equipment will output the monitor’s
audio.

• The audio equipment can be controlled with the

included remote control.

F LAN Port IN (RJ-45)

Connect to LAN in order to manage and control the monitor
over the network. See page 53.

G AUDIO OUT

Audio signal output from DisplayPort and HDMI to an
external device (stereo receiver, amplifier, etc.).

NOTE: This connector is not a headphone terminal.

H REMOTE

Use the optional sensor unit by connecting it to your monitor.

NOTE: Do not use this connector unless specified.

I Option Board Slot

Slot for installation of an Intel® Smart Display Module
(Intel® SDM).

NOTE: Please contact your supplier for a list of compatible

Option Boards.

J Raspberry Pi Compute Module Slot

Slot for installing a Raspberry Pi Compute Module Interface
Board and Raspberry Pi Compute Module. See page 73.

CAUTION:  Installation must be performed by a

qualified technician. Do not attempt to
install a Compute Module Interface Board
and Raspberry Pi Compute Module by
yourself.

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K RS-232C IN (D-Sub 9-pin)

Connect RS-232C input from external equipment, such
as a computer, in order to control RS-232C functions.
See page 52.

L Internal Speaker

M Handle

Two for M431, M491, and M551.
Four for M651.

N Security Slot

Security and theft protection lock slot compatible with
Kensington security cables/equipment.

NOTE: For products, visit Kensington’s website.

O Label

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Wireless Remote Control

E ENT Button

Makes selections in the Media Player settings.
See page 40.

Some buttons are used for CEC (Consumer Electronics
Control).

F DISPLAY Button

Shows/Hides the information OSD. See page 38.

Unlocks the remote control’s buttons if they have been
locked in the [LOCK SETTINGS] in the [PROTECT] menu.
Press and hold the DISPLAY button for more than five
seconds to unlock the remote. See page 48.

G MENU Button

Opens and closes the OSD menu. See page 38.

H EXIT Button

Acts as a back button within the OSD to move to the
previous OSD menu.

Acts as an EXIT button to close the OSD menu when on the
main menu.

NOTE: The buttons with no explanation are not used with

your monitor model.

A POWER ON and STANDBY Buttons

POWER ON resumes full power from low power mode.

STANDBY puts the monitor in low power mode.
See page 34.

B INPUT Button

Cycles through the available inputs. See page 31.

These are available inputs only, shown as their factory
preset name.

C OPTION MENU Button

For use when an Option Board is installed. See page 22.

The function depends on which Option Board is installed in the monitor.

D KEYPAD

Press the buttons to set and change passwords, change the
channel and set the REMOTE ID. See page 50.

Some buttons are used for CEC (Consumer Electronics
Control) and the Media Player function (“Using the Media

Player Menu” on page 40).

I / Button (up/down button)

Acts as navigation buttons, within the OSD and
Media Player menus, to move the highlighted area up or
down.

J –/+ Button (minus/plus button)

Acts as navigation buttons, within the OSD and
Media Player menus, to move the highlighted area left or
right.

Increases or decreases the adjustment level within the
selected OSD menu setting.

K SET/POINT ZOOM Button

SET: When the OSD menu is open, this button acts as a set
button when you make a selection.

L VOLUME +/– Button

Increases or decreases the audio output level.

M CH/ZOOM +/– Button*

For use with an Option Board. The function depends on
which Option Board is installed in the monitor.

N GUIDE Button

For use with an Option Board. The function depends on
which Option Board is installed in the monitor.

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O MUTE Button

Mutes the monitor’s audio and video output.
Press it again to unmute the monitor’s audio and video
output. See “MUTE SETTING” on page 90 for details.

P PICTURE MODE Button

Cycles through the picture modes [NATIVE], [RETAIL],
[CONFERENCING], [HIGHBRIGHT], [TRANSPORTATION]
and [CUSTOM]. See page 36.

Q ASPECT Button

Cycles through the picture aspect ratios [FULL], [WIDE],
[1:1], [ZOOM] and [NORMAL]. See page 37.

NOTE:  [Media Player] is not available.

R STILL Button

ON/OFF button: Activates/deactivates still picture mode.

S REMOTE ID Button

Activates the REMOTE ID function. See page 50.

T MTS Button

For use with an Option Board. The function depends on
which Option Board is installed in the monitor.

- Button*

Activates closed captioning for VIDEO input only.

*: When using with an Option Board, the function depends on which Option

Board is installed in the monitor. Refer to the Option Board’s user’s manual
for further information.

English−25

Chapter 3 Connections

This Chapter Includes:

> “Wiring Diagram” on page 27

> “Connecting to a Personal Computer” on page 28

> “Connecting to a Computer with HDMI” on page 28

> “Connecting a Computer with DisplayPort” on page 28

> “Connecting to a Media Device with HDMI” on page 29

> “Connecting to audio equipment with ARC function” on page 29

> “HDMI-CEC (Consumer Electronics Control)” on page 29

> “HDMI-CEC Command” on page 30

> “Internal Video Sources” on page 31

> “Media Player” on page 31

> “Option Board for the Monitor” on page 31

> “Connecting a USB Device” on page 32

Connecting External Equipment

NOTE:  • Do not connect or disconnect cables when turning on the monitor’s main power or other external equipment’s power

as this may result in loss of image.

• Do not use an attenuating (built-in resistor) audio cable. Using an audio cable with a built-in resistor will lower the

sound level.

Before making connections:

• Turn off the device’s power before connecting it to the monitor.

• Refer to the device’s user manual for available connection types and instructions for the device.

• We recommend turning off the monitor’s main power before connecting or disconnecting a USB storage device or microSD
memory card to avoid data corruption.

English−26

Wiring Diagram

USB

DisplayPort IN

HDMI IN

HDMI IN (ARC)

LAN IN

AUDIO OUT

REMOTE

USB storage

device.

Computer (DisplayPort)

Dotted lines = other signal

Solid lines = video signal

Dashed lines = audio signal

HDMI video player or

Computer (HDMI)

Blu-ray or

DVD Player

(HDMI)

Stereo Amplifier

AV

Amplifier

Sensor Option

English−27

Connecting to a Personal Computer

Connecting to a Computer with HDMI

• Please use an HDMI cable with the HDMI logo.

• It may take a moment for the signal to appear after turning on the computer.

• Some display cards or drivers may not show an image correctly.

• When you use a computer with HDMI, please set [OVERSCAN] to [AUTO] or [OFF] as display drivers may not be fully
compatible and may not show an image correctly. See page 77.

• If the source signal is 4K (50 Hz/60 Hz) or HDCP 2.2 or HDR, please set [MODE2] at [HDMI] in [ADVANCED].
See page 77.

• If the monitor’s main power is turned on after a connected computer is turned on, sometimes an image is not shown. In this
case, please turn off the computer then turn it on again.

• When input signal is 4K, please use high-speed HDMI cable.

Connecting a Computer with DisplayPort

• Please use a DisplayPort cable with the DisplayPort compliance logo.

• It may take a moment for the signal to appear after turning on the computer.

• When connecting a DisplayPort cable to a component with a signal conversion adapter, an image may not appear.

• Some DisplayPort cables feature a locking function. When removing this cable, hold down the top button to release the lock.

• If the monitor’s main power is turned on after a connected computer is turned on, sometimes an image is not shown. In this
case, please turn off the computer then turn it on again.

English−28

Connecting to a Media Device with HDMI

Connect using a single HDMI cable for the highest picture and audio quality from Blu-ray players, streaming media players, or
game consoles. 4K UHD content is shown when the connected media player also supports 4K content.

Supports HDCP (High-bandwidth Digital Contents Protection) coding, a type of digital rights management that prevents high­definition content, in Blu-ray discs, DVDs and streaming media, from being copied or broadcast illegally.

NOTE:  • Connect the HDMI cable when both the media player and the monitor are powered off.

• Use an HDMI cable with the HDMI logo.

• Some HDMI cables and devices may not show an image correctly due to different HDMI specifications.

• If you are unable to view material via the digital inputs, this does not necessarily mean that the monitor is not

functioning properly. With the implementation of HDCP, there may be cases in which certain content is protected
by HDCP and might not be displayed due to the decision/intention of the HDCP community (Digital Content
Protection, LLC).

Connecting to audio equipment with ARC function

If connecting audio equipment with ARC function to HDMI1 (ARC) using the included ARC-supported HDMI cable, the audio
equipment outputs the monitor’s sound.

• The sound via HDMI1 (ARC) is not adjustable by the OSD menu.

• When the ARC function is activated, the monitor’s internal speakers are muted.

• The playing picture’s sound is output to audio equipment via HDMI1 (ARC). The HDMI1 (ARC) does not send an audio signal
that is not supported by the input connector of playing pictures. Please refer to “Specifications” for the supported signal of
each input connector.

HDMI-CEC (Consumer Electronics Control)

HDMI-CEC provides compatible media players, connected via HDMI, the ability to communicate and allow limited control
between the device and the monitor. For example, turning on a Blu-ray player can immediately switch input to the Blu-ray player
without using the remote control. Not all devices are fully compatible, and, in some cases, the media device manufacturer may
only provide compatibility with its own monitors or TVs. See “HDMI-CEC Command” on page 30.

When supported, the monitor’s remote control can be used to control the HDMI media device.

NOTE:  The instructions in this section guide you through configuring [CEC] in the monitor’s OSD menu. These settings can

also be configured using the monitor’s web controls. The function names and location in the web controls are the same
as the OSD menu.

Enabling CEC

1. Connect a HDMI-CEC compatible device to the HDMI port.

Press the HDMI button on the remote control.

2. Press the MENU button to open the OSD menu.

3. Navigate to [ADVANCED] then to [CEC].

4. Select [MODE1] or [MODE2] for [CEC].

5. Select [YES] under [SEARCH DEVICE].

When the search is complete, the HDMI port with a CEC connected device is shown with its name.

If no HDMI-CEC compatible device is found, make sure the device is plugged in, turned on, it supports CEC and CEC is
enabled. Depending on the manufacturer, the CEC feature may have a different name. Refer the device’s product manual.

6. Press the EXIT button on the remote control.

English−29

HDMI-CEC Command

INPUT-ADVANCED:

RESET

Please connect a HDMI-CEC compatible device to HDMI port.

OSD menu HDMI-CEC command name Explanation Setting

CEC
(Consumer
Electronics
Control)

AUTO
TURN OFF

AUDIO
RECEIVER

SEARCH
DEVICE

This CEC function supports Feature Abort.
Please refer to Connections (see page 26) for HDMI-CEC compatible device connection.

One Touch Play When a HDMI-CEC compatible device is turned

on, the monitor connected to the device by an
HDMI cable also automatically turns on. After
the monitor powers on, [INPUT] automatically
switches to the [HDMI2].

If the monitor is turned on when HDMI-CEC
compatible devices are turned on, it changes the
[INPUT] from the current one to [HDMI2].

Remote Control Pass Through The monitor’s wireless remote control button

operation can function with HDMI-CEC
compatible devices.

For example, if turning on the monitor by
wireless remote control and pressing the play
button, a HDMI-CEC compatible device can also
be turned on and play.

Power Status Connected HDMI-CEC compatible devices

obtain the monitor’s power status, such as if the
monitor is in standby mode or on.

System Information This function obtains the information for a

connected HDMI-CEC compatible device (CEC
version, Physical Address). In addition, this
function copes with the “Change Language
function”.

If the language for the monitor is changed, the
language for a connected HDMI-CEC compatible
device is changed to the same language, which
is selected for the monitor.

For the “Change Language function”, it is
necessary that the connected HDMI-CEC
compatible device be able to cope with multi­language.

System Standby If the monitor is set to standby using the wireless

remote control, HDMI-CEC compatible devices
also go into standby at the same time.

If the monitor goes into standby while an HDMI­CEC compatible device is recording, the device
remains on. Please refer to the user’s manual
supplied with the HDMI-CEC compatible device
for further information.

System Audio Control Please connect an audio equipment with ARC

function to HDMI1 (ARC) by the included ARC
supported HDMI cable.

The Volume button on the wireless remote
control can control the volume of the connected
HDMI ARC audio equipment.

While this function is active, the monitor’s
internal speaker is automatically set to MUTE.

Device OSD Name Transfer Use the + – buttons to highlight YES, then

press the SET/POINT ZOOM button to start the
search.

Routing Control By selecting a device name, the HDMI-CEC

compatible device input switches to the input
you selected. After selecting the device, wireless
remote control operation functions for the
selected device.

INPUT SIGNAL SETTINGS
DisplayPort
HDMI
OVERSCAN
VIDEO RANGE
CEC
SIGNAL FORMAT
SIDE BORDER COLOR

To set the CEC options, please follow the steps
below.

Press the Menu button to open the OSD.

Using the  + – buttons, navigate to [INPUT],
to [ADVANCED], to [CEC], then press SET/
POINT ZOOM button to enter the CEC options.

Use the + – buttons to highlight [MODE1] or
[MODE2], then press SET/POINT ZOOM button
to enable CEC.

Use the  buttons to select [AUTO TURN
OFF].

Use the + – buttons to highlight [YES], then
press the SET/POINT ZOOM button to select
[YES].

Use the  buttons to select [AUDIO
RECEIVER] then press SET/POINT ZOOM.

Use the + – buttons to highlight [ENABLE], then
press the SET/POINT ZOOM button to select
[ENABLE].

Use the  buttons to select [SEARCH
DEVICE].

This function searches for CEC compatible
devices on the monitor’s HDMI connections. If a
HDMI-CEC compatible device is successfully
detected, this function obtains the device’s
name. The device’s name and the HDMI
connection it is found on are displayed.

CEC OFF
AUTO TURN OFF
YES / NO
AUDIO RECEIVER
ENABLE / DISABLE
SEARCH DEVICE
YES / NO

English−30

Internal Video Sources

Media Player

The internal Media Player will play audio and video files that are stored on a USB storage device. See page 40 for instructions
on using the Media Player.

Connect compatible USB storage device

Format a USB storage device in the NTS format, FAT32 format, or FAT16 format to use it with the Media Player. Refer to the
computer’s instruction user’s manual or Help file on how to format a USB storage device.

Please use a USB storage device with this monitor in accordance with the drawing below.

If the physical size of the USB storage device is larger than the supported size listed below, please use a USB extension cable.

Extension cable

USB storage device

Under 3.5 mm

NOTE:  • If the monitor does not recognize a connected USB storage device, make sure the file structure is FAT32 or FAT16.

• The monitor is not guaranteed to work with all USB storage devices sold commercially.

• Insert the USB storage device into the USB port on the monitor’s side terminal panel.

• The Media Player does not use any other USB connection on the monitor (see page 22).

Option Board for the Monitor

When an Option Board or a Raspberry Pi Compute Module Interface Board and Raspberry Pi Compute Module are installed
in the monitor, it will show as available in the list in the [INPUT] of the OSD menu. Option Boards, the Raspberry Pi Compute
Module Interface Board and Raspberry Pi Compute Module are available separately and must be physically installed in the
monitor. This document contains instructions for how to use the monitor without any additional options. The locations where an
Option Board and the Raspberry Pi Compute Module Interface Board, Raspberry Pi Compute Module are installed is indicated
on the Terminal Panel diagram (see page 22). Full installation and usage instructions are provided with the individual device
or available online.

NOTE:  • The optional DS1-IF20CE Compute Module Interface Board and Raspberry Pi Compute Module are available

separately. Please contact an authorized NEC dealer for more information. Installation must be performed by a
qualified technician. Do not attempt to install a Compute Module Interface Board and Raspberry Pi Compute Module
by yourself. See page 73.

• Please contact your supplier for available Option Boards.

English−31

Connecting a USB Device

USB storage device reader for use with the internal Media Player. See page 40.

Power supply port.

This port is for updating the firmware of the monitor via a USB storage device.

Imports or exports the monitor settings via the USB storage device when selecting [CLONE SETTING].

CAUTION:  Pleaser refer to “CAUTION 2”.

NOTE:  • Please make sure the connector shape and orientation is correctly aligned when connecting the USB device or

cable.

• Connecting a USB storage device with the monitor already powered on is not recommended. To prevent damage to

the monitor and possible corruption of the connected device’s data files, the monitor’s main power switch should be
off before making connections.

English−32

Chapter 4 Basic Operation

This Chapter Includes:

> “Power ON and OFF Modes” on page 34

> “Operating Range for the Remote Control” on page 35

> “Using Power Management” on page 35

> “Showing the Information OSD” on page 36

> “Switching Between Picture Modes” on page 36

> “Setting the Aspect Ratio” on page 37

> “OSD (On-Screen Display) Controls” on page 38

> “Using the Media Player Menu” on page 40

> “Media Player Menu” on page 40

English−33

Power ON and OFF Modes

Press the ⏻ button on the Control Panel or POWER ON button on the remote control to turn on the monitor.

The monitor’s power LED indicates the current status of the monitor. Please refer to the following table for information about the
power indicator.

Power indicator status and

lighting pattern

Condition Recovery

Glowing blue Normal 1. Turn on the monitor using the remote control

Blinking green*

1

Under any of the conditions below, no input
signal has been detected by the monitor during

or the monitor button.

2. Send an AV signal input to the monitor.

the period of time you set:

• The monitor is using an Option Board*2.

• [AUTO INPUT CHANGE] is set to a setting
except for [NONE].

• [USB POWER] is set to [ON].

• [SLOT POWER] is set to [ON].

• [QUICK START] is set to [ENABLE].

Glowing amber No AV signal input has been detected by the

monitor during the period of time you set.
(with network signal input)

Blinking amber No AV signal input has been detected by the

monitor during the period of time you set.

1. Turn on the monitor using the remote control
or the monitor button.

2. Send an AV signal input to the monitor.*

3

3. Disconnect and reconnect a signal cable.

(no network signal input)

Glowing red Turn off the monitor by the remote control or the

monitor button.

*1: Time setting for auto power save is available at [POWER SAVE SETTINGS] (See page 86).
*2: [SLOT POWER] is set to [ON] or [AUTO].
*3: [MODE] in [POWER SAVE SETTINGS] is set to [NORMAL].

Turn on the monitor using the remote control or
the monitor button.

NOTE:  • The blue power indicator that the monitor is powered on and functioning normally can be turned off in the monitor’s

OSD menu options. See page 90.

• If the indicator is blinking red in a combination of long and short durations, a certain failure might have occurred,

please contact your supplier.

The Main Power switch must be in the ON position in order to power up the monitor using the POWER ON button on the remote
control or the ⏻ button on the Control Panel.

OFF

Main Power Switch

ON

⏻ Button

English−34

Operating Range for the Remote Control

Point the top of the remote control toward the monitor’s remote control sensor during button operation.

Use the remote control within a distance of about 7 m (23 ft.) from the remote
control sensor, or at a horizontal and vertical angle of within 30° and within a
distance of about 3.5 m (10 ft.).

NOTE:  The remote control system may not function when direct sunlight or strong

illumination strikes the remote control sensor, or when there is an object in
the path.

Handling the remote control

• Do not expose to strong shock.

• Do not allow water or other liquid to splash on the remote control.
If the remote control gets wet, wipe it dry immediately.

• Avoid exposure to heat and steam.

• Except to install the batteries, do not open the remote control.

Using Power Management

This function decreases the power consumption of the monitor when it is not in use.

When connected to a computer, power consumption by the monitor reduces automatically if the keyboard or mouse are not used
during the time set in the computer’s power management settings. Refer to your computer’s user manual for more information.

When connected to an AV source, such as a Blu-ray, DVD, or streaming video player, power consumption by the monitor
reduces automatically after a certain amount of time has passed since the monitor recognized “no signal input”. This option is
set to [ENABLE] or [DISABLE] in the [POWER SAVE] settings under the [PROTECT] menu of the OSD. See page 86.

NOTE:  • Depending on the computer and display card used, this function may not operate.

• After the video signal is lost, the monitor automatically turns off after a preset time period. Please refer to the [TIME

SETTING] in [POWER SAVE] page 86.

• Schedules can be created for the monitor to power on or off at specific times. See page 44.

• Please refer to the [POWER SAVE] in [POWER SAVE SETTINGS] for the power management function.

English−35

Showing the Information OSD

H

DP

3840 x 2160

The Information OSD provides information such as: Input Source, Picture Size, IP Address, Monitor ID, etc.

Press the DISPLAY button on the remote control to bring up the Information OSD.

A Input name

B Input Signal Information

C HDR Information

D Communication Info*

* Shows when [COMMUNICATION INFO] is [ON].

Green: Connected LAN
Red: Not connected LAN

NOTE:  When the input signal is [Media Player], the information OSD will not be displayed.

Switching Between Picture Modes

Press the PICTURE MODE button on the wireless remote control to cycle through the picture modes [NATIVE], [RETAIL],
[CONFERENCING], [HIGHBRIGHT], [TRANSPORTATION] and [CUSTOM].

The picture modes are pre-configured with settings for general use. See “Using Picture Modes” on page 45 for instructions on
changing the picture mode settings.

English−36

Setting the Aspect Ratio

Press the ASPECT button on the remote control to cycle through the options available for the current input signal.

NOTE:  [Media Player] is not available.

[FULL] ➙ [WIDE] ➙ [1:1] ➙ [ZOOM] ➙ [NORMAL]

Aspect ratio of

image

Unchanged view*

2

Recommended selection for picture

aspect*

2

Description

4:3 [NORMAL] Reproduces the aspect ratio that is sent from

the source.

Squeeze [FULL] Fills the entire screen.

Letterbox [WIDE] Expands a 16:9 letter box signal to fill the entire

screen.

*2: Gray areas indicate unused portions of the screen.

[1:1]: Shows the image in a 1 by 1 pixel format.

[ZOOM]

• The zoom function increases the image size, which expands the image beyond the active screen area. The parts of the
image outside the active screen area are not shown.

ZOOM

ZOOM

English−37

OSD (On-Screen Display) Controls

Goto Adjustment

Select

Return Close

PICTURE:

PICTURE MODE

BACKLIGHT
BACKLIGHT DIMMING
VIDEO BLACK LEVEL
GAMMA
COLOR
CONTRAST
ADVANCED

NATIVE

RETAIL
CONFERENCING
TRANSPORTATION
CUSTOM

NOTE:  Some functions may not be available depending on the model or optional equipment.

Input source

Main Menu Icons

Main Menu Item

Sub Menu

Key Guide

Adjustment Settings

Remote Control

Control Panel

Press  or  to
navigate to a sub-menu.

Press SET/POINT
ZOOM to select an
option.

Press  or , + or –
to select the function or
setting to be adjusted.

Press INPUT to select an option.

Move r, s, v, w keys to select the
function or setting to be adjusted.
Press SET to select an option.

Press MENU/EXIT to open or exit the
OSD menu.

Press MENU or EXIT.

English−38

Below is a brief summary of where controls are under each menu item. A table listing all options is located in “OSD Controls List”

on page 75.

INPUT: Select settings related to the input signal source. Configure the Media Player settings.

PICTURE: Select one of the default picture modes, manually adjust the color settings, adjust the aspect ratio,

and adjust other settings related to the picture.

AUDIO: Adjust volume, balance, equalizer, and select settings related to the audio.

SCHEDULE: Create auto power on/off schedules and set the off timer.

SLOT: Select settings related to an Option Board if installed.

NETWORK: Set network information, security, etc.

PROTECT: Select options related to protecting the monitor hardware, such as configuring the cooling fans,

adjusting automatic power save and power on delay, and enabling the alert mail to be notified when an error
occurs in the monitor.

SYSTEM: View the monitor information, set the date and time and the daylight savings time, select the
languages of the on-screen display menu, or perform a factory reset.

English−39

Using the Media Player Menu

The Media Player plays image, video, and music files
located on a USB storage device connected the USB port
on the monitor (see page 22).

To open the Media Player menu, press the MENU button on
the remote control and select [Media Player] with [INPUT
SELECT] in the OSD menu.

NOTE: The USB storage device containing the files must

be connected to the USB port on the monitor.

Media Player Menu

Shows image, music, or video files stored in the USB
storage device.

Select the type of file you want to play between movie,
music, and photo.

Selecting Files to Play

• Playing a file.

Navigate to a file using the , , –, + buttons on the
remote control, and then press the button.

• Playing multiple files.

1. Navigate to a file using the , , –, + buttons on the

remote control.

2. Press the SET/POINT ZOOM button to add a

checkmark next to each file.

3. This saves the files as a playlist in the USB storage

device.

NOTE: • The files play in the sorted order.

• File names must contain only alphanumeric

characters.

Operation Buttons

• Press the SET/POINT ZOOM button while playing a file
to display the operation menu on the screen.

• Press –, + buttons to highlight an item in the operation
menu and then press the SET/POINT ZOOM button.

• Press the EXIT or the  button on the remote control to
close the operation menu.

Slideshow Operation

• Navigate to files using the , , –, + buttons and press

the button to start a slideshow.
Press the button to pause the slideshow.

• To pause the slideshow using the on-screen operation
menu, select .
Select to resume the slideshow.

• Select or press the button to return to the
previous image.

• Select or press the button to go to the next
image.

• Select or press the button to stop the slideshow.

Repeat Play

The following modes are available to loop files for repeat
play.

- Repeat off

• No selected files.

- All files in the folder are played once, in the sorted

order.

• One or more selected files.

- Any files you checked are played once, in the sorted

order.

- Repeat one file

• No selected files.

- A file is playing: the current file plays on a loop.

- No file is playing: the highlighted file in the folder plays

on a loop.

• One or more selected files.

- The first file in the sorted is played on a loop.

- Repeat all files

• No selected files.

- All files in the folder are played on a loop, in the sorted

order.

• One or more selected files.

- The selected files are played on a loop, in the sorted

order.

Random Play

- Random Play

• Shuffles files to repeat play in a random order instead of
the file sorted order.

Other Functions

• Select to view the playlist of files.
You can also select the files to play from the list.

• While a file is being played, select to show
information on the file being played.

• Select or to rotate an image being displayed.

English−40

Zoom Function

• Select or to switch the image size.
8, 4, 2, 1, 1/2, 1/4.

• Select to scroll the enlarged image.

Random Play

- Random Play

• Shuffles files to repeat play in a random order instead of
the file sorted order.

Video and Music Operations

• Select files using the , , –, + buttons and press the

button to start the playback.
Press the button to pause the playback.

• To pause the playback using the on-screen operation
menu, select .
Select to resume the playback.

• Select to start fast forward.
FF2X, FF4X, FF8X, FF16X, FF32X

(The sound is not output).

• Select to start fast backward.
FF2X, FF4X, FF8X, FF16X, FF32X

(The sound is not output).

• Select or press the button to return to the
previous file.

• Select or press the button to go to the next file.

• Select or press the button to stop the playback.

Repeat Play

The following modes are available to loop files for repeat
play.

- Repeat off

• No selected files.

- All files in the folder are played once, in the sorted

order.

• One or more selected files.

- Any files you checked are played once, in the sorted

order.

- Repeat one file

• No selected files.

- A file is playing: the current file plays on a loop.

- No file is playing: the highlighted file in the folder plays

on a loop.

• One or more selected files.

- The highlight is on a checked file: the highlighted file

plays on a loop.

- The highlight is not on a checked file: the first checked

file in the sorted order plays on a loop.

- Repeat all files

• No selected files.

- All files in the folder are played on a loop, in the sorted

order.

• One or more selected files.

- The selected files are played on a loop, in the sorted

order.

Slide Show

Slide Show

• Set the amount of time to show the image.
Short: 5 sec.
Medium: 10 sec.
Long: 15 sec.

Other Functions

• Select to view the playlist of files.
You can also select the files to play from the list.

• While a file is being played, select to show
information on the file being played.

NOTE:  • When turning off the power or exiting the Media

Player menu, the playlist selection will reset.
When you next use the Media Player, you will
need to select the playlist’s file again.

• To play files automatically when turning

on the power, select the content to play
in [Media Player] under [INPUT SIGNAL
SETTINGS] (see page 77).

• Only use USB mass storage class device types.

There is no support for any other kind of USB
device.

• We cannot guarantee to support all commercially

available USB mass storage devices.

• Do not use a USB hub.

• Do not use a multi-partition USB storage device.

• Supports power USB Type-A connector (DC 5 V,

max. 2 A). For USB devices over 2 A, use an
external AC power adaptor.

• NTFS (New Technology File System) is the

recommended file system for the USB storage
device.

• When connecting the monitor to a computer,

with a USB device formatted as FAT16 or FAT32,
a message prompting you to the scan the USB
device may appear. If that occurs, scan the USB
device.

(Only for video)

• Plays a section of a video in a loop.
Set the start point with and the stop point with .
Select to stop the loop playing.

English−41

Data Format for USB

Supported file system

Max. folder level

Max. number of photos

FAT16/32, NTFS

9

997

PHOTO mode

File Extension Data format Min. Resolution (HxV) of Image Max. Resolution (HxV) of Image

JPEG, JPG, JPE Baseline Sequential DCT 75x75 pixels 15,360x8,640 pixels

non-interlace 9,600x6,400 pixels

MUSIC mode

File Extension Data format Max. Bit rate Max. Channel No.

MP3 MPEG1/2 Layer3 (MP3) 320 Kbps 2ch

MOVIE mode

Container format Supported Video codec Supported Audio codec

MPG, MPEG MPEG1, MPEG2, MPEG4 LPCM, MP3, AAC

TS MPEG2, H.264, HEVC/H.265 LPCM, MP3, AAC

MP4 MPEG2, MPEG4, H.263, H.264, HEVC/H.265 LPCM, MP3, AAC

WMV H.264, Windows Media Video 9 WMA 9, WMA 10 Pro

Video codec Max. Bit rate of Video*2Max. Resolution (HxV) of Video

MPEG1 40 Mbps 1920x1080@30 Hz

MPEG2 40 Mbps 1920x1080@30 Hz

MPEG4 40 Mbps 1920x1080@30 Hz

H.263 40 Mbps 1920x1080@30 Hz

H.264 135 Mbps 3840x2160@60 Hz

HEVC/H.265 100 Mbps 3840x2160@60 Hz

Windows Media Video 9

40 Mbps 1920x1080@30 Hz

(WMV3)

Audio codec Max. Bit rate of Audio*2Max. Channel No.

LPCM 1.5 Mbps 5.1ch*

1

MPEG1/2 Layer3 (MP3) 320 Kbps 2ch

AAC AAC-LC: 576 Kbps

5.1ch*

1

HE-AAC v1: 288 Kbps
HE-AAC v2: 144 Kbps

WMA 9 Standard 320 Kbps 2ch

WMA 10 Pro M0 192 Kbps 2ch

WMA 10 Pro M1 384 Kbps 5.1ch*

WMA 10 Pro M2 768 Kbps 5.1ch*

*1: It is played with down-converted to 2ch.
*2: It may not play smoothly at combination of Max bit rate of Video and Audio.

1

1

NOTE:  • Sometimes, it may not be possible to play a video file even when the conditions above are met.

The file may not be played properly depending on the bit rate.
Video files made with a codec not supported by the monitor cannot be played.

English−42

Chapter 5 Advanced Operation

This Chapter Includes:

> “Creating a Power Schedule” on page 44

> “Using Picture Modes” on page 45

> “Setting Security and Locking the Monitor Controls” on page 46

> “Password Security” on page 46

> “Locking the Button Controls” on page 48

> “Setting the Remote Control ID Function” on page 50

English−43

Creating a Power Schedule

Goto Adjustment

Select

Return Close

SCHEDULE:

SCHEDULE INFORMATION

OFF TIMER
RESET

SETTINGS:
1

POWER: ON
TIME: 04 : 03
INPUT: HDMI

DATE

YEAR: 2020
MONTH: JAN
DAY: 01

EVERY WEEK

ALL MON TUE WED
THU FRI SAT SUN

The schedule function allows the monitor to automatically change between power on and standby modes at different times.

To program the schedule:

1. Enter the [SCHEDULE] menu.

a Using the remote control, highlight [SCHEDULE INFORMATION] using

the  and  buttons.

b Press the SET/POINT ZOOM or the + button to enter the Settings menu.

c Highlight the desired schedule number and press SET/POINT ZOOM

button.

d The box next to the number will turn yellow.

The schedule can now be programmed.

2. Use the  button to highlight the [POWER]. Use the + and – buttons to
set [ON].

To set a power off schedule, set [OFF].

3. Use the  button to highlight the [TIME]. Use the + and – buttons to set the time.

4. Use the  and  buttons to highlight [INPUT]. Use the + and – buttons to choose the input source.

5. Use the  button to select [DATE] or [EVERY WEEK]. Press the SET/POINT ZOOM button on a menu which is suitable for
the schedule.

If the schedule is to be run on a specific day, choose [DATE] and press the SET/POINT ZOOM button.

If a weekly schedule is desired, choose the [EVERY WEEK] using the  and  buttons and pressing SET/POINT ZOOM
button to select. Then select the specific day and press SET/POINT ZOOM button.

6. After a schedule is programmed, the remaining schedules can then be set. Press MENU button to leave the OSD or press
EXIT button to go back to the previous menu.

NOTE:  • If schedules are overlapping, the schedule with the highest number will have priority over the schedule with the

lowest number. For example, schedule #7 will have priority over schedule #1.

English−44

Using Picture Modes

There are different picture modes available. These picture modes have also been configured with settings as described in the

“Picture Mode Types” table below.

To change picture modes:

Press the PICTURE MODE button on the wireless remote control to cycle through the modes, or select the mode in the
[PICTURE] list in the OSD menu.

These picture modes are available based on the selected input:

• For [DisplayPort], [HDMI1], [HDMI2], [Media Player], [COMPUTE MODULE]*1, [OPTION]

NATIVE ➙ RETAIL ➙ CONFERENCING ➙ HIGHBRIGHT ➙ TRANSPORTATION ➙ CUSTOM

*1: This input is available when the optional Raspberry Pi Compute Module Interface Board and Raspberry Pi Compute Module are installed. See page 73.

Picture Mode Types

PICTURE MODE PURPOSE

NATIVE Standard setting.

RETAIL Bright, vivid colors ideal for advertising and branding.

CONFERENCING Lower color temperature and optimized for natural human complexions.

HIGHBRIGHT Maximum backlight brightness with higher color temperature for brighter ambient environments.

TRANSPORTATION Maximum backlight brightness with high contrast to read text under all conditions.

CUSTOM Customizable settings.

NOTE:  Changing any of the settings of the [PICTURE] in the OSD menu will change the settings for the current input only.

English−45

Setting Security and Locking the Monitor Controls

Under normal operation, the monitor can be controlled by any person using the remote control or the monitor control panel. You
can prevent unauthorized use and changes to the monitor settings by enabling the options for Security and Lock Settings.

The security and locking functions covered in this section are:

• Setting the password

• Enabling password security

• Locking the remote control buttons

• Locking the monitor control panel buttons

NOTE:  The instructions in this section describe locking access to the monitor controls. Other security settings available for this

monitor are described in the related sections for those controls:

• “Network Settings” on page 56 for the monitor’s web controls.

Settings Location

The instructions in this section guide you through configuring security and locking functions in the monitor’s OSD menu. These
settings can also be configured using the monitor’s web controls. The function names and location in the web controls are the
same as the OSD menu. See page 55.

The menu options for Security and Lock Settings are in the [PROTECT] menu in both the OSD menu and web controls.

PROTECT:

POWER SAVE SETTINGS
THERMAL MANAGEMENT
SCREEN SAVER
POWER ON DELAY

SECURITY SETTINGS

LOCK SETTINGS
ALERT MAIL
RESET

PASSWORD:
o o o o
SECURE MODE:
START-UP LOCK
CONTROL LOCK

CHANGE PASSWORD
CURRENT PASSWORD:
o o o o
NEW PASSWORD:
o o o o
CONFIRM PASSWORD:
o o o o

Password Security

When password security is enabled a four-digit passcode is required when turning on the main power and/or accessing the
OSD (see page 47). The monitor will function normally after the password is entered. If no buttons have been pressed for
30 seconds, the monitor will return to SECURE MODE automatically and the password will be required again.

NOTE: If you change the password make a note of the password in a secure location. If you forget your password, you will need

to contact technical support to get a recovery password to access the monitor OSD menu.

English−46

Set a password for the monitor

ALERT MAIL

This step is only required if you want to change the password.

PROTECT:

POWER SAVE SETTINGS
THERMAL MANAGEMENT
SCREEN SAVER
POWER ON DELAY

SECURITY SETTINGS

LOCK SETTINGS
ALERT MAIL
RESET

PASSWORD:
o o o o
SECURE MODE:
START-UP LOCK
CONTROL LOCK

CHANGE PASSWORD
CURRENT PASSWORD:

o o o o

NEW PASSWORD:
o o o o
CONFIRM PASSWORD:
o o o o

1. Using the remote control, navigate to [PROTECT] then to [SECURITY SETTINGS].

2. Under [CHANGE PASSWORD], enter the password in the [CURRENT PASSWORD] field. (The default password is: 0 0 0 0).

3. Input a [NEW PASSWORD] and then input it again in the [CONFIRM PASSWORD] field.

4. The new password is immediately saved.

Enable password security

PROTECT:

POWER SAVE SETTINGS
THERMAL MANAGEMENT
SCREEN SAVER
POWER ON DELAY

SECURITY SETTINGS

LOCK SETTINGS

PASSWORD:
o o o o
SECURE MODE:

START-UP LOCK

CONTROL LOCK

1. Using the remote control, navigate to [PROTECT] then to [SECURITY SETTINGS].

2. Enter the password in the [PASSWORD] field to access the [SECURE MODE] settings.

3. Select the type of [SECURE MODE] you want to use:

• [START-UP LOCK] – the password is required when turning on the monitor from the main power switch.

When this option is selected the password is only required on power cycle using the main power switch or after power
failure. This option does not prompt for a password when using the remote control POWER ON and STANDBY buttons or
the ⏻ button on the monitor control panel.

• [CONTROL LOCK] – the password is required to use any of the remote control buttons or buttons on the monitor.

English−47

Locking the Button Controls

The lock settings prevent the monitor from responding to button presses on the remote control or monitor control panel. When
locking the button controls, some buttons can be configured to remain unlocked for users to adjust the settings. Locking and
unlocking the button controls do not require a password.

Locking the IR Remote Buttons

The [IR] in the [LOCK SETTINGS] prevent the monitor from being controlled using the remote control. Enabling the [IR] does not
lock the buttons on the monitor control panel.

PROTECT:

POWER SAVE SETTINGS
THERMAL MANAGEMENT
SCREEN SAVER
POWER ON DELAY
SECURITY SETTINGS

LOCK SETTINGS

ALERT MAIL
RESET

SELECT IR
MODE CUSTOM LOCK

POWER
UNLOCK / LOCK
VOLUME
UNLOCK / LOCK
MIN VOL
10
MAX VOL
80
INPUT
UNLOCK / LOCK
ACTIVATE / DEACTIVATE

1. Using the remote control, navigate to [PROTECT] then to [LOCK SETTINGS].

2. Under the [SELECT] option, press the ,  buttons to change the setting to [IR].

3. Under [MODE] choose the lock mode you want to enable.

• [ALL LOCK] – all buttons are locked.

• [CUSTOM LOCK] – all remote buttons are locked except for the following buttons that can be individually set as locked

or unlocked.

• [POWER] – select [UNLOCK] to be able to use the ⏻ button when the IR Remote is locked. Select [LOCK] to lock the

button.

• [VOLUME] – select [UNLOCK] to be able to control the volume with the VOL+, VOL– buttons when the IR Remote is
locked. Select [LOCK] to prevent volume adjustment.

When activating the volume lock, the monitor volume will immediately change to the MIN VOL value.

• [MIN VOL] and [MAX VOL] – the volume buttons are unlocked, and the volume level can only be adjusted within

the [MIN] and [MAX] range set.

The [VOLUME] must be set to [UNLOCK] for this setting to operate.

• [INPUT] – select [UNLOCK] to unlock all input buttons. Select [LOCK] to lock all input buttons.

4. Select [ACTIVATE] to activate all settings.

Unlocking the Remote Controls

• Remote Control – to return to normal operation press-and-hold the DISPLAY button for at least five seconds.

English−48

Locking the Control Panel Buttons

The [KEY] in the [LOCK SETTINGS] prevent the monitor from being controlled using the buttons on the monitor Control Panel.
Enabling the [KEY] does not lock the buttons on the remote control.

PROTECT:

POWER SAVE SETTINGS
THERMAL MANAGEMENT
SCREEN SAVER
POWER ON DELAY
SECURITY SETTINGS

LOCK SETTINGS

ALERT MAIL
RESET

1. Using the remote control, navigate to [PROTECT] then to [LOCK SETTINGS].

2. Under the [SELECT] option, press the ,  buttons to change the setting to [KEY].

3. Under [MODE] choose the lock mode you want to enable.

• [ALL LOCK] – all key buttons are locked.

• [CUSTOM LOCK] – all key buttons are locked except for the following buttons that can be individually set to be locked or

unlocked.

• [POWER] – select [UNLOCK] to be able to use the ⏻ button when the keys are locked.

• [VOLUME] – select [UNLOCK] to be able to control the volume with the v/w keys when the keys are locked. Select

[LOCK] to prevent volume adjustment.

When activating the volume lock, the monitor volume will immediately change to the [MIN VOL] value.

• [MIN VOL] and [MAX VOL] – the v/w keys are unlocked and the volume can only be adjusted within the [MIN] and
[MAX] set.

The [VOLUME] must be set to [UNLOCK] for this setting to operate.

• [INPUT] – select [UNLOCK] to be able to change the inputs using the INPUT/SET button.

4. Select [ACTIVATE] to activate all settings.

SELECT KEY
MODE CUSTOM LOCK

POWER
UNLOCK / LOCK
VOLUME
UNLOCK / LOCK
MIN VOL
10
MAX VOL
80
INPUT
UNLOCK / LOCK
ACTIVATE / DEACTIVATE

Unlocking the Monitor Button Panel Controls

Key Buttons – to return to normal operation unlock all the buttons/keys on the main unit control panel by pressing the SET key

and MENU/EXIT button on the main unit control panel at the same time for 3 seconds or longer.

OSD Menu – to return to normal operation, use the remote control to navigate to [PROTECT] then to [LOCK SETTINGS]. Under
the [SELECT] option, press the ,  buttons to change the setting to [KEY]. Under [MODE] choose [UNLOCK] and then select
[ACTIVATE].

Locking the IR Remote Buttons and the Control Panel Buttons/key

Select [PROTECT] ➙ [LOCK SETTINGS] ➙ [SELECT] ➙ [KEY & IR] from the OSD menu.

For the subsequent setting procedure, buttons/keys for which the lock is enabled, and unlocking method, refer to “Lock button
operation on remote control” and “Lock button/key operation on the main unit control panel”.

English−49

Setting the Remote Control ID Function

The remote control can be used to control up to 100 individual MultiSync monitors using what is called the REMOTE CONTROL
ID mode. The REMOTE CONTROL ID mode works in conjunction with the Monitor ID, allowing control of up to 100 individual
MultiSync monitors. For example, if there are many monitors being used in the same area, a remote control in normal mode
would send signals to every monitor at the same time (see Figure 1). Using the remote in REMOTE CONTROL ID mode will
only operate one specific monitor within the group (see Figure 2).

To Set Remote Control ID

While holding down the REMOTE ID SET button on the remote control, use the
KEYPAD to input the Monitor ID (1-100) of the monitor to be controlled via remote.
The remote control can then be used to operate the monitor having that specific
Monitor ID number.

When 0 is selected or when the remote control is in normal mode, all monitors will
be operated.

To Set/Reset Remote Control Mode

ID Mode - To enter ID Mode press the REMOTE ID SET button and hold down for
2 seconds.

Normal Mode - To return to Normal Mode press the REMOTE ID CLEAR button
and hold down for 2 seconds.

NOTE:  • In order for this feature to work properly, the monitor must be assigned

a Monitor ID number. The Monitor ID number can be assigned under
the SYSTEM menu in the OSD. See page 89.

• Point the remote control toward the remote sensor of the desired

monitor and press the REMOTE ID SET button. The MONITOR ID
number is shown on the screen when your remote control is in ID
mode.

Use the Remote Control to Control all Monitors in Range

1. On the remote control, press and hold down the REMOTE ID SET button while
using the keypad to input the REMOTE CONTROL ID number “0”.

2. All monitors within range of the remote control will now respond to keypad press.

Monitor ID:1 Monitor ID:2 Monitor ID:3

Remote works Remote works Remote works

Figure 1

Remote in Normal

mode or the

REMOTE ID is

set to 0

Monitor ID:1 Monitor ID:2 Monitor ID:3

Remote does

not work

Figure 2

Remote set up to

use REMOTE ID:3

Remote does

not work

You need a remote control

for this function.

Remote works

NOTE:  When the REMOTE ID is set to “0”, pressing REMOTE ID SET will make all monitors, within range of the remote signal,

show their Monitor ID on screen. This way you can easily see what the monitor ID is if you want to control a single
monitor, as described below.

Use the remote control to operate a monitor that has a specific MONITOR ID number assigned to it.

1. Set the [MONITOR ID] number for the monitor (see page 89). The [MONITOR ID] number can range from 1-100.

This [MONITOR ID] number allows the remote control to operate this specific monitor without affecting other monitors.

2. On the remote control, press and hold down the REMOTE ID SET button while using the keypad to input the REMOTE
CONTROL ID number (1-100). The REMOTE ID NUMBER should match the MONITOR ID number of the monitor to be
controlled.

3. Point the remote control toward the remote sensor of the desired monitor and press the REMOTE ID SET button.

The MONITOR ID number is shown in red on the monitor.

If the REMOTE CONTROL ID is “0”, then all monitors in range will show their particular MONITOR ID number in red.

If the MONITOR ID number is shown in white on the monitor, the MONITOR ID number and the REMOTE CONTROL ID are
not the same.

English−50

Chapter 6 External Control

This Chapter Includes:

> “Controlling the Monitor via RS-232C” on page 52

> “Controlling the Monitor via LAN” on page 53

> “HTTP Browser” on page 54

> “Commands” on page 60

> “Proof of Play” on page 61

Connecting an external device

There are two options to connect an external device to control the monitor.

• RS-232C terminal.

Connecting an external device to the RS-232C terminal of the monitor with an RS-232C cable.

• LAN port.

Connecting a network to the LAN port of the monitor with a LAN cable (RJ45 category 5 or higher).

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Controlling the Monitor via RS-232C

This monitor can be controlled by connecting a personal computer with an RS-232C (reverse type) terminal.

NOTE:  When you use this function, [CONTROL TERMINAL] in [EXTERNAL CONTROL] should be [RS-232C] (see page 89).

For example, some of the functions that can be controlled by a personal computer are:

• Power ON or standby.

• Switching between input signals.

• Sound Mute ON or OFF.

Connection

Monitor + computer.

• Please turn off the monitor’s main power before connecting a computer to the monitor.

• Please turn on the connected computer first then turn on the monitor’s main power.

If you turn on the computer and monitor in reverse order, the com port may not work.

RS-232C

Computer

RS-232C Cable

NOTE:  • If your computer is equipped only with a 25-pin serial port connector, a 25-pin serial port adapter is required.

Contact your supplier for details.

• For the pin assignment, please see “2) RS-232C input/output” on page 53.

To control the monitor via commands sent from a computer connected with an RS-232C cable, please use the control
command. Instructions for the control command can be found in the “External_Control.pdf”. See page 73.

This monitor uses RXD, TXD and GND lines for RS-232C control.

The reverse type cable (null modem cable) (not included) should be used for RS-232C control.

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PIN ASSIGNMENT

RS-232C input/output

Pin No Name

1 NC
2 RXD
3 TXD
4 NC
5 GND
6 NC
7 NC
8 NC
9 NC

This monitor uses RXD, TXD and GND lines for RS-232C control.

1

6

D-SUB 9P (Monitor side)

5

9

Controlling the Monitor via LAN

Connecting to a Network

Using a LAN cable allows you to specify the Network Settings and the Alert Mail Settings by using an HTTP server function.

NOTE:  When you use this function, [CONTROL TERMINAL] in [EXTERNAL CONTROL] should be [LAN] (see page 89).

To use a LAN connection, you are required to assign an IP address (see page 85). The monitor will obtain an IP address
automatically when connected to a DHCP network.

Example of LAN connection:

Server

Hub

LAN cable

NOTE: Use a category 5 or higher LAN cable.

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HTTP Browser

Overview

Connecting the monitor to a network allows for remote control of the monitor from a computer connected to the same network.

This device uses “JavaScript” and “Cookies” and the browser should be set to accept these functions. Refer to the help files for
the web browser to change the settings to use JavaScript and Cookies.

To access the HTTP server, launch a web browser on a computer connected to the same network as the monitor and enter the
following URL in the web address field:

Network Setting

http://<the Monitor’s IP address>/index.html

NOTE:  • The default IP address is assigned automatically to the monitor.

• NaViSet Administrator software for managing monitors over the network is recommended. It can be download from

the NEC Display website (See page 73).

• If the MONITOR NETWORK SETTINGS screen does not appear in the web browser, press the Ctrl+F5 keys to

refresh your web browser (or clear the cache).

• If the monitor appears to be slow in response to commands or clicks on buttons in the browser, or the general speed

of operation is unacceptable, this may be due to network traffic or the settings on your network. Should this happen,
consult your network administrator.

• The monitor may not respond if the buttons shown on the browser are repeatedly pressed in rapid intervals. Should

this happen, wait a moment and repeat. If you still can’t get a response, turn the monitor off and then back on.

Preparation Before Use

Connect the monitor to the network, using a commercially available LAN cable, before attempting to use browser operations.

Operation with a browser that uses a proxy server may not be possible depending on the type of proxy server and the setting
method. Although the type of proxy server will be a factor, it is possible that items that have been set will not be shown,
depending on the effectiveness of the cache, and the contents set from the browser may not be reflected in operation. It is
recommended that a proxy server is not used unless the network environment requires it.

Handling of the Address for Operation via a Browser

A host name can be used in the following cases (corresponding to the IP address of the monitor):

The host name must be registered in the domain name system (DNS) by the network administrator. You can then access the
network settings of the monitor via this registered host name by using a compatible browser.

If the host name has been configured in the “HOSTS” file of the computer being used, you can then access the network settings
of the monitor via this host name by using a compatible browser.

Example 1: When the host name of the monitor has been set to “pd.nec.co.jp”, access is gained to the network setting by

specifying http://pd.nec.co.jp/index.html for the address or the entry column of the URL.

Example 2: When the IP address of the monitor is “192.168.73.1”, access is gained to the mail alert settings by specifying

http://192.168.73.1/index.html for the address or the entry column of the URL.

Operation

Access the following address to show HOME.

http://<the Monitor’s IP address>/index.html

Click each link on the left-hand column below HOME.

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OSD Menu Settings in the Monitor Web controls

Select one of the links on the left side of the monitor web controls to configure the settings available in the monitor’s OSD.
Please see page 75 for the full list of OSD menu controls.

[INPUT], [PICTURE], [AUDIO], [SCHEDULE], [SLOT], [NETWORK], [PROTECT], [SYSTEM]

NOTE:  The buttons in the monitor web controls function as follows:

[APPLY]: Saves the settings.

[CANCEL]: Returns to the previous settings.

NOTE: CANCEL is disabled after clicking APPLY.

[RELOAD]: Reloads the settings.

[RESET]: Resets to the initial settings.

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Network Settings

Click on “NETWORK” on the left-hand column below HOME.

IP SETTING Select an option for setting the IP ADDRESS.

AUTO: Automatically assign an IP address.
MANUAL: Manually set an IP address for the monitor connected to the network.
NOTE: Consult your network administrator if you have any trouble.

IP ADDRESS Set your IP address for the monitor connected to the network when [MANUAL] is selected for

[IP SETTING].

SUBNET MASK Set your subnet mask data for the monitor connected to the network when [MANUAL] is selected for

[IP SETTING].

DEFAULT GATEWAY Set your default gateway for the monitor connected to the network when [MANUAL] is selected for

[IP SETTING].
NOTE: Set as [0.0.0.0] to delete the setting.

DNS Set for IP ADDRESS setting of DNS server.

AUTO: The DNS server connected to the monitor will automatically assign its IP address.
MANUAL: Manually enter the IP address of the DNS server that is connected to the monitor.

PRIMARY DNS Enter the primary DNS server settings of the network connected to the monitor.

NOTE: Enter [0.0.0.0] to delete the setting.

SECONDARY DNS Enter the secondary DNS server settings of the network connected to the monitor.

NOTE: Enter [0.0.0.0] to delete the setting.

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Mail Setting

Click on “MAIL” on the left-hand column below HOME.

When the Mail settings are configured and enabled, the monitor sends email notifications when an error occurs or if the input
signal is lost. The monitor must be connected to a LAN for this feature to work.

Alert Mail When an error occurs, the monitor will send an error message to the email address(es) listed in

the Recipient’s Address fields. Please see the “Alert error list” table below.
Note that it is not an error when no input signal is detected. The monitor will only send a no signal
input notification email when Status Message is enabled.
Selecting [ENABLE] turns on the Alert Mail feature.
Selecting [DISABLE] turns off the Alert Mail feature.

Status Message This is a setting for whether to include the ‘no signal’ condition as an alerting condition or not.

Selecting [ENABLE], Alert Mail send mails when the monitor has no signal or is in alerting
conditions.
Selecting [DISABLE], Alert Mail send mails when the monitor is in alerting conditions.
It doesn’t send mail when the monitor has no signal.

Sender’s Address Type in the sender’s address. Up to 60 alphanumeric and symbols characters can be used.

SMTP Server Type in the SMTP server name to be connected with the monitor.

Up to 60 alphanumeric characters can be used.

Recipient’s Address
1 to 3

Authentication Method This selects the authentication method of the email transmission.

POP3 Server This specifies the address of the POP3 server that is used in the authentication of the email.

User Name This sets the user name for logging into the authentication server when authentication is required

Password This sets the password for logging into the authentication server when authentication is required

Test Mail Click on this button to send a test email to check if your settings are correct.

Type in your recipient’s address. Up to 60 alphanumeric and symbols characters can be used.

for the email transmission. Up to 60 alphanumeric characters can be used.

for the email transmission. Up to 60 alphanumeric characters can be used.

NOTE:  • If an alert email isn’t received when performing a Test Mail, check that the network and server settings, and the

recipient’s email address are correct.

• If you entered an incorrect address in a test, you may not receive an Alert email.

Should this happen, check that the Recipient’s Address is correct.

Alert error list

Error number *

ErrorCode

70h ~ 7Fh

80h ~ Fh The cooling fan has stopped. Cooling fan abnormal Please contact your supplier.

90h ~ 9Fh

A0h ~ AFh The monitor is overheated. Temperature abnormal Please contact your supplier.

B0h ~ BFh

D0h

D1h

E0h ~ EFh A system error occurred in the monitor. System error. Please contact your supplier.

The monitor’s power supply is not
functioning normally.

The monitor’s backlight unit is not
functioning normally.

The monitor does not receive an input
signal.

The remaining capacity of the error log
decreased.

The battery for clocks is empty. The battery is empty. Please connect the monitor to the

Alert mail Message Explanation Measure

Standby power abnormal Please contact your supplier.

Backlight abnormal Please contact your supplier.

No signal Please check “No picture” in

The Proof of Play log memory size is
1 more hour.

“Troubleshooting”.
Please get a log by using PD external

command. See page 61.

power then recharge the battery.
Please set (DATE & TIME) in OSD.

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SNMP Settings

Click on “SNMP” on the left-hand column below HOME.

The SNMP protocol is used to get status information and to control a monitor directly via the network.

Version:

SNMP v1 Authenticated plaintext by community name, does not return a confirmation message of the trap.

SNMP v2c Authenticated plaintext by community name, returns a confirmation message of the trap.

Community name:

The default setting of community name is “public”. It is read-only. You can set community names for up to 3 settings.

Trap:

Sending error message to a specified address when an error occurs in the monitor.

Check Box Explanation Error code

Temperature Temperature abnormal 0xA0, 0xA1, 0xA2

Fan Cooling fan abnormal 0x80, 0x81

Power Power abnormal 0x70, 0x71, 0x72, 0x78

Inverter/Backlight Inverter or backlight abnormal 0x90, 0x91

No Signal No signal 0xB0

PROOF OF PLAY Lower the log storage 0xD0

System Error System error 0xE0

AMX Settings

Click on “AMX” on the left-hand column below HOME.

AMX BEACON To turn on or off for the detection from AMX Device Discovery when connecting to a network

supported by an AMX’s NetLinx control system.

HINT:
When using a device that supports AMX Device Discovery, all AMX NetLinx control systems will
recognize the device and download the appropriate Device Discovery Module from an AMX server.
Selecting [ENABLE] AMX Device Discovery will detect the device.
Selecting [DISABLE] AMX Device Discovery will not detect the device.

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CRESTRON Settings

Click on “CRESTRON” on the left column below HOME.

CRESTRON ROOMVIEW compatibility

The monitor supports CRESTRON ROOMVIEW, allowing multiple devices connected in the network to be managed and
controlled from a computer or a controller.

For further information, visit http://www.crestron.com

ROOMVIEW ROOMVIEW for managing from the computer.

ON: Enables ROOMVIEW.
OFF: Disables ROOMVIEW.

CRESTRON
CONTROL

CONTROLLER IP
ADDRESS

IP ID Sets your CRESTRON SERVER IP ID.

HINT: The CRESTRON settings are required only for use with CRESTRON ROOMVIEW.

For further information, visit http://www.crestron.com

CRESTRON CONTROL for managing from the controller.
ON: Enables CRESTRON CONTROL.
OFF: Disables CRESTRON CONTROL.

Sets the IP address of the CRESTRON SERVER.

Name Settings

Click on “NAME” on the left-hand column below HOME.

MONITOR NAME Allows you to customize the monitor’s name, up to a maximum of 16 characters long. This name

is shown when searching for devices on the network when using an application such as NaViSet
Administrator. Giving the monitor a unique name allows it to be easily identified when viewing a list of
monitors on the network. The default name is the monitor’s model name.

HOST NAME Type in the hostname of the monitor which is connected to the network.

Up to 15 alphanumeric characters can be used.

DOMAIN NAME Type in the domain name of the network which is connected with the monitor.

Up to 60 alphanumeric characters can be used.

Network Service Settings

Click on “NETWORK SERVICE” on the left-hand column below HOME.

PJLink CLASS Set a class for PJLink*.

NOTE: PJLink is a network interface standard that JBMIA established.
http://pjlink.jbmia.or.jp/index.html
This monitor is available for class1 and class2 command.

NOTIFY FUNCTION
ENABLE

NOTIFY ADDRESS Set an IP ADDRESS to which the monitor network status will be sent. This function is only for class2.

PJLink PASSWORD Set a password for PJLink*. The password must be max. 32 characters long. Do not forget your

HTTP PASSWORD Set a password for the HTTP server. The password must be max. 10 characters long.

HTTP PASSWORD
ENABLE

*What is PJLink?

PJLink is a standardization of protocol used for controlling devices of different manufacturers. This standard protocol was
established by Japan Business Machine and Information System Industries Association (JBMIA) in 2005.

The device supports all commands of PJLink.

Enable or disable a notification of the monitor network condition. This function is only for class2.

password. If you forget your password, consult your supplier.

An HTTP PASSWORD is required when logging into the HTTP server.
Set the monitor name as the USER NAME when entering the password.

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Commands

Connecting the monitor to a computer via RS-232C or to a network via LAN allows for the transmission of commands to the
monitor, providing remote control of the monitor from a connected device.
Instructions for each command format can be found in the external documents “External_Control.pdf”. See page 73.

RS-232C Interface

PROTOCOL RS-232C
BAUD RATE 9600 [bps]
DATA LENGTH 8 [bits]
PARITY NONE
STOP BIT 1 [bit]
FLOW CONTROL NONE

LAN Interface

PROTOCOL TCP
PORT NUMBER 7142
COMMUNICATION SPEED AUTO setting (10/100Mbps)

ASCII Control command

This monitor supports control command, which is listed in the “External_Control.pdf” (See page 73), but also supports
common ASCII control command, which is used for controlling the NEC monitor or projector from a connected computer.
For further information please visit our website.

Parameter

Input command Status command

Input signal name Response Parameter Response Error status

HDMI1 hdmi1 hdmi1 or hdmi error:temp Temperature abnormal

HDMI2 hdmi2 hdmi2 error:fan Cooling fan abnormal

DisplayPort DisplayPort DisplayPor t error:light Inverter or backlight abnormal

Media Player mp mp error:system System error

OPTION option option

COMPUTE MODULE compute_module compute_module

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Proof of Play

This function allows sending of messages for the current status of the monitor by self-diagnosis.

For the Proof of Play function including self-diagnosis, please see the “External_Control.pdf”. See page 73.

Check item Message

a

INPUT DisplayPort, HDMI1, HDMI2, Media Player, COMPUTE MODULE, OPTION*

b

Resolution e.g. (H)1920, (V)1080, (H)3840, (V)2160 or No signal or Invalid signal

c

Audio signal Audio in or No Audio in or N/A

d

Picture Image Normal Picture or No Picture

e

AUDIO OUT Normal Audio or No Audio

f

TIME (year)/(month)/(day)/(hour)/(minutes)/(second)

00h: Normal Proof of Play event

01h: Proof of Play event is “last power on time”

10h: MEDIA PLAYER is stop

g

EXPANSION DATA

*: This function depends on which Option Board is installed in the monitor.

11h: MEDIA PLAYER is start

12h: MEDIA PLAYER is pause

13h: MEDIA PLAYER error occur

40h: Human detected (Human sensor Status)

41h: Human detect cleared (Human Sensor Status)

Example:

a

HDMI1

b

3840 x 2160

c

Audio in

d

Normal Picture

e

Normal Audio

f

2020/1/1/0h/0m/0s

g

10h: MEDIA PLAYER is stop

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Chapter 7 Troubleshooting

This Chapter Includes:

> “Screen Image and Video Signal Issues” on page 63

> “No picture” on page 63

> “Image persistence” on page 63

> “The image is blinking” on page 63

> “The image is unstable, unfocused or swimming is apparent” on page 64

> “The image is not properly reproduced” on page 64

> “Selected resolution is not displayed properly” on page 64

> “Video contrast is either too high or too low” on page 64

> “Hardware Issues” on page 64
> “⏻ button does not respond” on page 64

> “No sound” on page 64

> “The remote control is not functioning” on page 64

> “The SCHEDULE/OFF TIMER function is not working properly” on page 64

> “Snowy picture, poor Sound in TV” on page 65

> “The USB hub does not operate” on page 65

> “Interference in TV” on page 65

> “RS-232C or LAN control is not available” on page 65

> “The monitor goes into standby automatically” on page 65

> “Media player function does not recognize the USB storage device” on page 65

> “Power Indicator Patterns” on page 65

> “LED on the monitor is not lit (no blue or red color can be seen)” on page 65

> “LED colors, except for blue, are blinking or glowing” on page 65

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Screen Image and Video Signal Issues

No picture

• The signal cable should be completely connected to the
display card/computer.

• The display card should be completely seated in its slot.

• Check the main Power Switch, it should be in the ON
position.

• Make sure both the computer and monitor are powered
on.

• Make sure that a supported resolution has been selected
on the display card or system being used. If in doubt,
please refer to the user’s manual of the display controller
or system to change the resolution.

• Check the monitor and your display card with respect to
compatibility and recommended signal timings.

• Check the signal cable connector for bent or pushed-in
pins.

• The monitor automatically goes into standby at the
preset time period after the video signal is lost. Press
the power on button on the remote control or press the
⏻ button on the monitor.

• If you unplug the signal cable when starting the
computer, images may not be shown. Turn off the
monitor and the computer and then connect the signal
cable and turn on the computer and the monitor.

• Check the [SLOT POWER] setting when you use Option
Board accessories.

• Check for HDCP (High-bandwidth Digital Content
Protection) content. HDCP is a system for preventing
illegal copying of video data sent over a digital signal.
If you are unable to view material via the digital inputs,
this does not necessarily mean that the monitor is not
functioning properly. With the implementation of HDCP,
there may be cases in which certain content is protected
by HDCP and might not be shown due to the decision/
intention of the HDCP community (Digital Content
Protection, LLC).

Image persistence

• Please be aware that LCD Technology may experience
a phenomenon 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, the image persistence of monitors is not
permanent, but a single still image being shown for a
long period of time should be avoided. To alleviate image
persistence, put the monitor into standby via remote
control or turn the monitor’s main power off for as long as
the previous image was shown. For example, if an image
was on the monitor for one hour and a residual image
remains, the monitor should be in standby or turned off
for one hour to erase the image.

NOTE:  As with all personal display devices, NEC DISPLAY

SOLUTIONS recommends showing moving
images, using a moving screen saver, or changing
still images at regular intervals whenever the screen
is idle, or putting the monitor into standby or turning
it off when not in use.

The image is blinking

• If you use a signal repeater or distributor or a long
cable, this may cause image roughness or blink for a
moment. In this case please connect the cable to the
monitor directly without using a repeater or a distributor,
or replace the cable with a higher quality cable. Using
a twisted pair extender may cause image roughness
depending on the environment where the monitor is in or
the cable you are using. For further information please
ask your supplier.

• Some HDMI cables may not show a correct image.
If input resolution is 1920 x 2160, 3840 x 2160 or
4096 x 2160, please use an HDMI cable which is
approved to support 4K resolution.

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The image is unstable, unfocused or swimming is apparent

• The signal cable should be completely attached to the
computer.

• Please adjust settings in the [ADJUST] of the [PICTURE
MODE] by checking the image on the screen.

• When the display mode is changed, the OSD Image
Adjust settings may need to be re-adjusted.

• Check the monitor and your display card with respect to
compatibility and recommended signal timings.

• If text looks garbled, change the video mode to non­interlaced and use a 60 Hz refresh rate.

• The image may be distorted when turning the power on
or changing the settings.

The image is not properly reproduced

• Use the OSD Image Adjust controls to increase or
decrease the coarse adjustment.

• Make sure that a supported resolution has been selected
on the display card or system being used.

• If in doubt, please refer to the user’s manual of the
display card or system to change the resolution.

Selected resolution is not displayed properly

• Check the Information OSD to verify the appropriate
resolution has been selected.

• If the resolution you set is over or under a range, an
“OUT of RANGE” window will appear in order to warn
you. Please set supported resolution at the connected
computer.

Video contrast is either too high or too low

• Check that the correct option for the VIDEO LEVEL is
selected for the input signal.
This only applies to video signals on the DisplayPort,
HDMI, and OPTION inputs.

– Blacks are crushed and whites are clipped -

change the VIDEO LEVEL to RAW.
Crushing blacks and clipping whites can occur when
the monitor’s VIDEO LEVEL is set to EXPAND while
the source video signal’s color levels are RGB Full
(RGB 0-255), causing lost details in the shadows
and highlights and the image appears overly high in
contrast.

– Blacks are dark grey and whites are dull -

change the VIDEO LEVEL to EXPAND.
Dulling blacks and whites can occur when the VIDEO
LEVEL is set to RAW while the source video signal’s
color levels are RGB Limited (RGB 16-235), which
effectively appears to prevent the monitor from
obtaining its full brightness range and the image
appears to be lacking in contrast.

Either light vertical or horizontal stripes may appear, depending on the specific image pattern. This is not a product fault or degradation.

Hardware Issues

⏻ button does not respond

• Unplug the power cord of the monitor from the AC outlet
to turn off and reset the monitor.

• Check the main power switch on the monitor.

No sound

• Check to see if the audio cable is properly connected.

• Check to see if [MUTE] is activated. Use the remote
control to enable or disable the mute function.

• Check to see if [VOLUME] is set to a minimum.

• Check to see if the computer supports an audio signal
through DisplayPort.

If unsure, contact your supplier.

• An audio signal via the audio output connector cannot
be adjusted by [SURROUND] and [EQUALIZER] in the
OSD menu.

• If HDMI-CEC audio device is not connected, please set
[AUDIO RECEIVER] to [DISABLE].

The remote control is not functioning

• The batteries may be drained. Please change the
batteries, then check if the remote control works.

• Check that the batteries are inserted correctly.

• Check that the remote control is pointing at the remote
control sensor of the monitor.

• Check the status of [LOCK SETTINGS].

• The remote control system may not function when direct
sunlight or strong illumination strikes the remote control
sensor of the monitor, or when there is an object in the
path.

The SCHEDULE/OFF TIMER function is not working properly

• The [SCHEDULE] function will be disabled when the
[OFF TIMER] is set.

• If the [OFF TIMER] function is enabled and the power
to the monitor is turned off when the power supply is
interrupted unexpectedly, then the [OFF TIMER] will be
reset.

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Snowy picture, poor Sound in TV

• Check antenna/cable connection. Use new cable if
necessary.

The USB hub does not operate

• Check to make sure that the USB cable is properly
connected. Refer to your USB device user’s manual.

• Check that the USB upstream port on the monitor is
connected to the USB downstream port on the computer.
Please make sure the computer is [ON] or [USB
POWER] is [ON].

Interference in TV

• Check components for shielding, move away from
monitor if necessary.

RS-232C or LAN control is not available

• Check RS-232C (reverse type) or the LAN cable.
A category 5 or higher LAN cable is required for
connection.

The monitor goes into standby automatically

• Please check [OFF TIMER] setting.

• Set the [CEC] function to [OFF]. The monitor may go into
standby mode when a connected HDMI-CEC compatible
device goes into standby.

• Please check [POWER] in the [SCHEDULE
INFORMATION].

Media player function does not recognize the USB storage device

• Check that a USB storage device is connected to the
USB port.

• Check the file format of the USB storage device if it is
not recognized by the monitor.

Power Indicator Patterns

LED on the monitor is not lit (no blue or red color can be seen)

• Make sure the power cord is properly connected to the
monitor and the wall, and make sure the monitor’s main
power switch is ON.

• Make certain the computer is not in a power-saving
mode (touch the keyboard or move the mouse).

• Check that the [POWER INDICATOR] is set to [ON] in
the [CONTROL] settings of the OSD menu.

LED colors, except for blue, are blinking or glowing

• A certain failure might have occurred, please contact
your supplier.

• If the monitor is powered off due to the internal
temperature being higher than the normal operating
temperature, the LED will blink green or amber or red
for six times. Please leave the monitor to cool down for a
few minutes then turn it on again.

• The monitor could be in standby.

Press the power on button on the remote control or
press the ⏻ button on the monitor.

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Chapter 8 Specifications

This Chapter Includes:

> “Compatible Signal List” on page 67

> “M431” on page 68

> “M491” on page 69

> “M551” on page 70

> “M651” on page 71

English−66

Compatible Signal List

Signal name Resolution

VGA 640 x 480 31.5 kHz 60 Hz Yes Yes Ye s

SVGA 800 x 600 37.9 kHz 60 Hz Yes Yes Ye s

XGA 1024 x 768 48.4 kHz 60 Hz Ye s Ye s Ye s

HD 1280 x 720 45.0 kHz 60 Hz Ye s Yes Ye s

WXGA

SXGA 1280 x 1024 64 kHz 60 Hz Ye s Ye s Ye s

WXGA

SXGA+ 1400 x 1050 65.3 kHz 60 Hz Ye s Ye s Ye s

WXGA+ 1440 x 900 55.9 kHz 60 Hz Ye s Ye s Ye s

UXGA 1600 x 1200 75.0 kHz 60 Hz Ye s Ye s Ye s

WSXGA+ 1680 x 1050 65.3 kHz 60 Hz Ye s Ye s Ye s

Full HD 1920 x 1080 67.5 kHz 60 Hz Ye s Ye s Ye s

WUXGA 1920 x 1200 74.6 kHz 60 Hz No Ye s Ye s

4K/2 1920 x 2160 133.3 kHz 60 Hz No Ye s No

4K

HDTV (1080p)

HDTV (1080i)

HDTV (720p)

SDTV (576p) 720 x 576 31.3 kHz 50 Hz Yes Ye s Ye s
SDTV (480p) 720 x 480 31.5 kHz 60 Hz Yes Ye s Ye s

SDTV (576i) 720 x 576 (interlace) 15.6 kHz 50 Hz Ye s Ye s No
SDTV (480i) 720 x 480 (interlace) 15.7 kHz 60 Hz Ye s Ye s No

*: Only HBR2 is set.

1280 x 768 47.8 kHz 60 Hz Yes No Ye s
1280 x 800 49.7 kHz 60 Hz Yes Yes Ye s

1360 x 768 47.7 kHz 60 Hz Yes No Ye s
1366 x 768 47.7 kHz 60 Hz Yes No Ye s

3840 x 2160 54.0 kHz 24 Hz Ye s Ye s Ye s
3840 x 2160 56.3 kHz 25 Hz Ye s Ye s Ye s
3840 x 2160 65.7 kHz 30 Hz No No Ye s
3840 x 2160 67.5 kHz 30 Hz Ye s Ye s Ye s
3840 x 2160 112.5 kHz 50 Hz No Ye s Yes*
3840 x 2160 133.3 kHz 60 Hz No No Yes * Recommended resolution
3840 x 2160 135.0 kHz 60 Hz No Ye s Yes* Recommended resolution
4096 x 2160 54.0 kHz 24 Hz Ye s Ye s Ye s Compressed image
4096 x 2160 56.3 kHz 25 Hz No Ye s Ye s Compressed image
4096 x 2160 67.5 kHz 30 Hz No Ye s Ye s Compressed image
4096 x 2160 112.5 kHz 50 Hz No Ye s Yes* Compressed image
4096 x 2160 135.0 kHz 60 Hz No Ye s Yes* Compressed image
1920 x 1080 27.0 kHz 24 Hz Ye s Ye s Ye s
1920 x 1080 28.1 kHz 25 Hz Ye s Ye s Ye s
1920 x 1080 33.8 kHz 30 Hz Ye s Ye s Ye s
1920 x 1080 56.3 kHz 50 Hz Ye s Ye s Ye s

1920 x 1080 67.5 kHz 60 Hz Ye s Ye s Ye s
1920 x 1080 (interlace) 28.1 kHz 50 Hz Yes Ye s Ye s
1920 x 1080 (interlace) 33.8 KHz 60 Hz Yes Ye s Ye s

1280 x 720 37.5 kHz 50 Hz Yes Ye s Ye s
1280 x 720 45.0 kHz 60 Hz Yes Ye s Ye s

Scanning frequency HDMI

Horizontal Vertical MODE1 MODE2

DisplayPort Remarks

NOTE:  • Depending on the input signal’s resolution, characters may look blurred or figures may be distorted.

• Depending on the video card or driver used, the image may not be shown correctly.

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M431

Product Specifications

LCD Module

Frequency Horizontal:

Pixel Clock 25 - 600 MHz (HDMI/DisplayPort)

Viewable Size 941.18 x 529.42 mm

Input Signal

DisplayPort DisplayPort Connector Digital RGB DisplayPort (Up to 4096x2160 (60 Hz), HDCP 1.3/2.2)

HDMI HDMI Connector Digital YUV

AUDIO

AUDIO Input DisplayPort Connector Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

HDMI Connector Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

AUDIO
Output

Speaker Output Internal Speaker 10 W + 10 W (Stereo)

Control RS-232C In:

USB Power supply port, 5 V/2 A (max.)

Power Supply 1.8 - 0.9 A @ AC 100 - 240 V 50/60 Hz

Power Consumption Normal operation: Approx. 80 W

Operational Environment Temperature*1:

Storage Environment Temperature:

Dimension*

Weight 17.5 kg (38.6 lbs)

VESA compatible mounting interface 300 mm x 300 mm (M6, 4 Holes)

Power supply for Option Board 12 V/3.4 A

Power supply for Raspberry Pi Compute Module 12 V/1.67 A

NOTE: Technical specifications are subject to change without notice.

*1: When you use Option Board accessories, please contact your supplier for detailed information.
*2: Measurements are of the monitor only and do not include removable parts that protrude.
*3: HDMI1 only.

Stereo Mini Jack Analog Audio Stereo L/R 0.5 Vrms

HDMI (ARC)*

2

3

Pixel Pitch:

Resolution:

Brightness:
Contrast Ratio:
Viewing Angle:

Digital RGB

Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

Remote IN:

Humidity:

Humidity:

43”/108.0 cm diagonal

0.245 mm
3840 x 2160

Color:

Over 1073 million colors (depending on display card used)
500 cd/m2 (Max.) @25 °C
1000:1
89° (typ) @ CR>10

15 - 136 kHz

Vertical:

23 - 76 Hz

HDMI (Up to 4096x2160 (60 Hz), HDCP 1.4/2.2)

9 Pin D-sub

LAN:

RJ-45 10 BASE-T/100 BASE-TX
Stereo Mini Jack 3.5 mm Ø

Media Player/Firmware update port

0 - 40 °C / 32 - 104 °F
20 - 80 % (without condensation)

Altitude:

0 - 3000 m (Brightness may decrease with altitude)

–20 - 60 °C / –4 - 140 °F
10 - 80 % (without condensation) / 80 % - 3.5 % x (Temp - 40 °C) regarding over 40 °C

968.2 (W) x 561 (H) x 68.2 (D) mm/38.12 (W) x 22.09 (H) x 2.68 (D) inches (with handle)

968.2 (W) x 561 (H) x 67.1 (D) mm/38.12 (W) x 22.09 (H) x 2.64 (D) inches (without handle)

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M491

Product Specifications

LCD Module

Frequency Horizontal:

Pixel Clock 25 - 600 MHz (HDMI/DisplayPort)

Viewable Size 1073.80 x 604.00 mm

Input Signal

DisplayPort DisplayPort Connector Digital RGB DisplayPort (Up to 4096x2160 (60 Hz), HDCP 1.3/2.2)

HDMI HDMI Connector Digital YUV

AUDIO

AUDIO Input DisplayPort Connector Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

HDMI Connector Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

AUDIO
Output

Speaker Output Internal Speaker 10 W + 10 W (Stereo)

Control RS-232C In:

USB Power supply port, 5 V/2 A (max.)

Power Supply 2.5 - 1.1 A @ AC 100 - 240 V 50/60 Hz

Power Consumption Normal operation: Approx. 95 W

Operational Environment Temperature*1:

Storage Environment Temperature:

Dimension*

Weight 21.8 kg (48.1 lbs)

VESA compatible mounting interface 300 mm x 300 mm (M6, 4 Holes)

Power supply for Option Board 12 V/5.5 A

Power supply for Raspberry Pi Compute Module 12 V/1.67 A

NOTE: Technical specifications are subject to change without notice.

*1: When you use Option Board accessories, please contact your supplier for detailed information.
*2: Measurements are of the monitor only and do not include removable parts that protrude.
*3: HDMI1 only.

Stereo Mini Jack Analog Audio Stereo L/R 0.5 Vrms

HDMI (ARC)*

2

3

Pixel Pitch:

Resolution:

Brightness:
Contrast Ratio:
Viewing Angle:

Digital RGB

Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

Remote IN:

Humidity:

Humidity:

49”/123.2 cm diagonal

0.280 mm
3840 x 2160

Color:

Over 1073 million colors (depending on display card used)
500 cd/m2 (Max.) @25 °C
1100:1
89° (typ) @ CR>10

15 - 136 kHz

Vertical:

23 - 76 Hz

HDMI (Up to 4096x2160 (60 Hz), HDCP 1.4/2.2)

9 Pin D-sub

LAN:

RJ-45 10 BASE-T/100 BASE-TX
Stereo Mini Jack 3.5 mm Ø

Media Player/Firmware update port

0 - 40 °C / 32 - 104 °F
20 - 80 % (without condensation)

Altitude:

0 - 3000 m (Brightness may decrease with altitude)

–20 - 60 °C / –4 - 140 °F
10 - 80 % (without condensation) / 80 % - 3.5 % x (Temp - 40 °C) regarding over 40 °C

1103.4 (W) x 636.2 (H) x 71.9 (D) mm/43.44 (W) x 25.05 (H) x 2.83 (D) inches (with handle)

1103.4 (W) x 636.2 (H) x 61.1 (D) mm/43.44 (W) x 25.05 (H) x 2.41 (D) inches (without handle)

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M551

Product Specifications

LCD Module

Frequency Horizontal:

Pixel Clock 25 - 600 MHz (HDMI/DisplayPort)

Viewable Size 1209.60 x 680.40 mm

Input Signal

DisplayPort DisplayPort Connector Digital RGB DisplayPort (Up to 4096x2160 (60 Hz), HDCP 1.3/2.2)

HDMI HDMI Connector Digital YUV

AUDIO

AUDIO Input DisplayPort Connector Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

HDMI Connector Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

AUDIO
Output

Speaker Output Internal Speaker 10 W + 10 W (Stereo)

Control RS-232C In:

USB Power supply port, 5 V/2 A (max.)

Power Supply 2.8 - 1.1 A @ AC 100 - 240 V 50/60 Hz

Power Consumption Normal operation: Approx. 110 W

Operational Environment Temperature*1:

Storage Environment Temperature:

Dimension*

Weight 26.4 kg (58.2 lbs)

VESA compatible mounting interface 300 mm x 300 mm (M6, 4 Holes)

Power supply for Option Board 12 V/5.5 A

Power supply for Raspberry Pi Compute Module 12 V/1.67 A

NOTE: Technical specifications are subject to change without notice.

*1: When you use Option Board accessories, please contact your supplier for detailed information.
*2: Measurements are of the monitor only and do not include removable parts that protrude.
*3: HDMI1 only.

Stereo Mini Jack Analog Audio Stereo L/R 0.5 Vrms

HDMI (ARC)*

2

3

Pixel Pitch:

Resolution:

Brightness:
Contrast Ratio:
Viewing Angle:

Digital RGB

Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

Remote IN:

Humidity:

Humidity:

55”/138.8 cm diagonal

0.315 mm
3840 x 2160

Color:

Over 1073 million colors (depending on display card used)
500 cd/m2 (Max.) @25 °C
1100:1
89° (typ) @ CR>10

15 - 136 kHz

Vertical:

23 - 76 Hz

HDMI (Up to 4096x2160 (60 Hz), HDCP 1.4/2.2)

9 Pin D-sub

LAN:

RJ-45 10 BASE-T/100 BASE-TX
Stereo Mini Jack 3.5 mm Ø

Media Player/Firmware update port

0 - 40 °C / 32 - 104 °F
20 - 80 % (without condensation)

Altitude:

0 - 3000 m (Brightness may decrease with altitude)

–20 - 60 °C / –4 - 140 °F
10 - 80 % (without condensation) / 80 % - 3.5 % x (Temp - 40 °C) regarding over 40 °C

1239.6 (W) x 713 (H) x 71.9 (D) mm/48.8 (W) x 28.07 (H) x 2.83 (D) inches (with handle)

1239.6 (W) x 713 (H) x 61.1 (D) mm/48.8 (W) x 28.07 (H) x 2.41 (D) inches (without handle)

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M651

Product Specifications

LCD Module

Frequency Horizontal:

Pixel Clock 25 - 600 MHz (HDMI/DisplayPort)

Viewable Size 1428.48 x 803.52 mm

Input Signal

DisplayPort DisplayPort Connector Digital RGB DisplayPort (Up to 4096x2160 (60 Hz), HDCP 1.3/2.2)

HDMI HDMI Connector Digital YUV

AUDIO

AUDIO Input DisplayPort Connector Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

HDMI Connector Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

AUDIO
Output

Speaker Output Internal Speaker 10 W + 10 W (Stereo)

Control RS-232C In:

USB Power supply port, 5 V/2 A (max.)

Power Supply 2.9 - 1.2 A @ AC 100 - 240 V 50/60 Hz

Power Consumption Normal operation: Approx. 120 W

Operational Environment Temperature*1:

Storage Environment Temperature:

Dimension*

Weight 37.1 kg (81.8 lbs)

VESA compatible mounting interface 400 mm x 400 mm (M8, 4 Holes)

Power supply for Option Board 12 V/5.5 A

Power supply for Raspberry Pi Compute Module 12 V/1.67 A

NOTE: Technical specifications are subject to change without notice.

*1: When you use Option Board accessories, please contact your supplier for detailed information.
*2: Measurements are of the monitor only and do not include removable parts that protrude.
*3: HDMI1 only.

Stereo Mini Jack Analog Audio Stereo L/R 0.5 Vrms

HDMI (ARC)*

2

3

Pixel Pitch:

Resolution:

Brightness:
Contrast Ratio:
Viewing Angle:

Digital RGB

Digital Audio PCM 32, 44.1, 48 kHz (16/20/24 bit)

Remote IN:

Humidity:

Humidity:

65”/163.9 cm diagonal

0.372 mm
3840 x 2160

Color:

Over 1073 million colors (depending on display card used)
500 cd/m2 (Max.) @25 °C
1100:1
89° (typ) @ CR>10

15 - 136 kHz

Vertical:

23 - 76 Hz

HDMI (Up to 4096x2160 (60 Hz), HDCP 1.4/2.2)

9 Pin D-sub

LAN:

RJ-45 10 BASE-T/100 BASE-TX
Stereo Mini Jack 3.5 mm Ø

Media Player/Firmware update port

0 - 40 °C / 32 - 104 °F
20 - 80 % (without condensation)

Altitude:

0 - 3000 m (Brightness may decrease with altitude)

–20 - 60 °C / –4 - 140 °F
10 - 80 % (without condensation) / 80 % - 3.5 % x (Temp - 40 °C) regarding over 40 °C

1458.4 (W) x 836.2 (H) x 73.4 (D) mm/57.42 (W) x 32.92 (H) x 2.88 (D) inches (with handle)

1458.4 (W) x 836.2 (H) x 62.6 (D) mm/57.42 (W) x 32.92 (H) x 2.46 (D) inches (without handle)

English−71

Appendix A Trademark and

Software License

Trademarks

Microsoft® and Windows® are either registered trademarks or trademarks of Microsoft Corporation in the United States
and/or other countries.

NEC is a registered trademark of NEC Corporation.

DisplayPort™ and the DisplayPort™ logo are trademarks owned by the Video Electronics Standards Association (VESA®) in
the United States and other countries.

MultiSync is a trademark or registered trademark of NEC Display Solutions, Ltd. in Japan and other countries.

All other brands and product names are trademarks or registered trademarks of their respective owners.

The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or
registered trademarks of HDMI Licensing Administrator, Inc. in the United States and other countries.

PJLink trademark and logo are trademarks applied for registration or are already registered in Japan, the United States of
America and other countries and areas.

CRESTRON and CRESTRON ROOMVIEW are trademarks or registered trademarks of Crestron Electronics, Inc. in the United States and other countries.

NaViSet is a trademark or registered trademark of NEC Display Solutions, Ltd. in Japan and other countries.

Blu-ray is a trademark of Blu-ray Disc Association.

TILE COMP and TILE MATRIX are trademarks or registered trademarks of NEC Display Solutions, Ltd. in Japan and other countries.

Intel and the Intel logo are trademarks of Intel Corporation or its subsidiaries.

[Notice] About the MPEG-4 AVC,

MPEG-4 Visual license included in this product

1. MPEG AVC

THIS PRODUCT IS LICENSED UNDER THE AVC PATENT PORTFOLIO LICENSE FOR THE PERSONAL USE OF A CONSUMER
OR OTHER USES IN WHICH IT DOES NOT RECEIVE REMUNERATION TO (i) ENCODE VIDEO IN COMPLIANCE WITH THE
AVC STANDARD (“AVC VIDEO”) AND/OR (ii) DECODE AVC VIDEO THAT WAS ENCODED BY A CONSUMER ENGAGED IN
A PERSONAL ACTIVITY AND/OR WAS OBTAINED FROM A VIDEO PROVIDER LICENSED TO PROVIDE AVC VIDEO. NO
LICENSE IS GRANTED OR SHALL BE IMPLIED FOR ANY OTHER USE. ADDITIONAL INFORMATION MAY BE OBTAINED
FROM MPEG LA, L.L.C. SEE HTTP://WWW.MPEGLA.COM

2. MPEG-4 Visual

THIS PRODUCT IS LICENSED UNDER THE MPEG-4 VISUAL PATENT PORTFOLIO LICENSE FOR THE PERSONAL AND
NON-COMMERCIAL USE OF A CONSUMER FOR (i) ENCODING VIDEO IN COMPLIANCE WITH THE MPEG-4 VISUAL
STANDARD (“MPEG-4 VIDEO”) AND/OR (ii) DECODING MPEG-4 VIDEO THAT WAS ENCODED BY A CONSUMER ENGAGED
IN A PERSONAL AND NONCOMMERCIAL ACTIVITY AND/OR WAS OBTAINED FROM A VIDEO PROVIDER LICENSED
BY MPEG LA TO PROVIDE MPEG-4 VIDEO. NO LICENSE IS GRANTED OR SHALL BE IMPLIED FOR ANY OTHER USE.
ADDITIONAL INFORMATION INCLUDING THAT RELATING TO PROMOTIONAL, INTERNAL AND COMMERCIAL USES AND
LICENSING MAY BE OBTAINED FROM MPEG LA, LLC. SEE HTTP://WWW.MPEGLA.COM.

English−72

Appendix B External Resources

Additional specification documents and accessories, and optional software applications referenced in this product manual are
listed below.

NEC Display Solutions regional websites

Global: https://www.nec-display.com/global/

Asia-Pacific: https://www.nec-display.com/ap/contact/

North America: https://www.necdisplay.com

Europe, Russia, Middle East and Africa: https://www.nec-display-solutions.com

Japan: https://www.nec-display.com/jp/

Additional Documentation

“NEC LCD Monitor - External Control” PDF document

This document defines the communications protocol for externally controlling and querying the monitor via either RS-232C or
LAN. The protocol uses encoded binary and requires calculation of checksums, and most functionality in the monitor can be
controlled using these commands. A simpler protocol is also available for less demanding applications (see below).

This document is available for download from the NEC Display Solutions website in your region.

A Python programming language based SDK (Software Development Kit) is also available that encapsulates this
communications protocol into a Python library for rapid development.

https://github.com/NECDisplaySolutions/necpdsdk

“Projector/Monitor Common ASCII Control Command - Reference Manual” PDF document

This document defines the communications protocol for externally controlling the basic functions of the monitor via LAN using a
simple English-like syntax. It is suitable for easy integration into existing control systems. Functionality such as controlling and
querying the power state, video inputs, volume, and status is available. The protocol uses ASCII encoding and doesn’t require
calculation of checksums.

This document is available for download from the NEC Display Solutions website in your region.

“Raspberry Pi Compute Module - Setup Guide” PDF document

This document describes the features, installation, connectivity, and configuration of the Raspberry Pi Compute
Module, which is an optional component available for this model. The required DS1-IF10CE Compute Module
Interface Board and Raspberry Pi Compute Module are available separately. Please contact an authorized NEC
dealer or visit the NEC Display Solutions website in your region for purchase information and availability.

This document can be downloaded from:

https://www.nec-display.com/dl/en/manual/raspberrypi/

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Software

Software is available for download on the NEC Display Solutions global website.

https://www.nec-display.com/dl/en/dp_soft/lineup.html

NEC Display Wall Calibrator software

This software provides advanced video wall configuration and accurate color matching by calibrating the monitors
using an external color sensor. It is useful when setting up multi-monitor installations - such as a video wall - to
achieve the best possible brightness and color matching between screens and configuring settings applicable to the

video wall. The software, available for Microsoft Windows and macOS, is available for purchase and may require the
use of a supported external color sensor. Please contact an authorized NEC dealer or see the NEC Display Solutions website in
your region for purchase information and availability.

NaViSet Administrator software

This free software is an advanced and powerful network based control, monitoring and asset management system for

NEC display monitors and projectors. The software is available for Microsoft Windows and macOS.

The latest version of the NaViSet Administrator software is available on the NEC Display Solutions website.

Hardware

MDSVSENSOR 3 USB Color Sensor

This customized X-Rite color sensor can be used with the NEC Display Wall Calibrator software listed above. Please contact an
authorized NEC dealer or see the NEC Display Solutions website in your region for purchase information and availability.

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Appendix C OSD Controls List

This Chapter Includes

> “INPUT” on page 76

> “PICTURE” on page 78

> “AUDIO” on page 81

> “SCHEDULE” on page 82

> “SLOT” on page 83

> “NETWORK” on page 85

> “PROTECT” on page 86

> “SYSTEM” on page 89

Default values can be provided on request.

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INPUT

INPUT MENU

INPUT SELECT

DisplayPort Selects the input signals source.

HDMI1

HDMI2

Media Player

COMPUTE MODULE*

OPTION*

1

INPUT SETTINGS

INPUT NAME Renames the current input.

AUTO INPUT CHANGE*

NONE The monitor does not search for video signal on the other input connections.

FIRST DETECT*

LAST DETECT*

CUSTOM DETECT The monitor only searches for video signal on the inputs selected for the priority numbers. If the signal

4

Custom names with a maximum of 14 characters, including spaces, can be set. The characters can be a
mix of letters (A-Z), numbers (0-9), and some symbols.

2

When enabled, this option can detect and change inputs when a signal is applied or lost. Allows for
customization of the input priority.

NOTE: This option is unavailable when these OSD menu options are enabled:

• [HUMAN SENSING] is [ENABLED] in the [AUTO DIMMING] settings in the [CONTROL] menu.

If video signal is lost on the current input, or if the monitor is manually switched to an input that does not
have video signal, the screen will go black and the LED will flash green. If [POWER SAVE] is enabled, the
monitor will enter power saving mode after the period of time set for [POWER SAVE] has passed.

3

The monitor does not search for a video signal on the other input connections while the current input has a
video signal.

If the current input connection does not have video signal present, the monitor will search for video signal
on the other video input connections. If a video signal is found, the monitor will switch from the current
input to the input with the active video source automatically.

3

The monitor actively searches for a video signal on the other input connections, even while the current
video signal is present. When a new video signal source is applied to another input connection, the monitor
automatically switches to the newly found video source.

If the video signal is lost on the current input connection, the monitor will search for video signal on the
other video input connections. If a video signal is found, the monitor will switch from the current input to the
input with the active video source automatically.

is lost, the monitor searches for signal in the priority order and automatically switches to the highest
priority input it finds with an active video signal. The monitor actively searches these inputs. If the current
signal input is not Priority 1 and a new signal is applied to the input assigned to Priority 1, the monitor will
automatically switch to the higher priority input.

NOTE: • [Media Player] will only work when a USB storage device is connected.

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INPUT MENU

ADVANCED

INPUT SIGNAL SETTINGS

DisplayPort

BIT RATE Selects [HBR] or [HBR2].

HDMI Sets the HDMI mode.

MODE1: Max resolution is 3840 x 2160 (30 Hz).

MODE2: Max resolution is 3840 x 2160 (60 Hz), HDCP 2.2, or HDR.

Media Player Configures the autoplay settings for the Media Player.

OFF: Does not automatically play any files.

Photo: Automatically plays picture (still image) files.

Music: Automatically plays music files.

Movie: Automatically plays video files.

When using any setting other than [OFF], play files in the USB storage device’s “AUTO_PLAY” folder
automatically in the following cases:

- When the power is turned off and on with [Media Player] set as the input signal.

- When the [INPUT SELECT] is [Media Player].

NOTE: • Playback is in order of file name; in priority first numerically (ascending order), then

alphabetically (ascending order).

• Using this setting in conjunction with [AUTO INPUT CHANGE], the system switches to “Media

Player” and automatically plays the selected file when the input signal is lost.

OVERSCAN*

3

Some video formats may require different scanning modes in order to best show the image.

NOTE: This function is not available when [MOTION] in [SCREEN SAVER] is active.

ON The image is scaled to best fit the screen without changing the aspect ratio. Some images will have

cropped edges.

Approximately 95 % of the image will be shown on the screen.

OFF The whole image is displayed within the screen area. This setting may cause distorted image at the edges.

NOTE: When you use a computer with HDMI out, please set [OFF].

AUTO Image size is set automatically.

VIDEO RANGE*

3

Adjust the gradation range to be shown according to the video signal to improve the whiteout and blackout
of the image.

NOTE: This function is available only in [HDMI] or [DisplayPort] or [OPTION] and is selected at [INPUT

SIGNAL].

RAW SIGNAL For computer settings. Show all input signals of 0-255 gray levels.

EXPANDED SIGNAL For audio-visual equipment settings. Expands the input signals from 16-235 gray levels to 0-255 gray

levels.

AUTO Automatically sets input signals by adjusting connected equipment.

CEC Provides CEC (Consumer Electronics Control) compatible media players, connected via HDMI, the ability

to communicate and allows limited control between the device and the monitor. Only available for HDMI
inputs.

CEC When [MODE1] or [MODE2] is selected, the following functions are automatically activated:

- When a connected HDMI-CEC media device plays, the monitor will turn on and/or change to the HDMI
input with the connected media device.

- The monitor’s wireless remote control can be used to control some of the media player device functions.

When [MODE1] is selected, the wireless remote control CEC functions are:
1 (9), 2 (4), 3 (:), 5 (<), 6 (;), ENT, EXIT, , , +, –, MUTE, VOL+, VOL–.

When [MODE2] is selected, the wireless remote control CEC functions are:
0 to 9 and – in the keypad, ENT, EXIT, , , +, –, GUIDE, MUTE, SET/POINT ZOOM, VOL+, VOL–,
CH/ZOOM+, CH/ZOOM–.

Depending on the type of the connected device, the CEC functions may not work as described.

Not all manufacturers provide the same level of CEC integration and control, or they may only provide
support for their products.

AUTO TURN OFF The HDMI-CEC compatible device goes into standby at the same time as the monitor when the STANDBY

button is pressed on the remote control, or when the ⏻ button is pressed on the monitor.

NOTE: The connected HDMI-CEC compatible device may not go into standby if it is recording.

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INPUT MENU

AUDIO RECEIVER When [ENABLE] is selected, the internal speaker is muted and connected audio equipment with ARC

function outputs the sound.

When [DISABLE] is selected, connected audio equipment with ARC function is muted and the internal
speaker outputs the sound.

NOTE: • It may take a while to output the sound when changing [AUDIO RECEIVER] settings; but this

is not a failure of the monitor.

SEARCH DEVICE Searches the HDMI input for a connected HDMI-CEC compatible device. If a device is found, the

connected HDMI-CEC compatible device’s type and registered device name are shown.

After detecting HDMI-CEC compatible devices, you can switch the device input by selecting the device.

SIGNAL FORMAT Selects the color space setting and RBG for the HDMI/DisplayPort signal.

SIDE BORDER COLOR*

3

Adjusts the color of the borders that show when an image does not fill the entire screen.

Press the + button to make the borders lighter, the level can be increased until the color is white.

Press the – button to make the borders darker, the level can be decreased until the color is black.

RESET Resets all input menu settings back to factory settings except for [INPUT NAME] and [AUTO INPUT

CHANGE].

*1: This function depends on which Option Board you are using. This function is only available when Option Board is installed.
*2: Depending on the device, it may not be detected correctly.
*3: Except for Media Player.
*4: This function is only available when Raspberry Pi Compute Module Interface Board and Raspberry Pi Compute Module are installed. See page 73.

PICTURE

PICTURE MENU

PICTURE MODE Provides pre-configured picture settings suitable for various environments where this device may be used,

or customize settings to viewer preference.

NATIVE Standard setting.

RETAIL Bright, vivid colors ideal for advertising and branding.

CONFERENCING Lower color temperature and optimized for natural human complexions.

HIGHBRIGHT Maximum backlight brightness with higher color temperature for brighter ambient environments.

TRANSPORTATION Maximum backlight brightness with high contrast to read text under all conditions.

CUSTOM Customizable settings.

BACKLIGHT Adjusts the overall image and background brightness. Press [+] or [–] to adjust.

NOTE: When [ON] is selected in [AMBIENT LIGHT SENSING] at [ADVANCED], this function cannot be

changed.

BACKLIGHT DIMMING*

1

Automatically adjusts each of the clusters of the backlight of the LCD independently, according to the input
signal.

VIDEO BLACK LEVEL Adjusts the black luminance. When the setting is too low to show, the OSD characters are changed to

green.

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PICTURE MENU

GAMMA Select a monitor gamma correction for best picture quality. Selection depends on the desired usage.

NATIVE Gamma correction is handled by the LCD panel.

2.2 Typical monitor gamma for use with a computer.

2.4 Typical gamma settings for use with videos, such as DVDs and Blu-rays.

S GAMMA Special gamma for certain types of movies. Raises the light parts and lowers the dark parts of the image

(S-Curve).

NOTE: Do not use for diagnostic purposes.

DICOM SIM. DICOM GSDF curve simulated for LCD type.

PROGRAMMABLE1, 2, 3 A programmable gamma curve can be loaded using optional NEC software.

COLOR

COLOR Adjusts the color saturation of the screen. Press + or – button to adjust.

COLOR TEMPERATURE Adjusts the color temperature of the entire screen. A low color temperature will result in a reddish screen.

A high color temperature will make the screen bluish. If a temperature needs further adjustment, the
individual R/G/B/ levels of the white point can be adjusted. To adjust the R/G/B levels, set [CUSTOM] as
[COLOR TEMP] selection.

NOTE: When [PROGRAMMABLE1], [PROGRAMMABLE2] or [PROGRAMMABLE3] is selected in

[GAMMA], this function cannot be changed.

COLOR CONTROL Adjusts the hue of the Red, Yellow, Green, Cyan, Blue and Magenta colors individually. For example, you

can change red to yellow or purple.

CONTRAST Adjusts the image brightness in relationship to the input signal. Press + or – button to adjust.

ADVANCED

HDR MODE When the monitor detects an HDR signal, you can select preferred gamma correction from [LOW],

[MIDDLE] or [HIGH].

SHARPNESS Adjusts the crispness of the image. Press + or – button to adjust.

ASPECT Select the aspect ratio of the screen image.

NOTE: • If you change [H POSITION] and [V POSITION] settings with a reduced image, the image will

not be changed.

• The [ASPECT] automatically changes to [FULL] when the [SCREEN SAVER] starts. When the

[SCREEN SAVER] stops, the [ASPECT] returns to its previous setting.

• This function is not available when [MOTION] in [SCREEN SAVER] is active.

• [ZOOM] is not available for an image with an input resolution of 4K.

NORMAL Shows the aspect ratio as it is sent from the source.

FULL Fills the entire screen.

WIDE Expands a 16:9 letterbox signal to fill the entire screen.

1:1 Shows the image in a 1 by 1 Pixel format. (If the input resolution is higher than the recommended

resolution, the image will be scaled down to fit the screen).

ZOOM Expands/reduces the image.

NOTE: The areas of the expanded image that are outside of the active screen area are not shown.

The reduced image may have some image degradation.

ZOOM Maintains the aspect ratio while zooming.

HZOOM Horizontal zoom value.

VZOOM Vertical zoom value.

H POS Horizontal position.

V POS Vertical position.

ADAPTIVE CONTRAST*

2

Sets the level of adjustment for dynamic contrast.

If [HIGH] is set, the image is shown clearly but it makes brightness unstable due to the wide gap in
contrast variation.

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PICTURE MENU

AUTO DIMMING Adjusts the backlight of the LCD automatically depending on the amount of ambient light.

AUTO BRIGHTNESS Adjusts the brightness level according to the input signal.

AMBIENT LIGHT
SENSING

The backlight of the LCD panel can be set to increase or decrease depending on the amount of ambient
light within the room. If the room is bright, the monitor becomes correspondingly bright.

If the room is dim, then the monitor will dim accordingly. The purpose of this function is to make the viewing
experience more comfortable to the eye in a variety of lighting conditions.

The ambient parameter setting:

[AMBIENT LIGHT SENSING] in OSD, select [ON] and set [ILLUMINANCE] and [BACKLIGHT].

IN BRIGHT: Setting to use in a bright room.

ILLUMINANCE - The illuminance level in a bright room.

BACKLIGHT - The maximum level of backlight in a bright room.

IN DARK: Setting to use in a dim room.

ILLUMINANCE - The illuminance level in a dim room.

BACKLIGHT - The minimum level of backlight in a dim room.

STATUS: Shows the current setting level of [ILLUMINANCE] and [BACKLIGHT].

When the [AMBIENT LIGHT SENSING] is enabled the Backlight level of the screen changes automatically
according to the lighting conditions of the room (see figure below).

100%

BACKLIGHT level set for
the monitor to use when
amibient lighting is low.

BACKLIGHT level set for
the monitor to use when
amibient lighting is high.

BACKLIGHT variable range.

BACKLIGHT setting range.

0% 100%

Dark BrightRoom bright condition

L - ILLUMINANCE level set for the monitor to use when ambient lighting is low.
H - ILLUMINANCE level set for the monitor to use when ambient lighting is high.

L H

0%

NOTE: • When setting to [ON], [BACKLIGHT] cannot be changed.

• Do not cover the optional sensor unit when [AMBIENT LIGHT SENSING] is enabled.

[AMBIENT LIGHT SENSING] is enabled when it is set to [ON].

HUMAN SENSING*

1

Automatically adjusts the backlight and volume levels based on whether or not a human presence is
detected in front of the monitor.

NOTE: Human sensing is automatically disabled if [AUTO INPUT CHANGE] is set while [HUMAN

SENSING] is active.

[POWER SAVE] is disabled when [AUTO OFF] or [CUSTOM] is selected in [HUMAN SENSING].

DISABLE Human sensing function is off.

AUTO OFF The monitor’s backlight automatically turns off, and the volume mutes when no human presence is

detected during the period set at [WAITING TIME].

When a person is near the monitor again, the monitor will automatically return to normal mode.

CUSTOM The monitor’s input signal, backlight and volume levels automatically shift to the setting at [INPUT

SELECT], [BACKLIGHT] and [VOLUME] when no human presence is detected during the period set at
[WAITING TIME].

When a person is near the monitor again, the monitor will automatically return the backlight and volume to
normal levels and reproduce the input signal selected for [INPUT SELECT].

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PICTURE MENU

TILE MATRIX Allows one image to be expanded and shown over multiple screens (up to 100) through a distribution

H MONITORS Number of monitors arranged horizontally.

V MONITORS Number of monitors arranged vertically.

POSITION Select the section of the tiled image to view on the current monitor.

TILE COMP Adjusts the image to compensate for the gap between monitors.

CONFIRM SETTINGS Starts the Tile Matrix.

RESET Resets all picture menu settings back to factory settings except for [PICTURE MODE].

*1: The function is available only when connecting the optional sensor unit.
*2: Except for RGB signal.

amplifier. This option is for manually configuring the TILE MATRIX settings that are automatically
configured when using [AUTO TILE MATRIX SETUP].

NOTE: • Low resolution is not suitable for tiling to a large number of monitors.

• You can operate without a distribution amplifier at a lower number of screens.

• If [ZOOM] is the selected aspect setting, they function as [FULL] aspect when the tile matrix is

active. While the tile matrix is active, changing the aspect setting to [ZOOM] or changing the
zoom level, does not affect the picture. When the tile matrix deactivates, any settings changed
while the tile matrix was active are immediately applied.

• If Media Player contents are played while [TILE MATRIX] is active, the image play timing might

have a gap within monitors.

• When input signal is 4K, [TILE MATRIX] is not available.

When activated, the image size and position can be adjusted by pressing the + or – button on the remote
control.

AUDIO

AUDIO MENU

AUDIO MODE Provides pre-configured audio settings suitable for various environments where this device may be used,

NATIVE Standard setting.

RETAIL Surround sound for clarity of audio in retail stores.

CONFERENCING Optimized settings for clarity of audio in conference rooms.

HIGHBRIGHT Lowest volume level in order to focus on the visual message (audio is mute).

TRANSPORTATION Lowest volume level in order to avoid disturbance in public spaces (audio is mute).

CUSTOM Customizable settings.

VOLUME Increase or decrease output volume level.

BALANCE Select [STEREO] or [MONO] for the audio output.

STEREO/MONO STEREO: Independent audio channels for routing audio signal. Sound balance between the left and right

BALANCE Press the + button to move the audio signal to the right.

SURROUND Artificially produces surround sound audio.

or customize settings to viewer preference.

speakers can be adjusted.

MONO: Audio signals are routed through a single audio channel. Balance cannot be adjusted and the
slider will be unavailable.

Press the – button to move the audio signal to the left.

NOTE: This function is not available when [MONO] is selected.

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AUDIO MENU

EQUALIZER

TREBLE Accentuates or reduces the high frequency range of audio signals.

Press the + button to increase [TREBLE].

Press the – button to decrease [TREBLE].

BASS Accentuates or reduces the low frequency sound.

Press the + button to increase [BASS].

Press the – button to decrease [BASS].

ADVANCED

LINE OUT Selecting [VARIABLE] enables control of the line out level with the VOLUME button on the remote control

AUDIO DELAY

AUDIO DELAY Select this option if there is a noticeable delay between the video image and the audio signal output. When

DELAY TIME

INTERNAL SPEAKER Selecting [OFF] stops internal speakers output.

RESET Resets all audio menu settings back to factory settings except for [AUDIO MODE].

or monitor control panel.

this option is on, the audio signal can be delayed between 0 to 100 milliseconds. This allows delays in the
video, that may occur due to video processing such as DEINTERLACE, to be matched by an equal delay
in the audio signal to avoid lip-sync errors.

SCHEDULE

SCHEDULE MENU

SCHEDULE INFORMATION Creates a working schedule for the monitor (see page 44).

Press the , , +, – buttons to navigate and change the schedule settings. Press the SET/POINT ZOOM
button on the remote control or Input change buttons on the monitor to select settings.

NOTE: • The [DATE & TIME] needs to be set before adding schedules.

• Schedules you configure are saved when exiting the [SCHEDULE INFORMATION] window.

• If multiple schedules are set to start at the same time, the conflicting schedule with the highest

number is given priority.

• Schedules will not run when the [OFF TIMER] is set to [ON].

• Schedules do not run while the [SCHEDULE INFORMATION] menu is open.

SETTINGS Highlight the number and press SET/POINT ZOOM button to activate the schedule. The box next to the

POWER Sets the monitor’s power state for the schedule. Select [ON] if you want the schedule to turn the monitor on

TIME Set the start time for the schedule.

INPUT Select which video input to use for the schedule. To keep the active input when the schedule starts, make

DAT E

YEAR Select this option if the schedule is only going to run on one day or it is an irregular schedule.

MONTH

DAY

EVERY WEEK Select this option to have the schedule repeat every week.

OFF TIMER Powers off the monitor after the time period shown next to the slider. Press the + or – button on the remote

RESET Resets all schedule menu settings back to factory setting, except for [OFF TIMER].

number has an outline when the schedule is enabled. Up to 14 schedules can be created and enabled.
Press the + or – button to cycle through schedule numbers.

at the specified time. Select [OFF] if you want the schedule to turn the monitor off at the specified time.

NOTE: Fill in both fields for the TIME setting. If either field shows [--], the schedule does not run.

sure the setting is [--].

If you do select a specific input, set [ON] at [POWER].

control to adjust the timer from 1 to 24 hours.

NOTE: Schedules do not run when the [OFF TIMER] is set to [ON].

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SLOT

SLOT MENU

ACTIVE SLOT Sets the active Option Board slot.

NOTE: Only the selected input will work.

OPTION*

COMPUTE MODULE Configure settings for a Raspberry Pi Compute Module Interface Board and Raspberry Pi Compute

1

Configure settings for a connected Option Board.

POWER CONTROL

POWER SUPPLY Controls power to an Option Board.

Select [ON] then press SET on the remote control to power on the device.

Select [OFF] then press SET on the remote control to power off the device.

NOTE: The option that is highlighted under [POWER SUPPLY] when you open the [POWER CONTROL]

menu indicates the current power status. If [YES] is highlighted, the power is on. If [NO] is
highlighted, the power is off.

POWER BUTTON Allows the same operation as the power button on the installed Option Board.

FORCE SHUTDOWN Press [YES] to force a shutdown of the installed Option Board.

NOTE: Please use this function only when the operating system cannot be shut down manually.

RESET Press [YES] to force a shutdown and restart of the Option Board when it does not respond to shutdown

using the [POWER BUTTON] or [FORCE SHUTDOWN] function.

NOTE: This function may corrupt data files on the Option Board or data files on a storage device

connected to an installed Option Board.
Please only use this function when [POWER BUTTON] and [FORCE SHUTDOWN] cannot be
carried out.

Connection Status*

3

Shows the connection status of an Option Board. If the status is not “Connected” then a device is not
installed.

Power Status*

Module*

3

3

Shows the operating status of the installed Option Board.

Shows information about the installed Option Board.

POWER SETTING

AUTO POWER UP The installed Option Board will be turned on automatically when the monitor power is turned on.

AUTO SHUTDOWN*

POWER SUPPLY OFF
DELAY

2, *4

The installed Option Board is turned off when the monitor is switched into standby mode.

When [OFF] is selected at [SLOT POWER], this sets the time delay after [AUTO SHUTDOWN] is executed
until the power to the Option Board is turned off.

AUTO DISPLAY OFF Allows to the monitor switch into the same status when the installed device goes into standby or power

save mode.

OFF WARNING Shows a warning, when shutting down the power to the Option Board, that the device should be turned off

from within the OS of the device. This message cannot be changed.

This function is available when [POWER SUPPLY] is [OFF].

Module.

POWER CONTROL

POWER SUPPLY Controls power to the Compute Module.

Select [ON] then press SET on the remote control to power on the device.

Select [OFF] then press SET on the remote control to power off the device.

NOTE: The option that is highlighted under [POWER SUPPLY] when you open the [POWER CONTROL]

menu indicates the current power status. If [YES] is highlighted, the power is on. If [NO] is
highlighted, the power is off.

POWER BUTTON Performs a normal shut down of the Compute Module.

RESET Press [YES] to force a shutdown and restart of the Compute Module when it does not respond to

shutdown using the [POWER BUTTON] function.

NOTE: Press SET to force a shutdown and restart of the Compute Module when it does not respond to

shutdown using the [POWER BUTTON] function.

Connection Status Shows the connection status of a Compute Module. If the status is not “Connected” then a device is not

installed.

Power Status Shows the operating status of the Compute Module.

Module Shows information about the Compute Module Interface Board.

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SLOT MENU

POWER SETTING

AUTO POWER UP The Compute Module will be turned on automatically when the monitor power is turned on.

AUTO SHUTDOWN The Compute Module is turned off when the monitor switches into standby mode.

POWER SUPPLY
OFF DELAY

This sets the time delay after the Shutdown Signal is set until the power to the Compute Module is turned
off.

Configure this to allow adequate time for any software to shutdown safely.

AUTO DISPLAY OFF When [DISABLE] is selected, automatically plays any pictures or videos in the selected folder when the

monitor is turned on with [COMPUTE MODULE] as the selected input.

OFF WARNING Shows a warning, when shutting down the power to the Compute Module, that the device should be turned

off from within the OS of the device. This message cannot be changed.

This function is available when [POWER SUPPLY] is [OFF].

ADVANCE SETTING

SHUTDOWN SIGNAL Enables or disables the use of GPIO 23 to signal that power to the Compute Module will be shutting down.

IR SIGNAL Enables or disables the forwarding of remote control signals.

MONITOR CONTROL Enables or disables the internal serial connection between the monitor and the Compute Module.

WDT Enables or disables the monitor’s built-in Watchdog Timer function for the Compute Module.

When enabled, the monitor will expect to receive a periodic reset command from the Compute Module via
the internal UART.

If the command isn’t received for three consecutive timeout periods, the monitor will restart the Compute
Module.

START UP TIME Sets the time delay for when the monitor should start receiving WDT reset commands after the Compute

Module powers up.

PERIOD TIME Sets the maximum amount of time within which the monitor must receive WDT reset commands from the

Compute Module.

SLOT POWER Allows the monitor to supply power to an Option Board slot during power save mode or standby mode.

[AUTO]: Power is continuously supplied to the Option Board slot, even during power save and standby
modes.
Power to the Option Board slot stops during power save and standby modes, when there is no installed
device.

[ON]: Power is continuously supplied to the Option Board slot, even during power save and standby
modes.

[OFF]: Power to the Option Board slot stops during power save and standby modes.

NOTE: If the option board is a computer, please set [SLOT POWER] to [AUTO] or [ON].

RESET Resets all slot menu settings back to factory setting, except for [SLOT POWER].

*1: This function depends on which Option Board installed in the monitor. When changing the setting, tur n the monitor’s main power.
*2: This function depends on which Option Board you are using. This function is only available when Option Board is installed.
*3: Some Option Boards may not show it correctly.
*4: If the option board is a computer, please also check the computer’s shutdown settings.

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NETWORK

NETWORK MENU

NETWORK INFORMATION Configures the monitor’s network settings either automatically or manually.

IP SETTING When [AUTO] is selected, the IP address is automatically obtained from the DHCP server.

When [MANUAL] is selected, the network settings must be entered manually. Contact the Network
Administrator for this information.

NOTE: Consult your network administrator for the IP address when [AUTO] is selected for [IP SETTING].

IP ADDRESS Set the IP address for the monitor connected to the network when [MANUAL] is selected for [IP SETTING].

SUBNET MASK Set the subnet mask data for the monitor connected to the network when [MANUAL] is selected for

DEFAULT GATEWAY Set the default gateway for the monitor connected to the network when [MANUAL] is selected for

DNS Set the IP addresses of DNS servers.

DNS PRIMARY Enter the primary DNS server settings of the network connected to the monitor.

DNS SECONDARY Enter the secondary DNS server settings of the network connected to the monitor.

MAC ADDRESS Shows the monitor’s [MAC ADDRESS].

EXECUTE Executes the network information settings.

NETWORK SECURITY Individually enable or disable the networking component for monitor functions.

DISPLAY Enables or disables the network function for controlling the monitor remotely.

COMPUTE MODULE Enables or disables the network function for the Compute Module Interface Board only.

APPLY Apply the network security settings.

PING Confirm successful connection with the network by communicating with a preset IP address.

IP ADDRESS Sets an [IP ADDRESS] for sending [PING].

EXECUTE Checks a reply can be sent to the monitor or not from the [IP ADDRESS] by sending [PING].

RESET Resets all network menu settings back to factory setting, except for [NETWORK INFORMATION] and

[IP SETTING].

[IP SETTING].

NOTE: Enter [0.0.0.0] to delete the setting.

[AUTO]: The DNS server which is connected to the monitor will automatically assign its IP address.

[MANUAL]: Manually enter the IP address of the DNS server which is connected to the monitor.

NOTE: Consult your network administrator for the IP address when [AUTO] is selected for [DNS].

NOTE: Enter [0.0.0.0] to delete the setting.

NOTE: Enter [0.0.0.0] to delete the setting.

NOTE: Please set “DISPLAY” to “ENABLE” when updating the firmware revision via the network.

When disabled, these functions do not work: External Control, Mail, HTTP server, SNMP, Crestron, AMX,
PJLink.

[PING].

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PROTECT

PROTECT MENU

POWER SAVE SETTINGS

POWER SAVE Enables or disables the monitor entering power saving mode.

When [ENABLE] is selected, the monitor goes into power saving mode after the period of time has passed
with no input signal detected or signal loss has occurred.

You can set the power saving condition in [MODE].

When the monitor is in power saving mode, the LED power indicator will change color. Refer to the Power
indicator table (see page 65).

When [DISABLE] is selected, the monitor doesn’t go into power saving mode.

The monitor will enter the state selected for [MODE] in the following condition:

The monitor is powered off by pressing the main power switch or POWER ON button on the remote
control, [POWER] in [SCHEDULE INFORMATION], or by an external control.

Please refer to the monitor’s specifications (see “M431” on page 68, “M491” on page 69,

“M551” on page 70 and “M651” on page 71) for power consumption information.

NOTE: • When the monitor is connected to a computer, the computer’s display adapter may not stop

TIME SETTING Sets the amount of time the monitor should wait for input signal before going into power save mode.

MODE When [LOW POWER] is selected, the monitor cannot detect an input signal from the connected device will

USB

USB POWER Select [ON] to supply power during standby.

POWER SAVE MESSAGE Shows a message as the monitor is entering low power mode.

QUICK START When [ENABLE] is selected, the monitor will quickly return to the [ON] state when a signal is detected.

THERMAL MANAGEMENT

FAN CONTROL When [AUTO] is selected, the fans will only turn on when the internal temperature reaches the temperature

FAN SPEED The [FAN SPEED] can be adjusted [LOW] or [HIGH].

DISPLAY Shows the status of the internal temperature of the monitor.

FAN STATUS Shows the status of the monitor’s internal fan.

INTERNAL
TEMPERATURE

SLOT Shows the internal temperature of the Option Board.

FAN STATUS Shows the status of the fan for the Option Board.

INTERNAL
TEMPERATURE

SYSTEM FAN
REQUIREMENT

OPTION

COMPUTE MODULE

not turn on automatically. To turn on the monitor, please press the main power switch on the monitor or the
POWER ON button on the remote control, or disconnect and reconnect the device’s signal cable.

When [NORMAL] is selected, the monitor turns on by detecting an input signal from a connected device.
Please set to [NORMAL] when using an external control function (see page 51).

Select [ON] to supply power to the USB port.

NOTE: Power consumption by devices connected to this port depends on the USB devices.

Enabling this option increases standby power consumption.

set at any one of the sensors in this menu. The fans will automatically turn off when the monitor is cooler.
When [ON] is selected the fans are always on. The fans cannot be turned off manually.

Use the + and – button on the remote control to adjust the maximum internal temperature the monitor can
reach before the fan turns on when [AUTO] is selected.

Shows the internal temperature of the monitor.

Shows the internal temperature of the Option Board.

Show the requirement operation from the Option Board and Compute Module.

sending digital data even though there is no image on-screen. If this occurs the monitor will not
switch into standby mode.

• The [POWER SAVE] function is disabled when [AUTO OFF] is turned on in the SCHEDULE

menu, or when [HUMAN SENSING]*1 is enabled in the [AUTO DIMMING] section of the
CONTROL menu.

1

 *

: The function is available only when connecting the optional sensor unit.

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PROTECT MENU

SCREEN SAVER Use the [SCREEN SAVER] function to reduce the risk of Image Persistence.

NOTE: • When the screen saver starts, the image aspect is changed to [FULL]. When the screen saver

MOTION Slightly expands the screen image to the pre-set zoom level then moves the image in four directions (up,

down, right, left) at the pre-set interval. Use the + and – button on the remote control to set the time on the
[INTERVAL] slider, and the zoom percentage on the [ZOOM] slider.

POWER ON DELAY Delays the monitor from turning on for the amount of time set when the POWER ON button is pressed.

DELAY TIME The delay can be set between 0 and 50 seconds.

LINK TO ID Links the [DELAY TIME] to the monitor’s ID. This helps to prevent power surges that may occur if all

multiple monitors were to turn on at the same time. The higher the Monitor ID, the longer the delay is
before the monitor powers on.

For example, if the Monitor ID is 20 and the [DELAY TIME] is 5 seconds, the amount of time that passes
between when the POWER ON button is pressed and when the power actually turns on is 95 seconds.

NOTE: If the [DELAY TIME] is set to 0 seconds, there will be no extended delay for [LINK TO ID].

SECURITY SETTINGS Requires a password to be entered to use the monitor.

PASSWORD Input the current password to change the settings in this menu. The default password is 0000.

SECURE MODE Selects when a security password is required to use the monitor.

START-UP LOCK The password is required when powering on the monitor.

CONTROL LOCK The password is required when pressing a button on the display’s button panel or remote control.

CHANGE PASSWORD Allows the security password to be changed.

NOTE: The factory preset password is [0000].

CURRENT PASSWORD Input the current password to change.

NEW PASSWORD Input a new password.

CONFIRM PASSWORD Input the new password again to confirm the password change.

LOCK SETTINGS Prevents the monitor from being controlled by the wireless remote control, the buttons on the monitor, or

both.

When [ACTIVATE] is selected, all settings are activated.

NOTE: • [IR] is a function intended only for the wireless remote control buttons.

SELECT Selects the device, [IR], [KEY] or [KEY & IR].

MODE Selects the mode [UNLOCK], [ALL LOCK] or [CUSTOM LOCK].

UNLOCK All buttons are available for normal operation.

ALL LOCK Locks all buttons.

CUSTOM LOCK All buttons are locked except for the following buttons, which can be individually set to be locked or

unlocked.

stops, the aspect will return to the current [ASPECT] setting.

• The screen saver cannot be selected for a signal input of 4K.

• When the [MOTION] is active, [ASPECT] and [OVERSCAN] are not available.

• This function will be disabled when activating [TILE MATRIX] or pressing STILL button on the

remote control.

The delay time must be 1 second or higher to delay power on.

This function does not lock out access to the buttons on the monitor.

• To return to normal operation, press the DISPLAY button on the remote control and hold it

down for more than 5 seconds.

• To activate the control key lock function, press the  button and the  button and hold down

simultaneously for more than 3 seconds. To resume user mode, press the  button and the 
button and hold simultaneously for more than 3 seconds.

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PROTECT MENU

POWER Select [UNLOCK] to be able to use the POWER button when all buttons are locked. Select [LOCK] to lock

VOLUME When [IR] is selected in [SELECT]:

MIN VOL/MAX VOL The volume buttons are unlocked and the volume level can only be adjusted within the MIN and MAX

INPUT When [IR] is selected in [SELECT]:

ACTIVATE/
DEACTIVATE

ALERT MAIL When set to [ON] and the monitor is connected to a network, the monitor can send an email message

RESET Resets all security menu settings back to factory setting, except for [POWER ON DELAY] and [SECURITY

the button.

- UNLOCK: Enable to control the volume with the VOL +/– button on the remote control.

When [KEY] is selected in [SELECT]:

- UNLOCK: Enable to control the volume with the + button and the – button on the monitor.

When [KEY & IR] is selected in [SELECT]:

- UNLOCK: Enable to control the volume with the VOL +/– button on the remote control and the + button
and the – button on the monitor.

LOCK: To prevent volume adjustment. When activating the volume lock, the monitor volume will
immediately change to the MIN VOL value.

range set. VOLUME must be set to [UNLOCK] for this function.

- UNLOCK: Enable to use the input buttons on the remote control.

- LOCK: Lock all input buttons on the remote control.

When [KEY] is selected in [SELECT]:

- UNLOCK: Enable to use the INPUT/SET button on the monitor.

- LOCK: Lock the INPUT/SET button on the monitor.

When [KEY & IR] is selected in [SELECT]:

- UNLOCK: Enable to use the input buttons on the remote control and the INPUT/SET button on the
monitor.

- LOCK: Lock all input buttons on the remote control and the INPUT/SET button on the monitor.

Select [ACTIVATE] to activate all settings. To return to normal operation press-and-hold the DISPLAY
button for more than 5 seconds.

when an error occurs. The email settings must be configured in the monitor’s HTTP server settings for an
ALERT MAIL to be sent. See page 57.

SETTINGS].

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SYSTEM

SYSTEM MENU

MONITOR INFORMATION Shows the model name, serial number and firmware version of the monitor.

[CARBON SAVINGS]: Shows the estimated carbon saving information in kg-CO2. The carbon footprint
factor in the carbon saving calculation is based on the OECD (2008 Edition).

[CARBON USAGE]: Shows the estimated carbon usage information in kg-CO2. This is the arithmetic
estimation, not actual measurement value. This estimation is based without any options.

FIRMWARE Shows the monitor’s current firmware version.

MAC ADDRESS Shows the monitor’s MAC ADDRESS.

DATE & TIME NOTE: If the monitor’s main power has been turned off for two weeks, the clock function stops working.

YEAR Sets the current year. Press the + or – button on the remote control to cycle to the current year.

MONTH Sets the current month. Press the + or – button on the remote control to cycle to the current month.

DAY Sets the current day of the month. Press the + or – button on the remote control to cycle to the current day.

TIME Sets the current time. Highlight the hour field, then press the + or – button on the remote control to cycle to

the current hour, then repeat this for the minutes field.

NOTE: • The monitor’s clock is a 24-hour format.

CURRENT DATE TIME Shows the current date and time. This data does not reflect changes to the Date and Time settings until

SET is pressed on the remote control.

DAYLIGHT SAVING Automatically changes the real-time clock to match Daylight Savings hours.

NOTE: Set the [DATE & TIME] before enabling the [DAYLIGHT SAVING] setting.

DAYLIGHT SAVING Automatically adjusts the current time, when Daylight Saving hours are in effect, based on the start and

end dates selected in this menu.

BEGIN MONTH Set the month, day and time for when Daylight Saving begins.

END MONTH Set the month, day and time for when Daylight Saving ends.

TIME DIFFERENCE Set the time difference for the real-time clock adjustment. When Daylight Saving starts, this is the amount

of time the real-time clock will be adjusted.

EXTERNAL CONTROL Sets the monitor’s ID number, assigns the monitor to groups.

MONITOR ID Sets the monitor’s ID number between 1 and 100. This number is also used by the remote control when in

ID mode.

NOTE: It is strongly recommended so that the monitor can be individually identified and controlled.

GROUP ID This function assigns monitors to groups, which gives you the ability to send commands to all monitors,

however, only monitors with the matching Group ID perform the command. Group IDs allow specific groups
of monitors to be targeted using a single command, providing high-speed parallel operation. It is useful
for scenarios such as rapid switching of video inputs or tile matrix configurations within a video wall. The
[GROUP ID] function is used only via RS-232C commands from your software or control system. Monitors
can be assigned to any of the 10 available Group IDs, labeled A-J. Refer to the External_Control.pdf file
(see page 73) for the monitor’s command codes.

CONTROL TERMINAL Selects control terminal, [RS-232C] or [LAN].

LANGUAGE Select the language used by the OSD.

In this case, please set the [DATE & TIME] setting again.

• If the monitor is at a location that is currently in Daylight Savings, set the TIME field to what

the current time would be when Daylight Savings is not in effect. Then enable the [DAYLIGHT
SAVING] function to have the clock automatically adjust to the current time.

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SYSTEM MENU

OSD

OSD TIME Turns off the OSD after a period of inactivity. The preset choices are 10-240 seconds.

OSD POSITION Determines the location where the OSD appears on the screen.

OSD SIZE Change the size of the OSD on the screen.

INFORMATION OSD Selects whether or not to automatically show information about the monitor when it powers on, changes

COMMUNICATION INFO. Selects whether or not to show the [IP ADDRESS] when the [INFORMATION OSD] is [ON].

OSD ROTATION Changes the OSD orientation between landscape and portrait.

LANDSCAPE Shows the OSD in landscape orientation.

PORTRAIT Shows the OSD in portrait orientation.

KEY GUIDE Shows the monitor’s button controls Key Guide when open the OSD Menu.

CLONE SETTING Copies some of the OSD menu settings to other monitors using a USB storage device (FAT16, FAT32).

ALL INPUT When this option is selected, all input terminal settings are copied.

INPUT Copies the selected settings.

PICTURE

AUDIO

SCHEDULE

SLOT

NETWORK

PROTECT

SYSTEM

HTTP

COPY START - USB READ Imports the exported setting file and overwrites the current OSD settings.

COPY START - USB WRITE Exports the monitor settings to a connected USB storage device.

POWER INDICATOR Turns on or off the LED that indicates the monitor is powered on and in active mode. The monitor’s power

MUTE SETTING Allows you to mute the monitor’s audio and video output.

UPDATE FIRMWARE Updates the firmware by connecting the USB storage device (FAT16, FAT32) that stores the FIRMWARE

RESET Resets all system menu settings back to factory setting, except for [LANGUAGE], [OSD ROTATION],

FACTORY RESET

RESET All items are returned to factory shipment state.

input, or the current input signal changes.

The information includes the current input, audio source, aspect ratio, resolution, and refresh rate.
The monitor’s ID and IP address are also shown unless their setting is OFF.

Note that the information OSD is also displayed when pressing the DISPLAY button on the remote control.
The remote control function cannot be turned off.

The information is set in [NETWORK INFORMATION] at [NETWORK].

NOTE: OSD settings in [LANDSCAPE] mode are kept in [PORTRAIT] mode.

The Key Guide is aligned to the monitor’s button control panel and does not move if the OSD POSITION
changes. It is a visual guide to indicate the position of the buttons so that features can be easily adjusted
when not using a remote control.

NOTE: The selection of which settings to copy is reset to default when the monitor is powered off.

Highlight and press SET to select each setting that needs to be copied to the other monitors, or select
[ALL INPUT]. Highlight [YES] and press SET to start copying the settings.

LED will not glow when this setting is [OFF].

AUDIO: Mutes the audio output when the remote control’s MUTE button is pressed.

VIDEO: Mutes the video output when the remote control’s MUTE button is pressed.

AUDIO & VIDEO: Mutes the audio and video output when the remote control’s MUTE button is pressed.

NOTE: The MUTE setting is released in the following cases:

• If you change the [INPUT], turn off/on the main power switch, turn off/on with the ⏻ button on

the remote control or the main unit, return from power save, change the [MUTE SETTING],
change the [AUDIO MODE], when the volume is changed with the remote control or the main
unit key, or when the video signal (resolution/scanning frequency) is changed.

image file (PAC file) to the monitor.

[KEY GUIDE] and [DATE & TIME].

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Appendix D Manufacturer’s Recycling and

Energy Information

This Chapter Includes:

> “Disposing of your old NEC product” on page 92

> “Energy Saving” on page 92

> “WEEE Mark (European Directive 2012/19/EU and amendments)” on page 93

NEC DISPLAY SOLUTIONS is strongly committed to environmental protection and sees recycling as one of the
company’s top priorities in trying to minimize the burden placed on the environment. We are engaged in developing
environmentally friendly products, and always strive to help define and comply with the latest independent
standards from agencies such as ISO (International Organization for Standardization) and TCO (Swedish Trades
Union).

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Disposing of your old NEC product

The aim of recycling is to gain an environmental benefit by means of re-use, upgrading, reconditioning or reclamation of
material. Dedicated recycling sites ensure that environmentally harmful components are properly handled and securely
disposed. To ensure the best recycling of our products, NEC DISPLAY SOLUTIONS offers a variety of recycling procedures and
gives advice on how to handle the product in an environmentally sensitive way, once it has reached the end of its life.

All required information concerning the disposal of the product and country-specific information on recycling facilities can be
found on our following websites:

https://www.nec-display-solutions.com/p/greenvision/en/greenvision.xhtml (in Europe)

https://www.nec-display.com (in Japan)

https://www.necdisplay.com (in USA).

Energy Saving

This monitor features an advanced energy saving capability. When a Display Power Management signal is sent to the monitor,
the Energy Saving mode is activated. The monitor enters a single Energy Saving mode.

For additional information visit:

https://www.necdisplay.com/ (in USA)

https://www.nec-display-solutions.com/ (in Europe)

https://www.nec-display.com/global/index.html (Global)

For ErP requirement/For ErP (Network standby) requirement:

Except for conditions below:
[POWER SAVE] is set to [DISABLE].
[SLOT POWER] is set to [ON].
[CEC] is set to [MODE1] or [MODE2].
The monitor is using an Option Board.
[MODE] in [POWER SAVE SETTING] is set to [LOW POWER].
[AUTO INPUT CHANGE] is set to a setting except for NONE.
[USB POWER] is set to [ON].
[QUICK START] is set to [ENABLE].

Power consumption (Glowing amber): 2.0 W or less.
Time for power management function: 10 sec. (Default setting).

Power consumption (Blinking amber): 0.5 W or less.
Time for power management function: 3 min. (Default setting).

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WEEE Mark (European Directive 2012/19/EU and amendments)

Disposing of your used product: In the European Union

EU-wide legislation as implemented in each Member State requires that used electrical and electronic products
carrying the mark (left) must be disposed of separately from normal household waste. This includes monitors
and electrical accessories, such as signal cables or power cords. When you dispose of such products, please
follow the guidance of your local authority or ask the shop where you purchased the product, or if applicable,
follow applicable legislation or agreement you may have. The mark on electrical and electronic products may
only apply to the current European Union Member States.

Outside the European Union

If you wish to dispose of used electrical and electronic products outside the European Union, please contact your local authority
and ask for the correct method of disposal.

For EU: The crossed-out wheeled bin implies that used batteries should not be put to the general household
waste! There is a separate collection system for used batteries, to allow proper treatment and recycling in
accordance with legislation.

According to EU directive 2006/66/EC and amendments, the battery can’t be disposed improperly. The battery shall be
separated to collect by local service.

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Rev. 2