User’s Manual
Desktop Monitor
AccuSync AS221F
AccuSync AS241F
MODEL: AS221F, AS241F
Please find your model name in the label on the rear side of the monitor.
Table of Contents
Important Information ........................................................... 1
Registration Information .......................................................2
Product Features
Chapter 1 Installation
Parts Name and Functions ................................................. 10
Control Panel ......................................................................10
Terminal Panel ....................................................................11
Connections ........................................................................12
Connecting Video ...............................................................12
Chapter 2 Basic Operation
Recommended Use .............................................................. 3
Setup ..................................................................................13
Adjustable Stand Capability ................................................15
Flexible Arm Installation .....................................................15
Remove the Monitor Stand for Mounting ............................15
Mount the Flexible Arm .......................................................16
Using the OSD (On-Screen Display) Controls ....................18
Changing the Input .............................................................19
Power management function LED indicator patterns .........19
Chapter 3 Troubleshooting
Screen Image and Video Signal Issues ..............................21
Hardware Issues .................................................................22
Image Persistence ..............................................................22
Chapter 4 Specifications
AS221F ...............................................................................24 AS241F ...............................................................................25
Appendix A OSD Controls List
Picture ................................................................................27
Sound .................................................................................27
Setup ..................................................................................28
Information .......................................................................... 28
Appendix B Manufacturer’s Recycling and Energy Information
Disposing of your old NEC product ....................................30
Energy Saving ....................................................................30
WEEE Mark (European Directive 2012/19/EU and
amendments) ......................................................................30
Important Information
WARNING: To prevent fire or shock hazards, do not expose this unit to rain or moisture.
Do not connect or disconnect this product during an electrical storm.
Refrain from opening the cabinet as there are high voltage components inside. Refer servicing to qualified service personnel.
CAUTION: Please use the power cord provided with this display in accordance with the power cord table. If a power cord is not supplied
with this equipment, please contact NEC. For all other cases, please use the power cord with the plug style that matches the
power socket where the monitor 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.
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.
This symbol warns user that uninsulated voltage within the unit may have sufficient magnitude to cause electric shock. Therefore, it is
dangerous to make any kind of contact with any part inside this unit.
This symbol alerts the user that important literature concerning the operation and maintenance of this unit has been included.
Therefore, it should be read carefully in order to avoid any problems.
English
Plug Type North America
Plug Shape
Region U.S.A./Canada EU U.K. China Japan
Voltage 120* 230 230 220 100
* When operating the monitor with its AC 125-240V power supply, use a power supply cord that matches the power supply voltage of the
AC power outlet being used.
NOTE: This product can only be serviced in the country where it was purchased.
• 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.
Copyright Information
Windows is a registered trademark of Microsoft Corporation.
NEC is a registered trademark of NEC Corporation.
DisplayPort and DisplayPort Compliance Logo are trademarks owned by Video Electronics Standards Association in the
United States and other countries.
ErgoDesign is a registered trademark of NEC Display Solutions, Ltd. in Austria, Benelux, Denmark, France, Germany, Italy,
Norway, Spain, Sweden, U.K.
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.
Adobe and the Adobe logo are either registered trademarks or trademarks of Adobe Systems Incorporated in the
United States and/or other countries.
All other brands and product names are trademarks or registered trademarks of their respective owners.
NOTE: (1) The contents of this user’s manual may not be reprinted in part or whole without permission.
(2) The contents of this user’s manual are subject to change without notice.
(3) Great care has been taken in the preparation of this user’s manual; however, should you notice any questionable points, errors or
omissions, please contact us.
(4) The image shown in this user’s 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.
European
Continental
U.K. Chinese Japanese
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Registration Information
Cable Information
CAUTION: Use the provided specified cables with this product so as not to interfere 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
1. The power supply cord you use must have been approved by and comply with the safety standards of U.S.A., and meet the following
condition.
For DisplayPort and HDMI, please use a shielded signal cable.
Use of other cables and adapters may cause interference with radio and television reception.
NEC Display Solutions of America, Inc. in this manual. Failure to comply with this government regulation could void your right to
operate this equipment.
Power supply cord
Plug shape
2. 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 into 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.
Non shield type, 3-conductor
U.S.A.
SUPPLIER’S DECLARATION OF CONFORMITY
This device complies with Part 15 of 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.: (630) 467-3000
Type of Product: Display Monitor
Equipment Classification: Class B Peripheral
Model: AS221F, AS241F
CAUTION: Please confirm the distribution system in building installation shall provide the circuit breaker rated 120/240 V, 20 A (maximum).
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Recommended Use
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.
English
WARNING
CAUTION
Examples of symbols
UNPLUG THE
POWER CORD
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 monitor malfunctions.
Should the monitor emit smoke or strange odors or sounds, or if the monitor has been dropped or the
cabinet broken, turn off the monitor’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 monitor on your own. Doing so is dangerous.
To prevent personal injury or damage to the monitor caused by tipping over due to earthquakes or other
shocks, make sure to install the monitor in a stable location and take measures to prevent falling.
Immediately turn off the power and unplug your monitor from the wall outlet, then refer servicing to
qualified service personnel under the following conditions. If the monitor is used in this condition, the
monitor may fall or cause a fire or electric shock.
• If the monitor stand has cracked or peeled.
• If you notice any structural damage such as cracks or unnatural wobbling.
Do not open or remove the monitor’s cabinet.
There are high voltage areas in the monitor. Opening or removing covers and modifying the monitor
expose you to electric shock, fire, or other risks. Refer all servicing to qualified service personnel.
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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 monitor.
• 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 place this product on a sloping or unstable cart, stand or table. It may cause personal injury.
Do not use the monitor if the monitor was dropped or the cabinet is damaged. It may cause an electric
shock or fire.
Do not insert objects of any kind into the cabinet slots, as they may touch dangerous voltage points,
which can be harmful or fatal, or may cause electric shock, fire or equipment failure.
Do not spill any liquids into the cabinet or use your monitor near water.
Immediately turn off the power and unplug your monitor from the wall outlet, then refer servicing to
qualified service personnel under the following condition. If the monitor is used in this condition, the
monitor may fall or cause an electric shock or start a fire:
• If liquid has spilled or objects have fallen into the monitor.
When cleaning the monitor:
• Do not use flammable gas sprays to remove dust. Doing so lead to fire.
Do not play with the plastic bag which covers the monitor. Do not use this bag for any other purpose. To
avoid the danger of suffocation, do not place this bag over your head, nose or mouth. Do not place this
bag over another person’s head, nose or mouth. Keep this bag away from children and babies.
CAUTION
Please install the monitor in accordance with the following information.
When transporting and securely install the monitor, please use as many people as necessary to be able
to lift the monitor without causing personal injury or damage to the monitor.
Improper installation of the monitor may result in damage to the monitor, an electric shock or fire.
Do not install the monitor in the locations below:
• 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.
Do not mount the product in any configuration or position not described in the user’s manual.
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CAUTION
Do not climb on the monitor or the table where the monitor is installed. Do not install the monitor on a
wheeled table if the wheels on the table have not been properly locked. The monitor may fall causing
damage to the monitor or personal injury.
Do not touch LCD panel surface while transporting, mounting and setting. Applying pressure on the LCD
panel can cause serious damage.
If the monitor or glass breaks, do not come into contact with the liquid crystal that is inside the screen. If
the liquid crystal comes into contact with your eyes or mouth, rinse thoroughly and immediately contact
your doctor for help.
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 monitor’s AC IN terminal, make sure the connector is fully and
firmly inserted.
• 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 plug.
• When cleaning the monitor, 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 monitor, make sure the monitor power is off, then unplug the power cord from the
power outlet and check that all cables connecting the monitor to other devices are disconnected.
• When you are not planning to use the monitor for an extended period of time, always unplug the
power cord from the power outlet.
To ensure the monitor’s reliability, please clean the ventilation holes at the rear side of the cabinet at least
once a year to remove dirt and dust.
Handle with care during installation and adjustment to prevent personal injury and damage to the monitor.
English
The monitor must be mounted to a flexible arm or stand that supports the weight of the monitor to prevent
damage and personal injury that could result from the monitor tipping over or falling.
• Please tighten all screws when installing the monitor to a flexible arm or stand. A loose screw may
cause the monitor to fall, causing damage to the monitor or personal injury.
Do not connect headphones to the monitor while you are wearing them. Depending on the volume level, it
may damage your ears and cause loss of hearing.
CAUTION
Please install the monitor in accordance with the following information.
Improper installation of the monitor may result in damage to the monitor, an electric shock or fire.
• Allow adequate ventilation around the monitor, so that heat can properly dissipate.
• Do not cover the vent on the monitor.
Clean the monitor’s LCD screen surface with a lint-free, non-abrasive cloth.
Avoid using any cleaning solutions! 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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Image Persistence
Image persistence occurs when a residual or “ghost” image of a previous image remains visible on the screen. Unlike CRT
monitors, LCD monitors’ image persistence is not permanent, but a still image being displayed for a long period of time should
be avoided.
To alleviate image persistence, turn off the monitor for as long as the previous image was displayed. For example, if an image
was on the monitor for one hour and a residual image remains, the monitor should be turned off for one hour to erase the image.
NOTE: As with all personal display devices, NEC DISPLAY SOLUTIONS recommends using a moving screen saver at regular
intervals whenever the screen is idle, or turn off the monitor when not in use.
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Ergonomics
CORRECT PLACEMENT AND ADJUSTMENT OF THE MONITOR CAN
REDUCE EYE, SHOULDER, AND NECK FATIGUE. CHECK THE
FOLLOWING WHEN YOU POSITION THE MONITOR:
To realize the maximum ergonomics 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).
• Adjust the monitor height so that the top of the screen is at or slightly below eye level.
Your eyes should look slightly downward when viewing the middle of the screen.
• Position your monitor no closer than 40 cm (15.75 inches) and no further away than
70 cm (27.56 inches) from your eyes. The optimal distance is 50 cm (19.69 inches).
• Rest your eyes periodically for 5 to 10 minutes for every 1 hour by focusing on an object
at least 20 feet away.
• Position the monitor at a 90° angle to windows and other light sources to minimize glare
and reflections. Adjust the monitor tilt so that ceiling lights do not reflect on your screen.
• If reflected light makes it hard for you to see your screen, use an anti-glare filter.
• Adjust the monitor’s brightness and contrast controls to enhance readability.
• Use a document holder placed close to the screen.
• Position whatever you are looking at most of the time (the screen or reference material) directly in front of you to minimize
turning your head while you are typing.
• Blink often. Eye exercise helps to reduce eye strain. Please contact your ophthalmologist. Get regular eye checkups.
• To avoid eye fatigue, adjust the brightness to a moderate setting. Place a sheet of white paper next to the LCD screen for
luminance reference.
• Do not position the Contrast control to its maximum setting.
• Use the preset Size and Position controls with standard signals.
• Use the preset Color Setting.
• Use non-interlaced signals.
• Do not use primary color blue on a dark background, as it is difficult to see and may produce eye fatigue due to insufficient
contrast.
• Suitable for entertainment purposes at controlled luminous environments, to avoid disturbing reflections from the screen.
For more detailed information on setting up a healthy work environment, write to the American National Standard for Human
Factors Engineering of Computer Workstations - ANSI/HFES 100-2007 - The Human Factors Society, Inc. P.O. Box 1369,
Santa Monica, California 90406.
English
Cleaning the LCD Screen
• When the LCD Screen is dusty, please gently wipe with a soft cloth.
• Please do not rub the LCD Screen with hard or coarse 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.
Dampen the cloth with a neutral detergent and water, wipe the cabinet and follow with a dry cloth.
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Product Features
• Reduced Footprint
Provides the good solution for environments with space constraints without sacrificing the size of the screen and its superior
image quality.
• Color Control Systems
Allow you to adjust the colors on your screen and customize the color accuracy of your monitor to a variety of standards.
• OSD (On-Screen Display) Controls
Allow you to quickly and easily adjust all elements of your screen image via simple to use on-screen menus.
• No Touch Auto Adjust (Analog input only)
Automatically adjusts the monitor to optimal settings upon initial setup.
• ErgoDesign Features
Enhanced human ergonomics to improve the working environment, protect the health of the user, and save money.
The ergonomic features include a fully articulating monitor stand, OSD controls for quick and easy image adjustment, and
lower emissions.
• Plug and Play
The Microsoft® solution with the Windows® operating system facilitates setup and installation by allowing the monitor to send
its capabilities (such as screen size and resolutions supported) directly to your computer, automatically optimizing display
performance.
• Intelligent Power Manager System
Provides innovative power-saving methods that allow the monitor to shift to a lower power consumption level when on but
not in use, saving two-thirds of your monitor energy costs, reducing emissions, and lowering the air conditioning costs of the
workplace.
• Multiple Frequency Technology
Automatically adjusts monitor to the display card’s scanning frequency, thus displaying the resolution required.
• FullScan Capability
Allows you to use the entire screen area in most resolutions, significantly expanding image size.
• VESA Standard Mounting Interface
Allows you to connect your AccuSync monitor to any VESA standard third party mounting arm or bracket.
• Environmental Impact (AS221F/AS241F)
Annual typical maximum operating carbon footprint of this monitor (world-wide average) is approximately 23.6 kg (AS221F)/
25.5 kg (AS241F) (calculated by: rated wattage x 8 hours per day x 5 days a week x 45 weeks per year x Power-to-Carbon
conversion factor - conversion factor is based on OECD publication of global CO2 emissions 2008 Edition).
This monitor has a manufacturing carbon footprint of approximately 28.6 kg (AS221F)/30.8 kg (AS241F).
Note: The manufacturing and operating carbon footprints are calculated by a unique algorithm developed exclusively by NEC
for its monitors and are accurate at the time of printing. NEC reserves the right to publish updated carbon footprint values.
• Low Blue Light
Low Blue Light function substantially reduces blue light and helps to alleviate eye strain (see page 27).
• Flicker Free
Special backlight system reduces flicker for less eye strain.
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Chapter 1 Installation
This Chapter Includes:
> “Parts Name and Functions” on page 10
> “Connections” on page 12
> “Setup” on page 13
> “Flexible Arm Installation” on page 15
English
English−9
Parts Name and Functions
Control Panel
Item Function
A LED
B Powe r
C EXIT button
D UP button
E DOWN button
F ENTER button
Indicates that the power is on.
Turns the monitor on and off.
When the OSD menu is not displayed on the screen, it opens the VIDEO INPUT menu (When selecting AUTO input, the
monitor selects the active signal input automatically). When the OSD menu is displayed on the screen, it closes the OSD
sub-menus and main menu.
When the OSD menu is not displayed on the screen, it opens the [BRIGHTNESS] menu. When the OSD menu is
displayed on the screen, it navigates to the right or raises settings adjustments.
When the OSD menu is not displayed on the screen, it opens the [VOLUME] menu. When the OSD menu is displayed on
the screen, it navigates to the left or lowers settings adjustments.
When the OSD menu is not displayed on the screen, it opens the OSD menu. When the OSD menu is displayed on the
screen, it selects a function icon.
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Terminal Panel
AC IN Connector
A
G
Security Slot
H
Rating Label
English
B
DisplayPort IN
A AC IN Connector
Connects with the supplied power cord.
B DisplayPort IN
Digital DisplayPort signals input.
C HDMI IN
Digital HDMI signals input.
D VGA IN (mini D-Sub 15-pin)
Analog RGB signals input.
C
HDMI IN
D
VGA IN
E
Audio IN
F
Headphone
E Audio IN
Audio signal input from external equipment such as a computer
or player.
F Headphone Jack
Connects with headphones.
G Security Slot
Security and theft protection lock slot compatible with
Kensington security cables/equipment.
For products visit Kensington’s website.
H Rating Label
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Connections
Video Input Connections
• VGA (mini D-Sub 15-pin) – Analog video signal connection to a computer. Video only, no audio signal.
• HDMI – High definition digital video and audio signal connection to a computer, streaming media player, Blu-ray player, game
console, etc.
• DisplayPort – High definition digital video and audio signal connection to a computer.
Connecting Video
The type of video connections that can be used to connect to a computer depends on the computer’s display adapter.
The following table shows the typical factory preset signal timing for each connection type. Some display cards may not be able
to support the required resolution for proper image reproduction with the selected connection. The monitor will show the proper
image by automatically adjusting the factory preset timing signal.
<Major supported timings>
Resolution
H V
640 x 480 60/72/75 Hz p
720 x 400 70 Hz p
720 x 480 60 Hz p
800 x 600 56/60/72/75 Hz p SVGA
1024 x 768 60/70/75 Hz p XGA
1280 x 720 50/60 Hz p 720p
1280 x 960 60/75 Hz p
1280 x 1024 60/75 Hz p SXGA
1440 x 900 60 Hz p
1680 x 1050 60 Hz p
1920 x 1080 50/60 Hz p 1080p,Recommended (60 Hz)
p: Progressive.
NOTE: When the selected monitor resolution is not a native panel resolution, the text contents appearance in the monitor
screen is expanded in a horizontal or vertical direction to show the non-native resolution to full screen. This expansion is
done by interpolated resolution technologies, which are normal and widely used in flat panel devices.
The maximum or recommended resolution may be set to 3840x2160 depending on the connected computer’s video card.
Vertical Frequency Scan Type Notes
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 display an image correctly.
• If the monitor’s power is turned on after a connected computer is turned on, sometimes an image is not displayed. In this
case, please turn off the computer then turn it on again.
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Connecting to 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 power is turned on after a connected computer is turned on, sometimes an image is not displayed. In this
case, please turn off the computer then turn it on again.
Setup
For box contents, please refer to the setup manual provided in the box.
The accessories included depends on the location where the monitor was shipped.
To attach the base to the LCD monitor stand:
1. Place the monitor face down on a non-abrasive surface.
2. Insert the Stand Neck into the monitor and press firmly until you hear a click, which signifies the Neck Stand is securely
attached.
English
3. Attach the Base Stand to the Stand Neck. Tighten the screw at the base’s bottom.
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Screw
To connect the monitor to your system, follow these instructions:
NOTE: Make sure to read “Recommended Use” on page 3 before installation.
1. Turn off the power to your computer.
2. Place the monitor face down on a non-abrasive surface.
3. Connect devices to the monitor.
HDMI
DisplayPort
Power cord
Audio IN
D-SUB Headphone
CAUTION: Use the provided specified cables with this product so as not to interfere with radio and television
reception.
For DisplayPort and HDMI, please use a shielded signal cable.
Use of other cables and adapters may cause interference with radio and television reception.
CAUTION: • Do not connect headphones to the monitor while you are wearing them. Depending on the volume
level, it may damage your ears and cause loss of hearing.
NOTE: • Adjustment of the volume control as well as the equalizer to other settings than the center position may
increase the ear-/headphones output voltage and therefore the sound pressure level.
• Use an audio cable without a built-in resistor. Using an audio cable with a built-in resistor lowers the sound.
• Incorrect cable connections may result in irregular operation, damage display quality/components of the LCD
module and/or shorten the module’s life.
4. Connect the power cord to a power outlet.
NOTE: • Please refer to the Caution section of this manual for proper selection of the AC power cord (see page 1).
• Please make sure that enough power is supplied to the monitor. Please refer to “Power Supply” in the
“Chapter 4 Specifications” on page 23.
5. Turn on the monitor by pressing the button and then turn on the computer.
NOTE: If you have any problems please refer to the Troubleshooting section of this User’s Manual (see page 20).
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Adjustable Stand Capability
Hold the monitor on each side and adjust tilt as desired.
CAUTION:
Tilt
Flexible Arm Installation
This monitor is designed for use with a flexible arm. Contact NEC for more information.
Follow the instructions provided by the manufacturer of the display mount. Remove the monitor stand before mounting.
English
CAUTION: To meet the safety requirements, the monitor must be mounted to an arm that supports the weight of the
monitor. See the Specifications - “AS221F” on page 24 and “AS241F” on page 25 for details.
Remove the Monitor Stand for Mounting
NOTE: Handle with care when removing the monitor stand.
1 2 3
Screw
Release
button
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Mount the Flexible Arm
Using four screws that meet the specifications listed below, attach the arm to the monitor.
Mounting
Bracket
Washer
Screw (M4)
Thickness of
bracket and
washer
100 mm
100 mm
Unit 8 - 10 mm
Figure F.1
CAUTION: • The monitor should only be used with an approved arm (e.g. TUEV GS mark).
• Tighten all screws (recommended fasten torque: 98 - 137 N•cm).
• Attaching the flexible arm should be done by two or more people if the monitor cannot be placed face down
on a flat surface for installation.
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Chapter 2 Basic Operation
This Chapter Includes:
> “Using the OSD (On-Screen Display) Controls” on page 18
> “Changing the Input” on page 19
> “Power management function LED indicator patterns” on page 19
English
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Using the OSD (On-Screen Display) Controls
PICTURE
SOUND
SETUP
INFOMATION
CONTRAST
ECO MODE
BRIGHTNESS
COLOR
RED
GREEN
USER
1
50
50
ENTER UPDOWN EXIT
80
50
50
BLUE
1/2
SHARPNESS 50
Info
OSD (On-Screen Display) control button on the front of the monitor function as
follows:
• To access the OSD menu, press the ENTER button.
Main Menu Adjustment Settings
Sub-menu
Press the DOWN or UP buttons to
make adjustments or selections.
1 UP button 2 DOWN button 3 ENTER button 4 EXIT button
Below is a brief summary of where controls are under each menu item. Tables listing all options available in the OSD menu are
located in “Appendix A OSD Controls List” on page 26.
PICTURE: Select one of the default picture modes, or manually adjust the color settings.
RG
B
Picture
SOUND: Select audio source and adjust volume.
Audio
SETUP: Set the OSD language, time, position, and response.
System
INFORMATION: Shows the monitor’s information and system information.
i
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Changing the Input
Changing the Input
To change the signal input, press the EXIT button.
NOTE: When selecting AUTO input, the monitor selects the active signal input automatically.
For HDCP 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 displayed due to the decision/intention of
the HDCP community (Digital Content Protection, LLC). HDCP video content is generally commercially produced Blu-rays and
DVDs, television broadcast, and streaming media services.
Power management function LED indicator patterns
The power management function is an energy saving feature that automatically reduces the power consumption of the monitor
when the keyboard or the mouse has not been used for a fixed period.
Mode LED indicator Power consumption Condition
Maximum operation Blue Approx. 21 W (AS221F)
Approx. 23 W (AS241F)
Normal operation Blue Approx. 13 W Default setting.
Energy saving mode Amber 0.27 W The monitor has passed a certain amount of time with no video signal
Off mode Off 0.24 W
NOTE: • Power consumption depends on the setting of OSD or which devices are connected to the monitor.
• This function works with computers that support VESA approved DPM (Display Power Management).
All functions work.
input.
Turn off the monitor by the button.
English
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Chapter 3 Troubleshooting
This Chapter Includes:
> “Screen Image and Video Signal Issues” on page 21
> “Hardware Issues” on page 22
> “Image Persistence” on page 22
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Screen Image and Video Signal Issues
No picture
• Make sure the signal cable is fully connected to the monitor and the computer.
• Make sure there is no DisplayPort converter adapter connected. The monitor does not support DisplayPort converter adapter.
• Make sure the computer’s display card is completely seated in its slot.
• 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.
The image is unstable, unfocused or swimming is apparent
• Make sure the signal cable is fully connected to the monitor and the computer.
• Use the OSD Image Adjust controls to focus and adjust the display by increasing or decreasing the [PHASE] adjustment.
When the display mode is changed, the OSD Image Adjust settings may need to be readjusted.
• Check the monitor and your display card with respect to compatibility and recommended signal timings.
The image is not properly reproduced
• Use the OSD Image Adjust controls ([H POSITION], [V POSITION], [CLOCK], and [PHASE]). (Analog input only).
• Use the [AUTO ADJUST] functions. (Analog input only).
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Picture is not bright
• Make sure [ECO MODE] is [OFF].
• Make sure the signal cable is fully connected to the monitor and the computer.
• LCD brightness degradation occurs due to long-term usage or extreme cold conditions.
Selected resolution is not displayed properly
• If the resolution you set is over or under a range, “OUT OF RANGE” window will appear then warn you. Please set supported
resolution at the connected computer.
No Video
• If no video is present on the screen, turn the button off and on again.
• Make sure the computer is not in a power-saving mode by touching the connected keyboard or the connected mouse.
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Hardware Issues
button does not respond
• Unplug the power cord of the monitor from the AC outlet to turn off and reset the monitor.
Message “OUT OF RANGE” is displayed (screen is either blank or shows rough images only)
• Image is displayed roughly (pixels are missing) and an OSD warning “OUT OF RANGE” is displayed: Either signal clock or
resolution is too high. Choose one of the supported modes.
• An OSD warning “OUT OF RANGE” is displayed on a blank screen: Signal frequency is out of range. Choose one of the
supported modes.
LED on monitor is not lit
• Make sure the power cord is properly connected to the monitor and the wall, and make sure the monitor’s power switch is on.
• Set [POWER INDICATOR] is [ON].
No Sound
• Check to see if the speaker cable is properly connected.
• Check to see if [MUTE] is activated.
• Check to see if [VOLUME] is set to a minimum.
• Check to see if the computer supports an audio signal through DisplayPort or HDMI.
• Check selected [SOUND INPUT] when DisplayPort or HDMI is in use.
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
on LCD monitors is not permanent, but single still image being displayed for a long period of time should be avoided.
To alleviate image persistence, turn off the monitor for as long as the previous image was displayed. For example, if an image
was on the monitor for one hour and a residual image remains, the monitor should be turned off for one hour to erase the image.
NOTE: As with all personal display devices, NEC DISPLAY SOLUTIONS recommends using a moving screen saver at regular
intervals whenever the screen is idle, or turning off the monitor when not in use.
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Chapter 4 Specifications
This Chapter Includes:
> “AS221F” on page 24
> “AS241F” on page 25
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AS221F
Monitor Specifications AccuSync AS221F Notes
LCD Module Diagonal:
Viewable Image Size:
Native Resolution:
Input Signal
54.61 cm/21.5 inches
54.61 cm/21.5 inches
1920 x 1080 60 Hz
Active matrix; thin film transistor (TFT) liquid crystal
display (LCD); 0.248 mm dot pitch; 250 cd/m2 white
luminance; 1000:1 contrast ratio (typical).
VGA: Mini D-Sub 15-pin: Analog RGB
DisplayPort: DisplayPort Connector: Digital RGB Up to 1920 x 1080 60 Hz, DisplayPort V1.1a
HDMI: HDMI Connector: Digital RGB, Digital YUV Up to 1920 x 1080 60 Hz, HDMI (HDCP 1.4)
Display Colors 16777216 Depends on display card used.
Synchronization Range Horizontal:
Vertical:
Viewing Angle Left/Right:
Up/Down:
Response Time 6 ms (Gray to Gray Typ.)
Active Display Area Horiz.:
Vert.:
AUDIO
AUDIO Input: STEREO Mini Jack:
DisplayPort Connector:
HDMI Connector:
Headphone Output: STEREO Mini Jack: Headphone Impedance 32 Ohm
Speakers Practical Audio Output: 1.0 W+ 1.0 W
Power Supply AC 100-240 V, 50/60 Hz
Current Rating 0.55 - 0.35 A
Sync
31.5 kHz to 83.0 kHz
50 Hz to 75 Hz
±89° (CR > 10)
±89° (CR > 10)
476.1 mm/18.7 inches
267.8 mm/10.5 inches
Analog Audio
Digital Audio
Digital Audio
0.7 Vp-p/75 ohm
Separate sync.TTL level Positive/Negative
(HDCP 1.3)
Automatically
Automatically
Stereo L/R 500mV rms 20 Kohm
PCM 2ch 32, 44.1, 48 kHz (16/20/24bit)
PCM 2ch 32, 44.1, 48 kHz (16/20/24bit)
Dimensions 487.5 mm (W) x 379.4 (H) x 182.0 mm (D)
Stand adjustable range Tilt: UP 20° Down 5°
Weight 3.1 kg (6.8 lbs) (with monitor stand)/2.7 kg (6.0 lbs) (without monitor stand)
Environmental Considerations
Operating Temperature:
Humidity:
Altitude:
Storage Temperature:
Humidity:
Altitude:
NOTE: Technical specifications are subject to change without notice.
19.2 inches (W) x 14.9 inches (H) x 7.2 inches (D)
5°C to 35°C/41°F to 95°F
20% to 80%
0 to 16,404 Feet/0 to 5,000 m
-10°C to 60°C/14°F to 140°F
10% to 85%
0 to 40,000 Feet/0 to 12,192 m
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AS241F
Monitor Specifications AccuSync AS241F Notes
LCD Module Diagonal:
Viewable Image Size:
Native Resolution:
Input Signal
60.47 cm/23.8 inches
60.47 cm/23.8 inches
1920 x 1080 60 Hz
Active matrix; thin film transistor (TFT) liquid crystal
display (LCD); 0.275 mm dot pitch; 250 cd/m2 white
luminance; 1000:1 contrast ratio (typical).
VGA: Mini D-Sub 15-pin: Analog RGB
DisplayPort: DisplayPort Connector: Digital RGB Up to 1920 x 1080 60 Hz, DisplayPort V1.1a
HDMI: HDMI Connector: Digital RGB, Digital YUV Up to 1920 x 1080 60 Hz, HDMI (HDCP 1.4)
Display Colors 16777216 Depends on display card used.
Synchronization Range Horizontal:
Vertical:
Viewing Angle Left/Right:
Up/Down:
Response Time 6 ms (Gray to Gray Typ.)
Active Display Area Horiz.:
Vert.:
AUDIO
AUDIO Input: STEREO Mini Jack:
DisplayPort Connector:
HDMI Connector:
Headphone Output: STEREO Mini Jack: Headphone Impedance 32 Ohm
Speakers Practical Audio Output: 1.0 W+ 1.0 W
Power Supply AC 100-240 V, 50/60 Hz
Current Rating 0.60 - 0.35 A
Sync
31.5 kHz to 83.0 kHz
50 Hz to 75 Hz
±89° (CR > 10)
±89° (CR > 10)
527.0 mm/20.7 inches
296.5 mm/11.7 inches
Analog Audio
Digital Audio
Digital Audio
0.7 Vp-p/75 ohm
Separate sync.TTL level Positive/Negative
(HDCP 1.3)
Automatically
Automatically
Stereo L/R 500mV rms 20 Kohm
PCM 2ch 32, 44.1, 48 kHz (16/20/24bit)
PCM 2ch 32, 44.1, 48 kHz (16/20/24bit)
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Dimensions 538.1 mm (W) x 408.0 (H) x 182.0 mm (D)
Stand adjustable range Tilt: UP 20° Down 5°
Weight 3.5 kg (7.7 lbs) (with monitor stand)/3.1 kg (6.8 lbs) (without monitor stand)
Environmental Considerations
Operating Temperature:
Humidity:
Altitude:
Storage Temperature:
Humidity:
Altitude:
NOTE: Technical specifications are subject to change without notice.
21.2 inches (W) x 16.1 inches (H) x 7.2 inches (D)
5°C to 35°C/41°F to 95°F
20% to 80%
0 to 16,404 Feet/0 to 5,000 m
-10°C to 60°C/14°F to 140°F
10% to 85%
0 to 40,000 Feet/0 to 12,192 m
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Appendix A OSD Controls List
This Chapter Includes
> “Picture” on page 27
> “Sound” on page 27
> “Setup” on page 28
> “Information” on page 28
Default values can be provided on request.
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Picture
Picture Menu
BRIGHTNESS Adjusts the overall image and background screen brightness.
ECO MODE
OFF Sets brightness variable from 0% to 100%.
1 (10% POWER SAVINGS) Sets the brightness variable range from 0% to 80%.
2 (30% POWER SAVINGS) Sets the brightness variable range from 0% to 40%.
CONTRAST
COLOR Select the desired color setting from six color presets (9300 / 7500 / sRGB / USER / NATIVE / L/B*).
RED Increases or decreases [RED]. The change will appear on screen.
GREEN Increases or decreases [GREEN]. The change will appear on screen.
BLUE Increases or decreases [BLUE]. The change will appear on screen.
SHARPNESS Adjusts the crispness of the image.
H POSITION (Analog input only) Controls the horizontal position of the image within the display area of the LCD.
V POSITION (Analog input only) Controls the vertical position of the image within the display area of the LCD.
CLOCK (Analog input only)
PHASE (Analog input only) Adjusts the visual “noise” in the image.
AUTO CONTRAST
(Analog input only)
AUTO ADJUST
(Analog input only)
PICTURE RESET Resets all PICTURE settings back to default settings.
*: L/B is an abbreviation of Low Blue Light.
Decreases the amount of power consumption by reducing the brightness level.
Adjusts the image brightness in relation to the background.
NOTE: This function is disabled when [COLOR] is set to [L/B].
NOTE: When [L/B] is selected in [COLOR] control, [CONTRAST] is disabled.
Press UP button to expand the width of the image on the right of the screen.
Press DOWN button to narrow the width of the image on the left of the screen.
Adjusts the image displayed for non-standard video inputs.
[H POSITION], [V POSITION], [CLOCK] and [PHASE] are adjusted automatically when new timing is
detected.
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Sound
Sound Menu
SOUND INPUT Selects the sound input source.
MUTE Mutes the speaker output.
VOLUME Controls the volume of the speakers or headphones.
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Setup
Setup Menu
EXPANSION Sets the Zoom method.
FULL The image is expanded to full screen regardless of the resolution.
ASPECT The image is expanded without changing the aspect ratio.
RESPONSE IMPROVE Turns the [RESPONSE IMPROVE] function [ON] or [OFF]. This function may reduce blurring that occurs in
LANGUAGE Selects the language used by the OSD. After selecting language, press the ENTER button.
POWER INDICATOR Turns off the LED light on the monitor bezel when [POWER INDICATOR] is set to [OFF].
QUICK START The compliance marks that are shown when powering on the monitor the first time are not shown when
OSD TURN OFF The OSD menu will stay open as long as it is in use. You can select how long the monitor waits after the
OSD LOCK OUT This control completely locks out access to all of the OSD control functions except for [BRIGHTNESS],
FACTORY RESET Selecting [FACTORY PRESET] allows you to reset all OSD control settings back to the default settings
some moving images.
switching inputs. The compliance marks are not shown again unless the AC power cord has been
disconnected and reconnected.
If you select [ON], it prevents the compliance marks from being shown when powering on the monitor.
last touch to turn off the OSD menu. The preset choices are 5 - 100 seconds by 5-second increments.
[CONTRAST], [VOLUME], and input change.
To activate the [OSD LOCK OUT] function, open the OSD menu, select [OSD LOCK OUT], then hold
down the ENTER button over 5 seconds and press the EXIT button simultaneously. To deactivate, hold
down the EXIT button over 5 seconds and press the ENTER button simultaneously.
except [LANGUAGE].
Information
Information Menu
INFORMATION Information about the current display resolution and technical data, including the preset timing being used
and the vertical frequencies, and indicates the model and serial numbers of your monitor.
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Appendix B Manufacturer’s Recycling and
Energy Information
This Chapter Includes:
> “Disposing of your old NEC product” on page 30
> “Energy Saving” on page 30
> “WEEE Mark (European Directive 2012/19/EU and amendments)” on page 30
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 Organisation 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/greencompany/ (in Europe),
https://www.nec-display.com (in Japan) or
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)
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.
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