Acer ED323QU User manual

Acer LCD Monitor
User’s Guide

Copyright © 2022. Acer Incorporated.
All Rights Reserved.
Acer LCD Monitor User’s Guide
Original Issue: 01/2022
Changes may be made periodically to the information in this publication without obligation to notify
any person of such revisions or changes. Such changes will be incorporated in new editions of this
manual or supplementary documents and publications. This company makes no representations or
warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims
the implied warranties of merchantability or fitness for a particular purpose.
Record the model number, serial number, purchase date and place of purchase information in the
space provided below. The serial number and model number are recorded on the label affixed to your
computer. All correspondence concerning your unit should include the serial number, model number
and purchase information.
No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form
or by any means, electronically, mechanically, by photocopy, recording or otherwise, without the prior
written permission of Acer Incorporated.
Acer LCD Monitor User’s Guide
Model number:
Serial number:
Date of purchase:
Place of purchase:
Acer and the Acer logo are registered trademarks of Acer Incorporated. Other companies’ product
names or trademarks are used herein for identification purposes only and belong to their respective
companies.

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Special notes on LCD monitors
The following are normal with the LCD monitor and do not indicate a problem.
• Due to the nature of the fluorescent light, the screen may flicker during initial
use. Turn off the power switch and then turn it on again to make sure the
flicker disappears.
• You may find slightly uneven brightness on the screen depending on the
desktop pattern you use.
• The LCD screen has 99.99% or more effective pixels. It may include blemishes
of 0.01% or less such as a missing pixel or a pixel lit all the time.
• Due to the nature of the LCD screen, an afterimage of the previous screen may
remain after switching the image, when the same image is displayed for hours.
In this case, the screen is recovered slowly by changing the image or turning
off the power switch for a few hours.
Information for your safety and comfort
Safety instructions
Read these instructions carefully. Keep this document for future reference. Follow
all warnings and instructions marked on the product.
Cleaning your monitor
Please carefully follow these guidelines when cleaning the monitor:
• Always unplug the monitor before cleaning.
• Use a soft cloth to wipe the screen and cabinet front and sides.
Connecting/disconnecting the device
Observe the following guidelines when connecting and disconnecting power from
the LCD monitor:
• Make sure the monitor is attached to its base before connecting the power
cord to the AC power outlet.
• Make sure both the LCD monitor and the computer are turned off before
connecting any cable or unplugging the power cord.
• If the system has multiple sources of power, disconnect power from the system
by unplugging all power cords from the power supplies.

iv
Accessibility
Be sure that the power outlet you plug the power cord into is easily accessible
and located as close to the equipment operator as possible. When you need to
disconnect power from the equipment, be sure to unplug the power cord from
the electrical outlet.
Safe listening
To protect your hearing, follow these instructions.
• Gradually increase the volume until you can hear it clearly and comfortably
and without distortion.
• After setting the volume level, do not increase it after your ears have adjusted.
• Limit the amount of time listening to music at high volume.
• Avoid turning up the volume to block out noisy surroundings.
• Turn the volume down if you can’t hear people speaking near you.
Warnings
• Do not use this product near water.
• Do not place this product on an unstable cart, stand or table. If the product
falls, it could be seriously damaged.
• Slots and openings are provided for ventilation to ensure reliable operation
of the product and to protect it from overheating. These openings must not
be blocked or covered. The openings should never be blocked by placing the
product on a bed, sofa, rug or other similar surface. This product should never
be placed near or over a radiator or heat register, or in a built-in installation
unless proper ventilation is provided.
• Never push objects of any kind into this product through cabinet slots as they
may touch dangerous voltage points or short-out parts that could result in a
fire or electric shock. Never spill liquid of any kind onto or into the product.
• To avoid damage of internal components and to prevent battery leakage, do
not place the product on a vibrating surface.
• Never use it under sporting, exercising, or any vibrating environment which
will probably cause unexpected short current or damage internal devices.
Using electrical power
This product should be operated from the type of power indicated on the marking
label. If you are not sure of the type of power available, consult your dealer or
local power company.

v
• Do not allow anything to rest on the power cord. Do not locate this product
where people will walk on the cord.
• If an extension cord is used with this product, make sure that the total ampere
rating of the equipment plugged into the extension cord does not exceed
the extension cord ampere rating. Also, make sure that the total rating of all
products plugged into the wall outlet does not exceed the fuse rating.
• Do not overload a power outlet, strip or receptacle by plugging in too many
devices. The overall system load must not exceed 80% of the branch circuit
rating. If power strips are used, the load should not exceed 80% of the power
strip’s input rating.
• This product’s power cord is equipped with a three-wire grounded plug. The
plug only fits in a grounded power outlet. Make sure the power outlet is
properly grounded before inserting the power cord plug. Do not insert the plug
into a non-grounded power outlet. Contact your electrician for details.
Warning! The grounding pin is a safety feature. Using a power outlet that is
not properly grounded may result in electric shock and/or injury.
Note: The grounding pin also provides good protection from unexpected
noise produced by other nearby electrical devices that may interfere with the
performance of this product.
• Use the product only with the supplied power supply cord set. If you need to
replace the power cord set, make sure that the new power cord meets the
following requirements: detachable type, UL listed/CSA certified, rated 7 A 125
V minimum, VDE approved or its equivalent, 4.5 meters (15 feet) maximum
length.
Product servicing
Do not attempt to service this product yourself, as opening or removing covers
may expose you to dangerous voltage points or other risks. Refer all servicing to
qualified service personnel.
Unplug this product from the wall outlet and refer servicing to qualified service
personnel when:
• the power cord or plug is damaged, cut or frayed
• liquid was spilled into the product
• the product was exposed to rain or water
• the product has been dropped or the case has been damaged

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• the product exhibits a distinct change in performance, indicating a need for
service
• the product does not operate normally after following the operating
instructions
Note: Adjust only those controls that are covered by the operating
instructions, since improper adjustment of other controls may result in
damage and will often require extensive work by a qualified technician to
restore the product to normal conditiont.
Potentially explosive environments
Switch off your device in any area with a potentially explosive atmosphere
and obey all signs and instructions. Potentially explosive atmospheres include
areas where you would normally be advised to turn off your vehicle engine.
Sparks in such areas could cause an explosion or fire resulting in bodily injury or
even death. Switch off the device near gas pumps at service stations. Observe
restrictions on the use of radio equipment in fuel depots, storage and distribution
areas; chemical plants; or where blasting operations are in progress. Areas with
a potentially explosive atmosphere are often, but not always, marked. They
include below deck on boats, chemical transfer or storage facilities, vehicles using
liquefied petroleum gas (such as propane or butane), and areas where the air
contains chemicals or particles such as grain, dust or metal powders.
Additional safety information
Your device and its enhancements may contain small parts. Keep them out of the
reach of small children.
IT Equipment Recycling Information
Acer is strongly committed to environmental protection and views recycling, in the
form of salvaging and disposal of used equipment, as one of the company’s top
priorities in minimizing the burden placed on the environment.
We at Acer are very conscious of the environmental effects of our business
and strive to identify and provide the best working procedures to reduce the
environmental impact of our products.

vii
Disposal of Waste Equipment
This symbol on the product or on its packaging indicates that this product
must not be disposed of with your other household waste. Instead, it is your
responsibility to dispose of your waste equipment by handing it over to a
designated collection point for the recycling of waste electrical and electronic
equipment. The separate collection and recycling of your waste equipment at
the time of disposal will help to conserve natural resources and ensure that it is
recycled in a manner that protects human health and the environment. For more
information about where you can drop off your waste equipment for recycling,
please contact your local office,your household waste disposal service or the shop
where you purchased the product.
LCD pixel statement
The LCD unit is produced with high-precision manufacturing techniques.
Nevertheless, some pixels may occasionally misfire or appear as black or red dots.
This has no effect on the recorded image and does not constitute a malfunction.
This product has been shipped enabled for power management:
• Activate display’s Sleep mode within 5 minutes of user inactivity.
• Wake the monitor when it is in Active Off mode, move the mouse or press any
keyboard key.
Tips and information for comfortable use
Computer users may complain of eyestrain and headaches after prolonged use.
Users are also at risk of physical injury after long hours of working in front of a
computer. Long work periods, bad posture, poor work habits, stress, inadequate
working conditions, personal health and other factors greatly increase the risk of
physical injury.
Incorrect computer usage may lead to carpal tunnel syndrome, tendonitis,
tenosynovitis or other musculoskeletal disorders. The following symptoms may
appear in the hands, wrists, arms, shoulders, neck or back:
• numbness, or a burning or tingling sensation
• aching, soreness or tenderness
• pain, swelling or throbbing

viii
• stiffness or tightness
• coldness or weakness
If you have these symptoms, or any other recurring or persistent discomfort and/
or pain related to computer use, consult a physician immediately and inform your
company’s health and safety department.
The following section provides tips for more comfortable computer use.
Finding your comfort zone
Find your comfort zone by adjusting the viewing angle of the monitor, using a
footrest, or raising your sitting height to achieve maximum comfort. Observe the
following tips:
• refrain from staying too long in one fixed posture
• avoid slouching forward and/or leaning backward
• stand up and walk around regularly to remove the strain on your leg muscles
Taking care of your vision
Long viewing hours, wearing incorrect glasses or contact lenses, glare, excessive
room lighting, poorly focused screens, very small typefaces and low-contrast
displays could stress your eyes. The following sections provide suggestions on how
to reduce eyestrain.
Eyes
• Rest your eyes frequently.
• Give your eyes regular breaks by looking away from the monitor and focusing
on a distant point.
• Blink frequently to keep your eyes from drying out.
Display
• Keep your display clean.
• Keep your head at a higher level than the top edge of the display so your eyes
point downward when looking at the middle of the display.
• Adjust the display brightness and/or contrast to a comfortable level for
enhanced text readability and graphics clarity.
• Eliminate glare and reflections by:
• placing your display in such a way that the side faces the window or any
light source
• minimizing room light by using drapes, shades or blinds
• using a task light

ix
• changing the display’s viewing angle
• using a glare-reduction filter
• using a display visor, such as a piece of cardboard extended from the
display’s top front edge
Avoid adjusting your display to an awkward viewing angle.
Avoid looking at bright light sources, such as open windows, for extended periods
of time.
Developing good work habits
Develop the following work habits to make your computer use more relaxing and
productive:
• Take short breaks regularly and often.
• Perform some stretching exercises.
• Breathe fresh air as often as possible.
• Exercise regularly and maintain a healthy body.
Acer monitor is purposed for video and visual display of information obtained
from electronic devices.

x
Special notes on LCD monitors................................................................iii
Information for your safety and comfort.................................................iii
Safety instructions ............................................................................................. iii
Cleaning your monitor ............................................................................................... iii
Connecting/disconnecting the device ....................................................................... iii
Accessibility................................................................................................................ iv
Safe listening.............................................................................................................. iv
Warnings.................................................................................................................... iv
Using electrical power ............................................................................................... iv
Product servicing ........................................................................................................ v
Potentially explosive environments ........................................................................... vi
Additional safety information ............................................................................ vi
IT Equipment Recycling Information.................................................................. vi
Disposal of Waste Equipment........................................................................... vii
LCD pixel statement .......................................................................................... vii
Tips and information for comfortable use ........................................................ vii
Finding your comfort zone....................................................................................... viii
Taking care of your vision......................................................................................... viii
Developing good work habits .................................................................................... ix
Declaration of Conformity .................................................................................. x
Federal Communications Commission Declaration of Conformity .................... xi
Unpacking .............................................................................................. 1
Attaching/Removing the base ............................................................................ 2
FreeSync Premium (HDMI/DP only)............................................................................2
Adjusting the viewing angle................................................................................ 3
Connecting the power cord ................................................................................ 4
Power saving....................................................................................................... 4
Display Data Channel (DDC)................................................................................ 4
Connector pin assignment.................................................................................. 5
Standard timing table............................................................................. 6
Installation ............................................................................................. 7
Joystick................................................................................................... 8
On Screen Display (OSD) Menu............................................................... 9
Troubleshooting ....................................................................................17
Declaration of Conformity
Federal Communications Commission Declaration of Conformity