Acer XR343CK User manual

Acer LCD Monitor
User Guide

Copyright © 2020. Acer Incorporated.
All Rights Reserved.
Acer LCD Monitor User Guide
Original Issue: 07/2020
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 specically disclaims the implied warranties of merchantability or
tness 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 afxed 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 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 identication purposes only and belong
to their respective companies.

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.
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 uorescent light, the screen may icker during initial
use. Turn off the power switch and then turn it on again to make sure the icker
disappears.
• You may nd 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 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.
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.
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 re
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.
• The adapter is only used for this monitor, do not be used for other purposes.
• Your device uses one of the following power supplies:
• Manufacture: DELTA: ADP-180TB F (19.5V/180W)
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.
• 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 ts 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 certied, type SPT-2,
rated 7 A 125 V minimum, VDE approved or its equivalent, 4.6 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
qualied service personnel.
Unplug this product from the wall outlet and refer servicing to qualied 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
• 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 qualied technician to restore the product to normal condition.
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 re resulting in bodily injury or even death. Switch off
the device near 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 liqueed 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.
For more information and help when recycling, please go to this website:
https://www.acer-group.com/sustainability/en/our-products-environment.html
Visit www.acer-group.com for further information on the features and benets of our
other products.

Disposal instructions
Do not throw this electronic device into the trash when discarding. To
minimize pollution and ensure utmost protection of the global environment,
please recycle. For more information on the Waste from Electrical and
Electronics Equipment (WEEE) regulations, visit https://www.acer-group.com/
sustainability/en/our-products-environment.html .
LCD pixel statement
The LCD unit is produced with high-precision manufacturing techniques.
Nevertheless, some pixels may occasionally misre or appear as black or red dots.
This has no effect on the recorded image and does not constitute a malfunction.
Power management statement should be as below.
• Activate display’s Sleep mode within 15 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
• 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 xed 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 reections 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
• changing the display’s viewing angle
• using a glare-reduction lter
• 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.

Declaration of Conformity
We,
Acer Incorporated
8F, 88, Sec. 1, Xintai 5th Rd., Xizhi, New Taipei City221, Taiwan
And,
Acer Italy s.r.l.
Viale delle Industrie 1/A, 20020 Arese (MI), Italy
Tel: [phone],Fax: [phone]
www.acer.it
Product: LCD Monitor
Trade Name: Acer
Model Number: XR343CK
SKU Number: XR343CK xxxxxx;
(“x” = 0~9, a ~ z, A ~ Z, or blank)
We, Acer Incorporated, herebydeclare under our sole responsibility that the product described above is in conformity
with the relevant Union harmonization legislationsas below Directive and following harmonized standards and/or
other relevant standards have been applied:
EMC Directive: 2014/30/EU
EN 55032:2012/AC:2013Class B
EN 55032:2015+AC 2016 Class B
EN 61000-3-2:2014 Class D
EN 55024:2010
EN 61000-3-3:2013
LVD Directive: 2014/35/EU
EN 60950-1:2006/A11:2009/A1:2010/A12:2011/A2:2013
RoHS Directive: 2011/65/EU
EN 50581:2012
ErP Directive: 2009/125/EC
Regulation (EC) No. 1275/ 2008; EN 50564:2011
Year to begin afxing CE marking: 2020
RU Jan/Sr. Manager
Acer Incorporated (Taipei, Taiwan)
Jul.20,2020
Date
Acer Incorporated
8F, 88, Sec. 1, Xintai 5th Rd., Xizhi
New Taipei City 221, Taiwan

Acer America Corporation
333 West San Carlos St., San Jose
Suite 1500
CA 95110, U. S. A.
Tel : [phone]
Fax : [phone]
www.acer.com
Federal Communications Commission
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.
The following local Manufacturer /Importer is responsible for this declaration:
Product: LCD Monitor
Model Number: XR343CK
SKU Number: XR343CK xxxxxx
(“x” = 0~9, a ~ z, or A ~ Z)
Name of Responsible Party: Acer America Corporation
333 West San Carlos St.
Address of Responsible
Party:
Suite 1500
San Jose, CA 95110
U. S. A.
Contact Person: Acer Representative
Phone No.: 254-298-4000
Fax No.: 254-298-4147

Table of Contents
Information for your safety and comfort............................................................ii
Safety instructions.....................................................................................................ii
Special notes on LCD monitors ................................................................................ii
Cleaning your monitor ..................................................................................... ii
Accessibility ..................................................................................................... ii
Safe listening ................................................................................................... ii
Warnings.......................................................................................................... ii
Using electrical power .................................................................................... iii
Product servicing ............................................................................................ iv
Potentially explosive environments ................................................................ iv
Additional safety information....................................................................................iv
IT Equipment Recycling Information ........................................................................iv
Disposal instructions .................................................................................................v
LCD pixel statement..................................................................................................v
Tips and information for comfortable use..................................................................v
Finding your comfort zone ............................................................................... v
Taking care of your vision ............................................................................... vi
Developing good work habits ......................................................................... vi
Unpacking .............................................................................................................1
Adjusting the monitor ..........................................................................................2
Disassembly Velcro...................................................................................................2
Height Adjustment.....................................................................................................2
Tilt .............................................................................................................................3
Swivel........................................................................................................................3
Wall Mounting .......................................................................................................4
Monitor introduction ............................................................................................5
Connecting the cables ..............................................................................................5
Connecting the adapter and AC Power cord.............................................................6
Power saving ............................................................................................................6
Display Data Channel (DDC) ....................................................................................7
Standard timing table ................................................................................................9
Using the Shortcut Menu...................................................................................10
Main page .............................................................................................................. 10
Hot key1 (default: Modes) .............................................................................10
Hot key2 (default: Brightness) ....................................................................... 11
Hot key3 (Selecting the input) ....................................................................... 11
Main Menu..................................................................................................... 11
Troubleshooting .................................................................................................19

XR343CK User Guide English1
Unpacking
Please check that the following items are present when you unpack the box, and save the
packing materials in case you need to ship or transport the monitor in the future.
LCD monitor Quick start guide Warranty card
USERGUIDE
LCD Monitor NITRO XR3 Series / XR343CK P
USB cable
(Optional)
USB Type-C cable
(Optional)
HDMI cable
(Optional)
AC Power cord DP Cable (Optional)

2XR343CK User Guide English
Adjusting the monitor
• For optimal viewing, we recommend that you look at the full face of the monitor, then
adjust the monitor to the angle that is most comfortable for you.
• Hold the stand to prevent the monitor from falling when you change its angle.
• You can adjust the monitor’s angle from -5˚ to +35˚ and it allows ±30˚ swivel
adjustment from either left or right. You can also adjust the monitor’s height within
130 mm.
Disassembly Velcro
1
2
Note:
Velcro is used to prevent height adjustment burst and hurting people!
Height Adjustment
HDMI 1 HDMI 2DP 1DP 2
2
130mm
1
Note:
Please adjust the height of the monitor after pressing the top of the monitor.

XR343CK User Guide English3
Tilt
-5˚ 35˚
Swivel
30˚ 30˚

4XR343CK User Guide English
Wall Mounting
Preparing to install an optional wall mount arm.
2
3
1
This monitor can be attached to a wall mounting arm you purchase separately.
Disconnect power before this procedure. Follow these steps:
1. Remove the base.
2. Follow the manufacturer’s instructions to assemble the wall mounting arm.
3. Place the wall mounting arm onto the back of the monitor. Line up the holes of the arm
with the holes in the back of the monitor.
4. Insert the 4 screws into the holes and tighten.
5. Reconnect the cables. Refer to the user’s manual that came with the optional wall
mounting arm for instructions on attaching it to the wall.
Note:
• VESA mounting screw holes are not available for all models, please check with the
dealer.
• If installing with a wall mounting kit, it is recommended to use VESA mounting kit
(100mm x 100mm) with M4 x 10 (L) mm screws to x your monitor on the wall.

XR343CK User Guide English5
Monitor introduction
User Controls
1
2
3
4
5
External controls
1 Power button Turns the monitor on/off. Blue indicates power on. Amber indicates
standby/ power saving mode.
2 Function key
/
a. Press to view Main page. Press again to enter hotkey1 function.
b. When the Function Menu is active, press this key to view the basic
information for your monitor and current input or reset the custom
color settings to the factory defaults.
3 Function key
/
a. Press to view Main page. Press again to enter hotkey2 function.
b. When the Function Menu is active, press this button to select
scenario mode or game mode.
4 Function key
/
a. Press to view Main page. Press again to enter Input select function.
b. When the Function Menu is active, this button will quit the OSD.
5 Function key
/
a. Press to view Main page. Press again to enter next function in the
Function Menu.
b. The single toggle button on the backside of the Display bezel
operates like a joystick. To move the cursor, simply toggle the button
in four directions. Press the button to select desired option. Red
indicates operable. Grey indicates inoperable.
Connecting the cables
To install the monitor on your host system, please follow the steps below:
1. Turn off your computer and unplug your computer’s power cord.
2. Connect the signal cable to the DP (optional) and/or HDMI (optional) input socket
of the monitor, and the DP (optional) and/or HDMI (optional) output socket of the
graphics card on the computer.
3. Connect the USB Cable (optional):
Connect the USB 3.0 cable to port.
4. Connect the Type-C Cable (optional):
Connect the Type-C Cable to port for fast charge.
Connect the Type-C Cable to port.
5. Insert the monitor power cable into the power port at the back of the monitor.
6. Plug the power cords of your computer and your monitor into a nearby electrical
outlet.

6XR343CK User Guide English
HDMI1HDMI 2DP1DP 2
DP
USB Type A
USB
USB Type C
HDMI 1 HDMI 2DP 1DP 2
Note:
• Audio output is only for audio output model. Please check user manual for
more instruction.
• Charging USB devices just in DC on mode.
• Type-C Port can support power delivery charging up to 20V/4.25A.
• The charging port of USB-A can support fast charging up to 5V/1.5A, the
others are 5V/0.9A.
Connecting the adapter and AC Power cord
• Check rst to make sure that the power cord you use is the correct type
required for your area.
• The monitor has a universal power supply that allows operation in either
100/120 V AC or 220/240 V AC voltage area. No user-adjustment is required.
• Plug one end of the AC power cord to the Adapter, and plug the other end into
an AC outlet.
For units using 120 V AC:
• Use a UL-listed cord set, type SVT wire and plug rated 10 A/125 V.
For units using 220/240 V AC:
• Use a cord set consisting of H05VV-F cord and plug rated 10 A/250 V. The cord
set should have the appropriate safety approvals for the country in which the
equipment will be installed.
Power saving
The monitor will be driven into “Power Saving” mode by the control signal from the
display controller, as indicated by the amber-color power LED.
State LED Light
ON Blue
Power Saving Mode Amber
The power saving states will be kept until a control signal has been detected or the
keyboard or mouse is activated. The recovery time from Active OFF state back to
ON state is around 3 seconds.

XR343CK User Guide English7
Display Data Channel (DDC)
To make installation easier, so long as your system supports the DDC protocol, the
monitor is able to plug-and-play. The DDC is a communication protocol through
which the monitor automatically informs the host system about its capabilities; for
example, supported resolutions and corresponding timing. The monitor supports the
DDC2B standard.
20-pin color display signal cable
PIN No. Description PIN No. Description
1ML_Lane 0+ 2GND
3 ML_Lane 0- 4 ML_Lane 1+
5 GND 6 ML_Lane 1-
7ML_Lane 2+ 8GND
9 ML_Lane 2- 10 ML_Lane 3+
11 GND 12 ML_Lane 3-
13 CONFIG1 14 CONFIG2
15 AUX CH+ 16 GND
17 AUX CH- 18 Hot Plug
19 Return 20 DP_PWR
19-pin color display signal cable
PIN No. Description PIN No. Description
1TMDS Data2+ 2TMDS Data2 Shield
3 TMDS Data2- 4 TMDS Data1+
5 TMDS Data1 Shield 6 TMDS Data1-
7TMDS Data0+ 8TMDS Data0 Shield
9 TMDS Data0- 10 TMDS Clock+

8XR343CK User Guide English
PIN No. Description PIN No. Description
11 TMDS Clock Shield 12 TMDS Clock-
13 CEC 14 Reserved (N.C. on device)
15 SCL 16 SDA
17 DDC/CEC Ground 18 +5V Power
19 Hot Plug Detect
24-pin USB Type C cable
PIN No. Description PIN No. Description
A1 GND B12 GND
A2 SSTXp1 B11 SSTXp1
A3 SSTXn1 B10 SSTXn1
A4 VBUS B9 VBUS
A5 CC1 B8 CC1
A6 Dp1 B7 Dp1
A7 Dn1 B6 Dn1
A8 SBU1 B5 SBU1
A9 VBUS B4 VBUS
A10 SSTXn2 B3 SSTXn2
A11 SSTXp2 B2 SSTXp2
A12 GND B1 GND

XR343CK User Guide English9
Standard timing table
MODE
MODE Resolution
1 VGA 640x480 60Hz
2 SVGA 800x600 60Hz
3 XGA 1024x768 60Hz
4 SXGA 1280x1024 60Hz
5 VESA 1280x720 60Hz
6 WXGA 1280x800 60Hz
7WXGA+ 1680x1050 60Hz
8 UXGA 1920x1080 60Hz
9 UXGA* 2560x1440 60Hz
10 UltraWide QHD 3840x1600 60Hz
11 UltraWide QHD 3840x1600 100Hz
12 UltraWide QHD 3840x1600 144Hz
13 UltraWide QHD 3840x1600 185Hz
Note:
Item 1, 2, 3, 10 is standard timing table.
Item 4, 5, 6, 7, 8, 9is PC graphic card generate timing.
Item 11 is HDMI/DP timing only.
Item 12, 13 is DP timing only.
Item 13 is over clock timing.

10XR343CK User Guide English
Using the Shortcut Menu
Note:
The following content is for general reference only. Actual product specications may vary.
The OSD (on screen display) can be used to adjust the settings of your LCD monitor. Press
the key to open the OSD. You can use the OSD to adjust the picture quality, OSD position
and general settings. For advanced settings, please refer to following page:
Main page
Mode
Standard
Brightness
75
Input
HDMI1 (2.0)
Menu
1
2
3
4
1. Hot Key1
Modes, Volume, Gamma, Contrast, Blue Light, Over Drive, VRB, PIP/PBP
2. Hot Key2
Modes, Volume, Gamma, Contrast, Blue Light, Over Drive, VRB, PIP/PBP
3. Hot Key3
Input Switch Hot Key
4. Main Menu
Hot key1 (default: Modes)
To choose scenario mode (Action, Racing, Sports) which user-dened prole to use
or scenario mode (User, Standard, ECO, Graphics, HDR).
Modes
Racing
ECO
Sports
Graphics
User
HDR
Acon
Standard
Move OK