Acer KB242HYL User Manual
Displayed below is the user manual for KB242HYL by Acer which is a product in the Computer Monitors category. This manual has pages.
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Acer LCD Monitor
User's Guide
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.
Model number: __________________________________
Serial number: ___________________________________
Date of purchase: ________________________________
Place of purchase: ________________________________
Copyright © 2020. Acer Incorporated.
All Rights Reserved.
Acer LCD Monitor User's Guide
Original Issue: 07/2020
Acer LCD Monitor User's Guide
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.
iii
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.
•Acer monitor is purposed for video and visual display of information
obtained from electronic devices.
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.
•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
v
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, type
SPT-2, 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
•the product exhibits a distinct change in performance, indicating a need
for service
•the product does not operate normally after following the operating
instructions
vi
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 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 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.
For more information and help when recycling, please go to this website:
Visit www. .com for further information on the features and benefits
of our other products.
http://www.acer-group.com/public/Sustainability/
acer-group
vii
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
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.
http://www.acer‐group.com/public/Sustainability
viii
This product has been shipped enabled for power management:
•Activate the Display 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
•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
ix
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
•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.
TABLE OF CONTENTS
UNPACKING............................................................................................ 1
ATTACHING / REMOVING THE BASE..................................................... 2
SCREEN POSITION ADJUSTMENT .......................................................... 3
CONNECTING THE POWER CORD.......................................................... 4
SAFETY PRECAUTION............................................................................. 4
CLEANING YOUR MONITOR .................................................................. 4
POWER SAVING...................................................................................... 5
DDC......................................................................................................... 5
CONNECTOR PIN ASSIGNMENT............................................................. 6
STANDARD TIMING TABLE .................................................................... 8
INSTALLATION........................................................................................ 9
USER CONTROLS .................................................................................. 10
TROUBLESHOOTING ............................................................................ 21
EN-1
UNPACKING
Please check the following items are present when you unpack the box, and
save the packing materials in case you will need to ship or transport the
monitor in future.
LCD Monitor Quick Start Guide AC Power Cord
D-Sub Cable
(Optional)
HDMI Cable
(Optional)
Audio Cable
(Optional)
EN-2
ATTACHING / REMOVING THE BASE
Note: Remove the monitor and monitor base from its packaging.
Carefully place the monitor face-down on a stable surface -- use a
cloth to avoid scratching the screen.
1.
Attach the monitor stand arm to the
base.
2.
Ensure that the base is locked onto the
monitor stand arm.
Note: 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
fix your monitor on the wall.
EN-3
SCREEN POSITION ADJUSTMENT
In order to optimize the best viewing position, you can adjust the tilt of the
monitor by using both of your hands to hold the edges of the monitor as
shown in the figure below.
The monitor can be adjusted to 25 degrees up or 5 degrees down as indicated
by arrow below.
-5
oo
EN-4
CONNECTING THE POWER CORD
Check first to make sure that the power cord you use is the correct type
required for your area.
This monitor has a universal power supply that allows operation in either
100/120V AC or 220/240 V AC voltage area. No user-adjustment is required.
Plug one end of the power cord to the AC inlet, and plug the other end
into an AC outlet.
For unit using at 120 V AC:
Use a UL Listed Cord Set, Type SVT wire and plug rated 10 A/125 V.
For unit using at 220/240 V AC (outside of U.S.):
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.
Please confirm the distribution system in building installation shall provide
the circuit breaker rated 120/240 V, 20 A (maximum).
SAFETY PRECAUTION
Avoid placing the monitor, or any other heavy object, on the power cord
to avoid damage to the cable.
Do not expose the monitor to rain, excessive moisture, or dust.
Do not cover the ventilation slots or openings of the monitor. Always put
the monitor in a place where there is adequate ventilation.
Avoid placing the monitor against a bright background or where sun-light
or other light sources may reflect on the face of the monitor. Place the
monitor just below eye level.
Handle with care when transporting the monitor.
Refrain from giving shock or scratch to the screen, as screen is fragile.
In order to prevent damage to the monitor, do not lift the monitor by its
base.
CLEANING YOUR MONITOR
Please carefully follow the below guidelines when cleaning the monitor.
Always unplug the monitor before cleaning.
Use a soft cloth to wipe the screen and cabinet front and sides.
NEVER SPRAY OR POUR ANY LIQUID DIRECTLY ONTO THE SCREEN OR
CASE.
PLEASE DO NOT USE ANY AMMONIA OR ALCOHOL-BASED CLEANERS ON
THE LCD DISPLAY SCREEN OR CASE.
Acer will not be liable for damage resulting from use of any ammonia or
alcohol-based cleaners.
EN-5
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.
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.
DDC
To make your installation easier, the monitor is able to Plug and Play with
your system if your system also supports DDC protocol. The DDC (Display Data
Channel) 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
DDC2B standard.
State LED Light
ON Blue
Power Saving Mode Amber
EN-6
CONNECTOR PIN ASSIGNMENT
15-Pin Color Display Signal Cable
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1. Red 9. +5V
2. Green 10. Logic Ground
3. Blue 11. Monitor Ground
4. Monitor Ground 12. DDC-Serial Data
5. DDC-return 13. H-Sync
6. R-Ground 14. V-Sync
7. G-Ground 15. DDC-Serial Clock
8. B-Ground
15
610
11 15
EN-7
19-Pin Color Display Signal Cable*
* only for certain models
PIN Meaning PIN Meaning
1. TMDS Data2+ 10. TMDS Clock+
2. TMDS Data2 Shield 11. TMDS Clock Shield
3. TMDS Data2- 12. TMDS Clock-
4. TMDS Data1+ 13. CEC
5. TMDS Data1 Shield 14. Reserved (N.C. on device)
6. TMDS Data1- 15. SCL
7. TMDS Data0+ 16. SDA
8. TMDS Data0 Shield 17. DDC/CEC Ground
9. TMDS Data0- 18. +5V Power
19. Hot Plug Detect
EN-8
STANDARD TIMING TABLE
Mode Resolution Remark
1 VGA 640 x 480 60 Hz
2 VGA 640 x 480 72 Hz
3 VGA 640 x 480 75 Hz
4 MAC 640 x 480 66.66 Hz
5 VESA 720 x 400 70 Hz
6 SVGA 800 x 600 56 Hz
7 SVGA 800 x 600 60 Hz
8 SVGA 800 x 600 72 Hz
9 SVGA 800 x 600 75 Hz
10 MAC 832 x 624 74.55 Hz
11 XGA 1024 x 768 60 Hz
12 XGA 1024 x 768 70 Hz
13 XGA 1024 x 768 75 Hz
14 MAC 1152 x 870 75 Hz
15 VESA 1152 x 864 75 Hz
16 VESA 1280 x 960 60 Hz
17 SXGA 1280 x1024 60 Hz
18 SXGA 1280 x1024 75 Hz
19 VESA 1280 x 720 60 Hz
20 WXGA 1280 x 800 60 Hz
21 WXGA+ 1440 x 900 60 Hz
22 WSXGA+ 1680 x 1050 60 Hz
23 FHD 1920 x 1080 60 Hz
24 FHD 1920 x 1080 75 Hz HDMI Only.
Note: HDMI is purposely supporting the AMD FreeSync technology
and target AMD graphics solutions. For other GPUs, please contact the
graphics card manufactures whether they can support or not.
EN-9
INSTALLATION
To install the monitor to your host system, please follow the steps as given
below:
1. Turn off your monitor and unplug your computer’s power cord.
2. 2-1 Connect Video Cable
a. Make sure both the monitor and computer are powered-OFF.
b. Connect the VGA video cable to the computer.
2-2 Connect HDMI Cable (Only HDMI-input model)
a. Make sure both the monitor and computer are powered-OFF.
b. Connect the HDMI cable to the computer.
3. Connect the Audio Cable. (Optional)
4. Insert the monitor power cable into the power port at the back of the
monitor.
5. Plug the power cords of your computer and your monitor into a nearby
electrical outlet.
6. Power-ON Monitor and Computer.
Power-ON the monitor first, then power-ON the computer. This sequence is
very important
HDMI
D-Sub
HDMI
HDMI
optional
EN-10
USER CONTROLS
Base Controls
Icon Item Description
Power button/
indicator Turns the monitor on/off. Blue indicates power on.
Amber indicates standby/power saving mode.
OSD functions Press to view the OSD. Press again to enter a
selection in the OSD.
Input button Press to toggle input sources.
Volume button Press to activate the volume sliding scale.
Brightness Press the key to open the Brightness control and
set it to your preferred level.
Mode Press to trigger Mode control.
EN-11
Adjusting the OSD settings
The OSD (on-screen display) can be used for adjusting the settings of your LCD
Monitor. Press the MENU 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
Turn Mode on or off
Open the Mode control and turn Mode on or off using the adjustment arrows
(OFF/ON), and select which profile to use (Please see the OSD section for more
information).
Note: The following content is for general reference only. Actual
product specifications may vary.
1. Mode
2. Brightness
3. Volume (Optional)
4. Input selection
5. Function menu
EN-12
Adjusting the Brightness setting
Open the Brightness control and select the brightness setting using the
arrows. When you are done, use to go back one level.
Adjusting the Volume (Optional)
Open the Volume control and set the volume using the arrows. When you are
done, use to go back one level.
Selecting the Input
Open the input control and select an available input source. When you are
done, use to go back one level.
Note: Adjustment of the volume control as well as the equalizer to
other settings than the center position may increase the ear/
headphone output voltage and therefore the sound pressure level.
EN-13
The Function page
Open the Function page to select a menu function, and adjust the settings
which you want using the arrows. You can also view your monitor’s system
information from this page. When you are done, use to go back one level.
Adjusting the Picture
1. Press the MENU key to bring up the OSD.
2. Using the / keys, select Picture from the OSD. Then navigate to the
setting you wish to adjust.
3. Use the / keys to adjust the sliding scales.
4. Brightness: Adjust the brightness from 0 to 100.
Note: Adjusts the balance between light and dark shades.
EN-14
5. Contrast: adjust the contrast from 0 to 100.
6. Blue Light: filter out blue light by adjusting different Blue Light showing
ratio - 80%, 70%, 60%, 50%.
7. Black Boost: This boosts the amplitude of the dark color levels of the
display– blacks will be less black. The higher the level, the higher the
boost.
8. ACM: Turn ACM on or off. The default is off.
9. Super Sharpness technology can simulate high-resolution images by
boosting the pixel density of the original source. It can make images
sharper and clear.
10. H. Position (only Analog input model): Adjust the horizontal position
from 0 to 100.
11. V. Position (only Analog input model): Adjust the vertical position from 0
to 100.
12. Focus (only Analog input model): Adjust the focus from 0 to 100.
13. Clock (only Analog input model): Adjust the clock from 0 to 100.
Note: Sets the degree of difference between light and dark areas.
Note: Higher values allow more blue light through. For the best
protection, select a lower value.
EN-15
Adjusting the Color
1. Press the MENU key to open the OSD.
2. Using the / keys, select Color from the OSD. Then navigate to the
setting you wish to adjust.
3. Use the / keys to select setting.
4. Gamma mode allows you to adjust the luminance tone. The default value
is 2.2 (standard value for Windows).
5. Color temperature: Default is warm. You can choose Cool, Warm,
Normal, Bluelight or User.
6. Modes: Select your preferred mode.
7. sRGB mode is for getting better color matching representation with the
peripheral device, such as DSCs or printers.
8. Grayscale Mode: Turn grayscale mode On or Off.
9. 6-axis Hue: Adjust the red, green, blue, yellow, magenta and cyan hue.
EN-16
10. 6-axis Saturate: Adjust the red, green, blue, yellow, magenta and cyan
saturation.
Adjusting the Audio (Optional)
1. Press the MENU key to open the OSD.
2. Using the / keys, select Audio from the OSD. Then navigate to the
setting you wish to adjust.
3. Use the / keys to select setting.
4. Volume: Adjusts the volume.
5. Mute: Select On or Off.
EN-17
Adjusting the Performance
1. Press the MENU key to open the OSD.
2. Using the / keys, select Performance from the OSD. Then navigate to
the setting you wish to adjust.
3. Use the / keys to select setting.
4. Over Drive: Select Off, Normal, or Extreme.
5. FreeSync: Select On or Off. FreeSync is available for AMD supported
graphic cards only.
6. Refresh Rate Num: Display the panel’s current refresh rate on the screen.
Note:
1. If FreeSync is “ON”, then the Over Drive selection is set to
“Normal” automatically
2. If FreeSync is “OFF”, then the user can set Over Drive to either
one of the three settings including: (a) Extreme (b) Normal (c) Off
EN-18
Adjusting the OSD
1. Press the MENU key to open the OSD.
2. Using the / keys, select OSD from the OSD. Then navigate to the
setting you wish to adjust.
3. Use the / keys to adjust any sliding scales.
4. Language: Set the OSD menu language.
5. OSD Timeout: Adjust the delay before turning the off the OSD menu.
6. Transparency: Select the transparency when using gaming mode. The
transparency can be 0% (OFF), 20%, 40%, 60%, or 80%.
7. OSD Lock: OSD Lock function is used to prevent OSD button from being
pressed accidentally. To remove the OSD Lock message, press and hold
any key (except power button) continuously for 3 seconds until the
message disappears. If the OSD Lock message remains, please check
whether the button is stuck.
EN-19
Adjusting the System
1. Press the MENU key to open the OSD.
2. Using the / keys, select System from the OSD. Then navigate to the
setting you wish to adjust.
3. Use the / keys to select the setting.
4. Input: Select an available input source.
5. Auto Source: Automatically searches for available input sources.
6. Hot Key Assignment: Select the function of Hotkey 1 or Hotkey 2.
7. Wide Mode: You can select which screen aspect you are using. The
options are Full and Aspect.
8. DDC/CI: Allows the monitor settings to be set through the software on
the PC.
9. HDMI Black Level: You can select the level of blackness under HDMI
source. The options are Normal and Low.
10. Quick Start Mode: Enable monitor rapidly.
Note: DDC/CI, short for Display Data Channel/Command Interface,
which allows monitor controls to be sent via software.
EN-20
Product information
1. Press the MENU key to open the OSD.
2. Using the / keys, select Information to view the basic information for
your monitor and current input.
3. Reset All Settings: Resets all settings to the factory defaults.
EN-21
TROUBLESHOOTING
Before sending your LCD monitor for servicing, please check the trouble-
shooting list below to see if you can self-diagnose the problem.
(VGA Mode)
Problems Current Status Remedy
No Picture
LED ON
Using OSD, adjust brightness and
contrast to maximum or reset to
their default settings.
LED OFF
Check the power switch.
Check if AC power cord is properly
connected to the monitor.
LED displays amber color
Check if video signal cable is
properly connected at the back of
monitor.
Check if the power of computer
system is ON.
Abnormal
Picture
Unstable Picture
Check if the specification of graphics
adapter and monitor is in
compliance which may be causing
the input signal frequency
mismatch.
Display is missing, center
shift, or too small or too
large in display size
Using OSD, adjust RESOLUTION,
CLOCK, CLOCK-PHASE, H-POSITION
and V-POSITION with non-standard
signals.
Using OSD, in case of missing full-
screen image, please select other
resolution or other vertical refresh
timing.
Wait for a few seconds after
adjusting the size of the image
before changing or disconnecting
the signal cable or powering OFF the
monitor.
Abnormal
Sound
(Only Audio-
Input model)
(Optional)
No sound, or sound level
is too low
Check the audio cable with the host
PC is connected.
Check if the volume setup of the
host PC is in minimum position and
try to raise the volume level.
EN-22
(HDMI Mode)
Problems Current Status Remedy
No Picture
LED ON
Using OSD, adjust brightness
and contrast to maximum or
reset to their default settings.
LED OFF
Check the power switch.
Check if AC power cord is
properly connected to the
monitor.
LED displays amber color
Check if video signal cable is
properly connected at the back
of monitor.
Check if the power of computer
system is ON.
Abnormal Sound
(Only Audio-Input
model)
(Optional)
No sound, or sound level
is too low
Check the audio cable with the
host PC is connected.
Check if the volume setup of the
host PC is in minimum position
and try to raise the volume
level.
EN-23
KB242HYL
KB242HYL
Jul. 29, 2020
EN-24
Acer America Corporation
333 West San Carlos St.,
Suite 1500
San Jose, CA 95110
U. S. A.
Tel : 254-298-4000
Fax : 254-298-4147
www.acer.com
Federal Communications Commission
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: KB242HYL
SKU Number: KB242HYL xxxxxx
(“x” = 0~9, a ~ z, or A ~ Z)
Name of Responsible Party: Acer America Corporation
Address of Responsible Party: 333 West San Carlos St.
Suite 1500
San Jose, CA 95110
U.S.A.
Contact Person: Acer Representative
Phone No.: 254-298-4000
Fax No.: 254-298-4147