Acer LCD Monitor User's Guide
Original Issue: 08/2017
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. Ot
uct names or trademarks are used herein for identification purposes only and belong to
prod
their respective companies.
her companies'
Page 3
Special notes on LCD monitors
The following are normal with the LCD monitor and do not in
Due to the nature of the fluorescent light, the screen may flicker during
•
initial use. Turn off the power switch a
sure the flicker disappears.
You may find slightly uneven brightness on the screen dependin
•
desktop pattern you use.
The LCD screen has 99.99% or more effective pixels. It may include
•
blemishes of 0.01% o
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 cas
or turning off the power switch for a few hours.
•
Acer monitor is purposed for video and visual display of information
obtained from electronic devices.
r less such as a missing pixel or a pixel lit all the time.
e, the screen is recovered slowly by changing the image
nd then turn it on again to make
dicate a problem.
g on the
Information for your safety and
comfort
Safety instructions
iii
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.
Page 4
iv
Accessibility
Be sure that the power outlet you plug the power cord into is easily accessible
and located as clo
disconnect power from the equipment, be sure to unplug the power cord from
the electrical outlet.
se to the equipment operator as possible. When you need to
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 wa
•
•
Do not place this product on an unstable cart, stand or table. If the product
falls, it could be seriously da
Slots and openings are provided for ventilation to ensure reliable
•
operat
ion 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
the product.
To avoid damage of internal components and to prevent battery leakage,
•
do not p
Never use it under sporting, exercising, or any vibrating environment
•
which will p
devices.
lace the product on a vibrating surface.
electric shock. Never spill liquid of any kind onto or into
robably cause unexpected short current or damage internal
ter.
maged.
Using electrical power
This product should be operated from the type of power indicated on the
•
marking label. If you are not sure
your dealer or local power company.
•Do not allow anything to rest on the power cord. D
product where people will walk on the cord.
•If an extension cord is used with this product, make sure that the total
of the type of power available, consult
o not locate this
Page 5
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.
v
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
Page 6
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:
http://www.acer-group.com/public/Sustainability/
Visit www..com
of our other products.
acer-group
for further information on the features and benefits
Page 7
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
http://www.acer‐group.com/public/Sustainability
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.
Page 8
viii
This product has been shipped enabled for power management:
Activate display’s Sleep mode within 15 minutes of user inactivity.
•
•
Activate computer’s Sleep mode within 30 minutes of user inactivity.
•
Wake the computer from Sleep mode by pushing the powe
r button.
Tips and information for comfortable use
Computer users may complain of eyestrain and head
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 recurr
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.
aches after prolonged use.
ing or persistent discomfort
Finding your comfort zone
Find your comfort zone by adjusting the viewin
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
g angle of the monitor, using a
Page 9
Taking care of your vision
Long viewing hours, wearing incorrect glasses or
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
•
point downward when looking at the middle of the display.
eyes
Adjust the display brightness and/or contrast to a comfortable level for
•
enhanced text readability and g
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
•
•
cha
nging the display'
using a glare-reduction filter
•
using a display visor, such as a piece of cardboard extended fr
•
display's top front edge
•
Avoid adjusting your display to an awkward viewing angle.
Av
•
oid
periods of time.
look
ing
at
bright light so
raphics clarity.
s viewing angle
urces, such as op
contact lenses, glare, excessive
om the
ndo
en wi
ws, for extended
ix
Developing good work habits
Develop the following work habits to make your computer use more relaxing
and
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
HDMI Cable
(Optional)
Audio Cable
(Optional)
VGA Cable
(Optional)
DVI Cable
(Optional)
DP Cable
(Optional)
EN-1
Page 12
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 stand arm and the base
to the monitor, as illustrated.
Note: If installing with a wall mounting kit, it is recommended to use
M4 x 10 (L) mm screws to fix your monitor on the wall.
2.
Ensure that the base is screwed tight
onto the monitor stand arm.
EN-2
Page 13
SCREEN POSITION ADJUSTMENT
-5°
15°
In order to optimize the best viewing position, you can adjust the height/tilt
of the monitor.
• Tilt
Please see the illustration below for an example of the tilt range.
The monitor can be adjusted to 15 degrees up or 5 degrees down as indicated
by arrow below.
EN-3
Page 14
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.
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 gently 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-4
Page 15
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.
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.
EN-5
Page 16
CONNECTOR PIN ASSIGNMENT
19-Pin Color Display Signal Cable
PINMeaningPINMeaning
1.TMDS Data2+10.TMDS Clock+
2.TMDS Data2 Shield11.TMDS Clock Shield
3.TMDS Data2-12.TMDS Clock-
4.TMDS Data1+13.CEC
5.TMDS Data1 Shield14.Reserved (N.C. on device)
6.TMDS Data1-15.SCL
7.TMDS Data0+16.SDA
8.TMDS Data0 Shield17.DDC/CEC Ground
9.TMDS Data0-18.+5V Power
19.Hot Plug Detect
20-Pin Color Display Signal Cable
PINDescriptionPINDescription
1.Lane0(p)11.GND
2.GND12.Lane3(n)
3.Lane0(n)13.Config1
4.Lane1(p)14.Config2
5.GND15.AUX_CH (n)
6.Lane1(n)16.GND
7.Lane2(p)17.AUX_CH (p)
8.GND18.Hot Plug Detect
9.Lane3(n)19.DP Power_Return
10.Lane3(p)20.DP Power
EN-6
Page 17
15-Pin Color Display Signal Cable
PIN NO.DESCRIPTIONPIN NO.DESCRIPTION
1.Red9.+5V
2.Green10.Logic Ground
3.Blue11.Monitor Ground
4.Monitor Ground12.DDC-Serial Data
5.DDC-return13.H-Sync
6.R-Ground14.V-Sync
7.G-Ground15.DDC-Serial Clock
8.B-Ground
24-Pin Color Display Signal Cable
PINMeaningPINMeaning
1.TMDS Data2-13.NC
2.TMDS Data2+14.+5V Power
3.TMDS Data 2/4 Shield15.Logic Ground
4.NC16.Hot Plug Detect
5.NC17.TMDS Data0-
6.DDC Clock18.TMDS Data0+
7.DDC Data19.TMDS Data 0/5 Shield
8.NC20.NC
9.TMDS Data1-21.NC
10.TMDS Data1+22.TMDS Clock Shield
11.TMDS Data 1/3 Shield23.TMDS Clock+
12.NC24.DDC TMDS Clock-
EN-7
Page 18
Standard Timing Table
ModeResolution
1VGA640 x 48060Hz
2MAC640 x 48066.66Hz
3VESA720 x 40070Hz
4SVGA800 x 60056Hz
5SVGA800 x 60060Hz
6XGA1024 x 76860Hz
7XGA1024 x 76870Hz
8VESA1152 x 86475Hz
9SXGA1280 x102460Hz
10VESA1280 x 72060Hz
11WXGA1280 x 80060Hz
12WXGA+1440 x 90060Hz
13WSXGA+1680 x 105060Hz
14UXGA1920 x 108060Hz
15*UXGA1920 x 108085Hz
16*UXGA1920 x 1080120Hz
17**UXGA1920 x 1080240Hz
* For DisplayPort/HDMI2/HDMI1 only.
** For DisplayPort/HDMI2 only.
Note: DisplayPort/HDMI2/HDMI1 are purposely supporting the AMD
FreeSync technology and target AMD graphic solutions. For other
GPUs, please contact the graphic card manufactures whether they can
support or not.
EN-8
Page 19
INSTALLATION
Optional
To install the monitor to your host system, please follow the steps as given
below:
Steps
1. 1-1 Connect Video Cable (Only D-Sub-input Model)
a. Make sure both the monitor and computer are powered-OFF.
b. Connect the VGA video cable to the computer.
1-2 Connect HDMI Cable
a. Make sure both the monitor and computer are powered-OFF.
b. Connect the HDMI cable to the computer.
1-3 Connect DP Cable (Only DP-input Model)
a. Make sure both the monitor and computer are powered-OFF.
b. Connect the DP cable to the computer.
1-4 Connect Digital Cable (Only Dual-input model)
a. Make sure both the monitor and computer are powered-OFF.
b. Connect one end of the 24-pin DVI cable to the back of the monitor
and connect the other end to the computer's port.
2. Connect the Audio Cable (Optional)
3. Insert the monitor power cable into the power port at the back of the
monitor.
4. Plug the power cords of your computer and your monitor into a nearby
electrical outlet.
DVI-D INDP
DP or D-Sub
HDMI
DVI-D IN
HDMI HDMI
DVI-D IN HDMI DP
HDMI 1 HDMI 2
EN-9
DP
Page 20
USER CONTROLS
Base Controls
IconItemDescription
Power button/
indicator
OSD functions
Input buttonPress to toggle input sources.
Volume button Press to activate the volume sliding scale.
Turns the monitor on/off. Blue indicates power on.
Amber indicates standby/power saving mode.
Press to view the OSD. Press again to enter a
selection in the OSD.
/
Brightness/
MPRT
ModePress to trigger Mode control.
Press the key to open the Brightness control and
set it to your preferred level.
Press the key to open the MPRT control and turn it
On or Off (Selective models).
EN-10
Page 21
Adjusting the OSD settings
Note: The following content is for general reference only. Actual
product specifications may vary.
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
1. Mode
2. Brightness
MPRT (Selective models)
3. Volume
4. Input selection
5. Function menu
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).
EN-11
Page 22
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.
Turn MPRT on or off (Selective models)
Open the MPRT control and select On or Off using the arrows. When you are
done, use to go back one level.
Adjusting the Volume
Open the Volume control and set the volume using the arrows. 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-12
Page 23
Selecting the Input
Open the input control and select an available input source. When you are
done, use to go back one level.
EN-13
Page 24
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, selectPicture 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
Page 25
5.Contrast: adjust the contrast from 0 to 100.
Note: Sets the degree of difference between light and dark areas.
6.Blue Light: filter out blue light by adjusting different Blue Light showing
ratio - 80%, 70%, 60%, 50%
.
Note: Higher values allow more blue light through. For the best
protection, select a lower value.
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 (Selective models): Adjust the horizontal position from 0 to 100.
11. V. Position
12. Focus
13. Clock
(Selective models): Adjust the vertical position from 0 to 100.
(Selective models): Adjust the focus from 0 to 100.
(Selective models): Adjust the clock from 0 to 100.
EN-15
Page 26
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,
Bluelight or User.
6.sRGB mode is for getting better color matching representation with the
peripheral device, such as DSCs or printers.
7.6-axis Hue: Adjust the red, green, blue, yellow, magenta and cyan hue.
8.6-axis Saturate: Adjust the red, green, blue, yellow, magenta and cyan
saturation.
EN-16
Page 27
Adjusting the Audio
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.
Adjusting the Gaming
1.Press the MENU key to open the OSD.
2.Using the
/ keys, select Gaming from the OSD. Then navigate to the
setting you wish to adjust.
3.Use the / keys to select setting.
EN-17
Page 28
4.Over Drive: Select Off, Normal, or Extreme.
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
5.Aim point: Show an Aim point on the screen for shooting games.
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.Refresh rate num: Display the panel’s current refresh rate on the screen.
EN-18
Page 29
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 the source from an available input source.
5.Auto Source: Automatically searches for available input sources.
6.DP Format: You can select which DP format you are using. The default is
set at DP1.2.
7.Hot Key Assignment: Select the function of Hot Key 1 or Hot Key 2.
8.Wide Mode: You can select which screen aspect you are using. The
options are Full and Aspect.
9.DDC/CI: Allows the monitor settings to be set through the software on
the PC.
Note: DDC/CI, short for Display Data Channel/Command Interface,
which allows monitor controls to be sent via software.
10. HDMI Black Level: You can select the level of blackness under HDMI
source. The options are Normal and Low.
11. Quick Start Mode: Enable monitor rapidly.
EN-19
Page 30
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-20
Page 31
TROUBLESHOOTING
Before sending your LCD monitor for servicing, please check the troubleshooting list below to see if you can self-diagnose the problem.
(HDMI/DP/DVI Mode)
Problems Current Status Remedy
Using OSD, adjust brightness
No Picture
Abnormal Sound
(Only Audio-Input
model)
(Optional)
LED ON
LED OFF
LED displays amber color
No sound, or sound level
is too low
and contrast to maximum or
reset to their default settings.
Check the power switch.
Check if AC power cord is
properly connected to the
monitor.
Check if video signal cable is
properly connected at the back
of monitor.
Check if the power of computer
system is ON.
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-21
Page 32
(VGA Mode)
Problems Current Status Remedy
No PictureLED ON
LED OFF
LED displays amber color
Abnormal
Unstable Picture
Picture
Display is missing, center
shift, or too small or too
large in display size
Abnormal
Sound
No sound, or sound level
is too low
(Only AudioInput model)
(Optional)
Using OSD, adjust brightness and
contrast to maximum or reset to
their default settings.
Check the power switch.
Check if AC power cord is properly
connected to the monitor.
Check if video signal cable is
properly connected at the back of
monitor.
Check if the power of computer
system is ON.
Check if the specification of graphics
adapter and monitor is in
compliance which may be causing
the input signal frequency
mismatch.
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.
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
Page 33
EN-23
Page 34
Acer America Corporation
333 West San Carlos St.,
Suite 1500
San Jose, CA 95110
Tel : 254-298-4000
Fax : 254-298-4147
U. S. A.
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:KG251Q
SKU Number:KG251Q 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
EN-24
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