ACER ED273 User Manual

Acer LCD M onitor  
Users Guide  
Special notes on LCD m onitors  
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.  
Inform ation for your safety and  
com fort  
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.  
iii  
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  
iv  
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 strips input  
rating.  
This products 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 pow er  
outlet that is not properly grounded m ay 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  
v
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 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:  
vi  
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)  
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  
vii  
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  
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  
viii  
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.  
ix  
Declaration of Conformity  
We,  
Acer Incorporated  
8F, 88, Sec. 1, Xintai 5th Rd., Xizhi, New Taipei City 221, Taiwan  
Contact Person: Mr. RU Jan, e-mail:[email protected]  
And,  
Acer Italy s.r.l  
Via Lepe t, 40, 20020 Lainate (MI) Italy  
Tel: +39-02-939-921 ,Fax: +39-02 9399-2913  
Declare under our own responsibility that the product:  
Product:  
LCD Monitor  
Acer  
Trade Name:  
Model Number:  
SKU Number:  
ED273  
ED273  
xxxxxx;  
(“x” = 0~9, a ~ z, A ~ Z, or blank)  
We, Acer Incorporated, hereby declare under our sole responsibility that the product described above is in  
conformity with the relevant Union harmonization legislations as below Directive and following harmonized  
standards and/or other relevant standards have been applied:  
EMC Directive: 2014/30/EU  
EN 55022:2010+AC:2011 Class B  
EN 55024:2010  
EN 61000-3-2:2006+A2:2009 Class D  
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 affixing CE marking: 2016.  
_______________________________  
RU Jan / Sr. Manager  
Acer Incorporated (Taipei, Taiwan)  
19/09/2016  
Date  
Acer America Corporation  
333 West San Carlos St., San Jose  
Suite 1500  
CA 95110, U. S. A.  
Tel : 254-298-4000  
Fax : 254-298-4147  
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  
ED273  
Model Number:  
SKU Number:  
ED273  
xxxxxx (“x” = 0~9, a ~ z, or  
A ~ Z)  
Name of Responsible Party:  
Address of Responsible Party:  
Acer America Corporation  
333 West San Carlos St.  
Suite 1500 San Jose, CA  
95110 U. S. A.  
Contact Person:  
Phone No.:  
Fax No.:  
Acer Representative  
254-298-4000  
254-298-4147  
Special notes on LCD monitors  
iii  
Information for your safety and comfort  
Safety instructions  
iii  
iii  
Cleaning your monitor  
iii  
Connecting/disconnecting the device  
Accessibility  
Safe listening  
Warnings  
Using electrical power  
iii  
iv  
iv  
iv  
iv  
v
Product servicing  
Potentially explosive environments  
Additional safety information  
IT Equipment Recycling Information  
Disposal instructions  
LCD pixel statement  
Tips and information for comfortable use  
Declaration of Conformity  
vi  
vi  
vi  
vii  
vii  
vii  
Federal Communications Commission  
Declaration of Conformity  
Unpacking  
1
2
3
4
4
4
5
Attaching/ Removing the base  
Screen position adjustment  
Connecting the Power cord  
Power saving  
Display Data Channel (DDC)  
Connector pin assignment  
Standard timing table  
7
Installation  
8
9
9
10  
10  
11  
12  
13  
14  
Users controls  
Using the Shortcut Menu  
Using the OSD Menus  
Image Settings  
Image Adjustment  
OSD Settings  
Other Settings  
Information Menu  
Trouble shooting  
VGA Mode  
15  
15  
16  
16  
DVI mode  
HDMI mode  
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  
Adapter  
D-sub cable  
DVI cable (Optional)  
AC Power cord  
HDM I cable (Optional)  
Audio cable (Optional)  
1
Attaching/ Removing the base  
Take out the monitor, stand and base from the package, put them on smooth surface.  
Align the stand for the back cover portion of the monitor, insert the back cover, ensure that the  
monitor and.standconnection is stable, do not shake.  
1.  
2.  
Align base and stand, insert the base to stand, rotating hand screw until tightening, fix the base.  
3.  
Remove: Press release bottom and reverse the steps to remove the base.  
Warning:  
Below actions are not allowed while moving and walking: high adjustment, tilt,  
swivel and pivot because of safety requirement.  
To prevent fragile panel broken, when moving and disassembling the product , it  
must pull the monitor head to the top at first and place the horizontal direction on  
the table.  
2
Screen position adjustment  
To optimize the viewving position, you can adjust the monitor tilt by using  
both of your hands to hold the edges of the monitor as shown below. The  
monitor can be adjusted to 15 degrees up or 5 degrees down.  
3
Connecting the Pow er cord  
Check first 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 power cord to the AC inlet, 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.  
Pow er saving  
The monitor will be switched to “power saving” mode by the control signal from the  
display controller, as indicated by the amber-colored power LED.  
M ode  
On  
LED light  
Blue  
Power saving  
Flicker  
The power saving mode will be kept until a control signal has been detected or the  
keyboard or mouse is activated. The recovery time from “power saving” mode back to  
“on” is around 3 seconds.  
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.  
4
Connector pin assignm ent  
1
5
10  
15  
6
11  
15-pin color display signal cable  
PIN No. Description  
PIN No. Description  
1
2
3
4
5
6
7
8
Red  
9
+5 V  
Green  
10  
11  
12  
13  
14  
15  
Logic ground  
M onitor ground  
DDC-serial data  
H-sync  
Blue  
M onitor ground  
DDC-return  
R-ground  
G-ground  
B-ground  
V-sync  
DDC-serial clock  
19 1715 13 11 9 7 5 3 1  
18 1614 12 10 8 6 4 2  
19-pin color display signal cable  
Št. nožice  
Opis  
TMDS Data2+  
Št. nožice  
Opis  
TMDS Data2 (shield)  
1
3
5
2
4
6
TMDS Data2-  
TMDS Data1+  
TMDS Data1 (shield)  
TMDS Data1-  
7
TMDS Data0+  
TMDS Data0-  
TMDS Clock (shield)  
CEC  
8
TMDS Data0 (shield)  
TMDS Clock+  
TMDS Clock-  
Reserved (N.C.)  
SDA  
9
10  
12  
14  
16  
18  
11  
13  
15  
17  
19  
SCL  
DDC/CEC Ground  
Hot Plug Detect  
+5 V  
5
24-pin color display signal cable  
PIN No.  
Description  
TM DS data 2-  
PIN No.  
13  
Description  
1
2
3
NC  
TM DS data 2+  
14  
+5 V power  
TM DS data 2/4 shield  
15  
GND (return for +5 V hsync.vsync)  
4
5
NC  
NC  
16  
17  
Hot-plug detection  
TM DS data 0-  
6
7
DDC clock  
DDC data  
18  
19  
TM DS data 0+  
TM DS data 0/5 shield  
8
NC  
20  
21  
22  
23  
24  
NC  
9
TM DS data 1-  
TM DS data 1+  
TM DS data 1/3 shield  
NC  
NC  
10  
11  
12  
TM DS clock shield  
TM DS clock+  
DDC TM DS clock-  
6
Standard tim ing table  
No.  
1
Mode  
VGA  
Resolution  
640x480  
Refresh Rate  
60  
72  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
2
640x480  
640x480  
3
MAC  
VESA  
66.7  
70  
56  
60  
72  
60  
70  
75  
60  
60  
60  
60  
60  
60  
60  
60  
60  
4
720x400  
5
800x600  
6
800x600  
SVGA  
7
800x600  
8
1024x768  
1024x768  
1152x864  
1280x960  
1280x1024  
1280x720  
1280x800  
1360x768  
1440x900  
1680x1050  
1600x1200  
1920x1080  
XGA  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
VESA  
SXGA  
VESA  
W XGA  
W XGA+  
W SXGA+  
UXGA  
VESA  
7
Installation  
To install the monitor on your host system, please follow the steps below:  
Steps  
1
Connect the video cable  
a
M ake sure both the monitor and computer are switched off.  
Connect the VGA video cable to the computer.  
b
c
Connect the digital cable (only for dual-input models).  
(1) M ake sure both the monitor and computer are switched off.  
(2) Connect one end of the 24-pin DVI cable to the back of the monitor and  
the other end to the computers port.  
(3) HDM I Cable (Optional, only HDM I-Input M odel)  
a. M ake sure both the monitor and computer are powered-ON  
b.Connect the HDMI cable to the computer.  
Connect the power cord  
.
.
2
Connect the power cord to the monitor, then to a properly grounded AC outlet.  
Turn on the monitor and computer  
3
4
Turn on the monitor first, then the computer. This sequence is very important.  
If the monitor does not function properly, please refer to the troubleshooting section  
to diagnose the problem.  
HDMI  
AUDIO OUT  
AUDIO IN  
VGA  
Adapter  
DVI-IN  
HDMI  
In order to prevent damage to the monitor, do not lift the monitor by its base.  
8
Users controls  
No. Icon  
Item  
Description  
Power button/  
indicator  
Turns the monitor on/off.  
1, 2  
Blue indicates power on. Blue flicker standby/power saving mode.  
If the OSD is active, press the Minus or Plus button to toggle between the  
OSD options.  
3, 4  
Minus / plus  
/
5
6
OSD functions  
Press to view the OSD. Press again to enter a selection in the OSD.  
If the OSD is active, press Auto to exit the OSD. Once the OSD is inactive,  
press Auto and the monitor will automatically optimize the display position,  
focus, and clock of your display.  
Auto adjust button /  
exit  
9
Using the OSD Menus  
Note: The following content is for general reference only. Actual  
product specifications may vary.  
Image Settings  
Contrast  
Brightness  
Color Temp.  
Auto Adjust  
USER  
Color Adjust  
1920 1080  
Purpose:  
You can adjust the picture parameters by switching image modes and adjust the values of contrast, brightness,  
color temperature,auto adjust,color adjust.  
Steps:  
1.Press Menu key to enter the main menu interface.  
2.Press MENU key to enter the setting you want.  
3.Press ◄ or ► to adjust the value. It applies for adjusting contrast, brightness, color temp and other parameters.  
10  
Using the OSD Menus  
Note: The following content is for general reference only. Actual  
product specifications may vary.  
Image Adjustment  
H.Position  
V.Position  
50-  
50-  
50-  
Clock  
Phase  
55-  
1920 1080  
Purpose:  
When the input source is selected VGA, you can adjust the VGA parameters. It is for adjusting VGA H position,  
V Position, clock and phase.  
Steps:  
1.Press Menu key to enter the main menu interface.  
2.Press ◄ key to enter the VGA parameter setting interface. (You can select Auto Adjust and press ◄ or ► to  
adjust the VGA parameters automatically or adjust it manually)  
3.Select H Position and press ◄ or ► to adjust the H Position  
4.Select V Position and press ◄ or ► to adjust the V position.  
5.Select Clock and press ◄ or ► to adjust the clock.  
6.Select Phase and press ◄ or ► to adjust the phase.  
11  
OSD Settings  
Note: The following content is for general reference only. Actual  
product specifications may vary.  
English  
Language  
OSD.H.Pos.  
OSD.V.Pos.  
OSD Timer  
50-  
50-  
10-  
Transparency  
0-  
1920 1080  
Purpose:  
You can set the language, blending and OSD duration of the menu.  
Steps:  
1.Press MENU key to enter the main menu interface.  
2.Press ◄ key twice and press MENU key to enter the Languageinterface, press ◄ or ► to switch  
the language you want.  
3.Select OSD H.Pos/OSD V.Pos to adjust the position of OSD with ◄ or ►.  
4.Select OSD Timer to adjust the OSD duration with ◄ or ►: 5Sec~60Sec.  
5.Select Transparency to adjust the OSD transparency value with ◄ or ►.  
6.Press AUTO key to return to the main menu after accomplishing the adjustment.  
12  
Other Settings  
Note: The following content is for general reference only. Actual  
product specifications may vary.  
PC  
GAME  
VGA  
16:9 AUTO 4:3  
MOVIE  
Mode  
Signal Source  
DVI  
Aspect Ratio  
0n  
0n  
Off  
Off  
DCR  
Over Drive  
Blue Light Filter  
0-  
1920 1080  
Attention:The “Blue Light Filter”function is in the next page of OSD.  
Purpose:  
You can set Mode,Signal Source,Aspect Ratio,DCR,Over Drive,Blue Light Filter.  
Steps:  
1.Press MENU key to enter the main menu interface.  
2.Press triple◄ key and press MENU key to enter the Mode interface, press ◄ or ► to switch the mode  
between PC/GAME/MOVIE.  
3.Press ◄ or ► to change the Signal Source between VGA and DVI.  
4.Press ◄ or ► to switch the Aspect Ratio between 16:9/AUTO/4:3.  
5.Press ◄ or ► to switch the DCR On/Off.  
6.Press ◄ or ► to switch the Over Drive On/Off.  
7.Press ◄ or ► to adjust “Blue Light Filter”from 0 to 100.  
8.Press Menu key to return to the main menu after accomplishing the adjustment.  
13  
Information M enu  
Note: The following content is for general reference only. Actual  
product specifications may vary.  
Reset  
SN : MMT2XCN001604000013900  
1920 1080  
Purpose:  
You can reset settings to the factory defaults.  
Steps:  
1.Press MENU key to enter the main menu interface.  
2.Press ◄ key 4 times and press MENU key to reset settings to the factory defaults.  
14  
Troubleshooting  
Before sending your LCD monitor for servicing, please check the troubleshooting list  
below to see if you can self-diagnose the problem.  
VGA Mode  
Problem  
LED status  
Rem edy  
No picture visible  
Blue  
Using the OSD menu, adjust brightness  
and contrast to maximum or reset to their  
default settings.  
Off  
Check the power switch.  
Check if the power cord is properly  
connected to the monitor.  
Flicker  
Check if the video signal cable is properly  
connected at the back of monitor.  
Check if the computer system is switched  
on and in power saving/standby mode.  
Unstable picture  
Abnormal picture  
Blue  
Check if the specification of graphics  
adapter and monitor is in compliance  
which may be causing the input signal  
frequency mismatch.  
Image is missing,  
off-center, too  
large or too small  
on the screen.  
Using the OSD menu, adjust focus, clock,  
H-position and V-position with non-  
standard signals.  
Check the display setting on your system.  
In case of a missing image, please select  
another resolution or vertical refresh rate.  
Wait for a few seconds after adjusting  
the size of the image before changing  
or disconnecting the signal cable or  
switching off the monitor.  
15  
DVI mode  
Problem  
LED status  
Blue  
Rem edy  
No picture visible  
Using the OSD menu, adjust brightness and  
contrast to maximum or reset to their default  
settings.  
Off  
Check the power switch.  
Check if the AC power cord is properly  
connected to the monitor.  
Flicker  
Check if the video signal cable is properly  
connected at the back of monitor.  
Check if the computer system is switched on  
and in power saving/standby mode.  
HDMI mode  
Problem  
LED status  
Rem edy  
No picture visible  
Blue  
Using the OSD, adjust brightness and contrast  
to maximum or reset to their default settings.  
Off  
Check the power switch.  
Check if the AC power cord is properly  
connected to the monitor.  
Check if the video signal cable is properly  
connected at the back of monitor.  
Flicker  
Check that the computer system is switched  
on and in power saving/ standby mode.  
16  

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