Acer Computer Monitor V243H User Manual

Acer LCD Monitor  
User's Guide  
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.  
         
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  
       
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, 4.6  
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  
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  
 
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:  
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  
Mercury advisory  
For projectors or electronic products containing an LCD/CRT monitor or display:  
lamp(s) inside this product contain mercury and must be recycled or disposed of  
according to local, state or federal laws. For more information, contact the  
Electronic Industries Alliance at www.eiae.org. For lamp-specific disposal  
information, check www.lamprecycle.org.  
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.  
ENERGY STAR (for selected models) is a government program (public/private  
partnership) that gives people the power to protect the environment in a cost  
effective way and without sacrificing quality or product features. Products that  
earn the ENERGY STAR prevent greenhouse gas emissions by meeting strict  
energy efficiency guidelines set by the US Environmental Protection Agency  
(EPA) and the US Department of Energy (DOE). In the average home, 75% of all  
electricity used to power home electronics is consumed while the products are  
turned off. ENERGY STAR qualified home electronic products in the off position  
use up to 50% less energy than conventional equipment. More information  
   
powermanagement.  
As an ENERGY STAR partner, Acer Inc. has determined that this product meets  
the ENERGY STAR guidelines for energy efficiency.  
Note: The statement above is applicable only to Acer LCD monitor  
with an ENERGY STAR logo.  
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 power button.  
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  
 
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.  
Congratulations!  
The display you have just purchased carries the TCO’03  
Displays label. This means that your display is designed,  
manufactured and tested according to some of the strictest  
quality and environmental requirements in the world. This  
makes for a high performance product, designed with the  
user in focus that also minimizes the impact on our natural  
environment.  
Some of the features of the TCO’03 Display requirements:  
Ergonomics  
Good visual ergonomics and image quality in order to improve the working environment  
for the user and to reduce sight and strain problems. Important parameters are luminance,  
contrast, resolution, reflectance, colour rendition and image stability.  
Energy  
Energy-saving mode after a certain time – beneficial both for the user and the  
environment  
Electrical safety  
Emissions  
Electromagnetic fields  
Noise emissions  
Ecology  
The product must be prepared for recycling and the manufacturer must have a certified  
environmental management system such as EMAS or ISO 14 001  
Restrictions on  
chlorinated and brominated flame retardants and polymers  
heavy metals such as cadmium, mercury and lead.  
The requirements included in this label have been developed by TCO Development in co-  
operation with scientists, experts, users as well as manufacturers all over the world. Since the  
end of the 1980s TCO has been involved in influencing the development of IT equipment in a  
more user-friendly direction. Our labelling system started with displays in 1992 and is now  
requested by users and IT-manufacturers all over the world.  
For more information, please visit  
We,  
Acer Computer (Shanghai) Limited  
3F, No. 168 Xizang medium road, Huangpu District,  
Shanghai, China  
Contact Person: Mr. Easy Lai  
Tel: 886-2-8691-3089 Fax: 886-2-8691-3000  
Hereby declare that:  
Product: 24" LCD Monitor  
Trade Name: Acer  
Model Number: V243H  
SKU Number: V243Hxxxx (x can be 0-9, A-Z or blank)  
Is compliant with the essential requirements and other relevant provisions of  
the following EC directives, and that all the necessary steps have been taken  
and are in force to assure that production units of the same product will  
continue comply with the requirements.  
EMC Directive 2004/108/EC as attested by conformity with the following  
harmonized standards:  
EN55022:2006, AS/NZS CISPR22:2006, Class B  
EN55024:1998 + A1:2001 + A2:2003  
EN61000-3-2:2000 +A2:2005, Class D  
EN61000-3-3:1995 + A1:2001+A2:2005  
Low Voltage Directive 2006/95/EC as attested by conformity with the following  
harmonized standard:  
EN60950-1:2001  
RoHS Directive 2002/95/EC on the Restriction of the Use of certain Hazardous  
Substances in Electrical and Electronic Equipment.  
Easy Lai / Director  
Acer Computer (Shanghai) Limited  
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 name:  
24" LCD Monitor  
Model number:  
V243H  
SKU number:  
V243Hxxxx (x can be 0-9, A-Z or blank)  
Acer America Corporation  
Name of responsible party:  
Address of responsible party:  
333 West San Carlos St.  
San Jose, CA 95110  
USA  
Contact person:  
Acer Representative  
1-254-298-4000  
Tel:  
Fax:  
1-254-298-4147  
 
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  
User’s guide  
Quick start guide  
DVI cable (only dual-  
input models)  
D-sub cable  
AC power cord  
Audio Cable (Option)  
 
Attaching/removing the base  
Attaching:  
Removing:  
Align the release button on the  
Press the release button as  
indicated, then pull in the direction  
of the arrow to remove the base.  
bottom of the monitor with the  
corresponding slots on the bottom of  
the base.  
Screen position adjustment  
To optimize the viewing 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.  
   
Connecting the power 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.  
Power 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.  
Mode  
On  
LED light  
Blue  
Power saving  
Amber  
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.  
     
Connector pin assignment  
1
6
5
10  
11  
15  
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  
Monitor ground  
DDC-serial data  
H-sync  
Blue  
Monitor ground  
DDC-return  
R-ground  
G-ground  
B-ground  
V-sync  
DDC-serial clock  
 
24-pin color display signal cable  
PIN No.  
Description  
TMDS data 2-  
PIN No.  
13  
Description  
1
2
NC  
TMDS data 2+  
TMDS data 2/4 shield  
NC  
14  
+5 V power  
3
15  
GND (return for +5 V hsync.vsync)  
Hot-plug detection  
TMDS data 0-  
4
16  
5
NC  
17  
6
DDC clock  
DDC data  
NC  
18  
TMDS data 0+  
7
19  
TMDS data 0/5 shield  
NC  
8
20  
9
TMDS data 1-  
TMDS data 1+  
TMDS data 1/3 shield  
NC  
21  
NC  
10  
11  
12  
22  
TMDS clock shield  
TMDS clock+  
23  
24  
DDC TMDS clock-  
19-pin color display signal cable*  
1917151311 9 7 5 3 1  
1816141210 8 6 4 2  
PIN No.  
Description  
TMDS Data2+  
PIN No.  
Description  
1
3
2
4
TMDS Data2 Shield  
TMDS Data2–  
TMDS Data1 Shield  
TMDS Data0+  
TMDS Data0–  
TMDS Clock Shield  
CEC  
TMDS Data1+  
TMDS Data1–  
TMDS Data0 Shield  
TMDS Clock+  
TMDS Clock–  
Reserved (N.C. on device)  
SDA  
5
6
7
8
9
10  
12  
14  
16  
18  
11  
13  
15  
17  
19  
SCL  
DDC/CEC Ground  
Hot Plug Detect  
+5V Power  
* only for certain models  
Standard timing table  
Mode  
Resolution  
640x480  
640x480  
640x480  
640x480  
720x400  
800x600  
800x600  
800x600  
800x600  
832x624  
1024x768  
1024x768  
1024x768  
1152x870  
1152x864  
1280x960  
1280x1024  
1280x1024  
1280x720  
1280x768  
1
2
60  
72  
75  
66.7  
70  
56  
60  
72  
75  
74.55  
60  
70  
75  
75  
75  
60  
60  
75  
60  
60  
75  
60  
60  
75  
60  
60  
60  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
VGA  
3
MAC  
4
VESA  
5
6
7
SVGA  
8
9
MAC  
XGA  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
MAC  
VESA  
SXGA  
VESA  
1280x768  
1280x800  
WXGA 1360x768  
1440x900  
WXGA+  
1440x900  
SXGA+  
UXGA  
1440x1050  
1600x1200  
1680x1050  
28  
60  
75  
60  
60  
Hz  
Hz  
Hz  
Hz  
WSXGA+  
1680x1050  
1600x1200  
1920x1080  
29  
30  
31  
UXGA  
VESA  
 
Installation  
To install the monitor on your host system, please follow the steps below:  
Steps  
1
Connect the video cable  
a
b
c
Make sure both the monitor and computer are switched off.  
Connect the VGA video cable to the computer.  
Connect the digital cable (only for dual-input models).  
(1) Make 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 computer's port.  
2
3
4
Connect the power cord  
Connect the power cord to the monitor, then to a properly grounded AC  
outlet.  
Turn on the monitor and computer  
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.  
 
User controls  
Front panel controls  
1
2
Power LED: Lights up to indicate the power is turned on.  
Power Switch: Turn the power on or off.  
3.4 < / > : Press < or > to navigate to the desired function, press Enter to  
select the function. Press < or > to change the settings of the  
current function.  
5
Menu/Enter: Activate the OSD menu when the OSD is off or activate  
/ deactivate the adjustment function when the OSD is on.  
Auto adjust button/Exit:  
6
a. When the OSD menu is active, this button will act as the exit key  
(exit OSD menu).  
b. When the OSD menu is inactive, press this button for two seconds to  
activate the Auto Adjustment function. The Auto Adjustment function  
is used to set the HPos, VPos, Clock and Focus.  
7
Empowering Key/Exit:  
a. When the OSD menu is active, this button will act as the exit key  
(exit OSD menu).  
b. When the OSD menu is inactive, press this button to select scenario  
mode.  
How to adjust a setting  
1
2
3
Press the Menu button to activate the OSD window.  
Press < or > to select the desired function.  
Press the Menu button again to select the function that you want to  
adjust.  
4
5
Press < or > to change the settings of the current function.  
To exit and save, select the exit function. If you want to adjust any other  
function, repeat steps 2 to 4.  
A. Acer eColor Management: If "Acer eColor Management" is selected,  
the Acer eColor Management OSD will appear.  
B. User: If "User" is selected, the standard OSD will appear.  
I. Only analog-input mode  
II. Only digital-input mode  
Acer eColor Management  
Operation instructions  
1
Press the  
Empowering Key to open the Acer eColor Management  
OSD and access the scenario modes.  
2
3
Press "<" or ">" to select the mode.  
Press the Auto-adjust button to confirm the mode and run Auto  
Adjust.  
Features and benefits  
Main  
menu  
icon  
Sub menu item  
User mode  
Description  
User-defined. Settings can be fine-tuned to  
suit any situation.  
Text mode  
Optimal balance of brightness and contrast to  
prevent eyestrain. The most comfortable way  
to read onscreen text.  
Standard mode  
Graphic mode  
Movie mode  
Default settings. Reflects native display  
capability.  
Enhances colors and emphasizes fine detail.  
Pictures and photographs appear in vibrant  
colors with sharp detail.  
Displays scenes in clearest detail. Presents  
great visuals, even in unsuitably-lit  
environments.  
User  
Main  
Sub  
menu menu  
Sub menu item  
Contrast  
Description  
icon  
icon  
Adjusts the contrast between the  
foreground and background of the  
screen image.  
Brightness  
ACM  
Adjusts the background brightness of the  
screen image.  
ACM (Adaptive Contrast Management)  
ACM On/Off switch, default Off.  
Focus  
Adjusts picture focus (available in analog  
mode only).  
Clock  
Adjusts the picture clock (available in  
analog mode only).  
H. Position  
V. Position  
Warm  
Adjusts the horizontal position (available  
in analog mode only).  
Adjusts the vertical position (available in  
analog mode only).  
N/A  
N/A  
Sets the color temperature to warm  
white.  
Cool  
Sets the color temperature to cool white.  
Adjusts red intensity.  
User/red  
User/green  
User/blue  
Adjusts green intensity.  
Adjusts blue intensity.  
 
Main  
Sub  
menu menu  
Sub menu item  
English  
Description  
icon  
icon  
N/A  
N/A  
Language selection.  
繁體中文  
Deutsch  
Français  
Español  
Italiano  
简体中文  
日本語  
Suomi  
EMEA version OSD only.  
Nederlands  
Русский  
H. Position  
Adjusts the horizontal position of the  
OSD.  
V. Position  
Adjusts the vertical position of the OSD.  
Adjusts the OSD timeout.  
OSD Timeout  
N/A  
N/A  
Input Source  
Select input signal from D-Sub or DVI-D or HDMI  
Select Wide mode setting for Full screen,  
Aspect ratio or 1:1 mode  
Wide Mode  
N/A  
N/A  
DDC/CI  
Turns on/off DDC/CI support  
Information  
Shows the resolution, H/V frequency,  
input port and serial number for current  
input.  
N/A  
N/A  
Reset  
Exit  
Clears Auto-configuration changes and  
sets the color temperature to Warm.  
Saves user changes and closes the OSD.  
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  
Blue  
Remedy  
No picture visible  
Using the OSD, 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.  
Amber  
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  
Check if the specification of graphics  
adapter and monitor is in compliance  
which may be causing the input signal  
frequency mismatch.  
Image is missing, Using the OSD, adjust focus, clock, H-  
off-center, too  
large or too  
small on the  
screen.  
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.  
   
DVI mode  
Problem  
LED status  
Blue  
Remedy  
No picture visible  
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.  
Amber  
Check if the video signal cable is  
properly connected at the back of  
monitor.  
Check that the computer system is  
switched on and in power saving/  
standby mode.  
 

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