ACER CM2241W User Manual

Acer LCD Monitor  
User's Guide  
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.  
Acer monitor is purposed for video and visual display of information  
obtained from electronic devices.  
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.  
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:  
acer-group  
Visit www.  
of our other products.  
.com for further information on the features and benefits  
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.acergroup.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.  
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.  
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  
ConceptD  
Setup Guide  
DP Cable  
(Optional)  
HDMI Cable  
(Optional)  
USB Cable  
(Optional)  
EN-1  
 
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 Ensure that the base is screwed tight  
to the monitor, as illustrated. onto the monitor stand arm.  
2.  
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-2  
 
SCREEN POSITION ADJUSTMENT  
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.  
Only at the highest point can 25 degrees of recline be offered for the angle of  
elevation.  
5°  
ꢀꢁr  
Height Adjustment  
After pressing the top of the monitor then you can adjust the height of the  
monitor.  
1
2
120 mm  
EN-3  
 
Monitor Pivot  
Before rotating the display, lift it to the top position and then push it back to  
the utmost degree. Rotate until the monitor stops at 90°.  
ꢂꢃo  
ꢅꢂꢃo  
o  
ꢄꢀꢃPP  
Swivel  
With the built-in pedestal, you can swivel the monitor for the most  
comfortable viewing angle.  
ꢅꢆꢇꢃr  
ꢈꢆꢇꢃr  
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.  
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-5  
     
POWER SAVING  
The monitor will be driven into “Power Saving” mode by the control signal  
from the display controller, as indicated by the blinking amber power LED.  
State  
ON  
LED Light  
Amber  
Power Saving Mode  
Blinking 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-6  
   
CONNECTOR PIN ASSIGNMENT  
19-Pin Color Display Signal Cable  
PIN  
1.  
2.  
3.  
4.  
5.  
6.  
7.  
8.  
9.  
Meaning  
TMDS Data2+  
PIN  
10.  
11.  
12.  
13.  
14.  
15.  
16.  
17.  
18.  
19.  
Meaning  
TMDS Clock+  
TMDS Clock Shield  
TMDS Clock-  
CEC  
TMDS Data2 Shield  
TMDS Data2-  
TMDS Data1+  
TMDS Data1 Shield  
TMDS Data1-  
Reserved (N.C. on device)  
SCL  
TMDS Data0+  
SDA  
TMDS Data0 Shield  
TMDS Data0-  
DDC/CEC Ground  
+5V Power  
Hot Plug Detect  
20-Pin Color Display Signal Cable*  
PIN  
1.  
Description  
Lane0(p)  
GND  
PIN  
11.  
12.  
13.  
14.  
15.  
16.  
17.  
18.  
19.  
20.  
Description  
GND  
2.  
Lane3(n)  
3.  
Lane0(n)  
Lane1(p)  
GND  
Config1  
4.  
Config2  
5.  
AUX_CH (n)  
GND  
6.  
Lane1(n)  
Lane2(p)  
GND  
7.  
AUX_CH (p)  
Hot Plug Detect  
DP Power_Return  
DP Power  
8.  
9.  
Lane3(n)  
Lane3(p)  
10.  
* only for certain models  
EN-7  
 
Standard Timing Table  
Mode  
VGA  
VGA  
VGA  
MAC  
VESA  
SVGA  
SVGA  
SVGA  
SVGA  
MAC  
Resolution  
Remark  
1
2
3
4
5
6
7
8
640 x 480  
640 x 480  
640 x 480  
640 x 480  
720 x 400  
800 x 600  
800 x 600  
800 x 600  
800 x 600  
832 x 624  
1024 x 768  
1024 x 768  
1024 x 768  
1152 x 870  
1152 x 864  
1280 x 960  
1280 x1024  
1280 x1024  
1280 x 720  
1280 x 800  
1440 x 900  
1680 x 1050  
1920 x 1200  
1920 x 1200  
60 Hz  
72 Hz  
75 Hz  
66.66 Hz  
70 Hz  
56 Hz  
60 Hz  
72 Hz  
75 Hz  
74.55 Hz  
60 Hz  
70 Hz  
75 Hz  
75 Hz  
75 Hz  
60 Hz  
60 Hz  
75 Hz  
60 Hz  
60 Hz  
60 Hz  
60 Hz  
60 Hz  
75 Hz  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
XGA  
XGA  
XGA  
MAC  
VESA  
VESA  
SXGA  
SXGA  
VESA  
WXGA  
WXGA+  
WSXGA+  
UXGA  
UXGA  
Note: The DisplayPort of this monitor is purposely supporting the Adaptive-Sync  
support technology and targeting AMD graphic solutions.  
Adaptive-Sync supported AMD GPUs: AMD Radeon™ R7 260 series and R9 290 series  
graphic cards. For other GPUs, please contact the graphic card manufactures whether  
they can support or not.  
EN-8  
 
INSTALLATION  
To install the monitor to your host system, please follow the steps as given  
below:  
Steps  
1. 1-1 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.  
1-2 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.  
2. Insert the monitor power cable into the power port at the back of the  
monitor.  
3. Plug the power cords of your computer and your monitor into a nearby  
electrical outlet.  
4. Select Power-off USB charge ON/OFF to enable/disable Power-off USB  
charge function. (Optional)  
DP  
HDMI  
HDMI  
POWER  
HDMI 1  
HDMI 2  
DP  
optional  
Note: Adjustment of the volume control as well as the equalizer to  
other settings than the center position may increase the ear-/  
headphones output voltage and therefore the sound pressure level.  
EN-9  
 
USER CONTROLS  
Base Controls  
1
2
3
4
1
No.  
1
Item  
Description  
Turns the monitor on/off. Amber indicates power  
on. Blinking amber indicates standby/power saving  
mode.  
Power button/indicator  
2
3
Hotkey 1, 2 buttons  
Input button  
Press to activate user defined hotkey function.  
Press to toggle input sources.  
Press to activate the OSD menu, then use it as  
directional key to highlight the desired function.  
Press it again to enter a selection.  
4
Navi/OK button  
EN-10  
 
Adjusting the OSD settings  
Note: The following content is for general reference only. Actual  
product specifications may vary.  
Note: This product qualifies for ENERGY STAR in the “factory default”  
setting and this is the setting in which power savings will be achieved.  
Changing the factory default picture settings or enabling other  
features will increase power consumption that could exceed the limits  
necessary to qualify for ENERGY STAR rating.  
The OSD (on-screen display) can be used for adjusting the settings of your LCD  
Monitor. Press the MENU button 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  
The default function for buttons 1 and 2 are Modes and Brightness. You can  
use the Hot Key Assignment function to set these buttons to your preferred  
functions.  
1. Modes  
2. Brightness  
3. Input  
4. Menu  
EN-11  
Adjusting the Modes  
From any function page, press  
to open the Modes control and select which  
user-defined profile to use (please see The Function page section for more  
information).  
Adjusting the Brightness  
Open the Brightness control and select the brightness setting using the Navi/  
OK button. When you are done, press the Navi/OK button to exit.  
Selecting the Input  
Open the Input control and select the desired input. You can also toggle Auto  
Source On or Off. When you are done, use the Navi/OK button to exit.  
EN-12  
The Function page  
Open the Function page to select a menu function, and adjust the settings  
which you want using the Navi/OK button. When you are done, press  
to  
exit. You can also press  
Mode.  
from any function page to select your preferred  
Adjusting the Picture  
1. Press the MENU button to open the OSD.  
2. Using the Navi/OK button, select Picture from the OSD. Then navigate to  
the setting you wish to change.  
3. Use the Navi/OK button to select the setting.  
4. Brightness: Adjust the brightness from 0 to 100.  
Note: Adjusts the balance between light and dark shades.  
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.  
EN-13  
 
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.  
Adjusting the Color  
1. Press the MENU button to open the OSD.  
2. Using the Navi/OK button, select Color from the OSD. Then navigate to  
the setting you wish to change.  
3. Use the Navi/OK button to select the setting.  
4. Gamma mode allows you to adjust the luminance tone. The default value  
is 2.2 (standard value for Windows).  
EN-14  
5. Color temperature: Default is warm. You can choose Cool, Warm,  
Normal, Bluelight or User.  
6. Uniformity: Turn the Uniformity function On or Off.  
7. Modes: Select your preferred mode.  
8. Color Space: You can choose General, SMPTE-C, EBU, Rec. 709, DCI-P3,  
sRGB or AdobeRGB.  
Note:  
1. If Color Space is “DCI-P3”, “sRGB” or “AdobeRGB”, then Modes is  
respectively set to “DCI-P3”, “sRGB” or “AdobeRGB”  
automatically.  
2. If Color Space is not “DCI-P3”, “sRGB” or “AdobeRGB”, then  
Modes is set to “Standard”.  
9. Calibration: Calibrate the color of your monitor to the selected Color  
Space setting.  
10. Grayscale Mode: Turn grayscale mode On or Off.  
11. 6-axis Hue: Adjust the red, green, blue, yellow, magenta and cyan hue.  
12. 6-axis Saturate: Adjust the red, green, blue, yellow, magenta and cyan  
saturation.  
EN-15  
Adjusting the Audio  
1. Press the MENU button to open the OSD.  
2. Using the Navi/OK button, select Audio from the OSD. Then navigate to  
the setting you wish to change.  
3. Use the Navi/OK button to select the setting.  
4. Volume: Adjust the volume.  
5. Mute: Select On or Off.  
EN-16  
Adjusting the Performance  
1. Press the MENU button to open the OSD.  
2. Using the Navi/OK button, select Performance from the OSD. Then  
navigate to the setting you wish to change.  
3. Use the Navi/OK button to select the setting.  
4. Over Drive: Select Off, Normal, or Extreme.  
5. Adaptive-Sync: Select On or Off. Adaptive-Sync is available for AMD  
supported graphic cards only.  
6. Refresh rate num: Display the panel’s current refresh rate on the screen.  
7. VRB: When VRB is Extreme or Normal, VRB provides a sharper and clearer  
dynamic picture; the default is Off.  
VRB does not support PIP/PBP Mode and HDR Mode. (Selective  
models)  
When VRB is Extreme or Normal, Adaptive-Sync is automatically  
turned off.  
VRB will affect the brightness of the following: Logo, Aim Point,  
Message and Input Icon.  
VRB feature is dependent on the monitor’s maximum refresh  
rate. For monitors supporting up to 75 Hz, VRB is available  
when the refresh rate is set to 75 Hz only.  
EN-17  
8. Ultra-Low Latency: Select On to speed up the processing time of the  
display switching process.  
Note:  
1. If Adaptive-Sync is “ON”, then the Ultra-Low Latency is  
automatically turned On and grayed out.  
2. Ultra-Low Latency is not supported at resolutions below 800 x  
600.  
Adjusting the OSD  
1. Press the MENU button to open the OSD.  
2. Using the Navi/OK button, select OSD from the OSD. Then navigate to the  
setting you wish to change.  
3. Use the Navi/OK button to select the setting.  
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 of the OSD menu. 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 acciedntally. To remove the OSD Lock message, press and hold  
the Navi/OK button continuously for 3 seconds until the message  
disappears. If the OSD Lock message remains, please check whether the  
Navi/OK button is stuck.  
EN-18  
Adjusting the System  
1. Press the MENU button to open the OSD.  
2. Using the Navi/OK button, select System from the OSD. Then navigate to  
the setting you wish to adjust.  
3. Use the Navi/OK button 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, Aspect and 1:1.  
9. DDC/CI: Allows the monitor settings to be set through the software on  
the PC.  
EN-19  
 
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.  
12. LED Control: Adjust the brightness of the LED light.  
13. Power-off USB charge (Optional): Turn On or Off.  
Product information  
1. From any function page, press  
to open Information page.  
2. Reset All Settings: Reset all settings to the factory defaults.  
EN-20  
TROUBLESHOOTING  
Before sending your LCD monitor for servicing, please check the trouble-  
shooting list below to see if you can self-diagnose the problem.  
(HDMI/DP Mode)  
Problems  
Current Status  
Amber  
Remedy  
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.  
Off  
No Picture  
Check if video signal cable is  
properly connected at the back  
of monitor.  
Check if the power of computer  
system is ON.  
Blinking amber  
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.  
Abnormal Sound  
(Only Audio-Input  
model)  
No sound, or sound level  
is too low  
(Optional)  
EN-21  
 
CM2241W  
CM2241W  
Nov. 08, 2019  
EN-22  
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  
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  
CM2241W  
Model Number:  
SKU Number:  
CM2241W 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  
EN-23  
!
ENERGY STAR®  
Acer’s ENERGY STAR qualified products save you money by reducing energy  
costs and helps protect the environment without sacrificing features or  
performance. Acer is proud to offer our customers products with the ENERGY  
STAR mark.  
What is ENERGY STAR?  
Products that are ENERGY STAR qualified use less energy and prevent  
greenhouse gas emissions by meeting strict energy efficiency guidelines set by the  
U.S. Environmental Protection Agency. Acer is committed to offer products and  
services worldwide that help customers save money, conserve energy and improve  
the quality of our environment. The more energy we can save through energy  
efficiency, the more we reduce greenhouse gases and the risks of climate change.  
Acer ENERGY STAR qualified products:  
Produce less heat and reduce cooling loads, and warmerclimates.  
Automatically go into “display sleep” within 5 minutes of inactivity.  
Wake the monitor when it is in Active Off mode, move the mouse or press any  
keyboard key.  
ENERGY STAR and the ENERGY STAR mark are registered U.S.marks  
EN-24  

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