Dell Computer Monitor IN1940MW User Manual

Dell™ IN1940MW Monitor  
Information in this document is subject to change without notice.  
© 2012 Dell Inc. All rights reserved.  
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.  
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Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in  
trademarks and trade names other than its own.  
Model IN1940MWb  
May 2012 Rev. A00  
 
About Your Monitor  
Dell™ IN1940MW Monitor User's Guide  
Package Contents  
Your monitor ships with the components shown below. Ensure that you have received all the components and contact Dell if something is missing.  
NOTE: Some items may be optional and may not ship with your Monitor. Some features or media may not be  
available in certain countries.  
Monitor  
   
Stand Riser  
Stand Base  
Power Cable  
VGA Cable  
Drivers and Documentation media  
Quick Setup Guide  
Safety Information  
Product Features  
The Dell™ IN1940MW display has an active matrix, thin-film transistor (TFT), liquid-crystal display (LCD). The monitor features include:  
¦ 48.26 cm (19.0 inches) viewable area display.  
¦ 1440 x 900 resolution plus full-screen support for lower resolutions.  
¦ Tilt adjustment capabilities.  
¦ Removable stand and Video Electronics Standards Association (VESA®) 100 mm mounting holes for flexible mounting solutions.  
¦ Plug and play capability, if supported by your computer.  
¦ On-Screen Display (OSD) adjustments for ease of set-up and screen optimization.  
¦ Software and documentation media which includes an information file (INF), Image Color Matching file (ICM), and product documentation.  
¦ Security lock slot.  
 
Identifying Parts and Controls  
Front View  
Front Panel Controls  
Label Description  
Function buttons (For more information, see Operating  
1
2
Power On/Off button (with LED indicator)  
   
Back View  
Label Description  
Use  
1
2
Barcode serial number label  
To contact Dell for technical support.  
Lists the regulatory approvals.  
Regulatory rating label  
VESA mounting holes (100mm)  
(Behind attached base plate)  
3
To mount the monitor.  
4
5
Security lock slot  
To help secure your monitor.  
Dell Soundbar mounting brackets  
To attach the optional Dell Soundbar.  
Side View  
Right View  
Bottom View  
Label Description  
1
2
3
AC power cord connector  
DVI connector  
VGA connector  
Monitor Specifications  
Flat Panel Specifications  
Model  
Dell IN1940MW Monitor  
Screen type  
Panel type  
Active matrix - TFT LCD  
TN  
Screen dimensions  
Preset display area  
Horizontal  
19 inches (19-inch viewable image size)  
408.24 (H) X 255.15 (V)  
408.24 mm (16.08 inches)  
255.15 mm (10.05 inches)  
Vertical  
 
Pixel pitch  
0.2835 mm  
160° (vertical) typical, 170° (horizontal)  
typical  
Viewing angle  
Luminance output  
Contrast ratio  
Faceplate coating  
Backlight  
250 cd/m² (typical)  
1000 to 1 (typical)  
Antiglare with hard-coating 3H  
LED light bar system  
5 ms typical  
Response Time  
Color depth  
16.7 millions colors  
83% CIE1976 (typical)*  
Color Gamut  
*[IN1940MW] color gamut (typical) is based on CIE1976 (83%) and CIE1931 (72%) test standards.  
Resolution Specifications  
Model  
Dell IN1940MW Monitor  
30 kHz to 83 kHz (automatic)  
50 Hz to 76 Hz (automatic)  
Horizontal scan range  
Vertical scan range  
Maximum preset resolution 1440 x 900 at 60 Hz  
Supported Video Modes  
Video display  
capabilities (DVI  
playback)  
480i/480p/576i/576p/720p/1080i/1080P  
(Supports HDCP)  
Preset Display Modes  
Horizontal  
Frequency (kHz)  
Vertical Frequency Pixel Clock (MHz)  
(Hz)  
Sync Polarity  
(Horizontal/Vertical)  
Display Mode  
VESA, 720 x 400  
VESA, 640 x 480  
31.5  
70.1  
28.3  
-/+  
31.5  
59.9  
25.2  
-/-  
VESA, 640 x 480  
VESA, 800 x 600  
37.5  
37.9  
46.9  
48.4  
60.0  
67.5  
49.7  
64.0  
80.0  
55.9  
55.5  
75.0  
60.3  
75.0  
60.0  
75.0  
75.0  
59.8  
60.0  
75.0  
59.9  
59.9  
31.5  
40.0  
-/-  
+/+  
+/+  
-/-  
VESA, 800 x 600  
49.5  
VESA, 1024 x 768  
65.0  
VESA, 1024 x 768  
78.8  
+/+  
+/+  
-/+  
+/+  
+/+  
-/+  
+/-  
VESA, 1152 x 864  
108.0  
83.5  
VESA, 1280 x 800  
VESA, 1280 x 1024  
108.0  
135.0  
106.5  
88.8  
VESA, 1280 x 1024  
VESA, 1440 x 900 - Analog  
VESA, 1440 x 900 (CTV-R) - Digital  
Electrical Specifications  
Analog RGB, 0.7 Volts +/- 5%, positive polarity at 75 ohm input impedance  
Digital DVI-D TMDS, 600mV for each differential line, positive polarity at 50 ohm  
input impedance  
Video input signals  
Separate horizontal and vertical synchronizations, polarity-free TTL level, SOG  
(Composite SYNC on green)  
Synchronization input signals  
AC input  
voltage/frequency/current  
100 to 240 VAC/50 or 60 Hz + 3 Hz/1.6A (Max.)  
120 V: 30 A (Max.)  
240 V: 60 A (Max.)  
Inrush current  
Physical Characteristics  
Model  
Dell IN1940MW Monitor  
15-pin D-subminiature, blue connector;  
DVI-D, white connector  
Connector type  
Digital: Detachable, DVI-D, Solid pins,  
shipped detached from the monitor  
Signal cable type  
Analog: Detachable, D-Sub, 15pins,  
shipped attached to the monitor  
Dimensions (with stand)  
Height  
372.9 mm (14.68 inches)  
443.8 mm (17.47 inches)  
163.5 mm (6.44 inches)  
Width  
Depth  
Dimensions (without stand)  
Height  
290.8 mm (11.45 inches)  
443.8 mm (17.47 inches)  
52.0 mm (2.05 inches)  
Width  
Depth  
Stand dimensions  
Height  
140.4 mm (5.53 inches)  
236.0 mm (9.29 inches)  
163.5 mm (6.44 inches)  
Width  
Depth  
Weight  
Weight with packaging  
3.6 kg (7.93 lb)  
3.0 kg (6.61 lb)  
Weight with stand assembly and  
cables  
Weight without stand assembly  
(For wall mount or VESA mount 2.4 kg (5.29 lb)  
considerations - no cables)  
Weight of stand assembly  
0.3 kg (0.66 lb)  
Environmental Characteristics  
Temperature  
Operating  
0° to 40 °C (32° to 104 °F)  
Storage: -20° to 60°C (-4° to 140°F)  
Shipping: -20° to 60°C (-4° to 140°F)  
Non-operating  
Humidity  
Operating  
10% to 80% (non-condensing)  
Storage: 5% to 90% (non-condensing)  
Shipping: 5% to 90% (non-condensing)  
Non-operating  
Altitude  
Operating  
3,048 m (10,000 ft) max  
10,668 m (35,000 ft) max  
Non-operating  
78.5 BTU/hour (maximum)  
58.0 BTU/hour (typical)  
Thermal dissipation  
Power Management Modes  
If you have VESA's DPM™ compliance display card or software installed in your PC, the monitor can automatically reduce its power consumption when not in use.  
This is referred to as Power Save Mode*. If the computer detects input from keyboard, mouse, or other input devices, the monitor automatically resumes  
functioning. The following table shows the power consumption and signaling of this automatic power saving feature:  
VESA Modes  
Horizontal Sync  
Vertical Sync  
Video  
Power Indicator  
Power Consumption  
Normal operation  
Active  
Active  
Active  
White  
23 W (maximum)  
Normal operation  
Active-off mode  
Switch off  
Active  
Inactive  
-
Active  
Inactive  
-
Active  
Blanked  
-
White  
Amber  
Off  
17 W (typical)  
Less than 0.5 W  
Less than 0.5 W  
The OSD will only function in the normal operation mode.  
Activate the computer and the monitor to gain access to the OSD.  
* Zero power consumption in OFF mode can only be achieved by disconnecting the main cable from the monitor.  
** Maximum power consumption with max luminance and Contrast, Dell Soundbar, and USB active.  
 
Pin Assignments  
VGA Connector  
Pin  
15-pin Side of the Connected Signal Cable  
Number  
1
Video-Red  
Video-Green  
Video-Blue  
GND  
2
3
4
5
Self-test  
GND-R  
6
7
GND-G  
8
GND-B  
9
Computer 5V/3.3V  
GND-sync  
GND  
10  
11  
12  
13  
14  
15  
DDC data  
H-sync  
V-sync  
DDC clock  
DVI Connector  
Pin  
Number  
24-pin Side of the Connected Signal  
Cable  
1
2
3
4
5
TMDS RX2-  
TMDS RX2+  
TMDS Ground  
Floating  
Floating  
6
DDC Clock  
DDC Data  
7
8
Floating  
9
TMDS RX1-  
TMDS RX1+  
TMDS Ground  
Floating  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
Floating  
+5V/+3.3V power  
Self test  
Hot Plug Detect  
TMDS RX0-  
TMDS RX0+  
TMDS Ground  
Floating  
Floating  
22  
23  
24  
TMDS Ground  
TMDS Clock+  
TMDS Clock-  
Plug and Play Capability  
You can install the monitor in any Plug and Play-compatible system. The monitor automatically provides its Extended Display Identification Data (EDID) to the  
computer using Display Data Channel (DDC) protocols so the computer can configure itself and optimize the monitor settings. Most monitor installations are  
automatic; you can select different settings if desired. For more information about changing the monitor settings, see Operating the Monitor.  
LCD Monitor Quality and Pixel Policy  
During the LCD Monitor manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state. The visible result is a fixed pixel  
that appears as an extremely tiny dark or bright discolored dot. When the pixel remains permanently lit, it is known as a “bright dot.” When the pixel remains black, it  
is known as a “dark dot.” In almost every case, these fixed pixels are hard to see and do not detract from display quality or usability. A display with 1 to 5 bright/dark  
dot is considered normal and within competitive standards. For more information, visit Dell Support site at: support.dell.com.  
Maintenance Guidelines  
Cleaning Your Monitor  
WARNING: Read and follow the safety instructions before cleaning the monitor.  
WARNING: Before cleaning the monitor, unplug the monitor power cable from the electrical outlet.  
For best practices, follow the instructions in the list below while unpacking, cleaning, or handling your monitor:  
To clean the monitor screen, lightly dampen a soft, clean cloth with water. If possible, use a special screen-cleaning tissue or solution suitable for the antistatic  
coating. Do not use benzene, thinner, ammonia, abrasive cleaners, or compressed air.  
Use a lightly-dampened, warm cloth to clean the monitor. Avoid using detergent of any kind as some detergents leave a milky film on the monitor.  
If you notice white powder when you unpack your monitor, wipe it off with a cloth.  
Handle your monitor with care as a darker-colored monitor may scratch and show white scuff marks more than a lighter-colored monitor.  
To help maintain the best image quality on your monitor, use a dynamically changing screen saver and turn off your monitor when not in use.  
     
Setting Up the Monitor  
Dell™ IN1940MW Monitor User's Guide  
Attaching the Stand  
NOTE: The stand base is detached when the monitor is shipped from the factory.  
1. Assemble the stand riser to stand base.  
a. Place the monitor stand base on a stable table top.  
b. Slide the monitor stand body in the correct direction down onto the stand base until it clicks into place.  
   
2 Attach the stand assembly to the monitor.  
a. Place the monitor on a soft cloth or cushion near the edge of a desk.  
b. Align the stand assembly bracket to the monitor groove.  
c. Slide the bracket towards the monitor until it locks in place.  
Removing the Monitor Stand for VESA Wall Mount  
To remove the stand assembly from the monitor:  
1. Place the monitor panel on soft cloth or cushion on a stable flat table.  
2. Use a long screwdriver to push the release latch located in a hole just above the stand.  
3. Once the latch is released, remove the stand assembly from the monitor.  
 
Connecting Your Monitor  
WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions.  
To connect your monitor to the computer:  
1. Turn off your computer and disconnect the power cable.  
Connect the blue (VGA) cable from your monitor to your computer.  
NOTE: If your computer supports a DVI connector, connect the white DVI cable (optional) from your monitor to your computer.  
NOTE: Do not connect both the VGA and the DVI cables to the computer as all monitors ship with the VGA cable attached to the  
monitor.  
2. Connect either the white (digital DVI-D) or the blue (analog VGA) display cable to the corresponding video port of your computer. Do not use both cables on the same  
computer. Use both the cables only when they are connected to two different computers with appropriate video systems.  
 
Connecting the Blue VGA Cable  
Connecting the white DVI cable (optional)  
CAUTION: The graphics are used for the purpose of illustration only. Appearance on the computer may vary.  
Attaching Dell Soundbar AX510PA (optional)  
CAUTION: Do not use with any device other than the Dell soundbar.  
To attach the soundbar:  
1.  
2.  
3.  
4.  
Working from the back of the monitor, attach soundbar by aligning the two slots with the two tabs along the bottom of the monitor.  
Slide the soundbar to the left until it snaps into place.  
Connect the soundbar with the DC power connector from the soundbar Power Adaptor.  
Insert the mini stereo plug from the back of the soundbar into the computer's audio output jack.  
 
Operating the Monitor  
Dell™ IN1940MW Monitor User's Guide  
Power On the Monitor  
Press the  
button to turn on the monitor.  
Using the Front Panel Controls  
Use the control buttons on the front of the monitor to adjust the characteristics of the image being displayed. As you use these buttons to adjust the controls, an OSD shows the numeric  
values of the characteristics as they change.  
     
The following table describes the front panel buttons:  
Front Panel Button  
Description  
1
2
Use this button to choose from a list of preset color modes.  
Shortcut key/Preset modes  
Use this button to directly access the "Brightness/Contrast" menu.  
Shortcut  
key/Brightness/Contrast  
3
4
Use the MENU button to launch the On-Screen Display (OSD) and select the OSD Menu. See Accessing the Menu System.  
Use this button to go back to the main menu or exit the OSD main menu.  
Menu  
Exit  
Use the Power button to turn the monitor On and Off.  
5
The white LED indicates the monitor is On and fully functional. An amber LED indicates the power save mode.  
Power  
(with power light indicator)  
Front Panel Button  
Use the buttons on the front of the monitor to adjust the image settings.  
Front Panel Button  
Description  
1
Use the Up button to adjust (increase ranges) items in the OSD menu.  
Use the Down button to adjust (decrease ranges) items in the OSD menu.  
Use the OK button to confirm your selection.  
Up  
2
3
Down  
OK  
4
Use the Back button to go back to the previous menu.  
Back  
Using the On-Screen Display (OSD) Menu  
Accessing the Menu System  
NOTE: If you change the settings and then either proceed to another menu or exit the OSD menu, the monitor automatically saves those changes. The changes are also saved if you  
change the settings and then wait for the OSD menu to disappear.  
1. Press the  
button to launch the OSD menu and display the main menu.  
Main Menu for analog (VGA) input  
or  
Main Menu for digital (DVI) input  
   
NOTE: Auto Adjust is only available when you use the analog (VGA) connector.  
2.Press the  
and  
buttons to move between the setting options. As you move from one icon to another, the option name is highlighted. See the following table for a complete  
list of all the options available for the monitor.  
3. Press the  
button once to activate the highlighted option.  
4.Press  
and  
button to select the desired parameter.  
5. Press  
to enter the slide bar and then use the  
button to return to the main menu.  
and  
buttons, according to the indicators on the menu, to make your changes.  
6.Select the  
Icon  
Menu and Submenus  
Description  
Brightness/ Contrast  
Use this menu to activate Brightness/Contrast adjustment.  
Brightness  
Brightness adjusts the luminance of the backlight.  
Press the button to increase the brightness and press the  
button to decrease the brightness (min 0 / max 100).  
NOTE: Manual adjustment of Brightness is disabled when Energy Smart is switched On.  
Contrast  
Adjust the Brightness first, and then adjust the Contrast only if further adjustment is necessary.  
Press the  
button to increase the contrast and press the  
button to decrease the contrast (min 0 / max 100).  
The Contrast function adjusts the degree of difference between darkness and lightness on the monitor screen.  
Auto Adjust  
Even though your computer recognizes your monitor on startup, the Auto Adjustment function optimizes the display settings for use with  
your particular setup.  
Auto Adjustment allows the monitor to self-adjust to the incoming video signal. After using Auto Adjustment, you can further tune your  
monitor by using the Pixel Clock (Coarse) and Phase (Fine) controls under Display Settings.  
NOTE: In most cases, Auto Adjust produces the best image for your configuration.  
NOTE: Auto Adjust option is only available when you are using the analog (VGA) connector.  
Input Source  
Use the Input Source menu to select between the different video signals that may be connected to your monitor.  
 
Auto Select  
VGA  
Press  
to select Auto Select, the monitor auto detects either the VGA input or the DVI-D input.  
Select the VGA input when you are using the analog (VGA) connector. Press  
to select the VGA input source.  
to select the DVI input source.  
DVI-D  
Select the DVI-D input when you are using the Digital (DVI) connector. Press  
Color Settings  
Use Color Settings to adjust the color setting mode.  
Input Color Format  
Allows you to set the video input mode to:  
RGB: Select this option if your monitor is connected to a computer or DVD player using the VGA and DVI cable.  
YPbPr: Select this option if your monitor is connected to a DVD player by YPbPr to VGA, or YPbPr to DVI cable; or if the DVD color output  
setting is not RGB.  
Preset Modes  
When you select Preset Modes, you can choose Standard, Multimedia, Movie, Game, Text, Warm, Cool or Custom Color from the list.  
Standard: Loads the monitor's default color settings. This is the default preset mode.  
Multimedia: Loads color settings ideal for multimedia applications.  
Movie: Loads color settings ideal for movies.  
Game: Loads color settings ideal for most gaming applications.  
Text: Loads brightness and sharpness settings ideal for viewing texts.  
Warm: Increase the color temperature. The screen appears warmer with a red/yellow tint.  
Cool: Decreases the color temperature. The screen appears cooler with a blue tint.  
Custom Color: Allows you to manually adjust the color settings. Press the  
and  
buttons to adjust the three colors (R, G, B)  
values and create your own preset color mode.  
Hue  
This feature can shift the color of the video image to green or purple. This is used to adjust the desired flesh tone color. Use  
adjust the hue from '0' to '100'.  
or  
to  
Press  
Press  
to increase the green shade of the video image.  
to increase the purple shade of the video image.  
NOTE: Hue adjustment is available only when you select Movie or Game preset mode.  
This feature can adjust the color saturation of the video image. Use or to adjust the saturation from '0' to '100'.  
Saturation  
Press  
Press  
to increase the monochrome appearance of the video image.  
to increase the colorful appearance of the video image.  
NOTE: Saturation adjustment is available only when you select Movie or Game preset mode.  
Reset Color Settings  
Reset your monitor color settings to the factory settings.  
Display Settings  
Use the Display Settings to adjust image.  
Aspect Ratio  
Adjust the image ratio to Wide 16:10, 5:4 or 4:3.  
Horizontal Position  
Use  
Use  
or  
or  
to adjust the image left or right. Minimum is '0' (-). Maximum is '100' (+).  
to adjust the image up or down. Minimum is '0' (-). Maximum is '100' (+).  
Vertical Position  
NOTE: Horizontal Position and Vertical Position adjustments are only available for "VGA" input.  
Sharpness  
Pixel Clock  
This feature can make the image look sharper or softer. Use  
or  
to adjust the sharpness from '0' to '100'.  
The Phase and Pixel Clock adjustments allow you to adjust your monitor to your preference.  
Use  
or  
to adjust for best image quality.  
Phase  
If satisfactory results are not obtained using the Phase adjustment, use the Pixel Clock (coarse) adjustment and then use Phase (fine),  
again.  
NOTE: Pixel Clock and Phase adjustments are only available for "VGA" input.  
Reset Display Settings  
Other Settings  
Select this option to restore default display settings.  
Select this option to adjust the settings of the OSD, such as, the languages of the OSD, the amount of time the menu remains on screen, and  
so on.  
Language  
Language options set the OSD display to one of the eight languages (English, Spanish, French, German, Brazilian Portuguese, Russian,  
Simplified Chinese or Japanese).  
Menu Transparency  
Select this option to change the menu transparency by pressing the  
and  
buttons (Minimum: 0 ~ Maximum: 100).  
Menu Timer  
OSD Hold Time: sets the length of time the OSD will remain active after the last time you pressed a button.  
Use  
or  
to adjust the slider in 1 second increments, from 5 to 60 seconds.  
Menu Lock  
Controls user access to adjustments. When Lock is selected, no user adjustments are allowed. All buttons are locked.  
NOTE:  
Lock function – Either soft lock (through the OSD menu) or hard lock (press and hold the button above the power button for 10 seconds)  
Unlock function– Only hard unlock (press and hold the button above the power button for 10 seconds)  
Energy Smart  
DDC/CI  
To turn on or off dynamic dimming.  
The dynamic dimming feature automatically reduces the screen's brightness level when the displayed image contains a high proportion of  
bright areas.  
DDC/CI (Display Data Channel/Command Interface) allows your monitor parameters (brightness, color balance, and etc.) to be adjustable via  
the software on your computer. You can disable this feature by selecting "Disable".  
Enable this feature for best user experience and optimum performance of your monitor.  
LCD Conditioning  
Helps reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run. You can  
enable this feature by selecting "Enable".  
Factory Reset  
Personalize  
Reset all OSD settings to the factory preset values.  
Users can choose a feature from "Preset Modes", "Brightness/Contrast", "Auto Adjust", "Input Source", "Aspect Ratio" and set it as a shortcut  
key.  
NOTE: This monitor has a built-in feature to automatically calibrate the brightness to compensate for LED aging.  
OSD Warning Messages  
When the Energy Smart feature is enabled (in these preset modes: Game or Movie), the manual brightness adjustment is disabled.  
When the monitor does not support a particular resolution mode, you will see the following message:  
This means that the monitor cannot synchronize with the signal that it is receiving from the computer. See Monitor Specifications for the Horizontal and  
Vertical frequency ranges addressable by this monitor. Recommended mode is 1440 x 900.  
You will see the following message before the DDC/CI function is disabled:  
When the monitor enters the Power Save mode, the following message appears:  
Activate the computer and wake up the monitor to gain access to the OSD.  
If you press any button other than the power button, one of the following messages will appear depending on the selected input:  
VGA/DVI-D input  
If either VGA or DVI-D input is selected and both VGA and DVI-D cables are not connected, a floating dialog box as shown below appears.  
or  
See Solving Problems for more information.  
Setting the Maximum Resolution  
To set the maximum resolution for the monitor.  
Windows Vista® or Windows® 7:  
1. Right-click on the desktop and select Personalization.  
2. Click Change Display Settings.  
3. Move the slider-bar to the right by pressing and holding left-mouse button and adjust the screen resolution to 1440 x 900.  
4. Click OK.  
If you do not see 1440 x 900 as an option, you may need to update your graphics driver. Depending on your computer, complete one of the following procedures.  
If you have a Dell desktop or portable computer:  
Go to support.dell.com, enter your service tag, and download the latest driver for your graphics card.  
If you are using a non-Dell computer (portable or desktop):  
Go to the support site for your computer and download the latest graphic drivers.  
Go to your graphics card website and download the latest graphic drivers.  
 
Using Dell Soundbar  
The soundbar has an on/off power and rotary volume control to adjust the overall sound system, a LED for power indication and two audio headset jacks.  
1
2
3
4
Attach mechanism  
Power/Volume control  
Headphone jacks  
Power indicator  
 
Using the Tilt  
Tilt  
You can tilt the monitor for the most comfortable viewing angle.  
NOTE: The stand is detached when the monitor is shipped from the factory.  
 
Troubleshooting  
Dell™ IN1940MW Monitor User's Guide  
WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions.  
Self-Test  
Your monitor provides a self-test feature that allows you to check your monitor's functionality. To run the monitor self-test, perform the following steps:  
1. Turn off your computer and the monitor.  
2. Unplug the video cable from the back of the computer. To ensure proper self-test operation, remove the video cable (VGA or DVI-D) from the back of the computer.  
3. Turn on the monitor.  
4. A floating dialog box appears on the screen.  
NOTE: Depending on the selected input, one of the dialog boxes appears on the screen.  
NOTE: The dialog box also appears if the video cable is disconnected or damaged.  
NOTE: The power light on the monitor is solid white while in Self-Test. The monitor enters Power Save Mode after 5 minutes if left in the Self-Test mode.  
or  
5. Turn off your monitor and reconnect the appropriate video cable.  
6. Turn on your computer and the monitor.  
NOTE: If no video appears on your monitor after performing the self-test, there might be a problem with the graphics card. Contact your computer manufacturer for further assistance.  
   
Built-in Diagnostics  
Your monitor has a built-in diagnostic tool that helps you to determine if the screen abnormality you are experiencing is an inherent problem with your monitor, or with your computer and graphics card.  
To run the built-in diagnostics:  
1. Ensure that the screen is clean (no dust particles on the surface of the screen).  
2. Unplug the video cable(s) from the back of the computer or monitor. The monitor then goes into the self-test mode.  
3. Press and hold the Button 1 and Button 4 on the front panel, simultaneously for 2 seconds. A gray screen appears.  
4. Carefully inspect the screen for abnormalities.  
5. Press the Button 4 on the front panel again. The color of the screen changes to red.  
6. Inspect the display for any abnormalities.  
7. Repeat steps 5 and 6 to inspect the display in green, blue, black, white, and text screens.  
The test is complete when the white screen appears. To exit, press the Button 4 again.  
NOTE: If you do not detect any screen abnormalities during the built-in diagnostics, the monitor is functioning properly. There might be a problem with the graphics card. Contact your computer manufacturer for  
further assistance.  
Common Problems  
The following table contains general information about common monitor problems you might encounter.  
Common Symptoms  
What You Experience  
No picture  
Possible Solutions  
No Video/Power LED off  
Ensure that the video cable connecting the monitor and the computer is properly connected  
and secure.  
Verify that the power outlet is functioning properly using any other electrical equipment.  
Ensure that the power button is depressed fully.  
No Video/Power LED on  
No picture or no brightness  
Increase brightness & contrast controls via OSD.  
Perform monitor self-test feature check.  
Check for bent or broken pins in the video cable connector.  
Touch button 5 located above the power button, ensure that the correct input source is  
selected via the Input Source Select menu.  
Run the built-in diagnostics.  
Poor Focus  
Picture is fuzzy, blurry, or ghosting  
Wavy picture or fine movement  
Perform Auto Adjust via OSD.  
Adjust the Phase and Pixel Clock controls via OSD.  
Eliminate video extension cables.  
Reset the monitor to Factory Settings.  
Change the video resolution to the correct aspect ratio (16:10).  
Shaky/Jittery Video  
Perform Auto Adjust via OSD.  
 
Adjust the Phase and Pixel Clock controls via OSD.  
Reset the monitor to Factory Settings.  
Check environmental factors.  
Relocate the monitor and test in another room.  
Missing Pixels  
LCD screen has spots  
Cycle power on-off.  
Pixel that is permanently off is a natural defect that can occur in LCD technology.  
For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:  
support.dell.com.  
Stuck-on Pixels  
LCD screen has bright spots  
Cycle power on-off.  
Pixel that is permanently off is a natural defect that can occur in LCD technology.  
For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at:  
support.dell.com.  
Brightness Problems  
Geometric Distortion  
Picture too dim or too bright  
Screen not centered correctly  
Reset the monitor to Factory Settings.  
Auto Adjust via OSD.  
Adjust brightness & contrast controls via OSD.  
Reset the monitor to Factory Settings.  
Auto Adjust via OSD.  
Adjust brightness & contrast controls via OSD.  
NOTE: When using 'DVI-D', the positioning adjustments are not available.  
Horizontal/Vertical Lines  
Synchronization Problems  
Screen has one or more lines  
Reset the monitor to Factory Settings.  
Perform Auto Adjust via OSD.  
Adjust Phase and Pixel Clock controls via OSD.  
Perform monitor self-test feature check and determine if these lines are also in self-test mode.  
Check for bent or broken pins in the video cable connector.  
NOTE: When using 'DVI-D', the Pixel Clock and Phase adjustments are not available.  
Screen is scrambled or appears torn  
Reset the monitor to Factory Settings.  
Perform Auto Adjust via OSD.  
Adjust Phase and Pixel Clock controls via OSD.  
Perform monitor self-test feature check to determine if scrambled screen appears in self-test  
mode.  
Check for bent or broken pins in the video cable connector.  
Restart the computer in the safe mode.  
Safety Related Issues  
Intermittent Problems  
Visible signs of smoke or sparks  
Monitor malfunctions on & off  
Do not perform any troubleshooting steps.  
Contact Dell immediately.  
Ensure that the video cable connecting the monitor to the computer is connected properly and  
is secure.  
Reset the monitor to Factory Settings.  
Perform monitor self-test feature check to determine if the intermittent problem occurs in self-  
test mode.  
Missing Color  
Wrong Color  
Picture missing color  
Picture color not good  
Perform monitor self-test feature check.  
Ensure that the video cable connecting the monitor to the computer is connected properly and  
is secure.  
Check for bent or broken pins in the video cable connector.  
Change the Color Setting Mode in the Color Settings OSD to Graphics or Video depending to  
the application.  
Try different Color Preset Settings in Color Settings OSD. Adjust R/G/B value in Color Settings  
OSD if the Color Management is turned off.  
Change the Input Color Format to PC RGB or YPbPr in the Advance Setting OSD.  
Image retention from a static  
image left on the monitor for a  
Faint shadow from the static image  
displayed appears on the screen  
Use the Power Management feature to turn off the monitor at all times when not in use (for  
more information, see Power Management Modes).  
long period of time  
Alternatively, use a dynamically changing screensaver.  
Product Specific Problems  
Specific Symptoms  
What You Experience  
Possible Solutions  
Screen image is too small  
Image is centered on screen, but does not  
fill entire viewing area  
Reset the monitor to Factory Settings.  
Cannot adjust the monitor with the buttonsOSD does not appear on the screen  
on the front panel  
Turn off the monitor, unplug the power cord, plug back, and then turn on the monitor.  
The picture does not fill the entire screen. The picture cannot fill the height or width  
of the screen  
Due to different video formats (aspect ratio) of DVDs, the monitor may display in full screen.  
Run the built-in diagnostics.  
NOTE: When choosing DVI-D mode, the Auto Adjust function is not available.  
Dell™ Soundbar Problems  
Common Symptoms  
What You Experience  
Possible Solutions  
No sound for system where the Soundbar No power to Soundbar - the power  
Turn the Power/Volume knob on the Soundbar clockwise to the middle position; check if the power indicator (white LED) on  
the front of the Soundbar is illuminated.  
Confirm that the power cable from the Soundbar is plugged into the adapter.  
draws power from an AC adapter  
No Sound  
indicator is off  
Soundbar has power - power indicator is  
on  
Plug the audio line-in cable into the computer's audio out jack.  
Set all volume controls to their maximum and ensure that the mute option is not enabled.  
Play some audio content on the computer (example, audio CD, or MP3).  
Turn the Power/Volume knob on the Soundbar clockwise to a higher volume setting.  
Clean and reseat the audio line-in plug.  
Test the Soundbar using another audio source (For example: portable CD player, MP3 player).  
Distorted Sound  
Computer's sound card is used as the  
audio source  
Clear any obstructions between the Soundbar and the user.  
Confirm that the audio line-in plug is completely inserted into the jack of the sound card.  
Set all Windows volume controls to their midpoints.  
Decrease the volume of the audio application.  
Turn the Power/Volume knob on the Soundbar counter-clockwise to a lower volume setting.  
Clean and reseat the audio line-in plug.  
Troubleshoot the computer's sound card.  
Test the Soundbar using another audio source (For example: portable CD player, MP3 player).  
Avoid using an audio cable extension or audio jack converter.  
Distorted Sound  
Other audio source is used  
Clear any obstructions between the Soundbar and the user.  
Confirm that the audio line-in plug is completely inserted into the jack of the audio source.  
Decrease the volume of the audio source.  
Turn the Power/Volume knob on the Soundbar counter-clockwise to a lower volume setting.  
Clean and reseat the audio line-in plug.  
Unbalanced Sound Output  
Sound from only one side of Soundbar  
Clear any obstructions between the Soundbar and the user.  
Confirm that the audio line-in plug is completely inserted into the jack of the sound card or audio source.  
Set all Windows audio balance controls (L-R) to their midpoints.  
Clean and reseat the audio line-in plug.  
Troubleshoot the computer's sound card.  
Test the Soundbar using another audio source (For example: portable CD player, MP3 player).  
Low Volume  
Volume is too low  
Clear any obstructions between the Soundbar and the user.  
Turn the Power/Volume knob on the Soundbar clockwise to the maximum volume setting.  
Set all Windows volume controls to their maximum.  
Increase the volume of the audio application.  
Test the Soundbar using another audio source (For example: portable CD player, MP3 player)  
   
Appendix  
Dell™ IN1940MW Monitor User's Guide  
WARNING: Safety Instructions  
WARNING: Use of controls, adjustments, or procedures other than those specified in this documentation may result in exposure to shock,  
electrical hazards, and/or mechanical hazards.  
For information on safety instructions, see the Product Information Guide.  
FCC Notices (U.S. Only) and Other Regulatory Information  
For FCC notices and other regulatory information, see the regulatory compliance website located at www.dell.com\regulatory_compliance.  
Contacting Dell  
Customers in the United States can call 800-WWW-DELL (800-999-3355).  
NOTE: If you do not have an active Internet connection, you can find contact information on your purchase invoice, packing slip, bill, or  
Dell product catalog.  
Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not  
be available in your area. To contact Dell for sales, technical support, or customer service issues:  
1. Visit support.dell.com.  
2. Verify your country or region in the Choose A Country/Region drop-down menu at the bottom of the page.  
3. Click Contact Us on the left side of the page.  
4. Select the appropriate service or support link based on your need.  
5. Choose the method of contacting Dell that is convenient for you.  
       
Setting Up Your Monitor  
Dell™ IN1940MW Monitor User's Guide  
Setting the display resolution to 1440 x 900 (maximum)  
®
For optimal display performance while using the Microsoft Windows operating systems, set the display resolution to 1440 x 900 pixels by performing the following  
steps:  
®
®
In Windows Vista or Windows 7:  
1. Right-click on the desktop and click Personalization.  
2. Click Change Display Settings.  
3. Move the slider-bar to the right by pressing and holding the left-mouse button and adjust the screen resolution to 1440 x 900.  
4. Click OK.  
If you do not see 1440 x 900 as an option, you may need to update your graphics driver. Choose the scenario below that best describes the computer system you  
are using, and follow the provided directions:  
 
Setting Up Your Monitor  
Dell™ IN1940MW Monitor User's Guide  
If you have a Dell™ desktop or a Dell™ portable computer with internet access  
1. Go to http://support.dell.com, enter your service tag, and download the latest driver for your graphics card.  
2. After installing the drivers for your Graphics Adapter, attempt to set the resolution to 1440 x 900 again.  
NOTE: If you are unable to set the resolution to 1440 x 900, contact Dell™ to inquire about a Graphics Adapter that supports these resolutions.  
 
Setting Up Your Monitor  
Dell™ IN1940MW Monitor User's Guide  
If you have a non Dell™ desktop, portable computer, or graphics card  
®
In Windows Vista or Windows 7:  
1. Right-click on the desktop and click Personalization.  
2. Click Change Display Settings.  
3. Click Advanced Settings.  
4. Identify your graphics controller supplier from the description at the top of the window (e.g. NVIDIA, ATI, Intel etc.).  
5. Please refer to the graphics card provider website for updated driver (for example, http://www.ATI.com OR http://www.NVIDIA.com ).  
6. After installing the drivers for your Graphics Adapter, attempt to set the resolution to 1440 x 900 again.  
NOTE: If you are unable to set the resolution to 1440 x 900, please contact the manufacturer of your computer or consider purchasing a graphics adapter that  
will support the video resolution of 1440 x 900.  
 

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