Instruction/ maintenance manual of the product ST2421L Dell
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Dell™ST2420L/ST2421LmonitorUser'sGuide Notes, Notices, and Cautions Information in this document is subject to change without notice. © 2010Dell™Inc.Allrightsreserved. Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.
Back to Contents Page AboutYourMonitor Dell™ST2420L/ST2421LmonitorUser'sGuide Package Contents Product Features Identifying Parts and Control.
Product Features The ST2420L/ST2421L flat panel display has an active matrix, Thin - Film Transistor (TFT), and Liquid Crystal Display (LCD). The monitor features include: ■ ST2420L/ST2421L: 60.97cm (24 inches) viewable area display. ■ 1920 x 1080 resolution, plus full - screen support for lower resolutions.
Side View Bottom View BackView Label Description/Use 1 Barcode serial number label To contact Dell for technical support.
Monitor Specifications Power Management Modes IfyouhaveVESA'sDPMS™compliancedisplaycardorsoftwareinstalledinyourPC,themonitorcanautomaticallyreduceitspowerconsumptionwhennotin use.
DVIConnector 1 Video - Red 2 Video - Green 3 Video - Blue 4 GND 5 Self - test 6 GND -R 7 GND -G 8 GND -B 9 Computer 5V/3.3V 10 GND - sync 11 GND 12 DDC data 13 H- sync 14 V- sync 15 DDC.
HDMI Connector Flat Panel Specifications * Based on estimation ** ST2420L/ST2421L Color Gamut (Typical) is based on CIE1976 (81 %) and CIE1931 (68 %).
Resolution Video Supported Modes Preset Display Modes ST2420L/ST2421L Electrical Physical Characteristics Model ST2420L/ST2421L Horizontal scan range 30 kHz to 83 kHz (automatic) Verti.
Environmental Plug and Play Capability You can install the monitor in any Plug and Play - compatible system. The monitor automatically provides the computer system with its Extended Display Identification Data (EDID) using Display Data Channel (DDC) protocols so that the system can configure itself and optimize the monitor settings.
Caring for Your Monitor Fo r best practices, follow the instructions in the list below while unpacking, cleaning, or handling your monitor: l To clean your antistatic screen, lightly dampen a soft, clean cloth with water. If possible, use a special screen - cleaning tissue or solution suitable for the antistatic coating.
Back to Contents Page Appendix Dell™ST2420L/ST2421LmonitorUser'sGuide Safety Instructions FCC Notice (U.S. Only) and Other Regulatory Information Contacting Dell CAUTION: Safety Instructions For information on safety instructions, see the Safety Information that ships with your monitor.
Back to Contents Page Setting Up Your Monitor Dell™ST2420L/ST2421Lmonitor IfyouhaveaDell™ desktoporaDell™ portable computer with internet access 1. Go to http://support.dell.com , enteryourservicetag,anddownloadthelatestdriverforyourgraphicscard.
Back to Contents Page Setting Up Your Monitor Dell™ST2420L/ST2421Lmonitor IfyouhaveanonDell™desktop,portablecomputer,orgraphicscard In Windows XP: 1. Right - click on the desktop and click Properties .
Back to Contents Page Operating the Monitor Dell™ST2420L/ST2421LmonitorUser'sGuide Using the Front Panel Controls Using the On - Screen Display (OSD) Menu S.
Or Main Menu for non Analog (non VGA) Input NOTE: Auto Adjust is only available when you are using the analog (VGA) connector. 2.Pressthe and buttons to move between the setting options. As you move from one icon to another, the option name is highlighted.
Brightness Contrast Back Brightness adjusts the luminance of the backlight. Press the buttontoincreasethebrightnessand Press the button to decrease the brightness (min 0 ~ max 100). Adjust the Brightness first, and then adjust the Contrast only if further adjustment is necessary.
VGA DVI - D HDMI Back Select VGA input when you are using the analog (VGA) connector. Push to select the VGA input source. Select DVI - D input when you are using the Digital (DVI) connector. Push to select the DVI input source. Select HDMI input when you are using the HDMI connector.
Movie Game Sports Nature Hue Saturation Demo Mode Reset Color Settings Back Mode suitable for movie playback. Mode suitable for game applications. Mode suitable for sports scenes. Mode suitable for nature scenes. This feature can make the video image color shift from green to purple.
Wide Mode Horizontal Position Vertical Position Sharpness Pixel Clock Phase Dynamic Contrast Reset Display Setting Back Adjusts the image ratio as 4:3 or full screen. NOTE: Wide Mode adjustment is not required at maximum preset resolution 1920 x 1080.
Line Out Source PowerSave Audio Reset Audio Settings Back Selectthesourceoftheaudio Turns the Audio Power on or off during power save mode. Resets the audio settings to the original factory settings. Push togobacktoorexitthemainmenu.
LCD Conditioning Factory Reset Back If an image appears to be retained on the monitor, select LCD Conditioning to help eliminate any image retention. Using the LCD Conditioning feature may take several hours. Severe cases of image retention are known as burn does not remove burn - in.
OSD Warning Messages When the monitor does not support a particular resolution mode you will see the following message : or This means that the monitor cannot synchronize with the signal that it is receiving from the computer.
See Solving Problems for more information. Setting the Maximum Resolution To set the maximum resolution for the monitor. Windows XP: 1. Right - click on the desktop and select Properties . 2. Select the Settings tab.
Using the Tilt Tilt With the built - in pedestal, you can tilt the monitor for the most comfortable viewing angle. Back to Contents Page 1. Attach mechanism 2. Headphone connectors 3. Power indicator 4. Power/Volume control NOTE: The stand riser and stand base are detached when the monitor is shipped from the factory.
Back to Contents Page Setting Up Your Monitor Dell™ST2420L/ST2421Lmonitor Important instructions to set the display resolution to 1920x1080 (Maximum) For optimal display performance whi.
Dell™ST2420L/ST2421Lmonitor Information in this document is subject to change without notice. © 2010 Dell™Inc.Allrightsreserved. Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.
Back to Contents Page Setting Up the Monitor Dell™ST2420L/ST2421LmonitorUser'sGuide Attaching the Base Connecting the Monitor Attaching the Soundbar (Optional) Removing the Monitor Stand Attaching the Base 1.
Connecting the Monitor To connect your monitor to the computer perform the following steps/instructions: 1. Turnoffyourcomputeranddisconnectthepowercable. 2. Connect the HDMI cable, white (digital DVI - D), or blue (analog VGA) display connector cable to the corresponding video port on the back of your computer.
2. Turn on the monitor and the computer. If your monitor displays an image, installation is complete. If it does not display an image, see Solving Problems . Attaching the Soundbar (Optional) Removing the Monitor Stand After placing the monitor panel on a soft cloth or cushion, complete the following steps to remove the base.
Back to Contents Page Solving Problems Dell™ST2420L/ST2421LmonitorUser'sGuide Self - Test Built - in Diagnostics Common Problems Product - Specifi.
4. Carefully inspect the screen for abnormalities. 5. Press the shortcut button 4 key 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, and white colored screens.
Product - Specific Problems TroubleshootingtheDell™Soundbar(Optional) l Adjust Phase and Pixel Clock controls via OSD. l Perform monitor self - test feature check and determine if these lines are also in self - test mode. l Check for bent or broken pins in the video cable connector.
Back to Contents Page l Turn the volume down. l Clean and reseat the audio line - in plug. l Troubleshoot the computer's sound card. l Test the Soundbar using another audio source (i.e., portable CD player). Distorted Sound Other audio source is used.
An important point after buying a device Dell ST2421L (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Dell ST2421L yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Dell ST2421L - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Dell ST2421L you will learn all the available features of the product, as well as information on its operation. The information that you get Dell ST2421L will certainly help you make a decision on the purchase.
If you already are a holder of Dell ST2421L, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Dell ST2421L.
However, one of the most important roles played by the user manual is to help in solving problems with Dell ST2421L. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Dell ST2421L along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
