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Dell ST2421LB manual

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Table of contents for the manual

  • Page 1

    Dell™ST2420L/ST2421LmonitorUser'sGuide Notes, Notices, and Cautions Information in this document is subject to change without notice. © 2010Dell™Inc.Allrightsreserved. Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in[...]

  • Page 2

    Back to Contents Page  AboutYourMonitor Dell™ST2420L/ST2421LmonitorUser'sGuide  Package Contents  Product Features  Identifying Parts and Controls  Monitor Specifications  Plug and Play Capability  LCD Monitor Quality & Pixel Policy  Maintenance Guidelines Package Co[...]

  • Page 3

     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. ■ Tilt adjustment capability. [...]

  • Page 4

      Side View Bottom View  BackView Label Description/Use 1 Barcode serial number label To contact Dell for technical support. 2 Securit[...]

  • Page 5

     Monitor Specifications Power Management Modes IfyouhaveVESA'sDPMS™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 input from a keyboard, mouse or other in[...]

  • Page 6

    DVIConnector 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 clock Pin Number 24 - pin Side of th e C o nnected Signal Cable 1 TMDS RX2 - 2 TMDS RX2+ 3 TMDS Ground 4 Floating 5 Floating 6 DDC Clock 7 DDC Data 8[...]

  • Page 7

    HDMI Connector  Flat Panel Specifications * Based on estimation ** ST2420L/ST2421L Color Gamut (Typical) is based on CIE1976 (81 %) and CIE1931 (68 %). Pin Number 19 - pin Side of the Connected Signal Cable 1 TMDS DATA 2+ 2 TMDS DATA 2 SHIELD 3 TMDS DATA 2 - 4 TMDS DATA 1+ 5 TMDS DATA 1 SHIELD 6 TMDS DATA 1 - 7 TMDS DATA 0+ 8 TMDS DATA 0 SHIELD [...]

  • Page 8

    Resolution  Video Supported Modes  Preset Display Modes ST2420L/ST2421L  Electrical  Physical Characteristics Model ST2420L/ST2421L Horizontal scan range 30 kHz to 83 kHz (automatic) Vertical scan range 56Hzto76Hz(automatic) Maximum preset resolution 1920 x 1080 at 60 Hz Model ST2420L/ST2421L Video display capabilities (H[...]

  • Page 9

     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. If requ[...]

  • Page 10

    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. Do not use benzene, thinner[...]

  • Page 11

    Back to Contents Page  Appendix Dell™ST2420L/ST2421LmonitorUser'sGuide  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. FCC Notice [...]

  • Page 12

    Back to Contents Page  Setting Up Your Monitor Dell™ST2420L/ST2421Lmonitor 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 t[...]

  • Page 13

    Back to Contents Page  Setting Up Your Monitor Dell™ST2420L/ST2421Lmonitor IfyouhaveanonDell™desktop,portablecomputer,orgraphicscard In Windows XP: 1. Right - click on the desktop and click Properties . 2. Select the Settings tab. 3. Select Advanced . 4. Identify your graphics controller supplier fro[...]

  • Page 14

    Back to Contents Page  Operating the Monitor Dell™ST2420L/ST2421LmonitorUser'sGuide  Using the Front Panel Controls  Using the On - Screen Display (OSD) Menu  Setting the Maximum Resolution  Using the Dell Soundbar (Optional)  Using the Tilt  Using the Front Panel Use the control buttons on the[...]

  • Page 15

    Or Main Menu for non Analog (non VGA) Input    NOTE: Auto Adjust is only available when you are using 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 table foracompletelistofalltheoptionsava[...]

  • Page 16

             Brightness Contrast Back 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). Adjust the Brightness first, and then adjust the Contrast only if further adjustment is necessary. Press the[...]

  • Page 17

      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. Push to select the HDMI input source. Push the button ?[...]

  • Page 18

    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. Use this feature to adjust the skin tone. Use increases the green[...]

  • Page 19

          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. Use the and buttons to adjust image left and right. Minimum is &apos[...]

  • Page 20

      Line Out Source PowerSave Audio Reset Audio Settings Back Selectthesourceoftheaudio Turns the Audio Power on or off during power save mode. Resets the audio settings to the original factory settings. Push togobacktoorexitthemainmenu.    Other Settings  Language Menu [...]

  • Page 21

     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. ResetallOSDsettingstothefactorydefault?[...]

  • Page 22

     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 Monitor Specifications fortheHorizontalandVerticalfrequencyrangesaddressablebythis[...]

  • Page 23

            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. 3. Set the screen resolution to 1920 x 1080. 4. Click OK . Windows Vista ® or Windows ® 7: 1[...]

  • Page 24

    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.[...]

  • Page 25

    Back to Contents Page  Setting Up Your Monitor Dell™ST2420L/ST2421Lmonitor Important instructions to set the display resolution to 1920x1080 (Maximum) For optimal display performance while using the Microsoft Windows ® operating systems, set the display resolution to 1920 x 1080 pixels by performing the following steps: In Windows XP[...]

  • Page 26

    Dell™ST2420L/ST2421Lmonitor   Information in this document is subject to change without notice. © 2010 Dell™Inc.Allrightsreserved. Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell and the DELL logo, are[...]

  • Page 27

    Back to Contents Page  Setting Up the Monitor Dell™ST2420L/ST2421LmonitorUser'sGuide  Attaching the Base  Connecting the Monitor  Attaching the Soundbar (Optional)  Removing the Monitor Stand  Attaching the Base  1. Assemble the stand riser to stand base. a. Place the stand riser on top of the sta[...]

  • Page 28

     Connecting the Monitor To connect your monitor to the computer perform the following steps/instructions: 1. Turnoffyourcomputeranddisconnectthepowercable. 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.Don[...]

  • Page 29

    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. 1. Use a long screwdri[...]

  • Page 30

    Back to Contents Page  Solving Problems Dell™ST2420L/ST2421LmonitorUser'sGuide  Self - Test  Built - in Diagnostics  Common Problems  Product - Specific Problems  TroubleshootingtheDell™Soundbar(Optional)    Self - Test Your monitor provides a self - test feature that [...]

  • Page 31

    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. The test is complete when the white screen appears. To exit, p[...]

  • Page 32

     Product - Specific Problems  TroubleshootingtheDell™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. l Run the built - in diagnostics. Synchroniz[...]

  • Page 33

      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. l Clear any obstructions between the Soundbar and the user. l Confirm that the audio [...]