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Dell™ ST2420L/ST2421L monitor User's Guide
About Your Monitor
Setting Up the Monitor
Operating the Monitor
Solving Problems
Appendix
Notes, Notices, and Cautions
NOTE: A NOTE indicates important information that helps you make better use of your computer.
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.
Information in this docu
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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 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 wi
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l Safety Information l Drivers and Documentation media l Quick Setup Guide 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. ■ Plug and play capability if supported by your system. ■ On-Screen D
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Back View Label Description/Use 1 Barcode serial number label To contact Dell for technical support. 2 Security lock slot To help secure your monitor. 3 Dell Soundbar mounting brackets To attach the optional Dell Soundbar. 4 Regulatory rating label Lists the regulatory approvals. 5 Stand release button To release stand assembly from monitor. Side View Left Side Bottom View
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Bottom view Label Description AC power cord connector 1 DVI connector 2 HDMI connector 3 VGA connector 4 Audio Line-in 5 Audio Line out 6 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 input devices is detected by the computer, the monitor will automa
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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 DVI Connector Pin 24-pin Side of the Connected Signal Number Cable 1 TMDS RX2- 2 TMDS RX2+ 3 TMDS Ground 4 Floating 5 Floating 6 DDC Clock 7 DDC Data 8 Floating 9 TMDS RX1- 10 TMDS RX1+ 11 TMDS Ground 12 Floating 13 Floating 14 +5V power 15 Self test 16 Hot Plug Detect 17 TMDS RX0- 18 TMDS RX0+ 19 TMDS Ground 2
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HDMI Connector 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 9 TMDS DATA 0- 10 TMDS CLOCK 11 TMDS CLOCK SHIELD 12 TMDS CLOCK- 13 CEC 14 Reserved (N.C. on device) 15 DDC CLOCK (SCL) 16 DDC DATA (SDA) 17 DDC/CEC Ground 18 +5V POWER 19 HOT PLUG DETECT Flat Panel Specifications Model ST2420L/ST2421L Screen type Active matrix - TFT LCD Panel type TN
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Resolution 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 Video Supported Modes Model ST2420L/ST2421L Video display capabilities (HDMI playback) 480i/480p/576i/576p/720p/1080i/1080p Preset Display Modes ST2420L/ST2421L Display Mode Horizontal Frequency Vertical Frequency Pixel Clock Sync Polarity (Horizontal/Vertical) (kHz) (Hz) (MHz) VGA, 720 x 400 31.469 70.087
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Dimensions (with stand) Height 418.24 mm (16.47 inches) Width 574.96 mm (22.64 inches) 203.68 mm (8.02 inches) Depth Dimensions (without stand) Height 356.43 mm (14.03 inches) Width 574.96 mm (22.64 inches) Depth 59.72 mm (2.35 inches) Stand dimensions Height 149.85 mm ( 5.90 inches) Width 203.68 mm (8.02 inches) Depth 203.68 mm (8.02 inches) Weight Weight with packaging 5.75 kg (12.68 lb) Weight with stand assembly and 4.29 kg (9.46 lb) cables Weight without stand assembly (for wall mount o
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Caring for Your Monitor CAUTION: Read and follow the Safety Instructions before cleaning the monitor. CAUTION: Before cleaning the monitor, unplug the monitor from the electrical outlet. For 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 n
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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 CAUTION: 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 Safety Information that ships with your monitor. FCC
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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 the drivers for your Graphics Adapter, attempt to set the resolution to 1920x1080 again. NOTE: If you are unable to set the resolution to 1920x1080 , please contact Dell™ to inquire about a Graphics Ada
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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 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
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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 side 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 characteristic
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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 available for the monitor. 3. Press the button once to activate the highlighted option. 4. Press the and buttons to select the desired parameter. 5. Press th
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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). Contrast Adjust the Brightness first, and then adjust the Contrast only if further adjustment is necessary. Press the button to increase contrast and press the button to decrease contrast (min 0 ~ max 100). The Contrast function adjusts the degree of difference between the darkest and lightest are
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VGA Select VGA input when you are using the analog (VGA) connector. Push to select the VGA input source. DVI-D 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. HDMI Push the button to go back to or exit the main menu. Back Color Settings Use the color settings to adjust the Image mode and color format. Input Color Format Allows
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Movie Mode suitable for movie playback. Game Mode suitable for game applications. Sports Mode suitable for sports scenes. Nature Mode suitable for nature scenes. Hue 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 hue in the image increases the purple hue in the image NOTE: Hue adjustment is only available for video input. Saturation Allows you to adjust the color saturation of the video image.
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Wide Mode Adjusts the image ratio as 4:3 or full screen. NOTE: Wide Mode adjustment is not required at maximum preset resolution 1920 x 1080. Horizontal Position Use the and buttons to adjust image left and right. Minimum is '0' (-). Maximum is '100' (+). Vertical Position Use the and buttons to adjust image up and down. Minimum is '0' (-). Maximum is '100' (+). Sharpness This feature can make the image look sharper or softer. Use or to adjust the sharpness from '0'
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Line Out Source Select the source of the audio Turns the Audio Power on or off during power save mode. Power Save Audio Resets the audio settings to the original factory settings. Reset Audio Settings Back Push to go back to or exit the main menu. Other Settings Language Language option to set the OSD display to one of 6 languages (English, Espanol, Francais, Deutsch, Simplified Chinese, Japanese). Menu Transparency Allows you to adjust the OSD background from opaque to tra
