Dell ST2421LB User Manual

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.
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theUnitedStatesand/orothercountries;ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Inc. has
determined that this product meets the ENERGY STAR guidelines for energy efficiency.
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
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ST2420Lb/ST2421Lb
August2010Rev.A00


About Your Monitor
Setting Up the Monitor
Operating the Monitor
Solving Problems
Appendix
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.

Dell ST2421LB Specifications

General

Brand	Dell
Model	ST2421LB
Category	Monitor
Language	English

Summary

Notes, Notices, and Cautions

Monitor Usage Guidance

Provides definitions for IMPORTANT NOTES, NOTICES about hardware/data damage, and CAUTIONS for personal safety.

About Your Monitor

Package Contents

Lists the components included with the monitor, advising to check for completeness and contact Dell if missing.

Product Features

Highlights key features of the ST2420L/ST2421L monitor, including its display technology and capabilities.

Identifying Parts and Features

Visually identifies and labels the various parts and controls on the front and back of the monitor.

Monitor Specifications and Guidelines

Details technical specs (power, panel, resolution, electrical, physical, environmental), plug-and-play, pixel policy, and maintenance.

Caring for Your Monitor

Provides instructions for safely cleaning and maintaining the monitor's screen and body.

Setting Up Your Monitor

Connecting the Monitor

Guides users on how to connect the monitor to a computer using VGA, DVI, or HDMI cables.

Attaching the Base

Provides step-by-step instructions for assembling the monitor stand and attaching it to the display.

Setting the Maximum Resolution

Instructions for setting the optimal display resolution to 1920x1080 on Windows systems.

Using the Dell Soundbar (Optional)

Details the installation and features of the optional Dell Soundbar accessory for the monitor.

Using the Tilt Feature

Provides information on adjusting the monitor's tilt for an optimal viewing angle.

Operating the Monitor

Front Panel Controls Overview

Explains the function of each button on the monitor's front panel for adjustments.

On-Screen Display (OSD) Menu Navigation

Guides users through navigating and adjusting monitor settings using the OSD menu.

OSD Menu Settings

Covers adjustments for brightness, contrast, input source, color, display, audio, and other settings.

OSD Warning Messages

Describes common warning messages displayed on the monitor and their meanings.

Solving Problems

Self-Test and Built-in Diagnostics

Guides users on performing self-tests and built-in diagnostics to troubleshoot monitor issues.

Common and Product-Specific Problems

Lists common symptoms like no video, poor focus, or missing pixels with their possible solutions.

Troubleshooting the Dell Soundbar (Optional)

Provides solutions for common soundbar issues like no sound or distorted audio.

Appendix

Safety Instructions

References safety information included with the monitor for safe operation and handling.

FCC Notice and Regulatory Information

Provides FCC notices for US users and directs to the regulatory compliance website.

Contacting Dell Support

Offers methods for contacting Dell support for assistance, including phone and website options.