Dell ST2420L Manuale utente

Dell™ ST2420L/ST2421L monitor

User Guide

Important instructions to set the display resolution to 1920x1080 (Maximum)

Information in this document is subject to change without notice.

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 trademarks of Dell Inc. Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in

the United States and/or other countries.

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.

ST2420Lb/ST2421Lb

September 2013 Rev. A05

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 document is subject to change without notice.

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 trademarks of Dell Inc. Microsoft and Windows are either trademarks or registered trademarks of Microsoft Corporation in the

United States and/or other countries.

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.

ST2420Lb/ST2421Lb

September 2013 Rev. A05

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 with your Monitor. Some features or media may not be available in certain countries.

Monitor with Stand

Power Cable

DVI Cable (optional)

VGA Cable

Safety Information

Drivers and Documentation media

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 Display (OSD) adjustments for ease of set-up and screen optimization.

■Software and documentation CD which includes an information file (INF), Image Color Matching File (ICM), and product documentation.

■Security lock slot.

Identifying Parts and Controls

Front View

Front View Front Panel Controls

Label Description

1-2 Shortcut keys

*The default settings are Preset Modes and Brightness/Contrast.

1Shortcut key: Preset Modes (Default)

2Shortcut key: Brightness/Contrast (Default)

3OSD menu select

4EXIT

5Power On/Off (light indicator below Dell logo)

Back View

Label Description/Use

1Barcode serial number label To contact Dell for technical support.

2Security lock slot To help secure your monitor.

3Dell Soundbar mounting brackets To attach the optional Dell Soundbar.

4Regulatory rating label Lists the regulatory approvals.

5Stand release button To release stand assembly from monitor.

Side View

Left Side

Bottom View

Bottom view

Label Description

1AC power cord connector

2DVI connector

3HDMI connector

4VGA connector

5Audio Line-in

6Audio Line out

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 automatically "wake up". The following

table shows the power consumption and signaling of this automatic power-saving feature:

ST2420L/ST2421L

VESA Modes Horizontal

Sync Vertical Sync Video Power

Indicator Power Consumption

Normal operation Active Active Active White 30 W (maximum)

20 W (typical)

Active-off mode Inactive Inactive Blanked Amber Less than 1 W

Switch off - - - Off Less than 0.5 W

NOTE: Zero power consumption in OFF mode can only be achieved by disconnecting the main cable from the

monitor.

Pin Assignments

VGA Connector

Pin Number 15-pin Side of the Connected Signal

Cable

1Video-Red

2 Video-Green

3 Video-Blue

4 GND

5 Self-test

6 GND-R

7 GND-G

8 GND-B

9Computer 5V/3.3V

10 GND-sync

11 GND

12 DDC data

13 H-sync

14 V-sync

15 DDC clock

DVI Connector

Number 24-pin Side of the Connected Signal

Cable

1TMDS RX2-

2TMDS RX2+

3TMDS Ground

4 Floating

5 Floating

6DDC Clock

7DDC Data

8 Floating

9TMDS 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

20 Floating

21 Floating

22 TMDS Ground

23 TMDS Clock+

24 TMDS Clock-

HDMI Connector

Pin Number 19-pin Side of the Connected Signal Cable

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