Dell ST2420L Bedienungsanleitung
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.
© 2010-2013 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 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.
© 2010-2013 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 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
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
Pin
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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