Dell S2421HGF Manuel utilisateur

Dell S2421HGF Monitor

User’s Guide

Model: S2421HGF

Regulatory model: S2421HGFb

NOTE: A NOTE indicates important information that helps you make

better use of your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss

of data if instructions are not followed.

WARNING: A WARNING indicates a potential for property damage,

personal injury, or death.

are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective

owners.

2020 - 05

Rev. A01

│  3

Contents

Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 5

About your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Identifying parts and controls . . . . . . . . . . . . . . . . . . . . . . 9

Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Side view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Resolution specifications. . . . . . . . . . . . . . . . . . . . . . . . . 13

Supported video modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Preset display modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Environmental characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Power management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

LCD monitor quality and pixel policy . . . . . . . . . . . . . . . . 19

Ergonomics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Handling and moving your display . . . . . . . . . . . . . . . . . . 22

Maintenance guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Cleaning your monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Setting up the monitor . . . . . . . . . . . . . . . . . . . . . . 24

Connecting the stand. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Connecting your monitor . . . . . . . . . . . . . . . . . . . . . . . . . 27

4  │ 

Connecting the HDMI and power cables . . . . . . . . . . . . . . . . . . . . 27

Connecting the DisplayPort (DP to DP) cable (optional) and

power cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Organizing your cables. . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Securing your monitor using Kensington lock (optional) . 28

Removing the monitor stand . . . . . . . . . . . . . . . . . . . . . . 29

VESA wall mounting (optional) . . . . . . . . . . . . . . . . . . . . 29

Operating the monitor . . . . . . . . . . . . . . . . . . . . . . . 31

Power on the monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Using the joystick control . . . . . . . . . . . . . . . . . . . . . . . . 31

Using the rear-panel controls . . . . . . . . . . . . . . . . . . . . . 32

Accessing the menu system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

OSD warning message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Tilt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Vertical extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Built-in diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Common problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Product specific problems . . . . . . . . . . . . . . . . . . . . . . . . 56

Appendix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

FCC notices (U.S. only) and other regulatory

information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Contact Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Safety instructions│  5

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.

• Place the monitor on a solid surface and handle it carefully. The screen is

fragile and can be damaged if dropped or hit sharply.

• Always be sure that your monitor is electrically rated to operate with the AC

power available in your location.

• Keep the monitor in room temperature. Excessive cold or hot conditions can

have an adverse effect on the liquid crystal of the display.

• Do not subject the monitor to severe vibration or high impact conditions. For

example, do not place the monitor inside a car trunk.

• Unplug the monitor when it is going to be left unused for an extended period

of time.

• To avoid electric shock, do not attempt to remove any cover or touch the

inside of the monitor.

6  │  About your monitor

About your monitor

Package contents

Your monitor ships with the components shown in the table below. If any

component is missing, contact Dell. For more information, see Contact Dell.

NOTE: Some items may be optional and may not ship with your monitor.

Some features may not be available in certain countries.

NOTE: If you are connecting a stand that you purchased from any other

source, follow the set up instructions that were included with the

stand.

Component image Component description

Display

Stand riser

Stand base

About your monitor  │  7

Power cable (varies by

country)

HDMI cable

• Quick Setup Guide

• Safety, Environmental,

and Regulatory

Information

8  │  About your monitor

Product features

The Dell S2421HGF monitor has an active matrix, Thin-Film Transistor (TFT),

Liquid Crystal Display (LCD) and LED backlight. The monitor features include:

• 60.47 cm (23.8 in.) viewable area (measured diagonally).

1920 x 1080 (16:9) resolution, plus full-screen support for lower resolutions.

• Supports AMD FreeSync™ Premium, with a high refresh rate of 144 Hz and a

rapid response time of 1 ms gray to gray in Extreme mode*.

• Color gamut of 72% NTSC, CIE 1931 (72%), and CIE 1976 (83%).

• Digital connectivity with DisplayPort and HDMI.

• Tilt and height adjustment capabilities.

• Removable stand and Video Electronics Standards Association (VESA™)

100 mm mounting holes for flexible mounting solutions.

• Plug and play capability if supported by your system.

• On-Screen Display (OSD) adjustments for ease of set-up and screen

optimization.

• Power and OSD buttons lock.

• Security lock slot.

• Stand lock.

• 0.3 W standby power when in sleep mode.

• Optimize eye comfort with a flicker-free screen.

WARNING: The possible long-term effects of blue light emission from

the monitor may cause damage to the eyes, including eye fatigue,

digital eye strain, and so on. ComfortView feature is designed to reduce

the amount of blue light emitted from the monitor to optimize eye

comfort.

*The 1 ms gray-to-gray mode is achievable in the Extreme mode to reduce visible

motion blur and increased image responsiveness. However, this may introduce

some slight and noticeable visual artifacts into the image. As every system setup

and every gamer's needs are different, we recommend that users experiment with

the different modes to find the setting that is right for them.

About your monitor  │  9

Identifying parts and controls

Front view

Label Description Use

1Power On/Off button (with

LED indicator)

To turn the monitor on or off.

Side view

10  │  About your monitor

Back view

Back view without monitor stand Back view with monitor stand

Label Description Use

1Joystick Use it to control the OSD menu.

2Function buttons For more information, see Operating

the monitor.

3VESA mounting holes (100 mm

x 100 mm - behind attached

VESA Cover)

Wall mount monitor using VESA-

compatible wall mount kit (100 mm x

100 mm).

4Regulatory label Lists the regulatory approvals.

5Stand release button Releases stand from the monitor.

6Barcode, serial number, and

Service T

ag label

Refer to this label if you need to

contact Dell for technical support.

The Service Tag is a unique

alphanumeric identifier that enables

Dell service technicians to identify

the hardware components in your

computer and access warranty

information.

7Cable-management slot Use to organize cables by inserting

them through the slot.

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