Dell UltraSharp U3821DW Manual de usuario

Dell UltraSharp 38 Curved USB-C

Hub Monitor - U3821DW

User’s Guide

Model: U3821DW

Regulatory model: U3821DWb

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.

2021 - 01

Rev. A00

│  3

Contents

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

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

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

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

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

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

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

Monitor specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Resolution specifications . . . . . . . . . . . . . . . . . . . . . . . . . 15

Supported video modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Preset display modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Environmental characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Plug and play capability . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Universal Serial Bus (USB) interface . . . . . . . . . . . . . . . . 21

Super speed USB 5Gbps (USB3.2 Gen1) . . . . . . . . . . . . . . . . . . . . 21

USB Type-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

USB 3.2 upstream connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

USB 3.2 downstream connector . . . . . . . . . . . . . . . . . . . . . . . . . . 22

USB Type-C connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

USB ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

RJ45 connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Supported OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

LCD monitor quality and pixel policy . . . . . . . . . . . . . . . . 25

Maintenance guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4  │ 

Cleaning your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Setting up the monitor . . . . . . . . . . . . . . . . . . . . . . .27

Attaching the stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Connecting your monitor . . . . . . . . . . . . . . . . . . . . . . . . . 30

Connecting the DisplayPort (DisplayPort to DisplayPort) cable. . 31

Connecting the HDMI cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Connecting the USB Type-C cable . . . . . . . . . . . . . . . . . . . . . . . . 33

Connecting the super speed USB 5Gbps (USB 3.2 Gen1) cable . . 33

Connecting the monitor for RJ45 Cable (optional) . . . . . . . . . . . . 35

Organizing your cables. . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Removing the monitor stand . . . . . . . . . . . . . . . . . . . . . . 36

VESA wall mounting (optional) . . . . . . . . . . . . . . . . . . . . 37

Operating the monitor . . . . . . . . . . . . . . . . . . . . . . 38

Power on the monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Using the joystick control . . . . . . . . . . . . . . . . . . . . . . . . 38

Using the On-Screen Display (OSD) menu . . . . . . . . . . . 39

Accessing the Menu Launcher. . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Using the navigation keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Accessing the menu system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

OSD warning message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Setting the maximum resolution . . . . . . . . . . . . . . . . . . . 64

Setting the KVM switch . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Setting the Auto KVM . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Using the tilt, swivel, and vertical extension . . . . . . . . . . 69

Tilt, swivel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Vertical extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Slant adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

│  5

Built-in diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Common problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Product specific problems . . . . . . . . . . . . . . . . . . . . . . . . 77

Universal Serial Bus (USB) specific problems . . . . . . . . . 79

Speakers Specific Problems . . . . . . . . . . . . . . . . . . . . . . 80

Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

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

information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Contact Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

EU product database for energy label and product

information sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

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 technical support. 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 attaching a stand that you purchased from any other

source, follow the setup instructions that were included with the stand.

Display

Stand riser

Stand base

About your monitor  │  7

Power cable (varies by

country)

DisplayPort cable

(DisplayPort to DisplayPort)

HDMI cable

USB Type-C cable

Super speed USB 5Gbps

(USB 3.2 Gen1) upstream

cable (enables the USB

ports on the monitor)

• Quick Setup Guide

•Factorycalibrationreport

• Safety, Environmental,

and Regulatory

Information

8  │  About your monitor

Product features

The Dell U3821DW monitor has an active matrix, Thin-Film Transistor (TFT), Liquid

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

• 95.29 cm (37.52 in.) viewable area (measured diagonally).

3840 x 1600 (21:9) resolution, plus full-screen support for lower resolutions.

• Wide viewing angle to allow viewing from a sitting or standing position.

• Color gamut of sRGB 100% and Rec 709 100% with an average Delta E < 2;

also supports DCI-P3 95%.

• Digital connectivity with DisplayPort, USB Type-C and HDMI.

• Single USB Type-C to supply power (PD 90 W) to a compatible notebook

while receiving video & data signal.

• Tilt, swivel, height, and slant adjustment capabilities.

• Ultra-thin bezel minimizes the bezel gap in multi-monitor usage, enabling

easier setup with an elegant viewing experience.

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

100 mm mounting holes for flexible mounting solutions.

• Equipped with 1 USB Type-C upstream port, 1 USB Type-C downstream port, 1

super speed USB 5Gbps (USB 3.2 Gen1) Type B upstream port, 1 super speed

USB 5Gbps (USB 3.2 Gen1) Type-A downstream charging port, and 3 super

speed USB 5Gbps (USB 3.2 Gen1) Type-A downstream ports.

• USB-C and RJ45 ports enable a single-cable, network-connected experience.

• Plug and play capability if supported by your system.

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

optimization.

• Supports Picture by Picture (PBP) and Picture in Picture (PIP) Select mode.

• The buil t-in KVM switch allows you to control up to 2 computers from a single

set of keyboard and mouse connected to the monitor.

• Supports Auto KVM for multiple input setup.

• Power and joystick buttons lock.

• Security lock slot.

• Stand lock.

• < 0.3 W in Standby Mode.

•Built-inspeakers(9W)x2.

• Optimize eye comfort with a flicker-free screen.

About your monitor  │  9

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.

Identifying parts and controls

Front view

Label Description

1Power LED indicator

Solid white light indicates that the monitor is turned on and functioning

normally. Blinking white light indicates that the monitor is in Standby

Mode.

10  │  About your monitor

Back view

Back view with monitor stand

Label Description Use

1VESA 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).

2Regulatory label Lists the regulatory approvals.

3Stand release button Releases stand from the monitor.

4Barcode, serial number, and

Service T

ag label

Refer to this label if you need to

contact Dell for technical support.

5Power On/Off button To turn the monitor on or off.

6Joystick Use to control the OSD menu. (For

more Information, see Operating the

monitor)

7Cable-management slot Use to organize cables by inserting

them through the slot.

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