Dell 210-AVMG User manual

Monitor Model: P2421DC
Regulatory Model: P2421DCc
Dell 24 USB-C Monitor - P2421DC
User’s Guide

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.
Copyright © 2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are
trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective
owners.
2020 – 02
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
Side view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Monitor specifications . . . . . . . . . . . . . . . . . . . 13
Resolution specifications . . . . . . . . . . . . . . . . . . . . . . 14
Supported video modes . . . . . . . . . . . . . . . . . . . . . . . 15
Preset display modes . . . . . . . . . . . . . . . . . . . . . . . . 15
MST Multi-Stream Transport (MST) Modes . . . . . . . . . . . . 16
Electrical specifications. . . . . . . . . . . . . . . . . . . . . . . 16
Physical characteristics. . . . . . . . . . . . . . . . . . . . . . . 17
Environmental characteristics . . . . . . . . . . . . . . . . . . . 18
Power management modes . . . . . . . . . . . . . . . . . . . . . 19
Plug and play capability . . . . . . . . . . . . . . . . . . 25
LCD monitor quality and pixel policy . . . . . . . . . . . 25
Maintenance guidelines . . . . . . . . . . . . . . . . . . 25
Cleaning your monitor. . . . . . . . . . . . . . . . . . . . . . . .25
Setting up the monitor...................... 26
Attaching the stand . . . . . . . . . . . . . . . . . . . . 26

4 │
Connecting your monitor . . . . . . . . . . . . . . . . . 28
Connecting the DP cable . . . . . . . . . . . . . . . . . . . . . . 28
Connecting the monitor for DP Multi-Stream Transport (MST)
function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Connecting the USB Type-C cable . . . . . . . . . . . . 29
Connecting the monitor for USB-C Multi-Stream Transport
(MST) function. . . . . . . . . . . . . . . . . . . . . . . 30
Organizing cables . . . . . . . . . . . . . . . . . . . . . 31
Removing the stand . . . . . . . . . . . . . . . . . . . . 32
Wall mounting (optional) . . . . . . . . . . . . . . . . . 33
Operating your monitor ..................... 34
Power on the monitor . . . . . . . . . . . . . . . . . . . 34
USB-C charging options . . . . . . . . . . . . . . . . . . 35
Using the control buttons . . . . . . . . . . . . . . . . . 35
OSD controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Using the On-Screen Display (OSD) menu . . . . . . . . 37
Accessing the OSD menu . . . . . . . . . . . . . . . . . . . . . . 37
Menu and Power button lock . . . . . . . . . . . . . . . . . . . . 48
OSD warning messages . . . . . . . . . . . . . . . . . . . . . . .50
Setting up your monitor . . . . . . . . . . . . . . . . . . 53
Setting the maximum resolution . . . . . . . . . . . . . . . . . . 53
If you have a Dell desktop or a Dell portable computer with internet
access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
If you have a non Dell desktop, portable computer, or graphics card
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Using the tilt, swivel, and vertical extension . . . . . . . 55
Tilt, Swivel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

│5
Vertical Extension . . . . . . . . . . . . . . . . . . . . . 55
Rotating the Monitor . . . . . . . . . . . . . . . . . . . . . . . . 56
Troubleshooting ........................... 58
Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Built-in diagnostics . . . . . . . . . . . . . . . . . . . . 60
Common problems . . . . . . . . . . . . . . . . . . . . . 62
Product-specific problems . . . . . . . . . . . . . . . . 65
Appendix..................................67
Safety Instructions. . . . . . . . . . . . . . . . . . . . . 67
FCC notices (U.S. Only) and other regulatory information67
Contacting Dell. . . . . . . . . . . . . . . . . . . . . . . 68

6 │About your monitor
About your monitor
Package contents
Your monitor ships with the components shown below. Ensure that you have
received all the components and see Contacting Dell for more information 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
Stand riser
Stand base
Power cable (varies by
countries)

About your monitor │7
DP 1.2 cable ( 1.8 m length)
USB Type-C cable (C to C, 1.8
m length)
Cable Tie
∞Quick Setup Guide
∞Safety and Regulatory
Information

8 │About your monitor
Product features
The Dell P2421DC monitor has an active matrix, Thin-Film Transistor (TFT), Liquid
Crystal Display (LCD), anti-static, and LED backlight. The monitor features include:
∞60.45 cm (23.8 in.) viewable area display (measured diagonally). 2560 x 1440
resolution, with full-screen support for lower resolutions.
∞Wide viewing angle to allow viewing from a sitting or standing position, or while
moving from side-to-side.
∞Color gamut of 99% sRGB.
∞High Dynamic Contrast Ratio.
∞Tilt, swivel, height, and rotate adjustment capabilities.
∞Removable stand and Video Electronics Standards Association (VESA™) 100 mm
mounting holes for flexible mounting solutions.
∞Digital connectivity with DisplayPort and HDMI.
∞Equipped with 4 USB downstream ports.
∞Single USB Type-C to supply power to compatible notebook while receiving
video signal.
∞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 media includes an Information File (INF), Image
Color Matching File (ICM), and product documentation.
∞Security lock slot.
∞Stand lock.
∞Capability to switch from wide aspect to standard aspect ratio while maintaining
the image quality.
∞0.3 W standby power when in the 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.

About your monitor │9
Identifying parts and controls
Front view
1 2
Control buttons
Label Description Use
1Function buttons Use the function buttons to adjust
items in the OSD menu. (For more
information, see Using the control
buttons)
2Power On/Off button Use the power button to turn the
monitor On and Off.

10 │About your monitor
Back view
SVCTag:
1234567
ExpressService
Code:
123456 789 0
S/N:CN-012345-
TV100-96N-001V
-A00
Dateof Mfg/⭕ӝᰛᵕ⭕⭘ᰛᵕ: August. 2019
Q40G024N-700-XXA
⏨Წᱴ⽰ಞ
ශ:P2421DC
䗉ޛ⭫Ⓠ:
100-240V 50/60Hz,2.5A
ѣള࡬䙖
DELL P2421DC
Q40G024N-700-XXA
DELL P2421DC
FlatPanelMonitor /Monitor Plano Panel /Moniteur écran plat /⏢Ღ亟⽪ಘ
ModelNo./Modelo /N°de modelo /ර㲏: P2720DCc
InputRang/Entrade /Daya Tegangan:100-240V 50/60Hz,2.5A
䕨ޕ䴫ⓀӔ⍱䴫༃100-240Կ⢩,2.5ᆹษ,50/60䎛㥢
Consumodeenergía en operación: xxxxx Wh
Удельнаямощностьрабочего режима - xxxxВт/см²
Потребляемаямощностьизделием в режиме ожидания - xx Вт
Потребляемаямощностьизделием в выключенном режиме - xx Вт
Apparatetmålkoples jordet skkontakt.
Apparatenskallanslutas ll jordat uag.
Laiteonliiteävä suojakoskemilla varusteuun pistorasiaan.
Apparatetsskpropskal lslues en skkontakt med jord,
somgiverforbindelse l skproppens jord.
Theequipmentmust be connected to an earthed mains socket-outlet.
L'appareildoitêtre branché sur une prise de courant munie d'une mise à la terre.
MadeinChina /сделанный в Китай /Fabriqué en Chine /ѣു㼳䙖䆜䃔ֵ⭞䚄ᓜᚆۭᇩ㿌࣑Ⱦ
www.dell.com/regulatory_compliance Raheen Business Park Limerick Ireland (for EU Only) 
CANICES-3(B)/NMB-3(B)
Thisdevicecomplies with part 15 of the FCC Rules. Operaonissubject to the following two condions:
(1)thisdevice may not cause harmful interference, and
(2)thisdevice must accept any interference received, including interference that may cause undesired operaon.

XXXXX
R33037
RoHS
䝕
ޛ࣑100V,2.5A,50/60 Hz
XXXXXX-XX
IS13252 (Part 1)/
IEC60950-1
R-41018660
www.bis.gov.in
xxxxxxxxxxxxx
R-R-TPF-P2421DCc
㐔㷡㢬ڕTPVElectronics(Fujian) Co., Ltd.(for Korea)
㥐㦤㣄ڕL&TDisplayTechnology(Fujian)Ltd.(for Korea)
080-200-3800
2
3
4
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1
Back View with monitor stand
Label Description Use
1Cable management slot Use to organize cables by routing them
through the slot.
2VESA mounting holes (behind
VESA cover)
VESA mounting holes (100 mm x
100 mm). Use for Wall mounting the
monitor through a VESA-compatible
wall mount kit.
3Regulatory information label Lists the regulatory approvals.
4Stand release button Releases stand from monitor.
5Regulatory label (including
Barcode serial number and
Service Tag label)
Lists the regulatory approvals. 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.