Dell D2720DS User manual

Model: D2720DS
Regulatory model: D2720DSt
Dell Monitor
D2720DS
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 © 2019 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.
2019 – 06
Rev. A00

Contents
About Your Monitor ..................................... 5
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Identifying Parts and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Monitor Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Plug-and-Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
LCD Monitor Quality and Pixel Policy. . . . . . . . . . . . . . . . . . . . . . .15
Setting Up the Monitor.................................. 16
Attaching the stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Using the Tilt and Vertical Extension . . . . . . . . . . . . . . . . . . . . . . .17
Connecting Your Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Organizing Your Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Removing the Monitor Stand. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Wall Mounting (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Operating the Monitor .................................. 22
Turning on the Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Using the Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . 22
Using the On-Screen Display (OSD) Menu . . . . . . . . . . . . . . . . . . . 24
Troubleshooting .......................................30
Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Contents | 3

4 | Contents
Common Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Product Specific Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Appendix ..............................................34
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Contacting Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Setting Up Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Maintenance Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

About Your Monitor | 5
About Your Monitor
Package Contents
Your monitor ships with the components shown below. Make sure 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 may not be available in certain countries.
Monitor
Stand riser
Stand base
Screw x 4

6 | About Your Monitor
Power cable (varies by country)
HDMI cable
•Quick Setup Guide
•Safety,Environmental,and
Regulatory Information
Product Features
The Dell D2720DS monitor has an active matrix, thinfilm transistor (TFT), liquid crystal
display (LCD), and LED backlight. The monitor features include:
• 68.467cm (27.0-inch) viewable area display (measured diagonally). 2560x1440
resolution with full-screen support for lower resolutions.
• Tilt, pivot and height adjustment capabilities.
• Removable stand and Video Electronics Standards Association (VESA™) 100 mm
mounting holes for flexible mounting solutions.
• Digital connectivity with DisplayPort and HDMI.
• Plug and play capable if supported by your system.
• Minimize eye discomfort with a screen.
• On-screen display (OSD) adjustments for easy setup and screen optimization.
• Security lock slot.
• Stand lock.
• Arsenic-free glass and Mercury-free for the panel only.
• 0.3 W standby power when in the sleep mode.

About Your Monitor | 7
Identifying Parts and Controls
Front view
21
Label Description
1Function buttons (For more information, see Operating the Monitor)
2Power on/off button (with LED indicator)

8 | About Your Monitor
Back View
1
2
3
4
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).
2Security lock slot Secures monitor with security lock (sold separately).
3Barcode, serial number,
and Service Tag label
Refer to this label if you need to contact Dell for
technical support.
4Cable-management slot Use to organize cables by inserting them through the
slot.
Bottom View
1 2 3
Label Description Use
1Power connector Connect the power cable.
2HDMI connector Connect your computer with HDMI cable.
3DP connector Connect your computer with DisplayPort cable (sold
separately).

About Your Monitor | 9
Monitor Specifications
Screen type Active matrix - TFT LCD
Panel Type In-Plane Switching Technology
Aspect ratio 16:9
Viewable image dimensions
Diagonal 684.67 mm (27 inches)
Active Area
Horizontal 596.74 mm (23.5 inches)
Vertical 335.66 mm (13.2 inches)
Area 200301.7 mm² (310.20 inches²)
Pixel pitch 0.233 mm x 0.233 mm
Pixel per inch (PPI) 108.79
Viewing angle
Horizontal 178° (typical)
Vertical 178° (typical)
Brightness 350 cd/m² (typical)
Contrast ratio 1000 to 1 (typical)
Faceplate coating Anti-Glare with 3H hardness
Backlight LED Edgelight system
Response Time (Gray to Gray) 6 ms with OD
Color depth 16.7 million colors
Color gamut CIE 1976 (79%), CIE 1931 (72%)
Connectivity •1 HDMI port
•1 DP port
Border width (edge of monitor to
active area)
7.9 mm (Top/Left/Right)
18.5 mm (Bottom)
Adjustability
Height adjustment
Tilt
Pivot
Up to 100 mm
-7° to 23°
0° to 90°
Security Security lock slot (cable lock sold separately)
Resolution Specifications
Horizontal scan range 30 kHz to 88 kHz
Vertical scan range 46 Hz to 65 Hz
Maximum preset resolution 2560 x 1440 at 60 Hz

10 | About Your Monitor
Video input capabilities
(HDMI playback)
480i, 480p, 576i, 576p, 720p, 1080i, 1080p,2160p
Preset Display Modes
Display Mode Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(Horizontal/
Vertical)
720 x 400 31.5 70.0 28.3 -/+
VESA, 640 x 480 31.5 60.0 25.2 -/-
VESA, 640 x 480 37.5 75.0 31.5 -/-
VESA, 800 x 600 37.9 60.3 40.0 +/+
VESA, 800 x 600 46.9 75.0 49.5 +/+
VESA, 1024 x 768 48.4 60.0 65.0 -/-
VESA, 1024 x 768 60.0 75.0 78.8 +/+
VESA, 1152 x 864 67.5 75.0 108.0 +/+
VESA, 1280 x 1024 64.0 60.0 108.0 +/+
VESA, 1280 x 1024 80.0 75.0 135.0 +/+
VESA, 1600 x 1200 75.0 60.0 162.0 +/+
VESA, 1920 x 1080 67.5 60.0 148.5 +/+
VESA, 1600 x 900 60.0 60.0 108 +/-
CVR, 2560 x 1440
88.8
60.0
241.5
+/-
Electrical Specifications
Video input signals •HDMI 1.4, 150mV=<Vp-p=<1560mV for each
dierential line, 100 ohm input impedance per
dierential pair
•DisplayPort 1.2, 120mv min.(For HBR) 50mv min.
(For HBR2) for each dierential line, 100 ohm input
impedance per dierential pair
AC Input voltage/ frequency/
current
100-240 VAC / 50 or 60 Hz ± 3 Hz / 1.5A (typical)
Inrush current •120 V: 30 A (Max.) at 0 °C (cold start)
•220 V: 60 A (Max.) at 0 °C (cold start)