Dell S2721DGFA Service Manual
Dell 27 Gaming Monitor
-S2721DGFA
User’s Guide
Model: S2721DGFA
Regulatory model: S2721DGFt
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 – 11
Rev. A00
Contents
Safety instructions..............................5
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. . . . . . . . . . . . . . . . . . . . . . 12
Resolution specifications . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Preset display modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Environmental characteristics . . . . . . . . . . . . . . . . . . . . . . . . 17
Pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Plug-and-Play . . . . . . . . . . . . . . . . . . . . . . . . . . 21
LCD monitor quality and pixel policy . . . . . . . . . . . . . . 21
Ergonomics . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Handling and moving your display. . . . . . . . . . . . . . . . 24
Maintenance guidelines . . . . . . . . . . . . . . . . . . . . . 25
Cleaning your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Setting up the monitor..........................26
Connecting the stand . . . . . . . . . . . . . . . . . . . . . . 26
Using the tilt, swivel, and vertical extension . . . . . . . . . . 29
Contents | 3
Tilt, swivel and vertical extension . . . . . . . . . . . . . . . . . . . . . .29
Rotating the Display . . . . . . . . . . . . . . . . . . . . . . . 29
Configuring the display settings on your computer after
rotation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Connecting your monitor . . . . . . . . . . . . . . . . . . . . 31
Organizing your cables . . . . . . . . . . . . . . . . . . . . . 33
Securing your monitor using Kensington lock (optional) . . . 33
Removing the monitor stand . . . . . . . . . . . . . . . . . . 34
Wall mounting (Optional) . . . . . . . . . . . . . . . . . . . . 35
Requirements to view or play HDR content. . . . . . . . . . . 36
Operating the monitor ..........................37
Power on the monitor . . . . . . . . . . . . . . . . . . . . . . 37
Using the joystick control . . . . . . . . . . . . . . . . . . . . 37
Using the rear-panel controls . . . . . . . . . . . . . . . . . . 38
Using the On-Screen Display (OSD) Menu . . . . . . . . . . . 40
Accessing the menu system . . . . . . . . . . . . . . . . . . . . . . . . .40
OSD warning messages . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Locking the rear-panel control buttons . . . . . . . . . . . . . . . . . . .55
Setting the maximum resolution. . . . . . . . . . . . . . . . . . . . . . .56
Troubleshooting ...............................57
Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Built-in diagnostics . . . . . . . . . . . . . . . . . . . . . . . 59
Common Problems. . . . . . . . . . . . . . . . . . . . . . . . 60
Product specific problems . . . . . . . . . . . . . . . . . . . 62
Universal Serial Bus (USB) specific problems . . . . . . . . . 63
Appendix.....................................64
FCC notices (U.S. only) and other regulatory information . . . 64
Contacting Dell . . . . . . . . . . . . . . . . . . . . . . . . . 64
4 | Contents
Safety instructions
WARNING: 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.
For information on safety instructions, see the Safety, Environmental, and Regulatory
Information (SERI).
Safety instructions | 5
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 components may be optional and may not ship with your
monitor. Somefeatures may not be available in certain countries.
Display
Stand riser
6 | About your monitor
Stand base
Power cable (varies by country)
USB 3.0 upstream cable (enables the
USB ports on the monitor)
DisplayPort cable (DisplayPort to
DisplayPort)
HDMI cable
• Quick Setup Guide
• Safety, Environmental, and Regulatory
Information
About your monitor | 7
Product features
The Dell S2721DGFA monitor has an active matrix, Thin-Film Transistor (TFT), Liquid
Crystal Display (LCD), and LED backlight. The monitor features include:
• 68.47 cm (27 in.) viewable area (Measured diagonally) 2560 x 1440 (16:9)
resolution, plus full-screen support for lower resolutions.
• Wide viewing angles with 98% DCI-P3 color gamut.
• Tilt, swivel, pivot and vertical extension adjustment capabilities.
• Removable pedestal stand and Video Electronics Standards Association (VESA™)
100 mm mounting holes for flexible mounting solutions.
• Ultra-thin bezel minimizes the bezel gap during multi-monitor usage, enabling
easier set up with an elegant viewing experience.
• Extensive digital connectivity with DP helps future-proof your monitor.
• Plug and play capability if supported by your computer.
• On-Screen Display (OSD) adjustments for ease of set-up and screen
optimization.
• Game enhanced features such as Timer, Frame Rate Counter and Dark Stabilizer
in addition to enhanced game modes such as FPS, MOBA/RTS, SPORTS, or
RPG , and 3 additional game modes to personalize your preferences.
• Power and OSD buttons lock.
• Security lock slot.
• ≤ 0.3 W in Standby Mode.
• NVIDIA® G-SYNC® Compatible Certification and AMD FreeSync™ Premium
Pro Technology minimizes graphic distortions like screen tearing and stuttering
for smoother, fluid, low latency gameplay.Premium Panel Exchange for peace of
mind.
• Optimize eye comfort with a flicker-free screen and ComfortView feature which
minimizes blue light emission.
WARNING: The possible long-term effects of blue light emission from the
monitor may cause damage to the eyes, including eye fatigue or digital eye
strain. ComfortView feature is designed to reduce the amount of blue light
emitted from the monitor to optimize eye comfort.
8 | About your monitor
Identifying parts and controls
Front view
Label Description Use
1 Power LED indicator Solid white light indicates
the monitor is turned on and
functioning normally. Blinking white
light indicates the monitor is in
Standby Mode.
1
About your monitor | 9
Back view
7
1
2
3
4
5
6
Label Description Use
1 VESA mounting holes (100 mm
x 100 mm-behind attached
VESA cover)
2 Regulatory label Lists the regulatory approvals.
3 Stand release button Releases stand from the monitor.
4 Joystick Use it to control the OSD menu.
5 Function buttons For more information, see Operating the
6 Barcode, serial number, and
Service Tag label
7 Cable-management slot Use to organize cables by inserting them
Wall mount monitor using VESAcompatible wall mount kit (100 mm x 100
mm).
Monitor.
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.
through the slot.
10 | About your monitor
Bottom view
99
1 2 4 5 6 7 8
3
9
11
Label Description Use
1 Power connector Connect the power cable (shipped with your monitor).
2 Security lock slot Secures monitor with security cable lock (sold
separately).
3 HDMI port (HDMI 1) Connect your computer with the HDMI cable (shipped
with your monitor).
4 HDMI port (HDMI 2) Connect your computer with the HDMI cable (shipped
with your monitor).
5 DisplayPort Connect your computer with the DisplayPort cable.
6 Audio line-out port Connect speakers to playback audio through HDMI or
DisplayPort audio channels.
Only two-channel audio is supported.
NOTE: The audio line-out port does not support
headphones.
7 USB upstream port Connect the USB cable that comes with your monitor
to the computer. Once this cable is connected, you can
use the USB downstream connectors on the monitor.
8, 9 USB downstream
ports (4)
10 Audio headphone
port
11 Stand lock Lock the stand to the monitor using a M3 x 6 mm
Connect your USB peripherals such as mouse and
keyboard. Port with battery icon supports BC 1.2.
NOTE: To use these ports, you must connect the USB
upstream cable (shipped with your monitor) between
the monitor and the computer.
Connect headphone speakers.
screw (screw not included).
10
About your monitor | 11
Monitor specifications
Screen type Active matrix - TFT LCD
Panel Type In-plane switching Technology
Aspect ratio 16:9
Viewable image dimensions
Diagonal 68.47 cm (27 in.)
Active Area
Horizontal 596.74 mm (23.49 in.)
Vertical 335.66 mm (13.21 in.)
Area 200301.7 mm2 (310.47 in.2)
Pixel pitch 0.2331 mm x 0.2331 mm
Pixel per inch (PPI) 109
Viewing angle
Horizontal 178° (typical)
Vertical 178° (typical)
Brightness 400 cd/m² (typical)
Contrast ratio 1000 to 1 (typical)
Display screen coating Anti-glare treatment of the front polarizer (3H) hard
coating
Backlight LED edgelight system
Response Time (Gray to
Gray)
Color depth 1.07 billion colors
Color gamut* 98% DCI-P3
Connectivity • 1 x DisplayPort 1.4 (HDCP 1.4/HDCP 2.2)
4 ms (Fast mode)
3 ms (SuperFast mode)
1 ms (Extreme mode)
NOTE: In Extreme mode, slight artifacts may be
encountered due to overdriving for fast speed and
responsiveness. Use Super Fast/Fast mode for optimal
front of screen experience and game play.
• 2 x HDMI 2.0 (HDCP 1.4/HDCP 2.2)
• 4 x USB 3.0 downstream port
• 1 x USB 3.0 upstream port
• 1 x Audio line-out port (3.5 mm jack)
• 1 x Audio headphone port (3.5 mm jack)
12 | About your monitor
Border width (edge of monitor to active area)
To p
Left/Right
Bottom
Adjustability
Height adjustable stand 130 mm
Tilt -5° to 21°
Swivel -45° to 45°
Pivot -90° to 90°
Cable management Ye s
Dell Display Manager (DDM)
Compatibility
Security Security lock slot (cable lock sold separately)
* At panel native only, under Custom Mode preset.
Resolution specifications
Resolution specifications HDMI DisplayPort
Horizontal scan range 30 kHz to 230 kHz 30 kHz to 250 kHz
Vertical scan range 48 Hz to 144 Hz 48 Hz to 165 Hz
7.42 mm
7.43 mm
20.33 mm
Easy Arrange
and other key features
Maximum preset resolution 2560 x 1440 at 144 Hz 2560 x 1440 at 165 Hz
Video display capabilities
(HDMI & DP alternate
mode)
480i, 480p, 576i, 576p, 720p, 1080i, 1080p
About your monitor | 13
Preset display modes
VESA 800 x 600
46.875
75
49.5
+/+
VESA 1280 x 1024
79.976
75.025
135
+/+
VESA 2048 x 1152
7260162
+/-
(DisplayPort 1.4 only)
Display mode Horizontal
frequency
(kHz)
VESA 720 x 400 31.469 70.087 28.322 - /+
VESA 640 x 480 31.469 59.94 25.175 -/VESA 640 x 480 3 7.5 75 31.5 -/VESA 800 x 600 37.879 60.317 40 +/+
VESA 1024 x 768 48.363 60.004 65 - /VESA 1024 x 768 60.023 75.029 78.75 +/+
VESA 1152 x 864 67. 5 75 108 +/+
VESA 1280 x 800 49.702 59.8 83.5 -/+
VESA 1280 x 1024 64 60 108 +/+
VESA 1600 x 1200 75 60 162 - /+
VESA 1680 x 1050 65.92 59.95 146.25 +/+
VESA 1920 x 1080 67.5 60 148.5 -/+
VESA 1920 x 1080 135 120 297 +/+
VESA 1920 x 1200 74.56 59.89 193.25 -/+
VESA 2560 x 1080 66.66 60 185.581 + /VESA 2560 x 1440 88.8 60 241.5 +/VESA 2560 x 1440 182.996 120 497.75 +/VESA 2560 x 1440 222.192 144 592 +/VESA 2560 x 1440
244.32 165 645 +/-
Vertical
frequency
(Hz)
Pixel
clock
(MHz)
Sync polarity
(Horizontal/
Vertical)
14 | About your monitor
Electrical specifications
Video input signals • Digital video signal for each dierential line
Per dierential line at 100 ohm impedance
• DP/HDMI signal input support
Input voltage/ frequency/current 100-240 VAC / 50 or 60 Hz ± 3 Hz / 1.6 A
(maximum)
Inrush current 120 V: 30 A (Max.)
240 V: 60 A (Max.)
Power Consumption 0.2 W (Off Mode)
0.2 W (Standby Mode)
29.1 W (On Mode)
90 W (Max)
28.17 W (Pon)
87.62 kWh (TEC)
1
As dened in EU 2019/2021 and EU 2019/2013.
2
Max brightness and contrast setting with maximum power loading on all USB ports.
3
Pon: Power consumption of On Mode measured with reference to Energy Star test
1
1
1
2
3
3
method.
TEC: Total energy consumption in kWh measured with reference to Energy Star test
method.
This document is informational only and reflects laboratory performance. Your product
may perform differently, depending on the software, components and peripherals
you ordered and shall have no obligation to update such information. Accordingly, the
customer should not rely upon this information in making decisions about electrical
tolerances or otherwise. No warranty as to accuracy or completeness is expressed or
implied.
About your monitor | 15
Physical characteristics
Connector type
Signal cable type • DisplayPort to DisplayPort 1.8 m cable
Dimensions (with stand)
Height (extended)
Height (compressed)
Width
Depth
Dimensions (without stand)
Height
Width
Depth
Stand dimensions
Height (extended)
Height (compressed)
Width
Depth
Weight
Weight with packaging 9.7 kg (21.4 lb)
Weight with stand assembly and
cables
Weight without stand assembly
(For wall mount or VESA mount
considerations - no cables)
Weight of stand assembly 2.1 kg (4.6 lb)
• One DisplayPort
• Two HDMI 2.0 ports
• One audio line-out port
• One headphone port
• Four USB 3.0 downstream ports
• One USB 3.0 upstream port
• HDMI 1.8 m cable
• USB 3.0 1.8 m cable
523.9 mm (20.63 in.)
393.9 mm (15.51 in.)
611.6 mm (24.08 in.)
200.3 mm (7.89 in.)
363.6 mm (14.31 in.)
611.6 mm (24.08 in.)
67.8 mm (2.67 in.)
416.9 mm (16.41 in.)
369.2 mm (14.54 in.)
275.9 mm (10.86 in.)
200.3 mm (7.89 in.)
7.0 kg (15.4 lb)
4.5 kg (9.9 lb)
16 | About your monitor
Environmental characteristics
Compliant Standards
• RoHS Compliant
• BFR/PVC Free monitor (excluding external cables)
• Arsenic-Free glass and Mercury-Free for the panel only
Temperature
Operating 0°C to 40°C (32°F to 104°F)
Non-operating –20°C to 60°C (–4°F to 140°F)
Humidity
Operating 10% to 80% (non-condensing)
Non-operating 5% to 90% (non-condensing)
Altitude
Operating 5,000 m (16,404 ft) (maximum)
Non-operating 12,192 m (40,000 ft) (maximum)
Thermal dissipation 307.09 BTU/hour (maximum)
99.36 BTU/hour (On Mode)
About your monitor | 17
Pin assignments
DisplayPort
Pin
number
1 ML3(n) 11 GND
2 GND 12 ML0(p)
3 ML3(p) 13 CONFIG1
4 ML2(n) 14 CONFIG2
5 GND 15 AUX CH (p)
6 ML2(p) 16 GND
7 ML1(n) 17 AUX CH (n)
8 GND 18 Hot Plug Detect
9 ML1(p) 19 Return
10 ML0(n) 20 DP_PWR
20-pin side of the
connected signal cable
Pin
number
20-pin side of the
connected signal cable
18 | About your monitor
HDMI port
Pin
number
1 TMDS DATA 2+ 11 TMDS CLOCK SHIELD
2 TMDS DATA 2 SHIELD 12 TMDS CLOCK-
3 TMDS DATA 2- 13 CEC
4 TMDS DATA 1+ 14 Reserved (N.C. on device)
5 TMDS DATA 1 SHIELD 15 DDC CLOCK (SCL)
6 TMDS DATA 1- 16 DDC DATA (SDA)
7 TMDS DATA 0+ 17 DDC/CEC Ground
8 TMDS DATA 0 SHIELD 18 +5 V POWER
9 TMDS DATA 0- 19 HOT PLUG DETECT
10 TMDS CLOCK+
19-pin side of the
connected signal cable
Pin
number
19-pin side of the
connected signal cable
About your monitor | 19
Universal Serial Bus (USB)
This section gives you information about the USB ports available on your monitor.
NOTE: Up to 2 A on USB downstream port (port with battery
icon) with BC 1.2 compliance devices; up to 0.9 A on the other 2 USB
downstream ports.
Your monitor has the following USB ports:
• 1 upstream port
• 4 downstream - 4 at bottom
Power Charging Port - the ports with battery icon supports fast current
charging capability if the device is BC 1.2 compatible.
NOTE: The monitor’s USB ports work only when the monitor is on or
in the standby mode. If you turn off the monitor and then turn it on,
the attached peripherals may take a few seconds to resume normal
functionality.
Transfer speed Data rate Maximum power consumption (each port)
SuperSpeed 5 Gbps 4.5 W
Hi-Speed 480 Mbps 2.5 W
Full speed 12 Mbps 2.5 W
20 | About your monitor
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