Dell S3221QS User manual

Monitor Model: S3221QS
Regulatory Model: S3221QSc
Dell S3221QS Monitor
User’s Guide

2 │
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 – 08
Rev. A00

│3
Contents
Safety instructions.......................... 6
About your monitor ..........................7
Package contents . . . . . . . . . . . . . . . . . . . . . . 7
Product features . . . . . . . . . . . . . . . . . . . . . . .9
Identifying parts and controls . . . . . . . . . . . . . . . 10
Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Side view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Monitor specifications . . . . . . . . . . . . . . . . . . . 14
Speaker Specifications . . . . . . . . . . . . . . . . . . . . . . . 15
Resolution specifications . . . . . . . . . . . . . . . . . . . . . . 16
Supported video modes . . . . . . . . . . . . . . . . . . . . . . . 16
Preset display modes . . . . . . . . . . . . . . . . . . . . . . . . 17
Physical characteristics. . . . . . . . . . . . . . . . . . . . . . . 22
Environmental characteristics . . . . . . . . . . . . . . . . . . . 23
Power management modes . . . . . . . . . . . . . . . . . . . . . 24
Plug and play capability . . . . . . . . . . . . . . . . . . 25
LCD monitor quality and pixel policy . . . . . . . . . . . 25
Ergonomics. . . . . . . . . . . . . . . . . . . . . . . . . 26
Handling and moving your display . . . . . . . . . . . . . 28
Maintenance guidelines . . . . . . . . . . . . . . . . . . 29

4 │
Cleaning your monitor. . . . . . . . . . . . . . . . . . . . . . . .29
Setting up the monitor...................... 30
Connecting the stand . . . . . . . . . . . . . . . . . . . 30
Connecting your monitor . . . . . . . . . . . . . . . . . 32
Connecting the HDMI and USB 3.0 cable. . . . . . . . . . . . . . 32
Organizing cables . . . . . . . . . . . . . . . . . . . . . 33
Securing your monitor using Kensington lock (optional) 34
Removing the stand . . . . . . . . . . . . . . . . . . . . 35
Wall mounting (optional) . . . . . . . . . . . . . . . . . 36
Operating your monitor ......................37
Power on the monitor . . . . . . . . . . . . . . . . . . . 37
Using the control buttons . . . . . . . . . . . . . . . . . 37
Control buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
OSD controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Using the On-Screen Display (OSD) menu . . . . . . . . 40
Accessing the OSD menu . . . . . . . . . . . . . . . . . . . . . . 40
Menu and Power button lock . . . . . . . . . . . . . . . . . . . . 53
OSD warning messages . . . . . . . . . . . . . . . . . . . . . . .55
Setting the maximum resolution . . . . . . . . . . . . . 58
Using the tilt and vertical extension. . . . . . . . . . . . 60
Tilt Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Vertical Extension . . . . . . . . . . . . . . . . . . . . . . . . . .60
Troubleshooting ............................61
Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . 61

│5
Built-in diagnostics . . . . . . . . . . . . . . . . . . . . 63
Common problems . . . . . . . . . . . . . . . . . . . . . 65
Product-specific problems . . . . . . . . . . . . . . . . 68
Appendix................................. 69
FCC notices (U.S. Only) and other regulatory information69
Contacting Dell. . . . . . . . . . . . . . . . . . . . . . . 69
S3221QS Outline Dimension...................70

6 │Safety instructions
Safety instructions
Use the following safety guidelines to protect your monitor from potential damage
and to ensure your personal safety. Unless otherwise noted, each procedure
included in this document assumes that you have read the safety information that
shipped with your monitor.
Before using the monitor, read the safety information that is
shipped with your monitor and also printed on the product. Keep the
documentation at a secure location for future reference.
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.
• Connect the power cable from the monitor to a wall outlet that is near and
accessible. See Connecting your monitor.
• Do not place and use the monitor on a wet surface or near water.
• 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.

About your monitor │7
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 Contacting Dell.
NOTE: Some items may be optional and may not ship with your monitor.
Some features or media may not be available in certain countries.
Display
Stand riser
Stand base
Power cable (varies by
countries)

8 │About your monitor
HDMI 2.0 cable
USB 3.0 upstream cable
(enables the USB ports on
the monitor)
• Quick Setup Guide
• Safety and Regulatory
Information

About your monitor │9
Product features
The Dell S3221QS monitor has an active matrix, Thin-Film Transistor (TFT), Liquid
Crystal Display (LCD), anti-static, and LED backlight. The monitor features include:
• 80.01 cm (31.5 in.) viewable area display (measured diagonally).
• 3840 x 2160 resolution, with full-screen support for lower resolutions.
• Supports AMD FreeSync™ or No Sync, a rapid response time of 4 ms.
• Supports 40 Hz to 60 Hz (HDMI) and 40 Hz to 60 Hz (DisplayPort) in FreeSync
Mode.
• Supports High Dynamic Range.
• Supports Picture by Picture (PBP) and Picture in Picture (PIP) modes.
• Build-in Speaker (5 W) x 2.
• Supports Audio line out to connect external speaker or sub-woofer.
• Color gamut of 99% sRGB.
• Digital connectivity with DisplayPort and HDMI.
• Equipped with 1 USB upstream port and 2 USB downstream ports.
• Plug and play capability if supported by your computer.
• On-Screen Display (OSD) adjustments for ease of setup and screen optimization.
• Removable stand and Video Electronics Standards Association (VESA™) 100 mm
mounting holes for flexible mounting solutions.
• Tilt and height adjustment capabilities.
• Security-lock slot.
• 0.3 W standby power when in Standby Mode.
• Supports Dell Display Manager.
• 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.

10 │About your monitor
Identifying parts and controls
Front view
21
Control buttons
Label Description Use
1Function buttons To adjust the items in the OSD menu.
(For more information, see Using the
control buttons)
2Power On/Off button To turn the monitor On and Off.

About your monitor │11
Back view
Back View with monitor stand
Label Description Use
1Cable management slot Use to organize cables by routing them
through the slot.
2Regulatory information label Lists the regulatory approvals.
3Stand release button Releases the stand from the monitor.
4Regulatory 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.
5VESA mounting holes (4) Four VESA mounting holes (100 mm x
100 mm) accessible behind the VESA
cover used for wall mounting the
monitor through a VESA-compatible
wall mount kit. See Wall mounting
(optional).

12 │About your monitor
Side view
Bottom view
8 10
6
3 1154 9
7
2121
Bottom view without monitor stand
Label Description Use
1Built-in right speaker Provides audio output.
2Security-lock slot Secure your monitor using a security lock
(purchased separately) to prevent unauthorized
movement of your monitor. See Securing your
monitor using Kensington lock (optional).
3Power connector Connect the power cable (shipped with your
monitor).
4HDMI1 2.0 port Connect to your computer using a HDMI cable.
5HDMI2 2.0 port Connect to your computer using a HDMI cable.
6Stand lock feature To lock the stand to the monitor using a M3 x 6
mm screw (screw not included).

About your monitor │13
7DisplayPort 1.2 Connect to your computer using a DisplayPort
cable (purchased separately).
8Audio line out port Connect to an external speaker or a sub-woofer
(purchased separately).*
9USB 3.0 upstream
port
Connect the USB cable from this port to your
computer to enable the USB ports on your
monitor.
10 USB 3.0 downstream
ports
Connect your USB peripherals such as storage
devices and printers.
NOTE: To use this port, you must
connect the USB upstream cable
(shipped with your monitor) between
the monitor and the computer.
11 USB 3.0 downstream
with BC 1.2 charging
USB 3.0 downstream port with charging
capability. Connect to charge your USB device.
NOTE: To use this port, you must
connect the USB upstream cable
(shipped with your monitor) between
the monitor and the computer.
12 Built-in left speaker Provides audio output.
*Audio line out port does not support headphones.

14 │About your monitor
Monitor specifications
Model S3221QS
Screen type Active matrix-TFT LCD
Panel type Vertical Alignment
Viewable image
Diagonal
Horizontal, Active Area
Vertical, Active Area
Area
800.1 mm (31.5 in.)
697.3 mm (27.5 in.)
392.3 mm (15.4 in.)
273550.8 mm2(423.5 in.2)
Native resolution and
refresh rate
3840 x 2160 at 60 Hz
Pixel pitch 0.18159 mm x 0.18159 mm
Pixel per inch (PPI) 139
Viewing angle
Horizontal
Vertical
178° (typical)
178° (typical)
Luminance output 300 cd/m² (typical)
Contrast ratio 3000 to 1 (typical)
Faceplate coating Anti-glare with 3H hardness, Haze 25%
Backlight LED edgelight system
Response time 8 ms gray to gray in Normal mode
5 ms gray to gray in Fast mode
4 ms gray to gray in Extreme mode*
* The 4 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 user's
needs are different modes to find the setting that is
right for them.

About your monitor │15
Curvature 1800R (typical)
Color depth 1.07 billion colors
Color gamut sRGB CIE 1931 (99%) CIE1976 (98.8%)
DCI P3 CIE 1931 (90%) CIE1976 (92.4%)
Connectivity 2 x HDMI 2.0 with HDCP 2.2 (3840 x 2160, up to 60 Hz)
1 x DisplayPort 1.2 (3840 x 2160, up to 60 Hz)
1 x USB 3.0 upstream
1 x USB 3.0 downstream
1 x USB 3.0 downstream with BC 1.2 charging
1 x Audio line out
Bezel width (edge of monitor to active area)
Top
Left/Right
Bottom
8.1 mm
8.2 mm
24.4 mm
Adjustability
Height adjustable stand
Tilt
Swivel
Slant Adjust
70 mm
-5° to 21°
N/A
-4° to 4°
Dell display manager
compatibility
Easy Arrange and other key features
Security Security-lock slot (cable lock optional purchase)
Speaker Specifications
Speaker rated power 2 x 5 W
Frequency Response 200 Hz - 16 kHz
Impedance 8 ohm

16 │About your monitor
Resolution specifications
Model S3221QS
Horizontal scan range 29 kHz to 140 kHz
Vertical scan range 40 Hz to 60 Hz (HDMI)
40 Hz to 60 Hz (DisplayPort)
Maximum preset
resolution
3840 x 2160 at 60 Hz with HDCP 2.2
3840 x 2160 at 60 Hz (DisplayPort)
3840 x 2160 at 60 Hz (HDMI)
Supported video modes
Model S3221QS
Video display capabilities
(HDMI/DisplayPort)
480p, 480i, 576p, 720p, 1080p, 576i, 1080i, QHD, UHD
NOTE: This monitor supports AMD FreeSync.

About your monitor │17
Preset display modes
HDMI Preset display modes
Display Mode
Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(Horizontal /
Vertical)
VESA, 640 x 480 31.47 60.0 25.175 -/-
VESA, 640 x 480 37.5 75.0 31.5 -/-
VESA, 720 x 400 31.47 70.0 28.32 -/+
VESA, 800 x 600 37.88 60.0 40 +/+
VESA, 800 x 600 46.86 75.0 49.5 +/+
VESA, 1024 x 768 48.36 60.0 65 -/-
VESA, 1024 x 768 60.02 75.0 78.75 +/+
VESA, 1152 x 864 67.5 75.0 108 +/+
VESA, 1280 x 1024 63.98 60.0 108 +/+
VESA, 1280 x 1024 79.98 75.0 135 +/+
VESA, 1600 x 900 60 60 108 +/+
VESA, 1600 x 1200 75 60 162 +/+
VESA, 1680 x 1050 65.3 60 146.25 -/+
VESA, 1920 x 1080 67.5 60 148.5 +/+
VESA, 1920 x 1200 74.04 60 154 +/-
VESA, 2560 x 1440 88.79 60 241.5 +/-
VESA, 3840 x 2160 110.5 50 442 +/-
VESA, 3840 x 2160 135 60 594 +/-

18 │About your monitor
DisplayPort Preset display modes
Display Mode
Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(Horizontal /
Vertical)
VESA, 640 x 480 31.47 60 25.175 -/-
VESA, 640 x 480 37.5 75 31.5 -/-
VESA, 720 x 400 31.47 70 28.32 -/+
VESA, 800 x 600 37.88 60 40 +/+
VESA, 800 x 600 46.86 75 49.5 +/+
VESA, 1024 x 768 48.36 60 65 -/-
VESA, 1024 x 768 60.02 75 78.75 +/+
VESA, 1152 x 864 67.5 60 108 +/+
VESA, 1280 x 1024 63.98 75 108 +/+
VESA, 1280 x 1024 79.98 60 135 +/+
VESA, 1600 x 900 60 60 108 +/+
VESA, 1600 x 1200 75 60 162 +/+
VESA, 1680 x 1050 65.3 60 146.25 -/+
VESA, 1920 x 1080 67.5 60 148.5 +/+
VESA, 1920 x 1200 74.04 60 154 +/-
VESA, 2560 x 1440 88.79 60 241.5 +/-
VESA, 3840 x 2160 110.55 50 433.356 +/-
VESA, 3840 x 2160 133.313 60 533.25 +/-

About your monitor │19
PIP enabled (sub source)
Display Mode
Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(Horizontal /
Vertical)
VESA, 640 x 480 31.47 60 25.175 -/-
VESA, 640 x 480 37.5 75 31.5 -/-
VESA, 720 x 400 31.47 70 28.32 -/+
VESA, 800 x 600 37.88 60 40 +/+
VESA, 800 x 600 46.86 75 49.5 +/+
VESA, 1024 x 768 48.36 60 65 -/-
VESA, 1024 x 768 60.02 75 78.75 +/+
VESA, 1152 x 864 67.5 60 108 +/+
VESA, 1280 x 1024 63.98 75 108 +/+
VESA, 1280 x 1024 79.98 60 135 +/+
VESA, 1600 x 900 60 60 108 +/+
VESA, 1600 x 1200 75 60 162 +/+
VESA, 1680 x 1050 65.3 60 146.25 -/+
VESA, 1920 x 1080 67.5 60 148.5 +/+

20 │About your monitor
PBP enabled (main/sub source)
Display Mode
Horizontal
Frequency
(kHz)
Vertical
Frequency
(Hz)
Pixel Clock
(MHz)
Sync Polarity
(Horizontal /
Vertical)
VESA, 640 x 480 31.47 60 25.175 -/-
VESA, 640 x 480 37.5 75 31.5 -/-
VESA, 720 x 400 31.47 70 28.32 -/+
VESA, 800 x 600 37.88 60 40 +/+
VESA, 800 x 600 46.86 75 49.5 +/+
VESA, 1024 x 768 48.36 60 65 -/-
VESA, 1024 x 768 60.02 75 78.75 +/+
VESA, 1152 x 864 67.5 60 108 +/+
VESA, 1280 x 1024 63.98 75 108 +/+
VESA, 1280 x 1024 79.98 60 135 +/+
VESA, 1600 x 900 60 60 108 +/+
VESA, 1600 x 1200 75 60 162 +/+
VESA, 1680 x 1050 65.3 60 146.25 -/+
VESA, 1920 x 1080 67.5 60 148.5 +/+
VESA, 1920 x 1200 74.04 60 154 +/-
VSEA 1920 x 2160 133.29 60 277.25 +/-