Table of Contents
- Safety instructions
- About your monitor
- Setting up the monitor
- Operating your monitor
- Troubleshooting
- Regulatory information
DELL SE2723DS User Manual
Displayed below is the user manual for SE2723DS by DELL which is a product in the Computer Monitors category. This manual has pages.
Related Manuals
Monitor Model: SE2423DS/SE2723DS
Regulatory Model: SE2423DSc/SE2723DSc
Dell SE2423DS/SE2723DS 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 © 2022 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.
2022 – 03
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Monitor specifications . . . . . . . . . . . . . . . . . . . 14
Resolution specifications . . . . . . . . . . . . . . . . . . . . . . 16
Supported video modes . . . . . . . . . . . . . . . . . . . . . . . 16
Preset display modes . . . . . . . . . . . . . . . . . . . . . . . . 17
Electrical specifications. . . . . . . . . . . . . . . . . . . . . . . 19
Physical characteristics. . . . . . . . . . . . . . . . . . . . . . .20
Environmental characteristics . . . . . . . . . . . . . . . . . . . 21
Pin assignments . . . . . . . . . . . . . . . . . . . . . . 22
DisplayPort connector . . . . . . . . . . . . . . . . . . . . . . . 22
HDMI connector . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Plug-and-Play capability. . . . . . . . . . . . . . . . . . 24
LCD monitor quality and pixel policy . . . . . . . . . . . 24
Ergonomics. . . . . . . . . . . . . . . . . . . . . . . . . 24
4 │
Handling and moving your display . . . . . . . . . . . . . 26
Maintenance guidelines . . . . . . . . . . . . . . . . . . 27
Cleaning your monitor. . . . . . . . . . . . . . . . . . . . . . . . 27
Setting up the monitor...................... 28
Attaching the stand . . . . . . . . . . . . . . . . . . . . 28
Using the tilt and vertical extension. . . . . . . . . . . . 31
Tilt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Vertical Extension . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Connecting your monitor . . . . . . . . . . . . . . . . . 32
Connecting the HDMI cable. . . . . . . . . . . . . . . . . . . . . 32
Connecting the DisplayPort cable (optional). . . . . . . . . . . .32
Organizing cables . . . . . . . . . . . . . . . . . . . . . 33
Turn on the Monitor. . . . . . . . . . . . . . . . . . . . . 33
Securing your monitor using Kensington lock (optional) 34
Removing the monitor stand . . . . . . . . . . . . . . . 35
VESA wall mounting (optional) . . . . . . . . . . . . . . 37
Operating your monitor ..................... 38
Power on the monitor . . . . . . . . . . . . . . . . . . . 38
Using the control buttons . . . . . . . . . . . . . . . . . 38
Control buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Using the On-Screen Display (OSD) menu . . . . . . . . 40
Accessing the OSD menu . . . . . . . . . . . . . . . . . . . . . . 40
Menu and Power button lock . . . . . . . . . . . . . . . . . . . . 51
OSD warning messages . . . . . . . . . . . . . . . . . . . . . . .53
Setting the maximum resolution . . . . . . . . . . . . . 55
│ 5
Troubleshooting ........................... 56
Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Built-in diagnostics . . . . . . . . . . . . . . . . . . . . 57
Common problems . . . . . . . . . . . . . . . . . . . . .59
Regulatory information ..................... 64
FCC notices (U.S. Only) and other regulatory information 64
EU product database for energy label and product
information sheet . . . . . . . . . . . . . . . . . . . . . 64
Contacting Dell. . . . . . . . . . . . . . . . . . . . . . . 64
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.
NOTE: Before using the monitor, read the safety information that
is shipped with your monitor and printed on the product. Keep the
documentation at a secure location for future reference.
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.
WARNING: The possible long-term effect of listening to audio at
high volume through the headphones (on monitor that support it) may
cause damage to your hearing ability.
• Place the monitor on a solid surface and handle it carefully. The screen is fragile
and can be damaged if dropped or hit with a sharp object.
• Ensure 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.
• To avoid electric shock, do not attempt to remove any cover or touch the inside
of the monitor.
• Read these instructions carefully. Keep this document for future reference. Follow
all warnings and instructions marked on product.
• Certain monitors can be wall mounted using the VESA mount that is sold
separately. Ensure to use the correct VESA specifications as mentioned in the
wall mounting section of the User’s Guide.
For information on safety instructions, see the Safety, Environmental, and
Regulatory Information (SERI) document that is shipped with your monitor.
About your monitor │ 7
About your monitor
Package contents
The following table provides the list of components that are shipped with your
monitor. 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 may not be available in certain countries.
Component image Component description
Display
Stand riser
Stand base
VESA cover
8 │ About your monitor
Component image Component description
Power cable (varies by
country)
HDMI 1.4 cable (1.8 meters)
• Quick Setup Guide
• Safety, Environmental and
Regulatory Information
About your monitor │ 9
Product features
The Dell SE2423DS/SE2723DS monitor has an active matrix, Thin-Film Transistor
(TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor has the
following features:
• SE2423DS: 60.45 cm (23.80 in.) viewable area display (measured diagonally).
• SE2723DS: 68.47 cm (27 in.) viewable area display (measured diagonally).
• 2560 x 1440 resolution, with full-screen support for lower resolutions.
• AMD FreeSync Technology, which minimizes graphic distortions like screen
tearing and stuttering for smoother, fluid gameplay.
• Supports 48 Hz to 75 Hz (DisplayPort and HDMI) in FreeSync Mode.
• Supports audio line out to connect an external speaker.
• Color gamut of 99% sRGB (typical).
• Digital connectivity with DisplayPort and HDMI.
• 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.
• Power and OSD buttons lock.
• Security-lock slot (for Kensington locks, sold separately).
• Stand lock.
• ≤0.3 W in Standby Mode.
• TÜV-certified ComfortView Plus and Flicker-free.
• This monitor uses low blue light panel. When the monitor is reset to factory
settings or default setting (Preset mode: Standard) it works in compliance with
TÜV Rheinland (hardware solutions provider).
WARNING: The possible long-term effects of blue light emission from
the monitor may cause damage to the eyes, which includes but is not
limited to eye fatigue and digital eye strain. TÜV-certified ComfortView
Plus 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
2
1
Label Description Use
1 Function buttons To access the on-screen display
(OSD) menu. (For more information,
see Using the control buttons.)
2 Power On/Off button (with LED
indicator)
To turn the monitor on or off.
Solid white light indicates that
the monitor is turned on and
functioning normally. Blinking white
light indicates that the monitor is in
Standby Mode.
About your monitor │ 11
Back view
DELL SE2423DS
Flat Panel Monitor /液晶顯示器
Model No. /모델명/モデル番号/型號: SE2423DSc
/Daya Tegangan:100-240V 50/60Hz,1.0A
輸入電源:交流電壓100-240伏特,1.0安培,50/60赫茲
Made in China/中國製造
警語: 使用過度恐傷害視力。
www.dell.com/regulatory_compliance
R33037
RoHS
XXXXX
XXXXXX-XX
入力:100 V, 1.0 A, 50/60 Hz
デル・テクノロジーズ
XXXXXXXX
Q40G024N-700-XXA
XXXXXX-XXXX
R-R-E2K-SE2423DSc
신청인:DELL INC.(for Korea)
제조자:L&T Display Technology(Fujian)Ltd.(for Korea)
080-200-3800
IS 13252 (Part 1)/
IEC 60950-1
R-41082465
www.bis.gov.in
SVC Tag:
1234567
Express Service
Code:
123 456 789 0
S/N: CN-0N3TP2
-TV200-11J-001B
-A00
Date of Mfg/生产日期/生產日期: Jan. 2022
DELL SE2423DS
液晶显示器
型号: SE2423DS
输入电源:
100-240V 50/60Hz,1.0A
中国制造
Q40G024N-700-XXA
1
2
3
4
Label Description Use
1 Four (04) VESA mounting holes
(100 mm x 100 mm - behind the
VESA cover)
Wall-mount the monitor using VESA-
compatible wall-mount kit.
NOTE: Wall-mount kit is not
shipped with your monitor and
is sold separately.
2 Regulatory information label Lists the regulatory approvals.
3 Regulatory 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.
4 Stand thumbscrew Secures or releases the stand from the
monitor.
12 │ About your monitor
Side view
1
Label Description Use
1 Cable-management slot To organize cables.
About your monitor │ 13
Bottom view
123 4 5 6
Label Description Use
1 Security-lock slot
(based on Kensington
Security Slot)
Secure your monitor using a security lock
(purchased separately) to prevent unauthorized
movement of your monitor.
2 Power connector Connect the power cable (shipped with your
monitor).
3 HDMI 1.4 port (HDMI 1) Connect to your computer or external device
using a HDMI cable (shipped with your monitor).
4 HDMI 1.4 port (HDMI 2)
5 DisplayPort 1.2 Connect to your computer or external
device using a DisplayPort cable (purchased
separately).
6 Audio line-out port Connect to an external speaker (purchased
separately).*
*Audio line-out port does not support headsets.
14 │ About your monitor
Monitor specifications
Model SE2423DS SE2723DS
Screen type Active matrix-TFT LCD
Panel type In-Plane Switching Technology
Aspect ratio 16:9
Viewable image
Diagonal 604.50 mm (23.80 in.) 684.70 mm (26.96 in.)
Horizontal, Active Area 526.85 mm (20.74 in.) 596.74 mm (23.49 in.)
Vertical, Active Area 296.35 mm (11.67 in.) 335.66 mm (13.21 in.)
Area 156132.00 mm2 (242.01
in.2)
200301.75 mm2 (310.47
in.2)
Maximum resolution
and refresh rate
2560 x 1440 at 75 Hz
Pixel pitch 0.2058 mm x 0.2058 mm 0.2331 mm x 0.2331 mm
Pixel per inch (PPI) 123 109
Viewing angle
Horizontal
Vertical
178° (typical)
178° (typical)
Luminance output 300 cd/m² (typical) 350 cd/m² (typical)
Contrast ratio 1000 to 1 (typical)
Faceplate coating Anti-glare treatment of the front polarizer (3H) hard
coating
Backlight LED edgelight system
Color depth 16.70 million colors
Color gamut sRGB 99% (typical)
About your monitor │ 15
Model SE2423DS SE2723DS
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, we recommend that users
experiment with the different modes to find the setting
that is right for them.
Connectivity 2 x HDMI 1.4 ports (HDCP 1.4)
1 x DisplayPort 1.2 (HDCP 1.4)
1 x Audio line-out port
Bezel width (edge of monitor to active area)
Top
Left/Right
Bottom
5.43 mm
5.48 mm
16.15 mm
7.42 mm
7.42 mm
17.14 mm
Adjustability
Height adjustable stand
Tilt
Swivel
Pivot
100 mm
-5° to 21°
Not available
Not available
Cable management Yes
Dell Display Manager
compatibility
Dell Easy Arrange and other key features
Security Security-lock slot (for Kensington locks, sold separately)
16 │ About your monitor
Resolution specifications
Model SE2423DS/SE2723DS
Horizontal scan range 29 kHz to 140 kHz
Vertical scan range 48 Hz to 75 Hz
Maximum preset resolution 2560 x 1440
Supported video modes
Model SE2423DS/SE2723DS
Video display capabilities
(HDMI or DisplayPort)
480p, 576p, 720p, 1080p, 1080i (HDMI), 1440p
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 60.00 25.18 -/-
VESA, 640 x 480 37.50 75.00 31.50 -/-
IBM, 720 x 400 31.47 70.00 28.32 -/+
VESA, 800 x 600 37.88 60.00 40.00 +/+
VESA, 800 x 600 46.86 75.00 49.50 +/+
VESA, 1024 x 768 48.36 60.00 65.00 -/-
VESA, 1024 x 768 60.02 75.00 78.75 +/+
VESA, 1152 x 864 67.50 75.00 108.00 +/+
VESA, 1280 x 1024 63.98 60.00 108.00 +/+
VESA, 1280 x 1024 79.98 75.00 135.00 +/+
VESA, 1600 x 900 60.00 60.00 108.00 +/+
CTA, 1920 x 1080 67.50 60.00 148.50 +/+
VESA, 1920 x 1080 83.89 75.00 174.50 +/+
VESA, 2560x1440 88.79 60.00 241.50 +/-
VESA, 2560x1440 110.30 75.00 296.50 +/-
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 60.00 25.18 -/-
VESA, 640 x 480 37.50 75.00 31.50 -/-
IBM, 720 x 400 31.47 70.00 28.32 -/+
VESA, 800 x 600 37.88 60.00 40.00 +/+
VESA, 800 x 600 46.86 75.00 49.50 +/+
VESA, 1024 x 768 48.36 60.00 65.00 -/-
VESA, 1024 x 768 60.02 75.00 78.75 +/+
VESA, 1152 x 864 67.50 75.00 108.00 +/+
VESA, 1280 x 1024 63.98 60.00 108.00 +/+
VESA, 1280 x 1024 79.98 75.00 135.00 +/+
VESA, 1600 x 900 60.00 60.00 108.00 +/+
CTA, 1920 x 1080 67.50 60.00 148.50 +/+
VESA, 1920 x 1080 83.89 75.00 174.50 +/+
VESA, 2560x1440 88.79 60.00 241.50 +/-
VESA, 2560x1440 110.30 75.00 296.50 +/-
About your monitor │ 19
Electrical specifications
Model SE2423DS SE2723DS
Video input signals • HDMI 1.4, 600 mV for each differential line, 100 ohm
input impedance per differential pair
• DisplayPort 1.2, 600 mV for each differential line,
100 ohm input impedance per differential pair
AC input voltage/
frequency/current
100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 1.0 A
(typical)
Inrush current 120 V: 30 A (Maximum) at 0°C (cold start)
240 V: 60 A (Maximum) at 0°C (cold start)
Power consumption 0.3 W (Off mode)1
0.3 W (Standby Mode)1
18 W (On Mode)1
30 W (Maximum)2
16 W (Pon)3
50.76 kWh (TEC)3
0.3 W (Off mode)1
0.3 W (Standby Mode)1
20 W (On Mode)1
30 W (Maximum)2
16 W (Pon)3
50.76 kWh (TEC)3
1 As defined in EU 2019/2021 and EU 2019/2013.
2 Max brightness and contrast setting.
3 Pon: Power consumption of On Mode measured with reference to Energy Star
test 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 Dell 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.
20 │ About your monitor
Physical characteristics
Model SE2423DS SE2723DS
Signal cable type • Digital: DisplayPort, 20 pins (cable not included)
• Digital: HDMI, 19 pins
NOTE: Dell monitors are designed to work optimally with the video
cables that are shipped with your monitor. As Dell does not have
control over the different cable suppliers in the market, the type of
material, connector and process used to manufacture these cables,
Dell does not guarantee video performance on cables that are not
shipped with your Dell monitor.
Dimensions (with stand)
Height (extended) 461.77 mm (18.18 in.) 503.08 mm (19.81 in.)
Height (compressed) 361.77 mm (14.24 in.) 403.08 mm (15.87 in.)
Width 537.80 mm (21.17 in.) 611.58 mm (24.08 in.)
Depth 189.00 mm (7.44 in.) 205.00 mm (8.07 in.)
Dimensions (without stand)
Height 322.10 mm (12.68 in.) 364.40 mm (14.35 in.)
Width 537.80 mm (21.17 in.) 611.58 mm (24.08 in.)
Depth 54.57 mm (2.15 in.) 54.56 mm (2.15 in.)
Stand dimensions
Height 223.30 mm (8.79 in.) 223.30 mm (8.79 in.)
Width 245.00 mm (9.65 in.) 265.00 mm (10.43 in.)
Depth 189.00 mm (7.44 in.) 205.00 mm (8.07 in.)
Base 245.00 x 189.00 mm
(9.65 in. x 7.44 in.)
265.00 x 205.00 mm
(10.43 in. x 8.07 in.)
Weight
Weight with packaging 6.37 kg (14.04 lb) 7.88 kg (17.37 lb)
Weight with stand assembly
and cables
4.77 kg (10.52 lb) 5.91 kg (13.03 lb)
About your monitor │ 21
Model SE2423DS SE2723DS
Weight without stand
assembly (For wall mount or
VESA mount considerations -
no cables)
3.53 kg (7.78 lb) 4.36 kg (9.60 lb)
Weight of stand assembly 0.96 kg (2.12 lb) 1.21 kg (2.67 lb)
Front-frame gloss Black frame 2-4 gloss units
Environmental characteristics
Model SE2423DS SE2723DS
Compliant Standards
• RoHS-compliant.
• BFR/PVC reduce monitor (The circuit boards are made from BFR/PVC-free
laminates).
• Arsenic-free glass and Mercury-free for the panel only.
Temperature
Operating 0°C to 40°C (32°F to 104°F)
Non-operating • Storage: -20°C to 60°C (-4°F to 140°F)
• Shipping: -20°C to 60°C (-4°F to 140°F)
Humidity
Operating 10% to 80% (non-condensing)
Non-operating • Storage 5% to 90% (non-condensing)
• Shipping 5% to 90% (non-condensing)
Altitude
Operating
(maximum)
5,000 m (16,400 ft)
Non-operating
(maximum)
12,192 m (40,000 ft)
Thermal
dissipation
• 102.60 BTU/hour (Maximum)
• 61.56 BTU/hour (On Mode)
• 102.60 BTU/hour (Maximum)
• 68.40 BTU/hour (On Mode)
22 │ About your monitor
Pin assignments
DisplayPort connector
Pin
number 20-pin side of the connected
signal cable
1ML3 (n)
2 GND
3ML3 (p)
4 ML2 (n)
5 GND
6 ML2 (p)
7 ML1 (n)
8 GND
9 ML1 (p)
10 ML0 (n)
11 GND
12 ML0 (p)
13 GND
14 GND
15 AUX (p)
16 GND
17 AUX (n)
18 Hot Plug Detect
19 Re-PWR
20 +3.3 V DP_PWR
About your monitor │ 23
HDMI connector
Pin
number 19-pin side of the connected
signal cable
1 TMDS DATA 2+
2 TMDS DATA 2 SHIELD
3 TMDS DATA 2-
4TMDS DATA 1+
5TMDS DATA 1 SHIELD
6TMDS DATA 1-
7TMDS DATA 0+
8TMDS DATA 0 SHIELD
9TMDS DATA 0-
10 TMDS CLOCK+
11 TMDS CLOCK SHIELD
12 TMDS CLOCK-
13 CEC
14 Reserved (N.C. on device)
15 DDC CLOCK (SCL)
16 DDC DATA (SDA)
17 DDC/CEC Ground
18 +5 V POWER
19 HOT PLUG DETECT
24 │ About your monitor
Plug-and-Play capability
You can install the monitor in any Plug-and-Play compatible system. The monitor
automatically provides the computer system with its Extended Display Identification
Data (EDID) using Display Data Channel (DDC) protocols so the system can
configure itself and optimize the monitor settings. Most monitor installations are
automatic, you can select different settings if desired. For more information about
changing the monitor settings, see Operating your monitor.
LCD monitor quality and pixel policy
During the LCD Monitor manufacturing process, it is not uncommon for one or
more pixels to become fixed in an unchanging state which are hard to see and do
not affect the display quality or usability. For more information on Dell Monitor
Quality and Pixel Policy, see Dell Support site at www.dell.com/pixelguidelines.
Ergonomics
CAUTION: Improper or prolonged usage of keyboard may result in
injury.
CAUTION: Viewing the monitor screen for extended periods of time
may result in eye strain.
For comfort and efficiency, observe the following guidelines when setting up and
using your computer workstation:
• Position your computer so that the monitor and keyboard are directly in front of
you as you work. Special shelves are commercially available to help you correctly
position your keyboard.
• To reduce the risk of eye strain and neck, arm, back, or shoulder pain from using
the monitor for long period, we recommend you to:
1. Set the distance of the screen between 20 in. to 28 in. (50 cm - 70 cm) from
your eyes.
2. Blink frequently to moisten your eyes or wet your eyes with water after
prolonged usage of the monitor.
3. Take regular and frequent breaks for 20 minutes every two hours.
4. Look away from your monitor and gaze at a distant object at 20 feet away for
at least 20 seconds during the breaks.
5. Perform stretches to relieve tension in the neck, arm, back, and shoulders
during the breaks.
About your monitor │ 25
• Ensure that the monitor screen is at eye level or slightly lower when you are
sitting in front of the monitor.
• Adjust the tilt of the monitor, its contrast, and brightness settings.
• Adjust the ambient lighting around you (such as overhead lights, desk lamps, and
the curtains or blinds on nearby windows) to minimize reflections and glare on the
monitor screen.
• Use a chair that provides good lower-back support.
• Keep your forearms horizontal with your wrists in a neutral, comfortable position
while using the keyboard or mouse.
• Always leave space to rest your hands while using the keyboard or mouse.
• Let your upper arms rest naturally on both sides.
• Ensure that your feet are resting flat on the floor.
• When sitting, ensure that the weight of your legs is on your feet and not on the
front portion of your seat. Adjust your chair’s height or use a footrest if necessary
to maintain a proper posture.
• Vary your work activities. Try to organize your work so that you do not have to sit
and work for extended periods of time. Try to stand or get up and walk around at
regular intervals.
• Keep the area under your desk clear of obstructions and cables or power cords
that may interfere with comfortable seating or present a potential trip hazard.
oor
Feet at on the
and at
Wrists relaxed
below eye level
keyboard
of the user
Monitor screen at or
Monitor and
positioned
directly in front
26 │ About your monitor
Handling and moving your display
To ensure that the monitor is handled safely when lifting or moving it, observe the
following guidelines:
• Before moving or lifting the monitor, turn off your computer and the monitor.
• Disconnect all cables from the monitor.
• Place the monitor in the original box with the original packing materials.
• Hold the bottom edge and the side of the monitor firmly without applying
excessive pressure when lifting or moving the monitor.
• When lifting or moving the monitor, ensure that the screen is facing away from
you. Do not press on the display area to avoid any scratches or damage.
• When transporting the monitor, avoid any sudden shock or vibration to it.
• When lifting or moving the monitor, do not turn the monitor upside down while
holding the stand base or stand riser. It may result in accidental damage to the
monitor or cause personal injury.
About your monitor │ 27
Maintenance guidelines
Cleaning your monitor
WARNING: Using improper methods when cleaning the monitor can
result in a physical damage to the screen or the body of your Dell
monitor.
CAUTION: Read and follow the Safety instructions before cleaning the
monitor.
WARNING: Before cleaning the monitor, unplug the monitor power
cable from the electrical outlet.
For best practices, follow the instructions in the list below when unpacking,
cleaning, or handling your monitor:
• To clean the Dell monitor screen, lightly dampen a soft, clean cloth with water.
If possible, use a special screen-cleaning tissue or solution suitable for the Dell
monitor screen.
CAUTION: Do not use detergents or other chemicals such as benzene,
thinner, ammonia, abrasive cleaners, or compressed air.
CAUTION: Using chemicals for cleaning may cause changes in the
appearance of the monitor, such as color fading, milky film on the
monitor, deformation, uneven dark shade, and peeling of screen area.
WARNING: Do not spray the cleaning solution or even water directly on
the surface of the monitor. Doing so will allow liquids to accumulate at
the bottom of the display panel and corrode the electronics resulting
in permanent damage. Instead, apply the cleaning solution or water to
a soft cloth and then clean the monitor.
NOTE: Monitor damage due to improper cleaning methods and the use
of benzene, thinner, ammonia, abrasive cleaners, alcohol, compressed
air, detergent of any kind will lead to a Customer Induced Damage
(CID). CID is not covered under the standard Dell warranty.
• If you notice white powder when you unpack your monitor, wipe it off with a
cloth.
• Handle your monitor with care as a dark-colored monitor may get scratched
and show white scuff marks more than a light-colored monitor.
• To help maintain the best image quality on your monitor, use a dynamically
changing screen saver and turn off your monitor when not in use
28 │ Setting up the monitor
Setting up the monitor
Attaching the stand
NOTE: The stand is not installed at the factory when shipped.
NOTE: The following instructions are applicable only for the stand that
was shipped with your monitor. If you are attaching a stand that you
purchased from any other source, follow the setup instructions that
were included with the stand.
To attach the monitor stand:
1. Remove the stand riser and the stand base from the cushion that secures it.
2. Connect the stand base to the stand riser.
3. Open the screw handle on the stand base and tighten the screw to secure the
stand riser to the stand base.
4. Close the screw handle.
3
2
1
5. Open the protective cover on the monitor to access the slot on the monitor.
Setting up the monitor │ 29
6. Install the stand assembly on the monitor.
a. Slide the tabs on the stand assembly into the slots on the monitor
completely.
b. Open the screw handle on the stand riser and rotate it clockwise to secure
the stand assembly to the monitor.
c. Close the screw handle.
12
7. Align and insert the VESA cover into the VESA slot on the monitor, and then
press it down firmly to lock it into position.
30 │ Setting up the monitor
8. Hold the stand riser firmly with both hands and lift the monitor carefully, then
place it on a flat surface.
9. Remove the cover from the monitor.
Setting up the monitor │ 31
Using the tilt and vertical extension
NOTE: These values are applicable to the stand that was shipped with
your monitor. To set up with any other stand, see the documentation
that is shipped with the stand.
Tilt
With the stand attached to the monitor, you can tilt the monitor for the most
comfortable viewing angle.
5° 21°
NOTE: The stand is detached when the monitor is shipped from the
factory.
Vertical Extension
NOTE: The stand can be extended vertically up to 100 mm.
100 mm
32 │ Setting up the monitor
Connecting your monitor
WARNING: Before you begin any of the procedures in this section,
follow the Safety instructions.
NOTE: Dell monitors are designed to work optimally with Dell
supplied inbox cables. Dell does not guarantee the video quality and
performance if non-Dell cables are used.
NOTE: Route the cables through the cable-management slot before
connecting them.
NOTE: Do not connect all cables to the computer at the same time.
NOTE: The images are for the purpose of illustration only. The
appearance of the computer may vary.
To connect your monitor to the computer:
1. Turn off your computer and disconnect the power cable.
2. Connect your monitor to the computer with an HDMI cable or a DisplayPort
cable.
Connecting the HDMI cable
HDMI
HDMI
Connecting the DisplayPort cable (optional)
DP
DP
Setting up the monitor │ 33
3. Connect the power cable to the monitor and the wall outlet.
1
2
Organizing cables
Use the cable-management slot to route the cables connected to your monitor.
Turn on the Monitor.
Press the power button to turn on the monitor.
34 │ Setting up the monitor
Securing your monitor using Kensington lock (optional)
The security-lock slot is located at the bottom of the monitor. (see Security-lock
slot). Secure your monitor to a table using the Kensington security lock.
For more information on using the Kensington lock (sold separately), see the
documentation that is shipped with the lock.
NOTE: The image is for the purpose of illustration only. The appearance
of the lock may vary.
Setting up the monitor │ 35
Removing the monitor stand
NOTE: To prevent scratches on the LCD screen when removing the
stand, ensure that the monitor is placed on a soft surface and handle it
carefully.
NOTE: The following steps are specifically for removing the stand that
is shipped with your monitor. If you are removing a stand that you
purchased from any other source, follow the setup instructions that
are included with the stand.
To remove the stand:
1. Place the monitor on a soft cloth or cushion.
2. Open the screw handle on the stand riser and loosen the screw by turning it
anti-clockwise.
3. Slide the stand assembly out of the monitor.
12
36 │ Setting up the monitor
4. Lift the stand assembly up and away from the monitor.
Operating your monitor │ 37
VESA wall mounting (optional)
Press the notch on VESA cover and then lift it away from the monitor.
(Screw dimension: M4 x 10 mm).
See the documentation that shipped with the VESA-compatible wall mounting kit.
1. Place the monitor on a soft cloth or cushion at the edge of the desk.
2. Remove the monitor stand. See Removing the monitor stand.
3. Remove the four screws that secure the display back cover.
4. Install the mounting bracket from the wall mounting kit to the display.
5. To mount the monitor on the wall, see the documentation that shipped with the
wall mounting kit.
NOTE: For use only with UL or CSA or GS-listed wall mount bracket
with minimum weight or load bearing capacity of 14.12 kg (SE2423DS)
/ 17.44 kg (SE2723DS).
38 │ Operating your monitor
Operating your monitor
Power on the monitor
Press the button to turn on the monitor.
Using the control buttons
Use the control buttons at the bottom edge of the monitor to adjust the image
being displayed.
1 5
234
Operating your monitor │ 39
Control buttons
The following table describes the control buttons:
Control Buttons Description
1
Shortcut key/Preset
Modes
Use this button to choose from a list of preset
modes.
2
Shortcut key/
Brightness/Contrast
Use this button to adjust the brightness or the
contrast.
3
Menu
Use the Menu button to launch the On-Screen
Display (OSD) menu. See Accessing the OSD menu.
4
Exit
Use this button to go back to the main menu or exit
the OSD main menu.
5
Power
(with power light
indicator)
To turn the monitor on or off.
Solid white light indicates that the monitor is turned
on and functioning normally. Blinking white light
indicates that the monitor is in Standby Mode.
40 │ Operating your monitor
Using the On-Screen Display (OSD) menu
Accessing the OSD menu
NOTE: Any changes you make are automatically saved when you move
to another menu, exit the OSD menu, or wait for the OSD menu to
automatically close.
1. Press the button to display the OSD main menu.
Input Source
Color
Display
Others
Personalize
Menu
Brightness / Contrast
Dell 2X Monitor
75%
75%
2. Press the and buttons to move between the setting options. As you move
from one icon to another, the option is highlighted.
3. Press the or or button once to activate the highlighted option.
4. Press the and buttons to select the desired parameter.
5. Press the button and then use the and buttons, according to the
indicators on the menu, to make your changes.
6. Select the button to return to previous menu or button to accept and
return to previous menu.
Operating your monitor │ 41
Icon Menu and
Submenus
Description
Brightness/
Contrast
Uses this menu to adjust the brightness or the
contrast.
Input Source
Color
Display
Others
Personalize
Menu
Brightness / Contrast
Dell 2X Monitor
75%
75%
Brightness Adjusts the luminance of the backlight.
Press the button to increase the brightness
and press the button to decrease the
brightness (min. 0 / max. 100).
Contrast Adjusts the brightness first, and then adjusts the
contrast only if further adjustment is necessary.
Press the button to increase the contrast and
press the button to decrease the contrast
(min. 0 / max. 100).
The Contrast function adjusts the degree of
difference between darkness and lightness on the
monitor screen.
42 │ Operating your monitor
Icon Menu and
Submenus
Description
Input Source Uses the Input Source menu to select between
the different video signals that may be connected
to your monitor.
Input Source
Color
Display
Brightness / Contrast
Dell 2X Monitor
Input Source HDMI 1
DP
Auto Select On
HDMI 2
Reset Input Source
Others
Personalize
Menu
DP Selects DP input when you are using the DP
connector. Press the button to select the DP
input source.
HDMI 1 Selects HDMI 1 input when you are using the
HDMI 1 connector. Press the button to select
the HDMI 1 input source.
HDMI 2 Selects HDMI 2 input when you are using the
HDMI 2 connector. Press the button to select
the HDMI 2 input source.
Auto Select Choose Auto Select to scan for available input
signals.
Reset Input
Source
Select this option to restore default Input Source.
Color Use Color to adjust the color setting mode.
Input Source
Display
Color
Brightness / Contrast
Dell 2X Monitor
Others
Personalize
Menu
Preset Modes
Input Color Format
Reset Color
RGB
Standard
Operating your monitor │ 43
Icon Menu and
Submenus
Description
Preset Modes When you select Preset Modes, you can choose
Standard, Movie, FPS, RTS, RPG, Warm,
Cool, or Custom color from the list.
• Standard: Loads the monitor's default color
settings. This is the default preset mode.
• Movie: Loads color settings ideal for movies.
• FPS: Loads color settings ideal for First-Person
Shooter games.
• RTS: Loads color settings ideal for Real-time
Strategy games.
• RPG: Loads color settings ideal for Role-Playing
games.
• Warm: Increases the color temperature. The
screen appears warmer with a red/yellow tint.
• Cool: Decreases the color temperature. The
screen appears cooler with a blue tint.
• Custom Color: Allows you to manually adjust
the color settings.
Press the and buttons to adjust the three
colors (R, G, B) values and create your own
preset color mode.
Input Source
Display
Color
Brightness / Contrast
Dell 2X Monitor
Others
Personalize
Menu
Preset Modes
Input Color Format
Reset Color
Standard
FPS
RTS
Movie
RPG
Custom Color
Warm
Cool
44 │ Operating your monitor
Icon Menu and
Submenus
Description
Input Color
Format
Allows you to set the video input mode to:
• RGB: Select this option if your monitor is
connected to a computer or a media player that
supports RGB output.
• YCbCr: Select this option if your media player
supports only YCbCr output.
Input Source
Display
Color
Brightness / Contrast
Dell 2X Monitor
Preset Modes
Input Color Format
YCbCr
RGB
Reset Color
Others
Personalize
Menu
Hue Shifts the color of the video image to green or
purple. This is used to adjust the desired skin tone
color. Use the or button to adjust the hue
from 0 to 100.
NOTE: Hue adjustment is available only
when you select Movie, FPS, RTS, or
RPG mode.
Saturation Adjusts the color saturation of the video image.
Use the or button to adjust the saturation
from 0 to 100.
NOTE: Saturation adjustment is available
only when you select Movie, FPS, RTS,
or RPG mode.
Reset Color Resets your monitor’s color settings to the factory
default.
Operating your monitor │ 45
Icon Menu and
Submenus
Description
Display Uses the Display to adjust image.
Input Source
Others
Personalize
Menu
Color
Display
Brightness / Contrast
Dell 2X Monitor
Reset Display
Response Time
Sharpness
Aspect Ratio
>
Normal
>
50
>
16:9
Aspect Ratio Adjusts the image ratio to 16:9, 4:3 or 5:4.
Sharpness Makes the image look sharper or softer. Use the
or button to adjust the sharpness from 0 to
100.
Response Time Allows you to select between Normal, Fast or
Extreme.
Reset
Display
Resets all display settings to the factory default
values.
46 │ Operating your monitor
Icon Menu and
Submenus
Description
Menu Select this option to adjust the settings of the
OSD, such as the languages of the OSD, the
amount of time the menu remains on screen, and
so on.
Input Source
Menu
Color
Display
Others
Personalize
Brightness / Contrast
Dell 2X Monitor
Language
Transparency 20
Timer
Lock
English
20 s
Reset Menu
Disable
Language Sets the OSD display to one of the eight
languages: English, Spanish, French, German,
Brazilian Portuguese, Russian, Simplified
Chinese, or Japanese.
Transparency Select this option to change the menu
transparency by pressing the and buttons
from 0 to 100.
Timer OSD hold time: Sets the length of time the OSD
will remain active after the last time you pressed a
button.
Use the or button to adjust the slider in 1
second increments, from 5 to 60 seconds.
Lock Controls user access to adjustments.
Selects one of the following: Menu Buttons,
Power Button, Menu + Power Buttons, or
Disable.
Reset Menu Resets all OSD settings to the factory preset
values.
Operating your monitor │ 47
Icon Menu and
Submenus
Description
Personalize Select this option to adjust the settings of the
personalization.
Input Source
Color
Display
Dell 2X Monitor
Brightness / Contrast Shorout Key 1
Shorout Key 2
Power Button LED
Preset Modes
Brightness/Contrast
On in On Mode
Reset Personalization
Personalize
Others
Menu
Shortcut Key 1 Select one of the following: Preset Modes,
Brightness/Contrast, Input Source, or
Aspect Ratio to set the Shortcut Key 1.
Input Source
Color
Display
Dell 2X Monitor
Personalize
Menu
Others
Brightness / Contrast Shorout Key 1
Aspect Ratio
Reset Personalization
Power Button LED
Input Source
Shorout Key 2
Brightness / Contrast
Preset Modes
Shortcut Key 2 Select one of the following: Preset Modes,
Brightness/Contrast, Input Source, or
Aspect Ratio to set the Shortcut Key 2.
Input Source
Color
Display
Dell 2X Monitor
Brightness / Contrast
Shorout Key 1
Aspect Ratio
Power Button LED
Input Source
Shorout Key 2
Preset Modes
Reset Personalization
Personalize
Menu
Others
Brightness / Contrast
48 │ Operating your monitor
Icon Menu and
Submenus
Description
Power Button
LED
Allows you to set the power LED indicator On in
On Mode or Off in On Mode to save energy.
Input Source
Color
Display
Dell 2X Monitor
Personalize
Menu
Others
Brightness / Contrast
Shorout Key 1
Shorout Key 2
Power Button LED On in On Mode
Reset Personalization
Reset
Personalization
Resets all settings under the Personalize menu
to the default setting.
Others Select this option to adjust the OSD settings,
such as the DDC/CI, LCD conditioning, and so
on.
Input Source
Color
Display
Dell 2X Monitor
Brightness / Contrast Display Info
Reset Others
Self-Diagnostic
Factory Reset
LCD Conditioning
DDC/CI On
Service Tag
X3CXXX
Firmware
ABCDEFG
Personalize
Menu
Others
Others
Display Info Displays the monitor’s current settings.
Input Source
Color
Display
Dell 2X Monitor
Personalize
Menu
Others
Brightness / Contrast Display Info
Reset Others
Factory Reset
LCD Conditioning
DDC/CI
Service Tag
Current: 2560x1440, 60Hz
Input Source: HDMI 2
Model: Dell SE2X23DS
Firmware
Self-Diagnostic
Operating your monitor │ 49
Icon Menu and
Submenus
Description
DDC/CI DDC/CI (display data channel/command
interface) allows your monitor parameters
(brightness, color balance, and so on) to
be adjustable through the software on your
computer.
Disables this feature by selecting Off.
Enables this feature by selecting On for best user
experience and optimum performance of your
monitor.
Input Source
Color
Display
Dell 2X Monitor
Brightness / Contrast
DDC/CI On
Display Info
LCD Conditioning
Reset Others
Factory Reset
Service Tag
Firmware
Personalize
Menu
Others
Self-Diagnostic
LCD
Conditioning
Helps reduce minor cases of image retention.
Depending on the degree of image retention, the
program may take some time to run. To start LCD
conditioning, select On.
Firmware Displays the version of the firmware about the
display.
Service Tag Displays the service tag number of the display.
The Service Tag is a unique alphanumeric
identifier that allows Dell to identify the product
specifications and access warranty information.
NOTE: The Service Tag is also printed on
a label located at the back cover.
50 │ Operating your monitor
Icon Menu and
Submenus
Description
Self-Diagnostic Allows you to check if your monitor is functioning
properly.
Input Source
Color
Display
Dell 2X Monitor
Brightness / Contrast
Personalize
Menu
Others
Display Info
DDC/CI
LCD Conditioning
Firmware
Service Tag
Reset Others
Factory Reset
On
X3CXXX
ABCDEFG
Self-Diagnostic
Reset Others Resets all settings under the others setting menu
to the factory preset values.
Factory Reset Restores all preset values to the factory default
settings.
Operating your monitor │ 51
Menu and Power button lock
Prevents users to access or change OSD menu settings on the display.
By default, the Menu and Power button lock setting is disabled.
1 2 34 5
To access the lock menu, press and hold the Exit button (button 4) for four seconds.
A lock menu appears at the bottom right corner of the display.
NOTE: The lock menu can be accessed using this method when the
Menu and Power buttons are in unlocked state.
Dell 2X Monitor
Select option:
+
To access the unlock menu, press and hold the Exit button (button 4) for four
seconds. An unlock menu appears at the bottom right corner of the display.
NOTE: The unlock menu can be accessed when the Menu and Power
buttons are in locked state.
Select option:
Dell 2X Monitor
52 │ Operating your monitor
There are three lock options.
Menu Description
1 Menu Buttons When Menu Buttons is selected, the OSD menu
settings cannot be changed. All buttons are locked
except Power button.
2 Power Button When Power Button is selected, the display cannot
be turned off using the Power button.
3 Menu + Power
Buttons
When Menu + Power Buttons is selected, the OSD
menu settings cannot be changed and the Power
button is locked.
NOTE: To access the Lock or Unlock menu – Press and hold the Exit
button (button 4) for four seconds.
In the following scenarios, the icon appears at the center of the display:
• When Up button (button 1), Down button (button 2), Menu button (button
3), or Exit button (button 4) is pressed. This indicates the OSD menu buttons
are in lock state.
• When the Power button (button 5) is pressed. This indicates the Power
button is in lock state.
• When any one of the five buttons is pressed. This indicates OSD menu
buttons and the Power button is in lock state.
Unlocking the OSD menu and Power buttons：
1. Press and hold the Exit button (button 4) for four seconds. The unlock menu
appears.
2. Select the unlock icon to unlock the buttons on the display.
Operating your monitor │ 53
OSD warning messages
When the monitor does not support a particular resolution mode, the following
message is displayed:
The current input timing is not supported by the monitor display.
Please change your input timing to 2560x1440, 60Hz or any other
Dell 2X Monitor
NOTE: The message may be slightly dierent according to the
connected input signal.
This means that the monitor cannot synchronize with the signal that it is receiving
from the computer. See Resolution specifications for the Horizontal and Vertical
frequency ranges addressable by this monitor. The recommended resolution is
2560 x 1440.
Before the DDC/CI function is disabled, the following message is displayed:
The function of adjusting display setting using PC application will be
disabled.
Do you wish to disable DDC/CI function?
Yes No
Dell 2X Monitor
SE2X23DS
When the monitor enters the Standby Mode, the following message appears:
Dell
P2418HZ
Dell 2X Monitor
Going into Standby mode...
SE2X23DS
54 │ Operating your monitor
If no HDMI or DisplayPort cable is connected, a floating dialog box as shown below
appears. The monitor will enter Standby Mode after 4 minutes if left in this state.
Dell
P2418HZ
Dell 2X Monitor
No HDMI 1 Cable
The display will go into Standby mode in 4 minutes.
www.dell.com/SE2X23DS
?
SE2X23DS
1
or
Dell
P2418HZ
Dell 2X Monitor
No HDMI 2 Cable
The display will go into Standby mode in 4 minutes.
www.dell.com/SE2X23DS
?
SE2X23DS
2
or
Dell
P2418HZ
Dell 2X Monitor
No DP Cable
The display will go into Standby mode in 4 minutes.
www.dell.com/SE2X23DS
?
SE2X23DS
Troubleshooting │ 55
Setting the maximum resolution
NOTE: The steps may vary slightly depending on the version of
Windows you have.
To set the maximum resolution for the monitor:
In Windows 8.1:
1. For Windows 8.1, select the Desktop tile to switch to classic desktop.
2. Right-click on the desktop and click Screen Resolution.
3. If you have more than one monitor connected, ensure that you select
SE2X23DS.
4. Click the Screen Resolution dropdown list and select 2560 x 1440.
5. Click OK.
In Windows 10 and Windows 11:
1. Right-click on the desktop and click Display settings.
2. If you have more than one monitor connected, ensure to select SE2X23DS.
3. Click the Display Resolution dropdown list and select 2560 x 1440.
4. Click Keep changes.
If you do not see 2560 x 1440 as an option, you must update your graphics driver
to the latest version. Depending on your computer, complete one of the following
procedures:
If you have a Dell desktop or laptop:
• Go to https://www.dell.com/support, enter your service tag, and download
the latest driver for your graphics card.
If you are using a non-Dell computer (laptop or desktop):
• Go to the support site for your computer and download the latest graphic
drivers.
• Go to your graphics card website and download the latest graphic drivers.
56 │ Troubleshooting
Troubleshooting
WARNING: Before you begin working on the following steps, follow
the Safety instructions.
Self-Test
Your monitor provides a self-test feature that allows you to check if your monitor is
functioning properly. If your monitor and computer are properly connected but the
monitor screen remains dark, run the monitor self-test by performing the following
steps:
1. Turn off both your computer and the monitor.
2. Disconnect all video cables from the monitor. This way, the computer doesn’t
have to be involved.
3. Turn on the monitor.
If the monitor is working correctly, it detects that there is no signal and one of the
following message appears. While in self-test mode, the power LED remains white.
Dell
P2418HZ
Dell 2X Monitor
No HDMI 1 Cable
The display will go into Standby mode in 4 minutes.
www.dell.com/SE2X23DS
?
SE2X23DS
1
or
Dell
P2418HZ
Dell 2X Monitor
No HDMI 2 Cable
The display will go into Standby mode in 4 minutes.
www.dell.com/SE2X23DS
?
SE2X23DS
2
or
Troubleshooting │ 57
Dell
P2418HZ
Dell 2X Monitor
No DP Cable
The display will go into Standby mode in 4 minutes.
www.dell.com/SE2X23DS
?
SE2X23DS
NOTE: This dialog box appears even during normal operation and when
the video cable is disconnected or damaged.
4. Turn off your monitor and reconnect the video cable; Then, turn on your
computer and the monitor.
If your monitor remains dark after you reconnect the cables, check your video
controller and computer, as your monitor is functioning properly.
Built-in diagnostics
Your monitor has a built-in diagnostic tool. It helps you determine if the screen
abnormality that you are experiencing is an inherent problem with your monitor, or
with your computer and video card.
1 2 34 5
To run the built-in diagnostics:
1. Ensure that the screen is clean (no dust particles on the surface of the
screen).
2. Press the button (button 3) to launch the OSD menu.
3. Use front-panel buttons to select Others > Self-Diagnostic to initiate the
self-diagnostic process.
58 │ Troubleshooting
Input Source
Color
Display
Dell 2X Monitor
Brightness / Contrast
Personalize
Menu
Others
Display Info
DDC/CI
LCD Conditioning
Firmware
Service Tag
Reset Others
Factory Reset
On
X3CXXX
ABCDEFG
Self-Diagnostic
4. When initiated, a gray screen apppears. Inspect the screen for abnormalities.
5. Press on front-panel buttons. The color of the screen changes to red. Inspect
the screen for abnormalities.
6. Repeat step 5 to inspect the display in green, blue, black, white, and text
screens.
7. The test is complete when the text screen appears. To exit, press on front-
panel buttons again.
If you do not detect any screen abnormalities upon using the Built-in diagnostics
tool, the monitor is functioning properly. Check the video card and computer.
Troubleshooting │ 59
Common problems
The following table contains general information about common monitor problems
you might encounter and the possible solutions:
Common
Symptoms
What you
experience
Possible Solutions
No video of
power LED off
No picture Ensure that the video cable connecting
the monitor and the computer is properly
connected.
• Verify that the power outlet is
functioning properly using any other
electrical equipment.
• Ensure that the power button is pressed.
• Ensure that the correct input source
is selected through the Input Source
menu.
No video or
power LED on
No picture or no
brightness
• Increase brightness and contrast
controls using the OSD.
• Perform monitor self-test feature check.
• Check for bent or broken pins in the
video cable connector.
• Run the built-in diagnostics.
• Ensure that the correct input source is
selected via the Input Source menu.
Poor focus Picture is fuzzy,
blurry, or ghosting
• Eliminate video extension cables.
• Reset the monitor to factory settings
(Factory Reset).
• Change the video resolution to the
correct aspect ratio.
Shaky or jittery
video
Wavy picture or
fine movement
• Reset the monitor to factory settings
(Factory Reset).
• Check environmental factors.
• Relocate the monitor and test in another
room.
60 │ Troubleshooting
Common
Symptoms
What you
experience
Possible Solutions
Missing pixels LCD screen has
spots
• Cycle power On-Off.
• Pixel that is permanently off is a
natural defect that can occur in LCD
technology.
• For more information on Dell Monitor
Quality and Pixel Policy, see Dell Support
site at:
www.dell.com/pixelguidelines.
Stuck-on pixels LCD screen has
bright spots
• Cycle power On-Off.
• Pixel that is permanently off is a
natural defect that can occur in LCD
technology.
• For more information on Dell Monitor
Quality and Pixel Policy, see Dell Support
site at:
www.dell.com/pixelguidelines.
Brightness
problems
Picture too dim or
too bright
• Reset the monitor to factory settings
(Factory Reset).
• Adjust brightness and contrast controls
through OSD.
Geometric
distortion
Screen not
centered correctly
• Reset the monitor to factory settings
(Factory Reset).
• Adjust horizontal and vertical controls
through OSD.
Horizontal or
vertical Lines
Screen has one or
more lines
• Reset the monitor to factory settings
(Factory Reset).
• Perform monitor self-test feature check
and determine if these lines are also in
self-test mode.
• Check for bent or broken pins in the
video cable connector.
• Run the built-in diagnostics.
Troubleshooting │ 61
Common
Symptoms
What you
experience
Possible Solutions
Synchronization
problems
Screen is
scrambled or
appears torn
• Reset the monitor to factory settings
(Factory Reset).
• Perform monitor self-test feature check
to determine if the scrambled screen
appears in self-test mode.
• Check for bent or broken pins in the
video cable connector.
• Restart the computer in the safe mode.
Safety related
issues
Visible signs of
smoke or sparks
• Do not perform any troubleshooting
steps.
• Contact Dell immediately.
Intermittent
problems
Monitor
malfunctions on
and off
• Ensure that the video cable connecting
the monitor to the computer is
connected properly and is secure.
• Reset the monitor to factory settings
(Factory Reset).
• Perform monitor self-test feature check
to determine if the intermittent problem
occurs in self-test mode.
Missing color Picture missing
color
• Perform monitor self-test feature check.
• Ensure that the video cable connecting
the monitor to the computer is
connected properly and is secure.
• Check for bent or broken pins in the
video cable connector.
Wrong color Picture color not
good
• Try different Preset Modes in Color
settings OSD. Adjust R/G/B value in
Custom Color in Color settings OSD.
• Change the Input Color Format to
RGB or YCbCr in the Color settings
OSD.
• Run the built-in diagnostics.
62 │ Troubleshooting
Common
Symptoms
What you
experience
Possible Solutions
Image retention
from a static
image left on
the monitor for
a long period of
time
Faint shadow from
the static image
displayed appears
on the screen
• Set the screen to turn off after a few
minutes of screen idle time. These can
be adjusted in Windows Power Options
or Mac Energy Saver setting.
• Alternatively, use a dynamically changing
screensaver.
Product specific problems
Specific
Symptoms
What you experience Possible Solutions
Screen image is too
small
Image is centered on
screen, but does not fill
entire viewing area
• Check the Aspect Ratio setting
in the Display settings OSD.
• Reset the monitor to factory
settings (Factory Reset).
Cannot adjust the
monitor with the
buttons on the
bottom of the panel
OSD does not appear
on the screen
• Turn off the monitor, unplug the
power cord, plug it back, and
then turn on the monitor.
• Check if the OSD menu is
locked. If yes, press and hold
the button 5 for four seconds to
unlock.
No input signal
when user controls
are pressed
No picture, the LED
light is white
• Check the signal source. Ensure
the computer is not in Standby
Mode by moving the mouse
or pressing any key on the
keyboard.
• Check if the video cable is
plugged in properly. Disconnect
and reconnect the video cable if
necessary.
• Reset the computer or video
player.
Troubleshooting │ 63
Specific
Symptoms
What you experience Possible Solutions
The picture does
not fill the entire
screen
The picture cannot fill
the height or width of
the screen
• Due to different video formats
(aspect ratio) of DVDs, the
monitor may display in full
screen.
• Run the built-in diagnostics.
No video at HDMI
or DisplayPort
When connected to
some dongle or docking
device at the port,
there is no video when
unplugging or plugging
the cable from the
notebook
• Unplug the HDMI or DisplayPort
cable from dongle or docking
device, then plug the docking
HDMI or DisplayPort cable to the
notebook.
64 │ Regulatory information
Regulatory information
FCC notices (U.S. Only) and other regulatory information
For FCC notices and other regulatory information, see the regulatory compliance
website located at www.dell.com/regulatory_compliance.
EU product database for energy label and product information
sheet
SE2723DS: https://eprel.ec.europa.eu/qr/1114970
Contacting Dell
To contact Dell for sales, technical support, or customer service issues, see
www.dell.com/contactdell.
NOTE: Availability varies by country and product, and some services
may not be available in your country.
NOTE: If you do not have an active Internet connection, you can find
contact information on your purchase invoice, packing slip, bill, or Dell
product catalog.