Dell E2221HN Operation & User’s Manual

Regulatory Model: E2221HNf, E2421HNf

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 of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners. 2020 - 12 Rev. A02

Contents About your monitor ...........................................5 Package contents ..................................................... 5 Product features ....................................................... 6 Identifying features and controls ................................ 7 Monitor specifications ............................................... 9 Pin assignments .......................................................15 Plug and play capability .............................................16 LCD monitor quality and pixel policy ...........................16 Maintenance guidelines .............................................16 Setting up the monitor .....................................17 Connecting the stand ................................................17 Connecting your monitor ...........................................19 Organizing cables .....................................................19 Removing the stand ................................................. 20 Operating your monitor ....................................23 Turning on the monitor ............................................. 23 Using the front panel controls ................................... 23 Using the On-Screen Display (OSD) menu .................. 25 Setting up display resolution on your monitor ............. 37 Using tilt ................................................................. 39

Troubleshooting ...............................................40 Self-test ................................................................. 40 Built-in diagnostics ...................................................41 Common problems ................................................... 42 Product-specific problems ........................................ 44 Appendix .........................................................45 FCC Notices (U.S. Only) and Other Regulatory Information ............................................................. 45 Contact Dell ............................................................ 45 EU product database for energy label and product information sheet .................................................... 45

About your monitor Package contents Your monitor ships with the components indicated in the table. Ensure that you have received all the components and see Contact Dell if anything is missing. NOTE: Some items may be optional and may not ship with your monitor. Some features may not be available in certain countries. NOTE: To set up Stand from any other source, refer to the documentation comes with the Stand for instruction. Component image Component description Display Stand riser Stand base VESA™ Screw Cover Power cable (varies by country)

Component image Component description VGA cable (EMEA and Japan region) HDMI cable • Quick Start Guide • Safety, Environmental, and Regulatory Information Product features The Dell E2221HN/E2421HN flat panel monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) Panel with LED backlight. The monitor features include : • E2221HN: 54.68 cm (21.5 in.) diagonal viewable area display (measured diagonally). 1920 x 1080 resolution, with full-screen support for lower resolutions. • E2421HN: 60.47 cm (23.8 in.) diagonal viewable area display (measured diagonally). 1920 x 1080 resolution, with full-screen support for lower resolutions. • E2221HN: Viewing angles of 160 degrees in vertical and 170 degrees in horizontal directions. • E2421HN: Wide viewing angles of 178 degrees in vertical and horizontal directions. • Dynamic contrast ratio (1,000:1). • Digital connectivity with HDMI. • Plug and play capable if supported by your computer. • On-Screen Display (OSD) adjustments for easy setup and screen optimization. • ≤ 0.3 W in Standby Mode. • Optimize eye comfort with a flicker-free screen. • Possible long-term effects if blue light emission from the monitor may cause damage to the eyes, including eye fatigue or digital eye strain. ComfortView feature to reduce risk of eye strain from high blue light emission. • Security-lock slot. • Arsenic-free glass and Mercury-free for panel only. • BFR/PVC-Reduced (Its circuit boards are made from BFR/PVC-free laminates). • Meets NFPA 99 leakage current requirement. • TCO-certified display. • EPEAT registered where applicable. EPEAT registration varies by country. See https://www.epeat.net for registration status by country. • RoHS Compliant. • Energy Star® Certified.

Identifying features and controls Front view 1 2 Label Description Use 1 Function buttons To access the OSD menu and change the settings if required. For more information, see Using the front panel controls. 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. Back view With monitor stand 5 4 Without monitor stand 1 3 2

Label Description Use 1 Security-lock slot To secure the monitor using a security lock (purchased separately). 2 Barcode, serial number, and service tag label See this label if you need to contact Dell for technical support. The Service Tag is a enables Dell service technicians to identify the hardware components in your computer and access warranty information. 3 Regulatory information List the regulatory approvals. 4 Cable-management slot To organize the cables. 5 Stand release button Release stand from monitor. Side view Bottom view, without monitor stand 1 3 2 Label Description Use 1 Power port To connect the monitor power cable. 2 HDMI port For connection to your computer using HDMI cable. 3 VGA port For connection to your computer using VGA cable.

Monitor specifications Model E2221HN E2421HN Screen type Active matrix-TFT LCD Active matrix-TFT LCD Panel type TN In-Plane Switching Viewable area Diagonal 546.86 mm (21.5 in.) 604.70 mm (23.8 in.) Active area Horizontal Vertical Area 476.64 mm (18.77 in.) 268.11 mm (10.56 in.) 1277.92 cm² (198.21 in.²) 527.04 mm (20.75 in.) 296.46 mm (11.67 in.) 1562.46 cm² (242.15in.²) Pixel pitch 0.2482 mm x 0.2482 mm 0.2745 mm x 0.2745 mm Pixel per inch (PPI) 102 92 Viewing angle Horizontal Vertical 170° (typical) 160° (typical) 178° (typical) 178° (typical) Brightness 250 cd/m² (typical) 250 cd/m² (typical) Contrast ratio 1,000 to 1 (typical) 1,000 to 1 (typical) Faceplate coating Anti-glare with 3H hardness Anti-glare with 3H hardness Backlight LED light bar system LED light bar system Response time Normal mode Fast mode 5 ms - 8 ms 5 ms Color depth 16.7 million colors 16.7 million colors Color gamut 72% (CIE1931)/83% (CIE1976) 72% (CIE1931)/83% (CIE1976) Dell display manager compatibility Yes Yes Connectivity 1 x HDMI 1.4, 1 x VGA 1 x HDMI 1.4, 1 x VGA Bezel width (edge of monitor to active area) 17.8 mm (Top) 17.8 mm (Left/Right) 17.8 mm (Bottom) 11.8 mm (Top) 11.8 mm (Left/Right) 18.2 mm (Bottom) Security Security-lock slot for cable lock (optional purchase) Security-lock slot for cable lock (optional purchase) Tilt angle -5° to 21° -5° to 21°

Resolution specifications Model E2221HN E2421HN Horizontal scan range 30 kHz to 83 kHz (automatic) 30 kHz to 83 kHz (automatic) Vertical scan range 56 Hz to 76 Hz (automatic) 56 Hz to 76 Hz (automatic) Maximum preset resolution 1920 x 1080 @ 60 Hz 1920 x 1080 @ 60 Hz Preset display modes Display mode Horizontal frequency (kHz) Vertical frequency (Hz) Pixel clock (MHz) Sync polarity (Horizontal/Vertical) VESA, 720 x 400 31.5 70.1 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 x1024 64.0 60.0 108.0 +/+ VESA, 1280 x1024 80.0 75.0 135.0 +/+ VESA, 1600 x 900 60.0 60.0 108.0 +/+ VESA, 1920 x1080 67.5 60.0 148.5 +/+

Electrical specifications Model E2221HN Video input signals • Analog RGB: 0.7 V ± 5 %, 75 Ω input impedance • HDMI 1.4 (HDCP 1.2), 600 mV for each differential line, 100 Ω input impedance per differential pair Synchronization input signals Separate horizontal and vertical synchronizations, polarity-free TTL level, SOG (Composite SYNC on green) AC input voltage/ frequency/current 100 VAC to 240 VAC/50 Hz or 60 Hz ± 3 Hz/0.7 A Inrush current 30 A (120 V AC Input) 60 A (240 V AC Input) Power Consumption 0.2 W (Off Mode) 1 0.3 W (Standby Mode)1 9.7 W (On Mode)1 16 W (Max) 2 11.21 W (Pon) 3 35.16 kWh (TEC)3 Model E2421HN Video input signals • Analog RGB: 0.7 V ± 5 %, 75 Ω input impedance • HDMI 1.4 (HDCP 1.2), 600 mV for each differential line, 100 Ω input impedance per differential pair Synchronization input signals Separate horizontal and vertical synchronizations, polarity-free TTL level, SOG (Composite SYNC on green) AC input voltage/ frequency/current 100 VAC to 240 VAC/50 Hz or 60 Hz ± 3 Hz/0.8 A Inrush current 30 A (120 V AC Input) 60 A (240 V AC Input) Power Consumption 0.2 W (Off Mode)1 0.3 W (Standby Mode)1 10.2 W (On Mode)1 20 W (Max)2 12.34 W (Pon)3 38.52 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 as defined in Energy Star 8.0 version. TEC: Total energy consumption in kWh as defined in Energy Star 8.0 version.

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. NOTE: This monitor is ENERGY STAR certified. This product qualifies for ENERGY STAR in the factory default settings which can be restored by "Factory Reset" function in the OSD menu. Changing the factory default settings or enabling other features may increase power consumption that could exceed the ENERGY STAR specified limit.

Physical characteristics Model E2221HN/E2421HN Signal cable type Analog Digital D-Sub (VGA), 15 pins (cable is included for EMEA and JPN region only); 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) E2221HN E2421HN Height 397.30 mm (15.64 in.) 419.70 mm (16.52 in.) Width 512.20 mm (20.17 in.) 550.60 mm (21.68 in.) Depth 171.00 mm (6.73 in.) 171.00 mm (6.73 in.) Dimensions (without stand) E2221HN E2421HN Height 303.70 mm (11.96 in.) 326.50 mm (12.85 in.) Width 512.20 mm (20.17 in.) 550.60 mm (21.68 in.) Depth 52.40 mm (2.06 in.) 52.40 mm (2.06 in.) Stand dimensions E2221HN E2421HN Height 176.90 mm (6.96 in.) 176.90 mm (6.96 in.) Width 200.00 mm (7.87 in.) 200.00 mm (7.87 in.) Depth 171.00 mm (6.73 in.) 171.00 mm (6.73 in.) Weight E2221HN E2421HN Weight with packaging 4.90 kg (10.80 lb) 5.95 kg (13.12 lb) With stand assembly and cables 3.51 kg (7.74 lb) 4.27 kg (9.41 lb) Without stand assembly and cables 2.70 kg (5.95 lb) 3.25 kg (7.17 lb) Weight of stand assembly 0.44 kg (0.97 lb) 0.59 kg (1.30 lb)

Environmental characteristics Model E2221HN/E2421HN Temperature: Operating 0°C to 40°C (32°F to 104°F) Non-operating: Storage Shipping -20°C to 60°C (-4°F to 140°F) Humidity: Operating 10% to 80% (non-condensing) Non-operating: Storage Shipping 5% to 90% (non-condensing) Altitude: Operating (maximum) 5,000 m (16,400 ft) Non-operating (maximum) 12,192 m (40,000 ft) Model E2221HN E2421HN Thermal dissipation 54.59 BTU/hour (maximum) 44.36 BTU/hour (typical) 68.24 BTU/hour (maximum) 51.18 BTU/hour (typical)

Pin assignments D-Sub 15-pin connector HDMI 19-pin connector Pin Number Signal Assignment 1 Video-Red 2 Video-Green 3 Video-Blue 4 GND 5 Self-test 6 GND-R 7 GND-G 8 GND-B 9 DDC +5 V 10 GND-sync 11 GND 12 DDC data 13 H-sync 14 V-sync 15 DDC clock Pin Number Signal Assignment 1 TMDS DATA 2+ 2 TMDS DATA 2 SHIELD 3 TMDS DATA 2- 4 TMDS DATA 1+ 5 TMDS DATA 1 SHIELD 6 TMDS DATA 1- 7 TMDS DATA 0+ 8 TMDS DATA 0 SHIELD 9 TMDS 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

Plug and play capability You can install the monitor in any Plug and Play-compatible system. The monitor automatically provides the computer with its Extended Display Identification Data (EDID) using Display Data Channel (DDC) protocols so the computer can configure itself and optimize the monitor settings. Most monitor installations are automatic, you can select different settings as required. 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 normal 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 about Dell Monitor Quality and Pixel Policy, see Dell Support site at https://www.dell.com/support/monitors. Maintenance guidelines Cleaning your monitor WARNING: Before cleaning the monitor, unplug the monitor power cable from the electrical outlet. CAUTION: Read and follow the Safety instructions before cleaning the monitor. For best practices, follow these instructions while unpacking, cleaning, or handling your monitor: • To clean your screen, lightly dampen a soft and clean cloth with water. If possible, use a special screen-cleaning tissue or solution suitable for the anti-static coating. Do not use benzene, thinner, ammonia, abrasive cleaners, or compressed air. • Use a lightly-dampened cloth to clean the monitor. Avoid using detergent of any kind as some detergents leave a milky film on the monitor. • If you notice white powder when you unpack your monitor, wipe it off with a cloth. • Handle your monitor with care as the black-colored monitor may get scratched. • 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.

Setting up the monitor Connecting the stand NOTE: The stand is not attached when the monitor is shipped from the factory. NOTE: The following procedure is applicable for the stand that shipped with your monitor. To attach the monitor stand: E2221HN 1. Assemble the stand riser to stand base. a. Place the monitor stand base on a stable table top. b. Slide the monitor stand body in the correct direction down onto the stand base until it clicks into place. 2. Attach the stand assembly to the monitor. a. Place the monitor on a soft cloth or cushion near the edge of desk. b. Align the stand assembly bracket to the monitor groove. c. Insert the bracket towards monitor until it locks in place. d. Attach VESA cover.

Connecting the stand NOTE: The stand is not attached when the monitor is shipped from the factory. NOTE: The following procedure is applicable for the stand that shipped with your monitor. To attach the monitor stand: E2421HN 1. Assemble the stand riser to stand base. a. Place the monitor stand base on a stable table top. b. Slide the monitor stand body in the correct direction down onto the stand base until it clicks into place. 2. Attach the stand assembly to the monitor a. Place the monitor on a soft cloth or cushion near the edge of desk. b. Align the stand assembly bracket to the monitor groove. c. Insert the bracket towards monitor until it locks in place. d. Attach VESA cover.

Connecting your monitor WARNING: Before you begin any of the procedures in this section, follow the Safety instructions. NOTE: Do not connect all cables to the computer at the same time. It is recommended to route the cables through the cable-management slot before you connect them to the monitor. NOTE: Dell monitors are designed to work optimally with Dell supplied inbox cables. Dell does not guarantee the video quality and performance when using non-Dell cables. To connect your monitor to the computer: 1. Turn off your computer and disconnect the power cable. 2. Connect HDMI or VGA cable from your monitor to the computer. Connecting HDMI/VGA cable Organizing cables Use the cable-management slot to route the cables connected to your monitor.

Removing the stand NOTE: To prevent scratches on the screen when removing the stand, ensure that the monitor is placed on a soft and clean surface. NOTE: The following procedure is applicable for the stand that shipped with your monitor. To remove the stand: E2221HN 1. a. Place the monitor on a soft cloth along the desk. b. Remove VESA cover to access the release button. 2. a. Use a long and thin screwdriver to push the release latch located in a hole just above the stand. b. Once the latch is released, remove the base away from the monitor. c. Press down on the quick release tab latch on the bottom of the base to separate base from stand riser.

Removing the stand NOTE: To prevent scratches on the screen when removing the stand, ensure that the monitor is placed on a soft and clean surface. NOTE: The following procedure is applicable for the stand that shipped with your monitor. To remove the stand: E2421HN 1. a. Place the monitor on a soft cloth along the desk. b. Remove VESA cover to access the release button. 2. a. Use a long and thin screwdriver to push the release latch located in a hole just above the stand. b. Once the latch is released, remove the base away from the monitor. c. Press down on the quick release tab latch on the bottom of the base to separatebase from stand riser.

Wall Mounting (Optional) (Screw dimension: M4 x 10 mm). Refer to the instructions that come with the VESA-compatible base mounting kit. 1. Place the monitor panel on a soft cloth or cushion on a stable flat table. 2. Remove the stand. 3. Use a screwdriver to remove the four screws securing the plastic cover. 4. Attach the mounting bracket from the wall mounting kit to the LCD. 5. Mount the LCD on the wall by following the instructions that came with the base mounting kit. NOTE: For use only with UL or CSA or GS-listed wall-mount bracket with minimum weight/ load bearing capacity of 10.80 kg (23.80 lb) for E2221HN, 13.00 kg (28.66 lb) for E2421HN.

Operating your monitor Turning on the monitor Press the button to turn on the monitor. Using the front panel controls Use the control buttons at the bottom edge of the monitor to adjust the image being displayed. 1 2 3 4 5 The following table describes the control buttons: Control buttons Description 1 Preset modes Use this button to choose from a list of preset modes. 2 Brightness/Contrast For direct access to the Brightness and Contrast menu. 3 Menu To launch the On-Screen Display (OSD) menu, or to access the list of items/options of a menu item. For more information, see Accessing the OSD menu. 4 Exit To exit or return to the OSD main menu. 5 Power button (with power-status light) 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.

OSD controls Use the buttons on the bottom edge of the monitor to adjust the image settings. 1 2 3 4 Control buttons Description 1 Up Use the Up button to increase values or move up in a menu. 2 Down Use the Down button to decrease values or move down in a menu. 3 OK Use the OK button to confirm your selection in a menu. 4 Back Use the Back button to go back to the previous menu.

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 close automatically. 1. Press the button to display the OSD main menu. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source 75% 75% Color Display Menu Personalize Others 2. Press the and buttons to move between the setting options. As you move from one icon to another, the option name is highlighted. 3. Press the button once to activate the highlighted option. 4. Press and button to select the desired parameter. 5. Press and then use the and buttons, according to the indicators on the menu, to make your changes. 6. Select the button to return to the main menu.

Icon Menu and submenus Description Brightness/ Contrast Use this option to control the brightness or contrast settings. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source 75% 75% Color Display Menu Personalize Others Brightness 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 Adjust the brightness first, and then adjust 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 screen.

Icon Menu and submenus Description Auto Adjust Use this option to activate automatic setup and adjust menu. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Press to adjust the screen automatically The following dialog appears on a black screen as the monitor self- adjusts to the current input: Auto Adjustment in Progress... Auto Adjust allows the monitor to self-adjust to the incoming video signal. After using Auto Adjustment, you can further tune your monitor by using the Pixel Clock (Coarse) and Phase (Fine) controls under Display. NOTE: Auto Adjust does not occur if you press the button while there are no active video input signals or attached cables. This option is available only when you are using the analog (VGA) connector.

Icon Menu and submenus Description Input Source Use the Input Source menu to switch between the different video signals that may be connected to your monitor. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color VGA HDMI Auto Select Reset Input Source Display Menu Personalize Others On VGA Push to select the VGA input source when using VGA connector. HDMI Push to select the HDMI input source when using HDMI connector. Auto Select Select 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. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Preset Modes Input Color Format Reset Color Standard RGB

Icon Menu and submenus Description Preset Modes When you select Preset Modes, you can choose Standard, ComfortView, Warm, Cool, Custom Color from the list. • Standard: Load the monitor's default color settings. This is the default preset mode. • ComfortView: Decreases the level of blue light emitted fromthe screen to make viewing more comfortable for your eyes. NOTE: To reduce the risk of eye strain and neck/arm/back/ shoulders pain from using the monitor for long periods of time, we suggest that you: - Set the screen about 20~28 in. (50~70 cm) from your eyes. - Blink frequently to moisten or lubricate your eyes. - Take regular 20-minute breaks every two hours. - Look away from your monitor and gaze at a distant object at 20 feet away for at least 20 seconds during the breaks. - Perform stretches to relieve tension in the neck/arm/back/ shoulders during the breaks. • Warm: Increase the color temperature. The screen appears warmer with a red/yellow tint. • Cool: Decrease 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. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Preset Modes Input Color Format Reset Color Standard Warm Cool ComfortView Custom Color

Icon Menu and submenus Description Input Color Format Allow you to set the video input mode to: • RGB: Select this option if your monitor is connected to a computer or DVD player using the HDMI cable. • YPbPr: Select this option if your DVD player supports only YPbPr output. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Preset Modes Input Color Format Reset Color YPbPr RGB Reset Color Reset your monitor color settings to the factory settings. Display Use the display to adjust image. Dell 22 Monitor Brightness / Contrast Auto Adjust Input Source Color Aspect Ratio Horizontal Position Vertical Position Sharpness Pixel Clock Phase Reset Display Display Menu Personalize Others Wide 16:9 50 E2221HN E2421HN Dell XX Monitor Brightness / Contrast Auto Adjust Input Source Color Aspect Ratio Horizontal Position Vertical Position Sharpness Pixel Clock Phase Reset Display Display Menu Personalize Others Wide 16:9 50 Dell 24 Monitor Brightness / Contrast Auto Adjust Input Source Color Aspect Ratio Horizontal Position Vertical Position Sharpness Pixel Clock Phase Response Time Display Menu Personalize Others Wide 16:9 50 Normal

Icon Menu and submenus Description E2421HN Dell XX Monitor Brightness / Contrast Auto Adjust Input Source Color Aspect Ratio Horizontal Position Vertical Position Sharpness Pixel Clock Phase Reset Display Display Menu Personalize Others Wide 16:9 50 Dell 24 Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Reset Display Aspect Ratio Adjust the image ratio to Wide 16:9, 4:3, or 5:4. Horizontal Position (VGA input only) Use or to move image left and right. Minimum is '0' (-). Maximum is '100' (+). Vertical Position (VGA input only) Use the or to move image up and down. Minimum is '0' (-). Maximum is '100' (+). Sharpness This feature can make the image look sharper or softer. Use or to adjust the sharpness from 0 to 100. Pixel Clock (VGA input only) The Pixel Clock feature enables you to adjust image quality on your monitor according to your preference. Use or buttons to adjust for best image quality. Phase (VGA input only) If satisfactory results are not obtained using the Phase adjustment, use the Pixel Clock (coarse) adjustment and then use Phase (fine), again. Response Time Allow you to select between Normal (8 ms), and Fast (5 ms). Reset Display Select this option to restore default display settings.

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. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Language Transparency Timer Lock English 20 20 s Reset Menu Disable Language Language options set 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 or 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 or to adjust the slider in 1 second increments, from 5 to 60 seconds. Lock Controls user access to adjustments. When Lock is selected, no user adjustments are allowed. All keys are locked except key. To unlock, please use one of the following options : 7. Press the menu key takes you directly to the OSD menu to unlock. 8. Press and hold key of the monitor for 4 seconds to unlock. Reset Menu Select this option to restore default menu settings.

Icon Menu and submenus Description Personalize Selecting this option allows you to set two shortcut keys and power LED indicator function. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Shortcut Key 1 Shortcut Key 2 Power Button LED Reset Personalization Preset Modes Brightness / Contrast On in On Mode Shortcut Key 1 Allow you to select one of the following: Preset Modes, Brightness/Contrast, Auto Adjust, Input Source, Aspect Ratio, to set the shortcut key 1. Shortcut Key 2 Allow you to select one of the following: Preset Modes, Brightness/Contrast, Auto Adjust, Input Source, Aspect Ratio, to set the shortcut key 2. Power Button LED Allow you to set the power LED indicator On in On Mode or Off in On Mode to save energy. Reset Personalization Allow you to restore shortcut key to the default setting.

Icon Menu and submenus Description Others Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Display Info DDC/CI LCD Conditioning Service Tag Reset Others Factory Reset On Off ABCDEFG ENERGY STAR® Display Info Press to display the information about the display. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Display Info DDC/CI LCD Conditioning Service Tag Reset Others Factory Reset Model: Dell E2X21HN Input Source: VGA Current: 1920x1080, 60Hz DDC/CI DDC/CI (Display Data Channel/Command Interface) allows you to adjust the monitor settings using software on your computer. Select Off to turn off this feature. Enable this feature for best user experience and optimum performance of your monitor. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Info DDC/CI LCD Conditioning Service Tag Reset Others Factory Reset Display Menu Personalize Others On Off

Icon Menu and submenus Description LCD Conditioning Help 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. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Info DDC/CI LCD Conditioning Service Tag Reset Others Factory Reset Display Menu Personalize Others On Off Service Tag Display the Service Tag number of the monitor. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Display Info DDC/CI LCD Conditioning Reset Others Factory Reset Service Tag On Off ABCDEFG ENERGY STAR® Reset Others Reset all settings under the Others setting menu to the factory default. Factory Reset Restore all preset values to the factory default setting. These are also the settings for ENERGY STAR® tests. Dell 2X Monitor Brightness / Contrast Auto Adjust Input Source Color Display Menu Personalize Others Display Info DDC/CI LCD Conditioning Reset Others Factory Reset Service Tag On Off ABCDEFG ENERGY STAR®

Before the DDC/CI function is disabled, the following message is displayed. Dell 2X Monitor The function of adjusting display setting using PC application will be disabled. Do you wish to disable DDC/CI function? E2X21HN No Yes The following Power Warning Message box applies to Brightness functions for the first time when you adjust the Brightness level above the default level. Dell 2X Monitor Adjusting to this value will increase power consumption above the default level. Do you want to continue? E2X21HN No Yes When the monitor enters Standby mode, the following message appears. Dell 2X Monitor Going into Standby mode... E2X21HN If VGA or HDMI cable is not connected, a floating dialog box appears. The monitor will enter Standby mode after 4 minutes if left at this state. Dell 2X Monitor No HDMI Cable www.dell.com/E2X21HN The display will go into Standby mode in 4 minutes. E2X21HN ? See Troubleshooting for more information.

Setting up display resolution on your monitor Setting display resolution to 1920 x 1080 For best performance, set the display resolution to 1920 x 1080 pixels by performing the following steps: In Windows 7: 1. Right-click on the desktop and click Screen Resolution. 2. Click the drop-down menu of the Screen Resolution and select 1920 x 1080. 3. Click OK. In Windows 8 or Windows 8.1: 1. Select the desktop tile to switch to classic desktop. 2. Right-click on the desktop and click Screen Resolution. 3. Click the drop-down menu of the Screen Resolution and select 1920 x 1080. 4. Click OK. In Windows 10: 1. Right-click on the desktop and click Display Settings. 2. Click Advanced Display Settings. 3. Click the drop-down menu under Resolution and select 1920 x 1080. 4. Click Apply. If you do not see the recommended resolution as an option, you may need to update your graphics driver. Use one of the following methods to update the graphics driver: Dell computer 1. Go to https://www.dell.com/support, enter your service tag, and download the latest driver for your graphics card. 2. After installing the drivers for your graphics adapter, attempt to set the resolution to 1920 x 1080 again. NOTE: If you are unable to set the resolution to 1920 x 1080, please contact Dell to enquire about a graphics adapter that supports these resolutions.

Non-Dell computer In Windows 7: 1. Right-click on the desktop and click Personalization. 2. Click Change Display Settings. 3. Click Advanced Settings. 4. Identify your graphics controller supplier from the description at the top of the window. For example, NVIDIA, AMD, Intel, and so on. 5. Refer to the graphic card provider website for updated driver. For example, https://www.AMD.com or https://www.NVIDIA.com. 6. After installing the drivers for your graphics adapter, attempt to set the resolution to 1920 x 1080 again. In Windows 8 or Windows 8.1: 1. Select the Desktop tile to switch to classic desktop. 2. Right-click on the desktop and click Personalization. 3. Click Change Display Settings. 4. Click Advanced Settings. 5. Identify your graphics controller supplier from the description at the top of the window. For example, NVIDIA, AMD, Intel, and so on. 6. Refer to the graphic card provider website for updated driver. For example, https://www.AMD.com or https://www.NVIDIA.com. 7. After installing the drivers for your graphics adapter, attempt to set the resolution to 1920 x 1080 again. In Windows 10: 1. Right-click on the desktop and click Display Settings. 2. Click Advanced display settings. 3. Click Display adapter properties. 4. Identify your graphics controller supplier from the description at the top of the window. For example, NVIDIA, AMD, Intel, and so on. 5. Refer to the graphic card provider website for updated driver. For example, https://www.AMD.com or https://www.NVIDIA.com. 6. After installing the drivers for your graphics adapter, attempt to set the resolution to 1920 x 1080 again. NOTE: If you are unable to set the recommended resolution, please contact the manufacturer of your computer or consider purchasing a graphics adapter that supports the video resolution.

Using tilt You can tilt the monitor for the most comfortable viewing angle. NOTE: The stand is not attached when the monitor is shipped from the factory. 5° 21°

Troubleshooting WARNING: Before you begin any of the procedures in this section, 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 does not 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. E2221HN Dell 22 Monitor No HDMI Cable www.dell.com/E2221HN The display will go into Standby mode in 4 minutes. E2221HN ? E2421HN Dell 24 Monitor No HDMI Cable www.dell.com/E2421HN The display will go into Standby mode in 4 minutes. E2421HN ? NOTE: This message also appears during normal operation, 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.

Built-in diagnostics Your monitor has a built-in diagnostic tool that helps you determine if any screen abnormality you experience is an inherent problem with your monitor, or with your computer and video card. 4 3 2 1 To run the built-in diagnostics: 1. Ensure that the screen is clean (no dust particles on the surface of the screen). 2. Press and Hold Button 1 for about 4 seconds and wait for a pop up menu. 3. Press Button 3 or 4 to select the diagnostic tool and confirm with Button 2. A gray test pattern appears at the beginning of the diagnostic program. 4. Carefully inspect the screen for abnormalities. 5. Press Button 4 to change the test patterns. 6. Repeat steps 4 and 5 to inspect red, green, blue, black, white and text screens. 7. Press Button 4 to end the diagnostic program.

Common problems The following table provides general information about common monitor problems you might encounter and the possible solutions: Common symptoms Possible solutions No Video/Power LED off • Ensure that the video cable connecting the monitor and the computer is properly connected and secure. • 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 using the Input Source menu. No video/Power LED on • 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 using the Input Source menu. Poor focus • Eliminate video extension cables. • Reset the monitor to Factory Settings (Factory Reset). • Change the video resolution to the correct aspect ratio. Shaky/Jittery video • Reset the monitor to Factory Settings (Factory Reset). • Check environmental factors. • Relocate the monitor and test in another room. Missing pixels • Cycle power On-off. • Pixel that is permanently off is a natural defect that can occur in LCD technology. • For more information about Dell Monitor Quality and Pixel Policy, see Dell Support site at https://www.dell.com/support/monitors. Stuck-on pixels • Cycle power On-off. • Pixel that is permanently off is a natural defect that can occur in LCD technology. • For more information about Dell Monitor Quality and Pixel Policy, see Dell Support site at: https://www.dell.com/support/monitors. Brightness problems • Reset the monitor to Factory Settings (Factory Reset). • Adjust brightness and contrast controls using OSD. Geometric distortion • Reset the monitor to Factory Settings (Factory Reset). • Adjust horizontal and vertical controls using OSD. Horizontal/Vertical 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.

Common symptoms Possible solutions Synchronization problems • 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 safe mode. Safety related issues • Do not perform any troubleshooting step. • Contact Dell immediately. Intermittent problems • 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 YPbPr in the Color settings OSD. • Run the built-in diagnostics. Image retention from a static image left on the monitor for a long period of time • 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. Video ghosting or overshooting • Change the Response Time in the Display OSD to Fast or Normal depending on your application and usage.

Product-specific problems Specific Symptoms Possible Solutions Screen image is too small • 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 • Turn off the monitor, unplug the power cord, plug it back, and then turn on the monitor. No input signal when user controls are pressed • Check the signal source. Ensure that the computer is not in standby or sleep 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. The picture does not fill the entire screen • Due to different video formats (aspect ratio) of DVDs, the monitor may display in full screen. • Run the built-in diagnostics.

Appendix 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. For information on safety instructions, see the Product Information Guide. FCC Notices (U.S. Only) and Other Regulatory Information For FCC notices and other regulatory information, see the regulatory compliance website located at https://www.dell.com/regulatory_compliance. Contact Dell For customers in the United States, call 800-WWW-DELL (800-999-3355). 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. Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area. To get online Monitor support content, visit https://www.dell.com/support/monitors. To contact Dell for sales, technical support, or customer service issues: 1. Visit https://www.dell.com/support. 2. Verify your country or region in the Choose A Country/Region drop-down menu at the bottom of the page. 3. Click Contact Us on the left side of the page. 4. Select the appropriate service or support link based on your need. 5. Choose the method of contacting Dell that is convenient for you. EU product database for energy label and product information sheet E2221HN: https://eprel.ec.europa.eu/qr/345973 E2421HN: https://eprel.ec.europa.eu/qr/346004