Dell E2221HN/E2421HN User’s Guide Monitor Model: E2221HN/E2421HN Regulatory Model: E2221HNf, E2421HNf
Notes, Cautions and Warnings 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.
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..............................................
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.........................
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 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.
Identifying features and controls Front view 1 Label Description 2 Use To access the OSD menu and change the settings if required. For more information, see Using the front panel controls. To turn the monitor On or Off. Solid white light indicates that the monitor is Power On/Off button turned on and functioning normally. Blinking (with LED indicator) white light indicates that the monitor is in Standby Mode.
Label Description Use 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.
Monitor specifications Model E2221HN E2421HN Screen type Panel type Viewable area Diagonal Active area Horizontal Vertical Area Pixel pitch Pixel per inch (PPI) Viewing angle Horizontal Vertical Brightness Contrast ratio Faceplate coating Backlight Response time Normal mode Fast mode Color depth Color gamut Dell display manager compatibility Connectivity Bezel width (edge of monitor to active area) Active matrix-TFT LCD TN Active matrix-TFT LCD In-Plane Switching 546.86 mm (21.5 in.) 604.70 mm (23.
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 VESA, 720 x 400 VESA, 640 x 480 VESA, 640 x 480 VESA, 800 x 600 VESA, 800 x 600 VESA, 1024 x 768 VESA, 1024 x 768 VESA, 1152 x 864 VESA, 1280 x1024 VESA, 1280 x1024 VESA, 1600 x 900 VESA, 1920 x1080 Horiz
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 Separate horizontal and vertical synchronizations, polarity-free TTL level, SOG (Composite SYNC on green) Synchronization input signals AC input voltage/ frequency/current Inrush current Power Consumption 100 VAC to 240 VAC/50 Hz or 60 Hz ± 3 Hz/0.
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.
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.
Environmental characteristics Model Temperature: Operating Non-operating: Storage Shipping Humidity: Operating Non-operating: Storage Shipping Altitude: Operating (maximum) Non-operating (maximum) E2221HN/E2421HN 0°C to 40°C (32°F to 104°F) -20°C to 60°C (-4°F to 140°F) 10% to 80% (non-condensing) 5% to 90% (non-condensing) 5,000 m (16,400 ft) 12,192 m (40,000 ft) Model E2221HN Thermal dissipation 54.59 BTU/hour (maximum) 68.24 BTU/hour (maximum) 44.36 BTU/hour (typical) 51.
Pin assignments D-Sub 15-pin connector Pin Number Signal Assignment 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Video-Red Video-Green Video-Blue GND Self-test GND-R GND-G GND-B DDC +5 V GND-sync GND DDC data H-sync V-sync DDC clock HDMI 19-pin connector Pin Number Signal Assignment 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 TMDS DATA 2+ TMDS DATA 2 SHIELD TMDS DATA 2TMDS DATA 1+ TMDS DATA 1 SHIELD TMDS DATA 1TMDS DATA 0+ TMDS DATA 0 SHIELD TMDS DATA 0TMDS CLOCK+ TMDS CLOCK SHIELD TMDS CLOCKCEC Reserved (N
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.
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.
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.
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.
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.
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.
Wall Mounting (Optional) (Screw dimension: M4 x 10 mm). Refer to the instructions that come with the VESA-compatible base mounting kit. 1. 2. 3. 4. 5. Place the monitor panel on a soft cloth or cushion on a stable flat table. Remove the stand. Use a screwdriver to remove the four screws securing the plastic cover. Attach the mounting bracket from the wall mounting kit to the LCD. Mount the LCD on the wall by following the instructions that came with the base mounting kit.
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 1 Description Use this button to choose from a list of preset modes. Preset modes 2 For direct access to the Brightness and Contrast menu.
OSD controls Use the buttons on the bottom edge of the monitor to adjust the image settings. 1 2 3 4 Control buttons 1 Description Use the Up button to increase values or move up in a menu. Up 2 Down 3 Use the Down button to decrease values or move down in a menu. Use the OK button to confirm your selection in a menu. OK 4 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 75% Input Source 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.
Icon Menu and submenus Brightness/ Contrast Description Use this option to control the brightness or contrast settings. Dell 2X Monitor Brightness / Contrast Auto Adjust 75% Input Source 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).
Icon Menu and submenus Auto Adjust Description Use this option to activate automatic setup and adjust menu. Dell 2X Monitor Brightness / Contrast Auto Adjust Press to adjust the screen automatically Input Source Color Display Menu Personalize Others The following dialog appears on a black screen as the monitor selfadjusts to the current input: Auto Adjustment in Progress... Auto Adjust allows the monitor to self-adjust to the incoming video signal.
Icon Menu and submenus Input Source Description Use the Input Source menu to switch between the different video signals that may be connected to your monitor. Dell 2X Monitor Brightness / Contrast VGA Auto Adjust HDMI Input Source Auto Select Color Reset Input Source On Display Menu Personalize Others VGA Push to select the VGA input source when using VGA connector. HDMI Push to select the HDMI input source when using HDMI Auto Select connector.
Icon Menu and Description submenus 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.
Icon Menu and submenus Input Color Format Description 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 Preset Modes Auto Adjust Input Color Format RGB Input Source Reset Color YPbPr Color Display Menu Personalize Others Reset Color Reset your monitor color settings to the factory settings.
Icon Menu and submenus Description E2421HN Dell 24 XX Monitor Monitor Brightness / Contrast Aspect Ratio Auto Adjust Horizontal Reset Display Position Input Source Vertical Position Color Sharpness Display Pixel Clock Menu Phase Personalize Reset Display Wide 16:9 50 Others Aspect Ratio Adjust the image ratio to Wide 16:9, 4:3, or 5:4. Horizontal Use or to move image left and right. Position (VGA input only) Minimum is '0' (-). Maximum is '100' (+).
Icon Menu and submenus Menu Description 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.
Icon Menu and submenus Personalize Description Selecting this option allows you to set two shortcut keys and power LED indicator function.
Icon Menu and submenus Others Description Dell 2X Monitor Brightness / Contrast Display Info Auto Adjust DDC/CI On Input Source LCD Conditioning Off Color Service Tag ABCDEFG Display Reset Others Menu Factory Reset ENERGY STAR ® Personalize Others Display Info Press to display the information about the display.
Icon Menu and submenus LCD Conditioning Description 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 Display Info Auto Adjust DDC/CI Input Source LCD Conditioning On Color Service Tag Off Display Reset Others Menu Factory Reset Personalize Others Service Tag Display the Service Tag number of the monitor.
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? Yes No E2X21HN 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.
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. 2. 3. 4. Select the desktop tile to switch to classic desktop. Right-click on the desktop and click Screen Resolution.
Non-Dell computer In Windows 7: 1. 2. 3. 4. Right-click on the desktop and click Personalization. Click Change Display Settings. Click Advanced Settings. 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.
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.
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.
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.
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.
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.
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.
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.
