Dell S2421H User Manual
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Dell S2421H User Manual

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Dell S2421H/S2721H Monitor
User's Guide
Model: S2421H/S2721H
Regulatory model: S2421Ht/S2721Ht

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Summary of Contents for Dell S2421H

  • Page 1 Dell S2421H/S2721H Monitor User’s Guide Model: S2421H/S2721H Regulatory model: S2421Ht/S2721Ht...
  • Page 2 ComfortView monitor. 1111244653 1111244655 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 – 02...

  • Page 3: Table Of Contents

    Contents Safety instructions......5 About your monitor ......6 Package contents .
  • Page 4 FCC notices (U.S. only) and other regulatory information 56 Contacting Dell..... . . 56 EU product database for energy label and product information sheet .

  • Page 5: Safety Instructions

    Safety instructions CAUTION: Use of controls, adjustments, or procedures other than those specified in this documentation may result in exposure to shock, electrical hazards, and/or mechanical hazards. • Place the monitor on a solid surface and handle it carefully. The screen is fragile and can be damaged if dropped or hit sharply.

  • Page 6: About Your Monitor

    Package contents Your monitor ships with the components shown below. Ensure that you have received all the components and see Contacting Dell if anything is missing. NOTE: Some components may be optional and may not ship with your monitor. Some features may not be available in certain countries.
  • Page 7 © 20 2 0 Dell In c . or i t s subsidiarie 2 02 0 - 0 7 ww w . d ell .com / co n t a c t dell Dell .com /S 2 421H Dell .com /S 2 721H 7 4 6 .

  • Page 8: Product Features

    The Dell S2421H/S2721H monitor has an active matrix, Thin Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor features include: • S2421H: 60.45 cm (23.80 in.) active area display (measured diagonally) 1920 x 1080 (16:9) resolution, plus full-screen support for lower resolutions.

  • Page 9: Identifying Parts And Controls

    Identifying parts and controls Front view Label Description Function buttons For more information, see Operating the Monitor Power on/off button To turn the monitor on or off. (with LED indicator) About your monitor...

  • Page 10: Back View

    Releases stand from monitor. Barcode, serial number, and Service Refer to this label if you need to contact Tag label Dell for technical support. The Service Tag is a unique alphanumeric identifier that enables Dell service technicians to identify the hardware components in your display and access warranty information.

  • Page 11: Bottom View

    Bottom view 4 5 6 Label Description Built-in right speaker Provides audio output. Security lock slot Secures monitor with security cable lock (sold separately). Power connector Connect the power cable (shipped with your monitor). HDMI port 1 Connect your computer with HDMI cable. HDMI port 2 Connect your computer with HDMI cable.

  • Page 12: Monitor Specifications

    Monitor specifications Model S2421H S2721H Screen type Active matrix - TFT LCD Panel type In-plane switching Technology Aspect ratio 16:9 Viewable image dimensions: Diagonal 60.45 cm (23.8 in.) 68.60 cm (27 in.) Active Area: Horizontal 527.04 mm (20.75 in.) 597.89 mm (23.54 in.) Vertical 296.46 mm (11.67 in.)

  • Page 13: Resolution Specifications

    Cable management Dell Display Manager Easy Arrange and other key features (DDM) Compatibility Security Security lock slot (cable lock sold separately) * At panel native resolution only, under Custom Mode preset. Resolution specifications Model S2421H/S2721H Horizontal scan range 30 kHz to 83 kHz...

  • Page 14: Speaker Specifications

    Input voltage/frequency/current 100-240 VAC/50 or 60 Hz ± 3 Hz/1.5 A (maximum) Inrush current 120 V: 30 A (maximum) 240 V: 60 A (maximum) Power Consumption S2421H S2721H 0.2 W (Off Mode) 0.2 W (Off Mode) 0.2 W (Standby Mode) 0.2 W (Standby Mode) 13.1 W (On Mode)

  • Page 15: Physical Characteristics

    Frequency response 315 Hz - 12.5 kHz Impedance 4 ohm Physical characteristics Model S2421H S2721H Connector type • 2 x HDMI1.4 ports • 1 x Audio line-out port Signal cable type 1.8 m HDMI1.4 cable Dimensions (with stand): Height 412.80 mm (16.25 in.) 453.30 mm (17.85 in.)
  • Page 16 10% to 80% (non-condensing) Non-operating 5% to 90% (non-condensing) Altitude: Operating (maximum) 5,000 m (16,404 ft) Non-operating (maximum) 12,192 m (40,000 ft) Thermal dissipation S2421H 102.36 BTU/hour (maximum) 44.70 BTU/hour (On Mode) S2721H 139.90 BTU/hour (maximum) 57.32 BTU/hour (On Mode) About your monitor...

  • Page 17: Pin Assignments

    Pin assignments HDMI port Pin number 19-pin side of the connected signal cable TMDS DATA 2+ TMDS DATA 2 SHIELD TMDS DATA 2- TMDS DATA 1+ TMDS DATA 1 SHIELD TMDS DATA 1- TMDS DATA 0+ TMDS DATA 0 SHIELD TMDS DATA 0- TMDS CLOCK+ TMDS CLOCK SHIELD TMDS CLOCK-...

  • Page 18: Plug-And-Play

    For more information on LCD Monitor Pixel Policy, see Dell support site at: https://www.dell.com/pixelguidelines. Ergonomics CAUTION: Improper or prolonged usage of keyboard may result in injury.
  • Page 19 • 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.

  • Page 20: Handling And Moving Your Display

    Handling and moving your display To ensure the monitor is handled safely when lifting or moving it, follow the guidelines mentioned below: • 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.

  • Page 21: Maintenance Guidelines

    • When lifting or moving the monitor, do not turn the monitor upside down while holding the stand base or stand riser. This may result in accidental damage to the monitor or cause personal injury. Maintenance guidelines Cleaning your monitor WARNING: Before cleaning the monitor, unplug the monitor power cable from the electrical outlet.

  • Page 22: Setting Up The Monitor

    Setting up the monitor Connecting the stand NOTE: The stand riser and stand base are detached when the monitor is shipped from the factory. NOTE: The following instructions are applicable only for the stand that was shipped with your monitor. If you are connecting a stand that you purchased from any other source, follow the setup instructions that were included with the stand.
  • Page 23 4. Open the monitor protective cover, install the VESA screw cover. 5. Align the tabs on the stand-riser bracket with the grooves at the back of the monitor. 6. Insert the stand-riser bracket into monitor groove until it snaps into its place. Setting up the monitor...
  • Page 24 CAUTION: Hold the stand riser firmly when lifting the monitor to avoid any accidental damage. 7. Hold the stand riser and lift the monitor carefully, then place it on a flat surface. 8. Lift the protective cover from the monitor. Setting up the monitor...

  • Page 25: Using The Tilt

    Using the tilt NOTE: The following instructions are applicable only for the stand that was shipped with your monitor. If you are connecting a stand that you purchased from any other source, follow the set up instructions that were included with the stand. With the stand attached to the monitor, you can tilt the monitor for the most comfortable viewing angle.

  • Page 26: Connecting Your Monitor

    Connecting your monitor WARNING: Before you begin any of the procedures in this section, follow Safety Instructions. To connect your monitor to the computer: Turn off your computer. Connect the HDMI cable from your monitor to the computer. Turn on your monitor. Select the correct input source from the OSD Menu on your monitor and then turn on your computer.

  • Page 27: Organizing Your Cables

    Organizing your cables HDMI After connecting all necessary cables to your monitor and computer, (see Connecting Your Monitor for cable attachment) organize all cables as shown in the image. Securing your monitor using Kensington lock (optional) The security lock slot is located at the bottom of the monitor. (See Security lock slot) For more information about using the Kensington lock (purchased separately), see the...

  • Page 28: Removing The Monitor Stand

    Removing the monitor stand CAUTION: To prevent scratches on the LCD screen while removing the stand, make sure that the monitor is placed on a soft, clean surface. NOTE: The following instructions are applicable only for the stand that was shipped with your monitor. If you are connecting a stand that you purchased from any other source, follow the set up instructions that were included with the stand.

  • Page 29: Wall Mounting (Optional)

    Follow the instructions that shipped with the wall-mounting kit and mount the monitor on the wall. NOTE: For use only with UL or CSA or GS-listed wall mount bracket with minimum weight/load bearing capacity of 13.8 kg (S2421H)/17.6 kg (S2721H). Setting up the monitor...

  • Page 30: Operating The Monitor

    Operating the monitor Power 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 specifications of the image being displayed. When using the control buttons, an On-Screen Display (OSD) menu appears on the screen with numeric values.
  • Page 31 The following table describes the front panel buttons: Front-Panel Button Description Use this button to choose from a list of preset color modes. Shortcut key: Preset Modes Use this button to adjust the volume of the built-in speakers. Shortcut key: Volume Use this menu button to launch the on-screen display (OSD) and select the OSD menu.

  • Page 32: Using The Osd Lock Function

    You can lock the front-panel control buttons to prevent access to the OSD menu and/ or power button. Use the Lock menu to lock the button(s). 1. Select one of the following options. Dell 24/27 Monitor Brightness/Contrast Language Input Source...
  • Page 33 Use the front-panel control button to lock the button(s). 1. Press and hold Button 4 for four seconds, a menu appears on the screen. Dell 24/27 Monitor Select Option: 2. Select one of the following options: Options Description Select this option to lock OSD menu function.
  • Page 34 To unlock the button(s). Press and hold Button 4 for four seconds until a menu appears on the screen. The following table describes the options to unlock the front-panel control buttons. Dell 24/27 Monitor Dell 24/27 Monitor Dell 24/27 Monitor...

  • Page 35: Front-Panel Button

    Front-panel button Use the buttons on the front of the monitor to adjust the image settings. Front Panel Button Description Use the Up (increase) and Down (decrease) buttons to adjust items in the OSD menu. Down Use the OK button to confirm your selection. Use the Back button to go back to the previous menu.

  • Page 36: Using The On-Screen Display (Osd) Menu

    OSD menu, when you exit the OSD menu, or when the OSD menu to disappears automatically. 1. Press the button to launch the OSD menu and display the main menu. Dell 24/27 Monitor Brightness/Contrast Input Source Color...
  • Page 37 Icon Menu and Description Submenus Brightness/ Use this menu to activate Brightness/Contrast adjustment. Contrast Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Audio Menu Personalize Others Brightness Brightness adjusts the luminance of the backlight (minimum 0; maximum 100). Press the button to increase brightness.
  • Page 38 Reset Input Resets your monitor’s Input Source settings to the factory Source defaults. Color Use the Color menu to adjust the color setting mode. Dell 24/27 Monitor Brightness/Contrast Preset Modes Standard Input Source Input Color Format Reset Color...
  • Page 39 Description Submenus Preset When you select Preset Modes, you can choose Standard, Modes ComfortView, Movie, FPS, RTS, RPG, Warm, Cool or Custom Color from the list. Dell 24/27 Monitor Brightness/Contrast Preset Modes Standard Input Source Input Color Format ComfortView Movie...
  • Page 40 • R GB: Select this option if your monitor is connected to a computer (or DVD player) using the HDMI cable. • Y PbPr: Select this option if your DVD player supports only YPbPr output. Dell 24/27 Monitor Preset Modes Brightness/Contrast Input Color Format...
  • Page 41 NOTE: Saturation adjustment is available only for Movie and FPS, RTS, RPG mode. Reset Color Resets your monitor’s color settings to the factory defaults. Display Use the Display menu to adjust image. Dell 24/27 Monitor Brightness/Contrast Aspect Ratio Wide 16:9 Input Source Sharpness...
  • Page 42 Icon Menu and Description Submenus Audio Dell 24/27 Monitor Brightness/Contrast Volume Input Source Speaker Enable Color Reset Audio Display Audio Menu Personalize Others Volume Allows you to set the volume level of audio source. to adjust the volume level from ‘0’ to ‘100’.
  • Page 43 Submenus 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 24/27 Monitor Brightness/Contrast Language English Input Source Transparency...
  • Page 44 Icon Menu and Description Submenus Lock Controls user access to adjustments. The buttons are locked. Dell 24/27 Monitor Brightness/Contrast Language Input Source Transparency Color Timer Lock Menu Buttons Display Audio Power Button Reset Menu Menu Menu + Power Buttons Personalize...
  • Page 45 Submenus Reset Restores shortcut keys to factory defaults. Persona- lization Others Select this option to adjust the OSD settings such as the DDC/CI, LCD conditioning, and so on. Dell 24/27 Monitor Brightness/Contrast Display Info Input Source DDC/CI Color LCD Conditioning Firmware...
  • Page 46 Displays the firmware version of your monitor. Service Tag Displays the Service Tag. 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 of the cover.

  • Page 47: Osd Warning Messages

    OSD warning messages When the monitor does not support a particular resolution mode, you can see the following message: Dell 24/27 Monitor The current input timing is not supported by the monitor display. Please change your input timing to 1920x1080, 60Hz or any other monitor listed timing as per the monitor specifications.
  • Page 48 Select OSD items of On in Standby Mode in Personalize feature, the following message will appear: Dell 24/27 Monitor Changing to this setting (without symbol) will Increase power consumption, Do you want to continue? S2421H/S2721H If adjust the Brightness level above the default level over 75%, the following message...
  • Page 49 If either HDMI1, HDMI2 input is selected and the corresponding cable is not connected, a floating dialog box as shown below appears. Dell 24/27 Monitor No HDMI1 Cable The display will go into Standby mode in 4 minutes. www.dell.com/S2421H www.dell.com/S2721H...

  • Page 50: Setting The Maximum Resolution

    Depending on your computer, complete one of the following procedures: If you have a Dell desktop or portable computer: • 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 your computer manufacturer’s support website and download the latest...

  • Page 51: Troubleshooting

    While in self-test mode, the power LED remains white. Also, depending upon the selected input, one of the dialogs shown below will continuously scroll through the screen. Dell 24/27 Monitor No HDMI1 Cable The display will go into Standby mode in 4 minutes.

  • Page 52: Built-In Diagnostics

    If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is functioning properly. Built-in diagnostics Your monitor has a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with your monitor, or with your computer and video card.

  • Page 53: Common Problems

    Missing pixels LCD screen has • Cycle power on-off. spots • 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: https://www.dell.com/support/monitors. Stuck-on pixels LCD screen has • Cycle power On-Off. bright spots • Pixel that is permanently off is a natural defect that can occur in LCD technology. • For more information on Dell Monitor Quality and PixelPolicy, see Dell Support site at: https://www.dell.com/support/monitors.
  • Page 54 Common What you Possible solutions symptoms experience Intermittent Monitor • Ensure that the video cable connecting the problems malfunctions on monitor to the computer is connected properly & off and is secure. • Reset the monitor to factory settings. • Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode.

  • Page 55: Product Specific Problems

    Product specific problems Problem What you Possible solutions experience Screen image is Image is centered • Check the Aspect Ratio setting in the too small on screen, but Display menu OSD. does not fill entire • Reset the monitor to factory settings. viewing area Cannot adjust OSD does not...

  • Page 56: Appendix

    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.

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