Monitor Users Guide
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Contents Safety instructions 5 About your monitor 6 Package contents 6 Product features 7 Identifying parts and controls 8 Front view 8 Back view 9 Bottom view 10 Monitor specifications 11 Resolution specifications 12 Preset display modes 13 Electrical specifications 13 Physical characteristics 14 Environmental characteristics 15 Power management modes 16 Pin Assignments 18 Plug-and-play 19 LCD monitor quality and pixel policy 19 Ergonomics 19 Handling and moving your display 21 Maintenance guidelines 22 Cleaning your monitor 22 Contents | 3
Contents Safety instructions 5 About your monitor 6 Package contents 6 Product features 7 Identifying parts and controls 8 Front view 8 Back view 9 Bottom view 10 Monitor specifications 11 Resolution specifications 12 Preset display modes 13 Electrical specifications 13 Physical characteristics 14 Environmental characteristics 15 Power management modes 16 Pin Assignments 18 Plug-and-play 19 LCD monitor quality and pixel policy 19 Ergonomics 19 Handling and moving your display 21 Maintenance guidelines 22 Cleaning your monitor 22 Contents | 3
Monitor Users Guide
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Setting up the monitor 23 Connecting the stand 23 Using the tilt 26 Connecting your monitor 27 Organizing your cables 28 Securing your monitor using Kensington lock (optional) 28 Removing the monitor stand 29 Wall mounting (Optional 30 Operating the monitor 31 Power on the monitor 31 Using the front panel controls 31 Using the OSD lock function 33 Front‑panel button 35 Using the On-Screen Display (OSD) menu 36 Accessing the menu system 36 OSD warning messages 47 Setting the maximum resolution 49 Troubleshooting 50 Self...
Setting up the monitor 23 Connecting the stand 23 Using the tilt 26 Connecting your monitor 27 Organizing your cables 28 Securing your monitor using Kensington lock (optional) 28 Removing the monitor stand 29 Wall mounting (Optional 30 Operating the monitor 31 Power on the monitor 31 Using the front panel controls 31 Using the OSD lock function 33 Front‑panel button 35 Using the On-Screen Display (OSD) menu 36 Accessing the menu system 36 OSD warning messages 47 Setting the maximum resolution 49 Troubleshooting 50 Self...
Monitor Users Guide
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...; Quick Setup Guide • Safety, Environmental, and Regulatory Information Product features The Dell S2421HN/S2421NX/S2721HN/S2721NX monitor has an active matrix, Thin Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. About your system. • On-Screen Display (OSD) adjustments for flexible mounting solutions. • Ultra-thin bezel minimizes the bezel gap in multi-monitor usage, enabling easier set -up and screen optimization. • Supports AMD FreeSyncTM technology. The monitor...
...; Quick Setup Guide • Safety, Environmental, and Regulatory Information Product features The Dell S2421HN/S2421NX/S2721HN/S2721NX monitor has an active matrix, Thin Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. About your system. • On-Screen Display (OSD) adjustments for flexible mounting solutions. • Ultra-thin bezel minimizes the bezel gap in multi-monitor usage, enabling easier set -up and screen optimization. • Supports AMD FreeSyncTM technology. The monitor...
Monitor Users Guide
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...;: S2421Ht Input Rating / Entrada / Daya Tegangan / Tension d'entrée: 100-240V ~ 50/60Hz 1.5A 100-240伏特, 1.5安培, 50/60赫茲 Made in China Manufactured date S2421HN t S2421HN/S2721HN 5 1 2 3 4 5 S2421NX/S2721NX Label Description 1 VESA mounting holes (100 mm x 100 mm-behind attached VESA cover) 2 Regulatory label 3 Stand release button 4 Barcode, serial number, and Service Tag label 5 Cable management slot Use Wall mount monitor using VESA- Apparaten...
...;: S2421Ht Input Rating / Entrada / Daya Tegangan / Tension d'entrée: 100-240V ~ 50/60Hz 1.5A 100-240伏特, 1.5安培, 50/60赫茲 Made in China Manufactured date S2421HN t S2421HN/S2721HN 5 1 2 3 4 5 S2421NX/S2721NX Label Description 1 VESA mounting holes (100 mm x 100 mm-behind attached VESA cover) 2 Regulatory label 3 Stand release button 4 Barcode, serial number, and Service Tag label 5 Cable management slot Use Wall mount monitor using VESA- Apparaten...
Monitor Users Guide
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Connect the power cable (shipped with HDMI cable. Connect speakers to playback audio coming through HDMI audio channel. NOTE: The audio line-out port does not support headphones. 10 | About your computer with security cable lock (sold separately). Connect your computer with your monitor). Only two-channel audio is supported. Connect your monitor Bottom view 12 3 45 S2421HN/S2721HN Label Description 1 Security lock slot 2 Power connector 3 HDMI port 1 4 HDMI port 2 5 Audio Line-out port 12 3 45 S2421NX/S2721NX Use Secures monitor with HDMI cable.
Connect the power cable (shipped with HDMI cable. Connect speakers to playback audio coming through HDMI audio channel. NOTE: The audio line-out port does not support headphones. 10 | About your computer with security cable lock (sold separately). Connect your computer with your monitor). Only two-channel audio is supported. Connect your monitor Bottom view 12 3 45 S2421HN/S2721HN Label Description 1 Security lock slot 2 Power connector 3 HDMI port 1 4 HDMI port 2 5 Audio Line-out port 12 3 45 S2421NX/S2721NX Use Secures monitor with HDMI cable.
Monitor Users Guide
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... Gray) 8 ms (normal) 5 ms (fast) 4 ms (extreme) Color depth 16.7 million colors Color gamut* NTSC 72% Connectivity • 2 x HDMI 1.4 • 1 x Audio line-out(3.5 mm jack) Border width (edge of monitor to active area) Top/Left/Right 5.4 mm 6.0 mm Bottom 20.7 mm 21.3 mm Adjustability Height adjustable NA stand Tilt -5° to 21° About your monitor | 11 Monitor specifications Model S2421HN/S2421NX S2721HN/S2721NX Screen type Active matrix -
... Gray) 8 ms (normal) 5 ms (fast) 4 ms (extreme) Color depth 16.7 million colors Color gamut* NTSC 72% Connectivity • 2 x HDMI 1.4 • 1 x Audio line-out(3.5 mm jack) Border width (edge of monitor to active area) Top/Left/Right 5.4 mm 6.0 mm Bottom 20.7 mm 21.3 mm Adjustability Height adjustable NA stand Tilt -5° to 21° About your monitor | 11 Monitor specifications Model S2421HN/S2421NX S2721HN/S2721NX Screen type Active matrix -
Monitor Users Guide
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...power button. Using the OSD lock function You can lock the front-panel control buttons to prevent access to lock the button(s). 1234 5 Operating the monitor | 33 Use the Lock menu to lock the buttons. Select one of the following message appears. Select Yes to lock the button(s). 1. To unlock the Buttons, refer to lock the Menu Buttons? Dell 24/27 Monitor Are you sure you want to the User's Guide. Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Language Transparency Timer Lock Reset Menu Menu Buttons Power Button Menu + Power...
...power button. Using the OSD lock function You can lock the front-panel control buttons to prevent access to lock the button(s). 1234 5 Operating the monitor | 33 Use the Lock menu to lock the buttons. Select one of the following message appears. Select Yes to lock the button(s). 1. To unlock the Buttons, refer to lock the Menu Buttons? Dell 24/27 Monitor Are you sure you want to the User's Guide. Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Language Transparency Timer Lock Reset Menu Menu Buttons Power Button Menu + Power...
Monitor Users Guide
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... Power Button unlock 4 Use this option to turn off the monitor. Built-in Diagnostics Front‑panel button Use the buttons on the front of the monitor to turn off the monitor. Power Button unlock 3 Use this option to unlock OSD menu and power button to adjust the image settings. OK Operating the monitor | 35 Options 1 Description Use this option to adjust items in the OSD menu. Front Panel Button 1 Up Down 2 1 23 Description Use the Up (increase) and Down (decrease) buttons to unlock OSD menu function. Use...
... Power Button unlock 4 Use this option to turn off the monitor. Built-in Diagnostics Front‑panel button Use the buttons on the front of the monitor to turn off the monitor. Power Button unlock 3 Use this option to unlock OSD menu and power button to adjust the image settings. OK Operating the monitor | 35 Options 1 Description Use this option to adjust items in the OSD menu. Front Panel Button 1 Up Down 2 1 23 Description Use the Up (increase) and Down (decrease) buttons to unlock OSD menu function. Use...
Monitor Users Guide
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Use to select Auto Select, the monitor scans for available input sources. Use to select the HDMI input source. Use to the factory defaults. Resets your monitor's Input Source settings to select the HDMI input source. Use the Color menu to adjust the color setting mode. Select HDMI2 input when you are using the HDMI1 connector. Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Preset Modes Input Color Format Reset Color Standard RGB 38 | Operating the monitor Icon Menu and Submenus HDMI 1 HDMI 2 Auto Select Reset Input Source ...
Use to select Auto Select, the monitor scans for available input sources. Use to select the HDMI input source. Use to the factory defaults. Resets your monitor's Input Source settings to select the HDMI input source. Use the Color menu to adjust the color setting mode. Select HDMI2 input when you are using the HDMI1 connector. Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Preset Modes Input Color Format Reset Color Standard RGB 38 | Operating the monitor Icon Menu and Submenus HDMI 1 HDMI 2 Auto Select Reset Input Source ...
Monitor Users Guide
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... player) using the HDMI cable. • YPbPr: Select this option if your DVD player supports only YPbPr output. The screen appears warmer with blue tint. • Custom Color: Allows you to set the video input mode to 100. The screen appears cooler with a red/yellow tint. • Cool : Decreases the color temperature. Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Preset Modes Input Color Format Reset Color RGB YPbPr Hue Saturation Reset Color Use or to adjust the...
... player) using the HDMI cable. • YPbPr: Select this option if your DVD player supports only YPbPr output. The screen appears warmer with blue tint. • Custom Color: Allows you to set the video input mode to 100. The screen appears cooler with a red/yellow tint. • Cool : Decreases the color temperature. Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Preset Modes Input Color Format Reset Color RGB YPbPr Hue Saturation Reset Color Use or to adjust the...
Monitor Users Guide
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...Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Language Transparency Timer Lock Reset Menu Menu Buttons Power Button Menu + Power Buttons Disable Reset Menu • Menu Buttons: Through OSD to lock the Menu buttons. • Power Button: Through OSD to lock the Power button. • Menu + Power Buttons: Through OSD to lock the all of Menu and Power buttons. • Disable: Press and hold the button next to the power button for four seconds to factory defaults. Operating the monitor | 43 Restore the menu settings to unlock the buttons...
...Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Language Transparency Timer Lock Reset Menu Menu Buttons Power Button Menu + Power Buttons Disable Reset Menu • Menu Buttons: Through OSD to lock the Menu buttons. • Power Button: Through OSD to lock the Power button. • Menu + Power Buttons: Through OSD to lock the all of Menu and Power buttons. • Disable: Press and hold the button next to the power button for four seconds to factory defaults. Operating the monitor | 43 Restore the menu settings to unlock the buttons...
Monitor Users Guide
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... Displays the monitor's current settings. Icon Menu and Submenus Others Description Select this option to adjust the OSD settings such as the DDC/CI, LCD conditioning, and so on your monitor. Dell 24/27 Monitor Brightness/Contrast Display Info Input Source DDC/CI On Color LCD Conditioning O Display Menu Personalize Firmware Service Tag Reset Others Others Factory Reset Operating the monitor | 45 Select Off to adjust the monitor settings using software on . DDC/CI (Display Data Channel/Command Interface) allows you to turn...
... Displays the monitor's current settings. Icon Menu and Submenus Others Description Select this option to adjust the OSD settings such as the DDC/CI, LCD conditioning, and so on your monitor. Dell 24/27 Monitor Brightness/Contrast Display Info Input Source DDC/CI On Color LCD Conditioning O Display Menu Personalize Firmware Service Tag Reset Others Others Factory Reset Operating the monitor | 45 Select Off to adjust the monitor settings using software on . DDC/CI (Display Data Channel/Command Interface) allows you to turn...
Monitor Users Guide
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.... S2421HN/S2421NX S2721HN/S2721NX Dell 24 Monitor No HDMI1 Cable The display will go into Power Save Mode in 4 minutes. S2421HN/S2421NX www.dell.com/support/S2721HN www.dell.com/support/S2721NX or S2721HN/S2721NX Dell 27 Monitor No HDMI2 Cable The display will appear depending on the keyboard or move the mouse to wake it up . If there is no display, press the monitor button again to select the correct input source.
.... S2421HN/S2421NX S2721HN/S2721NX Dell 24 Monitor No HDMI1 Cable The display will go into Power Save Mode in 4 minutes. S2421HN/S2421NX www.dell.com/support/S2721HN www.dell.com/support/S2721NX or S2721HN/S2721NX Dell 27 Monitor No HDMI2 Cable The display will appear depending on the keyboard or move the mouse to wake it up . If there is no display, press the monitor button again to select the correct input source.
Monitor Users Guide
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....dell.com/support/S2421HN www.dell.com/support/S2421NX S2421HN/S2421NX www.dell.com/support/S2721HN www.dell.com/support/S2721NX S2721HN/S2721NX 4. The floating dialog box should appear on-screen (against a black background), if the monitor cannot sense a video signal and is functioning properly. Troubleshooting WARNING: Before you to check whether your monitor is working correctly. If your computer and the monitor. 2. Turn on both your monitor and computer are properly connected...
....dell.com/support/S2421HN www.dell.com/support/S2421NX S2421HN/S2421NX www.dell.com/support/S2721HN www.dell.com/support/S2721NX S2721HN/S2721NX 4. The floating dialog box should appear on-screen (against a black background), if the monitor cannot sense a video signal and is functioning properly. Troubleshooting WARNING: Before you to check whether your monitor is working correctly. If your computer and the monitor. 2. Turn on both your monitor and computer are properly connected...
Monitor Users Guide
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... the display for abnormalities. 5. If you use the previous procedure, check your video controller and computer, because your monitor is clean (no dust particles on the surface of the screen changes to green, blue, black, white, and text screens. Check the video card and computer. Select the built-in diagnostic tool that the screen is functioning properly. Press Button 1 on the screen. 3. Troubleshooting | 51 Ensure that helps you determine if the screen abnormality...
... the display for abnormalities. 5. If you use the previous procedure, check your video controller and computer, because your monitor is clean (no dust particles on the surface of the screen changes to green, blue, black, white, and text screens. Check the video card and computer. Select the built-in diagnostic tool that the screen is functioning properly. Press Button 1 on the screen. 3. Troubleshooting | 51 Ensure that helps you determine if the screen abnormality...
Monitor Users Guide
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... contrast controls Power LED on brightness through OSD. 52 | Troubleshooting Stuck-on -off. Brightness Problems Picture too dim • Reset the monitor to factory settings. spots • Pixel that is permanently off is a natural defect that can occur in the Input Source menu. Missing Pixels LCD screen has • Cycle power on Pixels LCD screen has • Cycle power On-Off. bright spots • Pixel that is permanently off is a natural defect that can occur in the Input Source menu. Common problems...
... contrast controls Power LED on brightness through OSD. 52 | Troubleshooting Stuck-on -off. Brightness Problems Picture too dim • Reset the monitor to factory settings. spots • Pixel that is permanently off is a natural defect that can occur in the Input Source menu. Missing Pixels LCD screen has • Cycle power on Pixels LCD screen has • Cycle power On-Off. bright spots • Pixel that is permanently off is a natural defect that can occur in the Input Source menu. Common problems...
Monitor Users Guide
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... the monitor for bent or broken pins in diagnostics. Issues smoke or sparks • Contact Dell immediately. Image retention Faint shadow • Use the Power Management feature to the computer is connected properly and is secure. • Reset the monitor to factory settings. • Perform monitor self-test feature check to PC RGB or YPbPr in the Color menu OSD. • Run the built-in the video cable connector. Troubleshooting...
... the monitor for bent or broken pins in diagnostics. Issues smoke or sparks • Contact Dell immediately. Image retention Faint shadow • Use the Power Management feature to the computer is connected properly and is secure. • Reset the monitor to factory settings. • Perform monitor self-test feature check to PC RGB or YPbPr in the Color menu OSD. • Run the built-in the video cable connector. Troubleshooting...
Monitor Users Guide
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... keyboard. • Check whether the signal cable is white • Check the signal source. not fill entire viewing • Reset the monitor to different video formats (aspect ratio) does not fill the fill the height or of DVDs, the monitor may display in full entire screen width of the screen screen. • Run the built-in properly. No Input Signal when user controls are pressed No picture, the LED light is plugged in diagnostics. 54...
... keyboard. • Check whether the signal cable is white • Check the signal source. not fill entire viewing • Reset the monitor to different video formats (aspect ratio) does not fill the fill the height or of DVDs, the monitor may display in full entire screen width of the screen screen. • Run the built-in properly. No Input Signal when user controls are pressed No picture, the LED light is plugged in diagnostics. 54...
Monitor Display Manager Users Guide
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Dell 24/27 Monitor Brightness/Contrast Display Info Input Source DDC/CI On Color LCD Conditioning O Display Menu Personalize Firmware Service Tag Reset Others Others Factory Reset 4 | Overview After installed, Dell Display Manager runs each time the system starts and places its icon in the menu as below. Ensure that DDC/CI is enabled in the notification tray. Overview Dell Display Manager is available when hovering over the notification-tray icon. Information about displays connected to...
Dell 24/27 Monitor Brightness/Contrast Display Info Input Source DDC/CI On Color LCD Conditioning O Display Menu Personalize Firmware Service Tag Reset Others Others Factory Reset 4 | Overview After installed, Dell Display Manager runs each time the system starts and places its icon in the menu as below. Ensure that DDC/CI is enabled in the notification tray. Overview Dell Display Manager is available when hovering over the notification-tray icon. Information about displays connected to...
Monitor Display Manager Users Guide
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All video input ports available to your Dell display. Dell S2421HN/S2421NX DP HDMI HDMI S2421HN/S2421NX Dell S2721HN/S2721NX S2721HN/S2721NX Managing Multiple Video Inputs | 15 You can define a shortcut key to quickly switch to your favorite input and another shortcut key to switch between inputs while you work between two inputs if you often work with multiple computers. You can give each input a name as you like. Managing Multiple Video Inputs The Input Manager...
All video input ports available to your Dell display. Dell S2421HN/S2421NX DP HDMI HDMI S2421HN/S2421NX Dell S2721HN/S2721NX S2721HN/S2721NX Managing Multiple Video Inputs | 15 You can define a shortcut key to quickly switch to your favorite input and another shortcut key to switch between inputs while you work between two inputs if you often work with multiple computers. You can give each input a name as you like. Managing Multiple Video Inputs The Input Manager...