Monitor Users Guide
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... parts and controls 8 Front view 8 Back view 9 Bottom view 10 Monitor specifications 11 Resolution specifications 12 Preset display modes 12 Electrical specifications 13 Physical characteristics 13 Environmental characteristics 14 Power management modes 15 Pin assignments 17 Plug-and-play 19 LCD monitor quality and pixel policy 19 Ergonomics 20 Handling and moving your display 22 Maintenance guidelines 23 Cleaning your monitor 23 Setting up the monitor 24 Connecting the stand 24 Using the tilt, swivel, and vertical extension...
... parts and controls 8 Front view 8 Back view 9 Bottom view 10 Monitor specifications 11 Resolution specifications 12 Preset display modes 12 Electrical specifications 13 Physical characteristics 13 Environmental characteristics 14 Power management modes 15 Pin assignments 17 Plug-and-play 19 LCD monitor quality and pixel policy 19 Ergonomics 20 Handling and moving your display 22 Maintenance guidelines 23 Cleaning your monitor 23 Setting up the monitor 24 Connecting the stand 24 Using the tilt, swivel, and vertical extension...
Monitor Users Guide
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... the display settings on your computer after rotation 27 Connecting your monitor 28 Organizing your cables 29 Securing your monitor using Kensington lock (optional) 29 Removing the monitor stand 30 Wall mounting (Optional 31 Operating the monitor 32 Power on the monitor 32 Using the front panel controls 32 Using the OSD lock function 34 Front‑panel button 36 Using the On-Screen Display (OSD) menu 37 Accessing the menu system 37 OSD warning messages 48 Setting the maximum resolution 50 Troubleshooting 51...
... the display settings on your computer after rotation 27 Connecting your monitor 28 Organizing your cables 29 Securing your monitor using Kensington lock (optional) 29 Removing the monitor stand 30 Wall mounting (Optional 31 Operating the monitor 32 Power on the monitor 32 Using the front panel controls 32 Using the OSD lock function 34 Front‑panel button 36 Using the On-Screen Display (OSD) menu 37 Accessing the menu system 37 OSD warning messages 48 Setting the maximum resolution 50 Troubleshooting 51...
Monitor Users Guide
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... of set up and screen optimization. • Supports AMD FreeSync™ technology. • Quick Setup Guide • Safety,Environmental,and Regulatory Information Product features The Dell S2421HS/S2721HS/S2421HSX/S2721HSX monitor has an active matrix, Thin Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor features include: • S2421HS/S2421HSX: 60.45 cm (23.8 in.) active area display (Measured diagonally). 1920 x 1080 (16:9) resolution, plus full-screen support...
... of set up and screen optimization. • Supports AMD FreeSync™ technology. • Quick Setup Guide • Safety,Environmental,and Regulatory Information Product features The Dell S2421HS/S2721HS/S2421HSX/S2721HSX monitor has an active matrix, Thin Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor features include: • S2421HS/S2421HSX: 60.45 cm (23.8 in.) active area display (Measured diagonally). 1920 x 1080 (16:9) resolution, plus full-screen support...
Monitor Users Guide
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... Dell service technicians to organize cables by placing them through the slot. Lists the regulatory approvals. Back view 1 2 3 5 4 S2421HS/S2721HS 1 2 3 5 4 S2421HSX/S2721HSX Label 1 2 3 4 5 Description VESA mounting holes (100 mm x 100 mm-behind attached VESA cover) Regulatory label Stand release button Barcode, serial number, and Service Tag label Cable management slot Use Wall mount monitor using VESA-compatible wall mount kit (100 mm x 100 mm). Refer to this label if you need to contact Dell for technical support...
... Dell service technicians to organize cables by placing them through the slot. Lists the regulatory approvals. Back view 1 2 3 5 4 S2421HS/S2721HS 1 2 3 5 4 S2421HSX/S2721HSX Label 1 2 3 4 5 Description VESA mounting holes (100 mm x 100 mm-behind attached VESA cover) Regulatory label Stand release button Barcode, serial number, and Service Tag label Cable management slot Use Wall mount monitor using VESA-compatible wall mount kit (100 mm x 100 mm). Refer to this label if you need to contact Dell for technical support...
Monitor Users Guide
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Resolution specifications Model S2421HS/S2421HSX/S2721HS/S2721HSX DisplayPort HDMI Horizontal scan range 83 kHz to 83 kHz 30 kHz to 83 kHz Vertical scan range 48 Hz to 90° Cable management Yes Dell Display Manager (DDM)Compatibility Easy Arrange and other key features Security Security-lock slot (cable lock sold separately) *At panel native resolution only, under Custom Mode preset. Height adjustable stand 100 mm 110mm Tilt -5° to 21° Swivel -30°...
Resolution specifications Model S2421HS/S2421HSX/S2721HS/S2721HSX DisplayPort HDMI Horizontal scan range 83 kHz to 83 kHz 30 kHz to 83 kHz Vertical scan range 48 Hz to 90° Cable management Yes Dell Display Manager (DDM)Compatibility Easy Arrange and other key features Security Security-lock slot (cable lock sold separately) *At panel native resolution only, under Custom Mode preset. Height adjustable stand 100 mm 110mm Tilt -5° to 21° Swivel -30°...
Monitor Users Guide
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...input from the keyboard, mouse, 14 | About your PC, the monitor can automatically reduce its power consumption when not in use. Depth 159.7 mm (6.29 in.) Weight Weight with packaging 7.0 kg (15.43 lb) Weight with stand assembly and cables Weight without stand assembly (For wall mount or VESA mount considerations no cables) Weight of stand assembly...S2421HSX 78.48 BTU/hour (maximum) 61.42 BTU/hour (typical) S2721HS/S2721HSX 105.78 BTU/hour (maximum) 68.24 BTU/hour (typical) Power management modes If you have VESA's DPM-compliant video card or software installed in your monitor...
...input from the keyboard, mouse, 14 | About your PC, the monitor can automatically reduce its power consumption when not in use. Depth 159.7 mm (6.29 in.) Weight Weight with packaging 7.0 kg (15.43 lb) Weight with stand assembly and cables Weight without stand assembly (For wall mount or VESA mount considerations no cables) Weight of stand assembly...S2421HSX 78.48 BTU/hour (maximum) 61.42 BTU/hour (typical) S2721HS/S2721HSX 105.78 BTU/hour (maximum) 68.24 BTU/hour (typical) Power management modes If you have VESA's DPM-compliant video card or software installed in your monitor...
Monitor Users Guide
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...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 2. Select Yes to the User's Guide. The following options. To unlock the Buttons, refer to lock the buttons. Yes No S2421HS/S2721HS/S2421HSX/S2721HSX 3. Dell 24/27 Monitor Are you sure you want to lock the button(s). 1 2 34 5 34 | Operating the monitor Select one of the following message appears. Once locked, pressing any control button will display the lock icon Use the front-panel control...
...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 2. Select Yes to the User's Guide. The following options. To unlock the Buttons, refer to lock the buttons. Yes No S2421HS/S2721HS/S2421HSX/S2721HSX 3. Dell 24/27 Monitor Are you sure you want to lock the button(s). 1 2 34 5 34 | Operating the monitor Select one of the following message appears. Once locked, pressing any control button will display the lock icon Use the front-panel control...
Monitor Users Guide
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... user to turn off the monitor using the Power Button lock power button. 3 Use this option to run the built-in diagnostics, see Built-in Diagnostics To unlock the button(s). Press and hold Button 4 for four seconds until a menu appears on the screen. Dell 24/27 Monitor Select Option: 2. 1. Built-in Diagnostics. Menu Buttons lock 2 Use this option to lock OSD menu and power button to lock OSD menu function. Menu and Power Buttons lock 4 Use this option to turn off the monitor. Press and hold Button...
... user to turn off the monitor using the Power Button lock power button. 3 Use this option to run the built-in diagnostics, see Built-in Diagnostics To unlock the button(s). Press and hold Button 4 for four seconds until a menu appears on the screen. Dell 24/27 Monitor Select Option: 2. 1. Built-in Diagnostics. Menu Buttons lock 2 Use this option to lock OSD menu and power button to lock OSD menu function. Menu and Power Buttons lock 4 Use this option to turn off the monitor. Press and hold Button...
Monitor Users Guide
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... Use the OK button to adjust items in the OSD menu. Options 1 Description Use this option to unlock power button to turn off the monitor. Power Button unlock 3 Use this option to run the built-in diagnostics, see Built-in Diagnostics Front‑panel button Use the buttons on the front of the monitor to unlock OSD menu function. OK 36 | Operating the monitor Built-in Diagnostics. Menu Buttons unlock 2 Use this option to adjust the image settings. Front Panel Button 1 1 23 Description Use...
... Use the OK button to adjust items in the OSD menu. Options 1 Description Use this option to unlock power button to turn off the monitor. Power Button unlock 3 Use this option to run the built-in diagnostics, see Built-in Diagnostics Front‑panel button Use the buttons on the front of the monitor to unlock OSD menu function. OK 36 | Operating the monitor Built-in Diagnostics. Menu Buttons unlock 2 Use this option to adjust the image settings. Front Panel Button 1 1 23 Description Use...
Monitor Users Guide
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... Others DP Use to adjust the color setting mode. Auto Select Reset Input Source Color Use to select Auto Select to select the HDMI input source. Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Preset Modes Input Color Format Reset Color Standard RGB Operating the monitor | 39 Icon Menu and Submenus Description Input Source Use the Input Source menu to select between different video inputs that are be connected to your monitor's Input Source settings to the factory defaults. HDMI Use to scan for available input signals.
... Others DP Use to adjust the color setting mode. Auto Select Reset Input Source Color Use to select Auto Select to select the HDMI input source. Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Preset Modes Input Color Format Reset Color Standard RGB Operating the monitor | 39 Icon Menu and Submenus Description Input Source Use the Input Source menu to select between different video inputs that are be connected to your monitor's Input Source settings to the factory defaults. HDMI Use to scan for available input signals.
Monitor Users Guide
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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 hue from 0 to 100. NOTE: Saturation adjustment is available only for Movie and FPS, RTS, RPG mode. Operating the monitor | 41 Press the and buttons to adjust the Red, Green, and Blue values and create your monitor's color settings to the factory defaults. NOTE: Hue adjustment is available only for Movie and FPS...
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 hue from 0 to 100. NOTE: Saturation adjustment is available only for Movie and FPS, RTS, RPG mode. Operating the monitor | 41 Press the and buttons to adjust the Red, Green, and Blue values and create your monitor's color settings to the factory defaults. NOTE: Hue adjustment is available only for Movie and FPS...
Monitor Users Guide
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Icon Menu and Submenus Lock Description Controls user access to factory defaults. 44 | Operating the monitor The buttons are locked. Restore the menu settings to adjustments. 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. •...
Icon Menu and Submenus Lock Description Controls user access to factory defaults. 44 | Operating the monitor The buttons are locked. Restore the menu settings to adjustments. 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. •...
Monitor Users Guide
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... Color LCD Conditioning O Display Menu Personalize Firmware Service Tag Reset Others Others Factory Reset 46 | Operating the monitor Select Off to turn off this option to adjust the monitor settings using software on . Enable this feature for best user experience and optimum performance of your computer. DDC/CI (Display Data Channel/Command Interface) allows you to adjust the OSD settings, such as the DDC/CI, LCD conditioning, and so on your monitor. Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu...
... Color LCD Conditioning O Display Menu Personalize Firmware Service Tag Reset Others Others Factory Reset 46 | Operating the monitor Select Off to turn off this option to adjust the monitor settings using software on . Enable this feature for best user experience and optimum performance of your computer. DDC/CI (Display Data Channel/Command Interface) allows you to adjust the OSD settings, such as the DDC/CI, LCD conditioning, and so on your monitor. Dell 24/27 Monitor Brightness/Contrast Input Source Color Display Menu...
Monitor Users Guide
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... 4 minutes. S2421HS/S2421HSX S2721HS/S2721HSX Dell 24 Monitor Dell 27 Monitor No DP Cable The display will go into Standby mode in this section, follow the Safety Instructions. No HDMI Cable The display will go into Standby mode in 4 minutes. Turn off both your monitor and reconnect the video cable; Troubleshooting | 51 The floating dialog box should appear on-screen (against a black background), if the monitor cannot sense a video signal and is disconnected...
... 4 minutes. S2421HS/S2421HSX S2721HS/S2721HSX Dell 24 Monitor Dell 27 Monitor No DP Cable The display will go into Standby mode in this section, follow the Safety Instructions. No HDMI Cable The display will go into Standby mode in 4 minutes. Turn off both your monitor and reconnect the video cable; Troubleshooting | 51 The floating dialog box should appear on-screen (against a black background), if the monitor cannot sense a video signal and is disconnected...
Monitor Users Guide
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... surface of the screen changes to green, blue, black, white, and text screens. If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is an inherent problem with your monitor, or with your computer and video card. 1 2 34 5 To run the built-in diagnostics: 1. Carefully inspect the screen for four seconds, a menu appears on the front panel again. Ensure that...
... surface of the screen changes to green, blue, black, white, and text screens. If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is an inherent problem with your monitor, or with your computer and video card. 1 2 34 5 To run the built-in diagnostics: 1. Carefully inspect the screen for four seconds, a menu appears on the front panel again. Ensure that...
Monitor Users Guide
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... 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 troubleshooting steps. No picture or no • Increase brightness & contrast controls through OSD. LCD screen has • Cycle power on -off. or too bright • Adjust brightness and contrast controls through brightness OSD. • Perform monitor self-test feature check. • Check for bent or broken pins in the video cable connector. •...
... 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 troubleshooting steps. No picture or no • Increase brightness & contrast controls through OSD. LCD screen has • Cycle power on -off. or too bright • Adjust brightness and contrast controls through brightness OSD. • Perform monitor self-test feature check. • Check for bent or broken pins in the video cable connector. •...
Monitor Users Guide
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... Custom Color in Color menu OSD. • Change the Input Color Format to PC RGB or YPbPr in the Color menu OSD. • Run the built-in use a dynamically changing time screensaver. Wrong Color Picture color not good • Change the settings of screen • Alternatively, use image left on image displayed (for more information, see Power Management the monitor for bent or broken pins in the video cable connector. Image retention Faint shadow • Use the Power Management feature to turn...
... Custom Color in Color menu OSD. • Change the Input Color Format to PC RGB or YPbPr in the Color menu OSD. • Run the built-in use a dynamically changing time screensaver. Wrong Color Picture color not good • Change the settings of screen • Alternatively, use image left on image displayed (for more information, see Power Management the monitor for bent or broken pins in the video cable connector. Image retention Faint shadow • Use the Power Management feature to turn...
Monitor Users Guide
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... in the power saving mode by moving the mouse or pressing any key on the keyboard. • Check whether the signal cable is white The picture cannot fill the height or width of DVDs, the monitor may display in full screen. • Run the built-in properly. Troubleshooting | 55 Problem Cannot adjust the monitor with the buttons on the front panel No Input Signal when user controls are pressed The picture does not...
... in the power saving mode by moving the mouse or pressing any key on the keyboard. • Check whether the signal cable is white The picture cannot fill the height or width of DVDs, the monitor may display in full screen. • Run the built-in properly. Troubleshooting | 55 Problem Cannot adjust the monitor with the buttons on the front panel No Input Signal when user controls are pressed The picture does not...
Monitor Display Manager Users Guide
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... system starts and places its icon in the menu as below. It enables manual adjustment of the displayed image, assignment of displays. Dell S2421HS/S2421HSX - Information about displays connected to the system is a Microsoft Windows application used to communicate with your display. Overview Dell Display Manager is available when hovering over the notification-tray icon. Dell 24/27 Monitor Brightness/Contrast Display Info Input Source DDC/CI On Color LCD Conditioning O Display Firmware Menu Personalize Service Tag Reset Others Others Factory Reset...
... system starts and places its icon in the menu as below. It enables manual adjustment of the displayed image, assignment of displays. Dell S2421HS/S2421HSX - Information about displays connected to the system is a Microsoft Windows application used to communicate with your display. Overview Dell Display Manager is available when hovering over the notification-tray icon. Dell 24/27 Monitor Brightness/Contrast Display Info Input Source DDC/CI On Color LCD Conditioning O Display Firmware Menu Personalize Service Tag Reset Others Others Factory Reset...
Monitor Display Manager Users Guide
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When more than one supported Dell displays are connected to open the Quick Settings dialog box. The Quick Settings dialog box enables convenient adjustment of the display's brightness, contrast, resolution, window layout, and so on. Dell S2421HS/S2421HSX S2421HS/S2421HSX Using the Quick Settings Dialog | 5 You can select Manual Mode or Auto Mode, and the screen resolution can be changed. Using the Quick Settings Dialog Clicking Dell Display Manager's notification tray icon to the computer, a specific target display can be selected using the menu.
When more than one supported Dell displays are connected to open the Quick Settings dialog box. The Quick Settings dialog box enables convenient adjustment of the display's brightness, contrast, resolution, window layout, and so on. Dell S2421HS/S2421HSX S2421HS/S2421HSX Using the Quick Settings Dialog | 5 You can select Manual Mode or Auto Mode, and the screen resolution can be changed. Using the Quick Settings Dialog Clicking Dell Display Manager's notification tray icon to the computer, a specific target display can be selected using the menu.