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... Your Monitor 5 Package Contents 5 Product Features 6 Identifying Parts and Controls 7 Monitor Specifications 11 Plug and Play 23 LCD Monitor Quality & Pixel Policy 23 Setting Up the Monitor 24 Connecting the stand 24 Using the Tilt and Vertical Extension 26 Rotating the Monitor 27 Connecting Your Monitor 28 Removing the Monitor Stand 29 Wall Mounting (Optional 31 Operating the Monitor 32 Power On the Monitor 32 Using the Front-Panel Controls 32 Using the OSD Lock function 33 Using the On-Screen Display (OSD) Menu 33 Troubleshooting 41 Common Problems 41...
... Your Monitor 5 Package Contents 5 Product Features 6 Identifying Parts and Controls 7 Monitor Specifications 11 Plug and Play 23 LCD Monitor Quality & Pixel Policy 23 Setting Up the Monitor 24 Connecting the stand 24 Using the Tilt and Vertical Extension 26 Rotating the Monitor 27 Connecting Your Monitor 28 Removing the Monitor Stand 29 Wall Mounting (Optional 31 Operating the Monitor 32 Power On the Monitor 32 Using the Front-Panel Controls 32 Using the OSD Lock function 33 Using the On-Screen Display (OSD) Menu 33 Troubleshooting 41 Common Problems 41...
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....8 in the sleep mode. 6 │ About Your Monitor Quick Setup Guide Safety and Regulatory Information Product Features The Dell D2421H/D2721H/D2421DS flat-panel display has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) Panel with DisplayPort and HDMI. • Height adjustment and pivot capability for D2421DS. • Plug and play capability if supported by your system. • On-Screen Display (OSD) adjustments for ease of set-up and screen optimization. • Security lock slot...
....8 in the sleep mode. 6 │ About Your Monitor Quick Setup Guide Safety and Regulatory Information Product Features The Dell D2421H/D2721H/D2421DS flat-panel display has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) Panel with DisplayPort and HDMI. • Height adjustment and pivot capability for D2421DS. • Plug and play capability if supported by your system. • On-Screen Display (OSD) adjustments for ease of set-up and screen optimization. • Security lock slot...
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...: April 2020 4 DELL D2421H /Flat Panel Monitor Model No.: D2421H ශਭ / Rating 100-240V~ 50/60Hz 0.8A Made in China Manufactured date: April 2020 3 Label Description 1 VESA mounting holes (100 mm) 2 Security lock slot Back View with security lock (security lock not included). Identifying Parts and Controls NOTE: The graphics are used for the purpose of the monitor using a VESA mount or arm. Secures monitor with Monitor Stand Use Supports optional mounting of illustration...
...: April 2020 4 DELL D2421H /Flat Panel Monitor Model No.: D2421H ශਭ / Rating 100-240V~ 50/60Hz 0.8A Made in China Manufactured date: April 2020 3 Label Description 1 VESA mounting holes (100 mm) 2 Security lock slot Back View with security lock (security lock not included). Identifying Parts and Controls NOTE: The graphics are used for the purpose of the monitor using a VESA mount or arm. Secures monitor with Monitor Stand Use Supports optional mounting of illustration...
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...monitor using a HDMI cable. To connect your earphone D2721H Front view 1 23 Label Description 1 Function buttons (For more information, see Operating the Monitor) 8 │ About Your Monitor Release stand from monitor. 1 234 Label Description 1 AC power connector 2 HDMI connector 3 VGA connector 4 Earphone connector Use To connect the monitor power cable. To connect your computer to contact Dell for technical support. Refer to this label if you need to the monitor using a VGA cable. 3 Regulatory rating label with Barcode serial number 4 Stand release button Bottom View...
...monitor using a HDMI cable. To connect your earphone D2721H Front view 1 23 Label Description 1 Function buttons (For more information, see Operating the Monitor) 8 │ About Your Monitor Release stand from monitor. 1 234 Label Description 1 AC power connector 2 HDMI connector 3 VGA connector 4 Earphone connector Use To connect the monitor power cable. To connect your computer to contact Dell for technical support. Refer to this label if you need to the monitor using a VGA cable. 3 Regulatory rating label with Barcode serial number 4 Stand release button Bottom View...
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... with Monitor Stand Use Supports optional mounting of the monitor using a VESA mount or arm. Release stand from monitor. Bottom View 1 23 Label Description Use 1 AC power connector To connect the monitor power cable. About Your Monitor │ 9 Refer to this label if you need to contact Dell for technical support. 2 Power On/Off button 3 LED indicator Back view 1 DELL D2721H /Flat Panel Monitor Model No.: D2721H ශਭ / Rating 100-240V~ 50/60Hz 1.0A Made in China Manufactured date: April 2020 4 DELL D2721H /Flat Panel Monitor Model No...
... with Monitor Stand Use Supports optional mounting of the monitor using a VESA mount or arm. Release stand from monitor. Bottom View 1 23 Label Description Use 1 AC power connector To connect the monitor power cable. About Your Monitor │ 9 Refer to this label if you need to contact Dell for technical support. 2 Power On/Off button 3 LED indicator Back view 1 DELL D2721H /Flat Panel Monitor Model No.: D2721H ශਭ / Rating 100-240V~ 50/60Hz 1.0A Made in China Manufactured date: April 2020 4 DELL D2721H /Flat Panel Monitor Model No...
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2 HDMI connector 3 VGA connector D2421DS Front view To connect your computer to the monitor using a VGA cable. 1 23 Label 1 2 3 Description Function buttons (For more information, see Operating the Monitor) Power On/Off button LED indicator Back view 1 2 3 10 │ About Your Monitor Back View with Monitor Stand To connect your computer to the monitor using a HDMI cable.
2 HDMI connector 3 VGA connector D2421DS Front view To connect your computer to the monitor using a VGA cable. 1 23 Label 1 2 3 Description Function buttons (For more information, see Operating the Monitor) Power On/Off button LED indicator Back view 1 2 3 10 │ About Your Monitor Back View with Monitor Stand To connect your computer to the monitor using a HDMI cable.
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... in .²) 0.2745 x 0.2745 mm D2721H Active matrix - Lists the regulatory approvals. Monitor Specifications Flat-Panel Specifications Model number Screen type Panel type Viewable image Diagonal Horizontal Active Area Vertical Active Area Area Pixel pitch D2421H Active matrix - Refer to this label if you need to the monitor using a VESA mount or arm. Bottom View 1 23 Label Description 1 AC power connector 2 HDMI connector 3 DP connector Use To connect the monitor power cable. TFT LCD In-Plane Switching Technology 604.7 mm (23.8 in.) 527...
... in .²) 0.2745 x 0.2745 mm D2721H Active matrix - Lists the regulatory approvals. Monitor Specifications Flat-Panel Specifications Model number Screen type Panel type Viewable image Diagonal Horizontal Active Area Vertical Active Area Area Pixel pitch D2421H Active matrix - Refer to this label if you need to the monitor using a VESA mount or arm. Bottom View 1 23 Label Description 1 AC power connector 2 HDMI connector 3 DP connector Use To connect the monitor power cable. TFT LCD In-Plane Switching Technology 604.7 mm (23.8 in.) 527...
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... mode) 16.7 mil colors 5 ms (gray to gray - normal mode) 16.7 mil colors Color Gamut Connectivity Border width (edge of monitor to active area) Adjustability Height adjustable stand Tilt Pivot Security 72% NTSC(CIE 1931) and 83% NTSC(CIE 1976) 1x VGA, 1x HDMI 1.4, 1x Earphone (φ 3.5 mm) 6.25 mm (Side)/6.24 mm (Top)/22.26 mm (Bottom) N/A -5° to 20° N/A Security lock slot (cable lock...
... mode) 16.7 mil colors 5 ms (gray to gray - normal mode) 16.7 mil colors Color Gamut Connectivity Border width (edge of monitor to active area) Adjustability Height adjustable stand Tilt Pivot Security 72% NTSC(CIE 1931) and 83% NTSC(CIE 1976) 1x VGA, 1x HDMI 1.4, 1x Earphone (φ 3.5 mm) 6.25 mm (Side)/6.24 mm (Top)/22.26 mm (Bottom) N/A -5° to 20° N/A Security lock slot (cable lock...
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... - normal mode) 16.7 mil colors Color Gamut 99% sRGB(TYP) Connectivity 3x HDMI 1.4, 1x DP 1.2 Border width (edge of monitor to active area) Adjustability Height adjustable stand Tilt Pivot Security 7.08 mm (Side)/7.02 mm (Top)/19.83 mm (Bottom) 100 mm -3.5° to 21.5° 90° clockwise Security lock slot (cable lock sold separately) Resolution Specifications Model number Scan range • Horizontal • Vertical Maximum preset resolution D2421H/D2721H 30 kHz...
... - normal mode) 16.7 mil colors Color Gamut 99% sRGB(TYP) Connectivity 3x HDMI 1.4, 1x DP 1.2 Border width (edge of monitor to active area) Adjustability Height adjustable stand Tilt Pivot Security 7.08 mm (Side)/7.02 mm (Top)/19.83 mm (Bottom) 100 mm -3.5° to 21.5° 90° clockwise Security lock slot (cable lock sold separately) Resolution Specifications Model number Scan range • Horizontal • Vertical Maximum preset resolution D2421H/D2721H 30 kHz...
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... (typical) Model number D2421H/D2721H/D2421DS RoHS Compliant yes BFR/PVC free Monitor (excluding external cables) no Power Management Modes If you have VESA's DPM compliance display card or software installed in your PC, the monitor automatically reduces its power consumption when not in use. The following table shows the power consumption and signaling of this automatic power-saving feature: D2421H VESA Modes Horizontal Vertical Video Power Power Consumption Sync Sync Indicator Normal operation Active Active Active BLUE 22 W (maximum...
... (typical) Model number D2421H/D2721H/D2421DS RoHS Compliant yes BFR/PVC free Monitor (excluding external cables) no Power Management Modes If you have VESA's DPM compliance display card or software installed in your PC, the monitor automatically reduces its power consumption when not in use. The following table shows the power consumption and signaling of this automatic power-saving feature: D2421H VESA Modes Horizontal Vertical Video Power Power Consumption Sync Sync Indicator Normal operation Active Active Active BLUE 22 W (maximum...
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... monitor until it clicks into the stand base until it locks in the downward direction into place. 2. Setting Up the Monitor Connecting the stand NOTE: The stand is not installed at the factory when shipped. (D2421H/D2721H) NOTE: The stand is installed at the factory when shipped. (D2421DS) NOTE: The graphics are used for attaching the stand that was shipped with the stand. NOTE: The following instructions are attaching a stand...
... monitor until it clicks into the stand base until it locks in the downward direction into place. 2. Setting Up the Monitor Connecting the stand NOTE: The stand is not installed at the factory when shipped. (D2421H/D2721H) NOTE: The stand is installed at the factory when shipped. (D2421DS) NOTE: The graphics are used for attaching the stand that was shipped with the stand. NOTE: The following instructions are attaching a stand...
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Select HDMI input when you are using the DP connector. Select DP input when you are using the HDMI connector. Push / to scan for available input signals. D2421H D2721H Input Source VGA HDMI Auto Input Source VGA HDMI Auto 1:Exit D2421DS Input Source HDMI1 HDMI2 HDMI3 DP Auto 1:Exit VGA HDMI DP Auto 1:Exit Select VGA input when you are using the analog (VGA) connector. Select Auto to select the DP input source. Input Source Use the Input Source menu to select between different video signals that may be connected to select the HDMI input source. Operating the Monitor...
Select HDMI input when you are using the DP connector. Select DP input when you are using the HDMI connector. Push / to scan for available input signals. D2421H D2721H Input Source VGA HDMI Auto Input Source VGA HDMI Auto 1:Exit D2421DS Input Source HDMI1 HDMI2 HDMI3 DP Auto 1:Exit VGA HDMI DP Auto 1:Exit Select VGA input when you are using the analog (VGA) connector. Select Auto to select the DP input source. Input Source Use the Input Source menu to select between different video signals that may be connected to select the HDMI input source. Operating the Monitor...
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... in the neck/arm/back/ shoulders during the breaks. Provides an optimum display environment depending on "Main Menu" can't be selected. Cool Adds blue to screen image for a darker color. Adds green to screen image for cooler white. When you : • Set the screen about Model Name, Input Source, Resolution, H. Frequency, Pixel Clock, Service Tag. Normal Warm Adds red to moisten or lubricate your eyes. • Take regular 20-minute...
... in the neck/arm/back/ shoulders during the breaks. Provides an optimum display environment depending on "Main Menu" can't be selected. Cool Adds blue to screen image for a darker color. Adds green to screen image for cooler white. When you : • Set the screen about Model Name, Input Source, Resolution, H. Frequency, Pixel Clock, Service Tag. Normal Warm Adds red to moisten or lubricate your eyes. • Take regular 20-minute...
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... is properly connected and secure. • Verify that the power outlet is functioning properly using any of the procedures in the video cable connector. • Ensure that the correct input source is selected via the Input Source select button. • Increase brightness & contrast controls via OSD. • Perform monitor self-test feature check. • Check for bent or broken pins in this section, follow the Safety Instructions Common Problems The...
... is properly connected and secure. • Verify that the power outlet is functioning properly using any of the procedures in the video cable connector. • Ensure that the correct input source is selected via the Input Source select button. • Increase brightness & contrast controls via OSD. • Perform monitor self-test feature check. • Check for bent or broken pins in this section, follow the Safety Instructions Common Problems The...
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...; Do not perform any troubleshooting steps. • Contact Dell immediately. Synchronization Problems Screen is secure. • Check for bent or broken pins in the video cable connector. Intermittent Problems Monitor malfunctions on & off Missing Color Picture missing color • Ensure that the video cable connecting the monitor to the computer is connected properly and is secure. • Reset the monitor to Factory Reset. • Perform monitor self-test feature check to determine if the...
...; Do not perform any troubleshooting steps. • Contact Dell immediately. Synchronization Problems Screen is secure. • Check for bent or broken pins in the video cable connector. Intermittent Problems Monitor malfunctions on & off Missing Color Picture missing color • Ensure that the video cable connecting the monitor to the computer is connected properly and is secure. • Reset the monitor to Factory Reset. • Perform monitor self-test feature check to determine if the...
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... Image is turned off the monitor, unplug the power cord, plug back, and then turn on the monitor. • Check whether the OSD menu is blue. OSD does not appear on the screen • Turn off . No picture, the LED • Check the signal source. The picture cannot • Due to different video formats (aspect fill the height or ratio) of DVDs, the monitor may display width of the screen in Color Adjust OSD. Wrong Color Picture color not good • Change the Color...
... Image is turned off the monitor, unplug the power cord, plug back, and then turn on the monitor. • Check whether the OSD menu is blue. OSD does not appear on the screen • Turn off . No picture, the LED • Check the signal source. The picture cannot • Due to different video formats (aspect fill the height or ratio) of DVDs, the monitor may display width of the screen in Color Adjust OSD. Wrong Color Picture color not good • Change the Color...
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... available in your area. For information on your need. 5. Select the appropriate service or support link based on safety instructions, see the Product Information Guide(SERI). Setting Up Your Monitor D2421H/D2721H Setting display resolution to 1920 x 1080 For best performance, set the display resolution to 1920 x 1080 pixels by country and product, and some services may result in exposure to www.dell.com/contactdell 2. Click the Dropdown list of...
... available in your area. For information on your need. 5. Select the appropriate service or support link based on safety instructions, see the Product Information Guide(SERI). Setting Up Your Monitor D2421H/D2721H Setting display resolution to 1920 x 1080 For best performance, set the display resolution to 1920 x 1080 pixels by country and product, and some services may result in exposure to www.dell.com/contactdell 2. Click the Dropdown list of...
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... graphic card provider website for updated driver (for your service tag, and download the latest driver for example, www. Click Advanced display settings. 46 │ Appendix After installing the drivers for your graphics adapter, attempt to set the resolution to 1920 x 1080, please contact Dell to classic desktop. 2. Click Change Display Settings. 4. In Windows 10: 1. Right-click on the desk top and click Display Settings. 2. Click Advanced Display Settings. 3. For Windows 8 or Windows 8.1 only...
... graphic card provider website for updated driver (for your service tag, and download the latest driver for example, www. Click Advanced display settings. 46 │ Appendix After installing the drivers for your graphics adapter, attempt to set the resolution to 1920 x 1080, please contact Dell to classic desktop. 2. Click Change Display Settings. 4. In Windows 10: 1. Right-click on the desk top and click Display Settings. 2. Click Advanced Display Settings. 3. For Windows 8 or Windows 8.1 only...
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... following steps: In Windows Vista, Windows 7, Windows 8 or Windows 8.1: 1. Identify your computer or consider purchasing a graphics adapter that supports the video resolution. Use one of your graphics controller supplier from the description at the top of the Screen Resolution and select 2560 x 1440. 4. Refer to the graphic card provider website for updated driver (for your graphics driver. Setting Up Your Monitor D2421DS Setting display resolution to update the graphics driver: Appendix │ 47...
... following steps: In Windows Vista, Windows 7, Windows 8 or Windows 8.1: 1. Identify your computer or consider purchasing a graphics adapter that supports the video resolution. Use one of your graphics controller supplier from the description at the top of the Screen Resolution and select 2560 x 1440. 4. Refer to the graphic card provider website for updated driver (for your graphics driver. Setting Up Your Monitor D2421DS Setting display resolution to update the graphics driver: Appendix │ 47...
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... adapter that supports these resolutions. NVIDIA, AMD, Intel etc.). 5. Click Change Display Settings. 4. Non-Dell computer In Windows Vista, Windows 7, Windows 8 or Windows 8.1: 1. Click Advanced Settings. 5. NVIDIA, AMD, Intel etc.). 6. Right-click on the desktop and click Personalization. 3. Refer to the graphic card provider website for updated driver (for example, www. NOTE: If you are unable to set the resolution to inquire about a graphics adapter that supports the video resolution. 48...
... adapter that supports these resolutions. NVIDIA, AMD, Intel etc.). 5. Click Change Display Settings. 4. Non-Dell computer In Windows Vista, Windows 7, Windows 8 or Windows 8.1: 1. Click Advanced Settings. 5. NVIDIA, AMD, Intel etc.). 6. Right-click on the desktop and click Personalization. 3. Refer to the graphic card provider website for updated driver (for example, www. NOTE: If you are unable to set the resolution to inquire about a graphics adapter that supports the video resolution. 48...