Related Manuals for Dell D2421H
Summary of Contents for Dell D2421H
- Page 1 Dell Monitor D2421H/D2721H/D2421DS User’s Guide Monitor Model: D2421H/D2721H/D2421DS Regulatory Model: D2421Ho/D2721Ho/D2421DSo...
- Page 2 Copyright © 2020 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. 2020 – 04...
-
Page 3: Table Of Contents
Contents About Your Monitor ....... . .5 Package Contents ..... . 5 Product Features. - Page 4 Safety Instructions..... 45 Contact Dell ......45 Setting Up Your Monitor .
-
Page 5: About Your Monitor
NOTE: Some items may be optional and may not ship with your monitor. Some features or media may not be available in certain countries. Display a. D2421DS b. D2421H/D2721H Stand Riser a. D2421DS b. D2421H c. D2721H Stand base a. -
Page 6: Product Features
Transistor (TFT), Liquid Crystal Display (LCD) Panel with LED backlight. The monitor features include: • D2421H: 60.5 cm (23.8 in.) diagonal viewable image size, 1920 x 1080 resolution, plus full-screen support for lower resolutions. • D2721H: 68.6 cm (27 in.) diagonal viewable image size, 1920 x 1080 resolution, plus full-screen support for lower resolutions. -
Page 7: Identifying Parts And Controls
Power On/Off button LED indicator Back view DELL D2421H DELL D2421H /Flat Panel Monitor /Flat Panel Monitor Model No.: D2421H Model No.: D2421H / Rating: / Rating: 100-240V~ 50/60Hz 0.8A 100-240V~ 50/60Hz 0.8A Made in China Made in China Manufactured date:... - Page 8 Regulatory rating label with Lists the regulatory approvals. Refer to Barcode serial number this label if you need to contact Dell for technical support. Stand release button Release stand from monitor. Bottom View 2 3 4 Label Description AC power connector To connect the monitor power cable.
- Page 9 Secures monitor with security lock (security lock not included). Regulatory rating label with Lists the regulatory approvals. Refer to Barcode serial number this label if you need to contact Dell for technical support. Stand release button Release stand from monitor. Bottom View...
- Page 10 HDMI connector To connect your computer to the monitor using a HDMI cable. VGA connector To connect your computer to the monitor using a VGA cable. D2421DS Front view Label Description Function buttons (For more information, see Operating the Monitor) Power On/Off button LED indicator Back view...
-
Page 11: Monitor Specifications
Secures monitor with security lock (security lock not included). Regulatory rating label with Lists the regulatory approvals. Refer to Barcode serial number this label if you need to contact Dell for technical support. Bottom View Label Description AC power connector To connect the monitor power cable. - Page 12 Pixel per inch (PPI) Viewing angle Horizontal 178° (typical) 178° (typical) Vertical 178° (typical) 178° (typical) Brightness 250 cd/m² (typical) 250 cd/m² (typical) Contrast ratio 1000 to 1 (typical) 1000 to 1 (typical) Faceplate coating Anti-glare with hard-coating Anti-glare with hard-coating 3H hardness 3H hardness Backlight...
- Page 13 -3.5° to 21.5° Pivot 90° clockwise Security Security lock slot (cable lock sold separately) Resolution Specifications Model number D2421H/D2721H D2421DS Scan range • Horizontal 30 kHz to 83 kHz (automatic) 30 kHz to 83 kHz (automatic) • Vertical 50 Hz to 75 Hz (automatic)
- Page 14 480i, 480p, 576i, 576p, 720p, capabilities 1080i, 1080p 1080i, 1080p ( HDMI&DP playback) Preset Display Modes The following table lists the preset modes for which Dell guarantees image size and centering: D2421H/D2721H Horizontal Vertical Sync Polarity Pixel Clock Display Mode...
- Page 15 60.0 241.5 Electrical Specifications Model number D2421H Video input signals • Analog RGB: 0.7 V ± 5 %, 75 ohm input impedance • HDMI 1.4 (HDCP 1.4), 150 mV=<Vp-p=<1560 mV for each differential line, 100 ohm input impedance per differential pair...
- Page 16 120 V: 30 A (Max.) 240 V: 60 A (Max.) Physical Characteristics The following table lists the monitor’s physical characteristics: Model number D2421H D2721H Signal cable type • Analog: D-Sub, 15 pins • Analog: D-Sub, 15 pins • Digital: HDMI, 19 pins •...
- Page 17 Weight: Weight with packaging 4.9 Kg (10.80 lb) 6.0 Kg (13.23 lb) Weight with stand assembly 3.8 Kg (8.38 lb) 4.8 Kg (10.58 lb) and cables Weight without stand 3.2 Kg (7.05 lb) 4.0 Kg (8.82 lb) assembly (For wall mount or VESA mount considerations - no cables) 0.3 Kg (0.66 lb)
- Page 18 Environmental Characteristics Model number D2421H/D2721H/D2421DS Temperature • Operating 0°C to 50°C (32°F to 122°F) • Non-operating Storage: -20°C to 60°C (-4°F to 140°F) Shipping: -20°C to 60°C (-4°F to 140°F) Humidity 20 % to 90 % (non-condensing) • Operating Storage: 5 % to 90 % (non-condensing) •...
- Page 19 Active-off mode Inactive Inactive Blank ORANGE Less than 0.5 W Switch off Less than 0.5 W * Power Consumption P 14.7 W Total Energy Consumption (TEC) 45.7 kWh D2721H VESA Modes Horizontal Vertical Video Power Power Consumption Sync Sync Indicator Normal operation Active Active Active...
- Page 20 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. Activate the computer and monitor to gain access to the OSD. Pin Assignments VGA connector 8 9 10...
- Page 21 HDMI connector 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 22 DP connector Pin number 20-pin side of the connected signal cable ML_LANE3_N ML_LANE3_P ML_LANE2_N ML_LANE2_P ML_LANE1_N ML_LANE1_P ML_LANE0_N ML_LANE0_P AUX _CH_P AUX _CH_N RETURN DP_PWR │ About Your Monitor...
-
Page 23: Plug And Play
For more information on LCD Monitor Pixel Policy, see Dell support site at: www.dell.com/pixelguidelines. About Your Monitor │... -
Page 24: Setting Up The Monitor
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 the purpose of illustration only. Appearance on the computer may vary. - Page 25 D2721H 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 downward direction into the stand base until it clicks into place. 2. Attach the stand assembly to the monitor: a.
-
Page 26: Using The Tilt And Vertical Extension
Using the Tilt and Vertical Extension Tilt With the stand assembly, you can tilt the monitor for the most comfortable viewing angle. D2421H D2721H 5° 5° D2421DS 3.5° │ Setting Up the Monitor... -
Page 27: Rotating The Monitor
NOTE: The stand base is detached when the monitor is shipped from the factory. Vertical Extension NOTE: The stand extends vertically up to 100 mm. The figure below illustrates how to extend the stand vertically. 100mm Rotating the Monitor Before you rotate the monitor, your monitor should be fully vertically extended and fully tilted up to avoid hitting the bottom edge of the monitor. -
Page 28: Connecting Your Monitor
Instructions". NOTE: Do not connect all cables to the computer at the same time. 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. -
Page 29: Removing The Monitor Stand
NOTE: The graphics are used for the purpose of illustration only. Appearance on the computer may vary. To remove the stand: D2421H 1. Place the monitor panel on a soft cloth or cushion. 2. Use a long screwdriver to push the release latch located in a hole just above the stand. - Page 30 4. Press the tenons inwardly and pull the base from stand to remove. D2721H 1. Place the monitor panel on a soft cloth or cushion. 2. Use a screwdriver to loosen the two screws at the top of the stand, Use a long screwdriver to push the release latch located in a hole just above the stand.
-
Page 31: Wall Mounting (Optional)
5. Mount the LCD on the wall by following the instructions that came with the base mounting kit. NOTE: For use only with UL-listed wallD-mount bracket with minimum weight/load bearing capacity of 9.6 Kg (21.16 lb) for D2421H, 12.0 Kg (26.46 lb) for D2721H, 10.8 Kg (23.81 lb) for D2421DS. Setting Up the Monitor... -
Page 32: Operating The Monitor
Use this button to select the OSD menu. When not in OSD menu, directly enters Input Source from a list of VGA, HDMI, Auto (D2421H/D2721H). When not in OSD menu, directly enters Input Source from a list of HDMI1, HDMI2, HDMI3, DP, Auto (D2421DS). -
Page 33: Using The Osd Lock Function
OSD menu and display the main menu. Menu and Icon Description Submenus Auto Adjust Adjust the Horizontal Position, Vertical Position, Phase (Fine (D2421H/ Tune) and Clock (H. Size) of the screen. D2721H) NOTE: Only available for D-SUB input. D2421H D2721H A u t o... - Page 34 Use the Contrast/Brightness menu to adjust the Contrast/ Brightness Brightness/DCR/ECO. D2421H D2721H C o n t r a s t / B r i g h t n e s s C o n t r a s t / B r i g h t n e s s...
- Page 35 Input Source Use the Input Source menu to select between different video signals that may be connected to your monitor. D2421H D2721H I n p u t S o u r c e I n p u t S o u r c e...
- Page 36 Audio Adjust Use the Audio Settings menu to adjust the audio settings. (only for When input source is VGA, “Audio Adjust” option on “Main D2421H) Menu” can’t be selected. A u d i o A d j u s t...
- Page 37 Adds blue to screen image for cooler white. Cool Normal Adds red to screen image for warmer white and richer red. Warm Adds green to screen image for a darker color. ComfortView Optimize eye comfort with a TÜV-certified flicker-free screen. Decreases the level of blue light emitted from the screen to make viewing more comfortable for your eyes.
- Page 38 Manual Image When you select Manual Image Adjust, you can choose H./V. Adjust Position, Clock, Phase, Sharpness, Aspect Ratio and Response Time from the list. (D2421H/D2721H) D2421H D2721H M a n u a l I m a g e A d j u s t...
- Page 39 Setup Menu When you select Setup Menu, you can choose Language Select, OSD Position, OSD Time Out and OSD Background from the list. D2421H D2721H S e t u p M e n u S e t u p M e n u...
- Page 40 If VGA or DP or HDMI cable is not connected, a floating dialog box as shown below appears. The monitor will enter sleep mode, and the LED indicates color will be orange. No Signal Troubleshooting for more information. │ Operating the Monitor...
-
Page 41: Troubleshooting
Troubleshooting WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions Common Problems The following table contains general information about common monitor problems you might encounter and the possible solutions. Common Symptoms What You Possible Solutions Experience No Video/Power LED No picture... - Page 42 • 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: www.dell.com/pixelguidelines. Stuck-on Pixels LCD screen has • Cycle power on-off.
- Page 43 • Restart the computer in the safe mode. Safety-Related Issues Visible signs of • Do not perform any troubleshooting smoke or sparks steps. • Contact Dell immediately. Intermittent Problems Monitor • Ensure that the video cable connecting malfunctions on the monitor to the computer is &...
-
Page 44: Product-Specific Problems
Wrong Color Picture color not • Change the Color Vision Mode in the good Color Adjust OSD to Graphics or Video depending on the application. • Try different User Color in Color Adjust OSD. Adjust R/G/B value in User Color OSD if the Color Vision Mode is turned off. -
Page 45: Appendix
Contact Dell 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. Availability varies by country and product, and some services may not be available in your area. - Page 46 2. After installing the drivers for your graphics adapter, attempt to set the resolution to 1920 x 1080 again. NOTE: If you are unable to set the resolution to 1920 x 1080, please contact Dell to inquire about a graphics adapter that supports these resolutions.
-
Page 47: Setting Up Your Monitor
3. Click Display adapter properties. 4. Identify your graphics controller supplier from the description at the top of the window (e.g. NVIDIA, AMD, Intel etc.). 5. Refer to the graphic card provider website for updated driver (for example, www. AMD.com or www.NVIDIA.com). - Page 48 2. After installing the drivers for your graphics adapter, attempt to set the resolution to 2560 x 1440 again. NOTE: If you are unable to set the resolution to 2560 x 1440, please contact Dell to inquire about a graphics adapter that supports these resolutions.
-
Page 49: Maintenance Guidelines
Maintenance Guidelines Caring for Your Monitor CAUTION: Read and follow the safety instructions before cleaning the monitor. WARNING: Before cleaning the monitor, unplug the monitor power cable from the electrical outlet. For best practices, follow the instructions in the list below while unpacking, cleaning, or handling your monitor: •...