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| About your monitor

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S2421HS/S2721HS

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S2421HSX/S2721HSX

Label Description

Use

Security lock slot

Secures monitor with security cable lock(sold
separately).

Power connector

Connect the power cable (shipped with your
monitor).

DisplayPort

Connect your computer with the DisplayPort
cable (optional).

HDMI port

Connect your computer with the HDMI cable
(shipped with your monitor).

Audio line-out port

Connect speakers to playback audio through
HDMI or DisplayPort audio channels.
Only two-channel audio is supported.

NOTE:

The audio line-out port does not support

headphones.

Содержание S2421HS

Страница 1: ...Model S2421HS S2721HS S2421HSX S2721HSX Regulatory model S2421Ht S2721Ht Dell S2421HS S2721HS S2421HSX S2721HSX Monitor User s Guide ...

Страница 2: ...r loss of data if instructions are not followed WARNING A WARNING indicates a potential for property damage personal injury or death 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 07 Rev X05 ...

Страница 3: ...reset 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...

Страница 4: ...ing 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 Self test 51 Built in diagnostics 52 Common problems 53 Product specific problems 54 Appendix 56 FCC n...

Страница 5: ...ed to operate with the AC power available in your location Keep the monitor in room temperature Excessive cold or hot conditions can have an adverse effect on the liquid crystal of the display Do not subject the monitor to severe vibration or high impact conditions For example do not place the monitor inside a car trunk Unplug the monitor when it is going to be left unused for an extended period o...

Страница 6: ...ed 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 Display S2421HS S2721HS S2421HSX S2721HSX Stand riser S2421HS S2721HS S2421HSX S2721HSX Stand base Power cable varies by country HDMI cable ...

Страница 7: ...s Association VESA 100 mm mounting holes for flexible mounting solutions Ultra thin bezel minimizes the bezel gap in multi monitor usage enabling easier set up with an elegant viewing experience Extensive digital connectivity with HDMI DP helps future proof your monitor Plug and play capability if supported by your computer On Screen Display OSD adjustments for ease of set up and screen optimizati...

Страница 8: ...g parts and controls Front view 1 2 S2421HS S2721HS 1 2 S2421HSX S2721HSX Label Description Use 1 Function buttons For more information see Operating the Monitor 2 Power on off button with LED indicator To turn the monitor on or off ...

Страница 9: ... label Lists the regulatory approvals 3 Stand release button Releases stand from monitor 4 Barcode serial number and Service Tag label Refer to this label if you need to contact 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 5 Cable management sl...

Страница 10: ...nector Connect the power cable shipped with your monitor 3 DisplayPort Connect your computer with the DisplayPort cable optional 4 HDMI port Connect your computer with the HDMI cable shipped with your monitor 5 Audio line out port Connect speakers to playback audio through HDMI or DisplayPort audio channels Only two channel audio is supported NOTE The audio line out port does not support headphone...

Страница 11: ...745 mm x 0 2745 mm 0 3114 mm x 0 3114 mm Pixel per inch PPI 92 56 81 59 Viewing angle Horizontal 178 typical Vertical 178 typical Brightness 250 cd m typical 300 cd m typical Contrast ratio 1 000 to 1 typical Display screen coating Anti glare treatment of the front polarizer 3H hard coating Backlight LED edgelight system Response Time Gray to Gray 8 ms normal 5 ms fast 4 ms extreme Color depth 16 ...

Страница 12: ...3 kHz 30 kHz to 83 kHz Vertical scan range 48 Hz to 75 Hz Maximum preset resolution 1920 x 1080 at 60 Hz Video display capabilities HDMI DP alternate mode 480i 480p 576i 576p 720p 1080i 1080p Preset display modes Display Mode Horizontal Frequency kHz Vertical Frequency Hz Pixel Clock MHz Sync Polarity Horizontal Vertical VGA 720 x 400 31 5 70 0 28 3 VGA 640 x 480 31 5 60 0 25 2 VESA 640 x 480 37 5...

Страница 13: ...s Model S2421HS S2421HSX S2721HS S2721HSX Connector type 1 x HDMI1 4 port 1 x DisplayPort 1 2 1 x Audio line out port Signal cable type 1 8 m HDMI1 4 cable Dimensions with stand Height extended 446 8 mm 17 59 in 509 0 mm 20 04 in Height compressed 346 8 mm 13 65 in 399 0 mm 15 71 in Width 537 8 mm 21 17 in 609 9 mm 24 01 in Depth 159 7 mm 6 29 in 174 7 mm 6 88 in Dimensions without stand Height 32...

Страница 14: ...les Arsenic Free glass and Mercury Free for the panel only Temperature Operating 0 C to 40 C 32 F to 104 F Non operating 20 C to 60 C 4 F to 140 F Humidity Operating 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 S2421HS S2421HSX 78 48 BTU hour maximum 61 42 BTU hour typical S272...

Страница 15: ...te 23 W maximum 18 W typical Active off mode Inactive Inactive Off White Glowing Less than 0 3 W Switch off Off Less than 0 3 W Power Consumption PON 11 04 W Total Energy Consumption TEC 35 04 kWh S2721HS S2721HSX VESA modes Horizontal sync Vertical sync Video Power indicator Power consumption Normal operation Active Active Active White 31 W maximum 20 W typical Active off mode Inactive Inactive O...

Страница 16: ...onsumption in OFF mode can only be achieved by disconnecting the AC mains cable from the monitor Maximum power consumption with maximum luminance This document is informational only and reflects laboratory performance Your product may perform differently depending on the software components and peripherals you ordered and shall have no obligation to update such information Accordingly the customer...

Страница 17: ... 8 0 version TEC Total energy consumption in kWh as defined in Energy Star 8 0 version Pin assignments DisplayPort Pin number 20 pin side of the connected signal cable Pin number 20 pin side of the connected signal cable 1 ML3 n 11 GND 2 GND 12 ML0 p 3 ML3 p 13 CONFIG1 4 ML2 n 14 CONFIG2 5 GND 15 AUX CH p 6 ML2 p 16 GND 7 ML1 n 17 AUX CH n 8 GND 18 Hot Plug Detect 9 ML1 p 19 Return 10 ML0 n 20 DP_...

Страница 18: ...2 2 TMDS DATA 2 SHIELD 3 TMDS DATA 2 4 TMDS DATA 1 5 TMDS DATA 1 SHIELD 6 TMDS DATA 1 7 TMDS DATA 0 8 TMDS DATA 0 SHIELD 9 TMDS DATA 0 10 TMDS CLOCK 11 TMDS CLOCK SHIELD 12 TMDS CLOCK 13 CEC 14 Reserved N C on device 15 DDC CLOCK SCL 16 DDC DATA SDA 17 DDC CEC Ground 18 5 V POWER 19 HOT PLUG DETECT ...

Страница 19: ...ttings Most monitor installations are automatic you can select different settings if desired For more information about changing the monitor settings see Operating the monitor LCD monitor quality and pixel policy During the LCD monitor manufacturing process it is not uncommon for one or more pixels to become fixed in an unchanging state which are hard to see and do not affect the display quality o...

Страница 20: ...m your monitor and gaze at a distant object at 20 feet away for at least 20 seconds during the breaks 5 Perform stretches to relieve tension in the neck arm back and shoulders during the breaks Make sure that the monitor screen is at eye level or slightly lower when you are sitting in front of the monitor Adjust the tilt of the monitor its contrast and brightness settings Adjust the ambient lighti...

Страница 21: ...and or get up and walk around at regular intervals Keep the area under your desk clear of obstructions and cables or power cords that may interfere with comfortable seating or present a potential trip hazard monitor screen at or below eye level monitor and keyboard positioned directly in front of the user feet flat on the floor wrists relaxed and flat ...

Страница 22: ...all cables from the monitor Place the monitor in the original box with the original packing materials Hold the bottom edge and the side of the monitor firmly without applying excessive pressure when lifting or moving the monitor When lifting or moving the monitor ensure the screen is facing away from you and do not press on the display area to avoid any scratches or damage When transporting the mo...

Страница 23: ...clean your anti static screen lightly dampen a soft clean cloth with water If possible use a special screen cleaning tissue or solution suitable for the anti static coating Do not use benzene thinner ammonia abrasive cleaners or compressed air Use a lightly dampened warm cloth to clean the monitor Avoid using detergent of any kind as some detergents leave a milky film on the monitor If you notice ...

Страница 24: ...tand that you purchased from any other source follow the set up instructions that were included with the stand CAUTION Place monitor of a flat clean and soft surface to avoid scratching the display panel To attach the monitor stand 1 Align the tabs on the stand base with the slots on the stand riser 2 Insert the stand riser on the stand base firmly 3 Open the screw handle at the bottom of the stan...

Страница 25: ... slots on the display back cover and press down the stand assembly to snap it into place CAUTION Hold the stand riser firmly when lifting the monitor to avoid any accidental damage 5 Hold the stand riser and lift the monitor carefully then place it on a flat surface 4 4 5 ...

Страница 26: ... a stand that you purchased from any other source follow the set up instructions that were included with the stand Tilt Swivel and Vertical Extension With the stand attached to the monitor you can tilt the monitor for the most comfortable viewing angle 100 mm 5 30 30 21 S2421HS S2421HSX 110 mm 5 30 30 21 S2721HS S2721HSX NOTE The stand is detached when the monitor is shipped from the factory ...

Страница 27: ...tings on your computer after rotation After you have rotated the display complete the procedure given below to configure the display settings on your computer NOTE If you are using the monitor with a non Dell computer go to the graphics card manufacturer s website or your computer manufacturer website for information on how to rotate the contents of your display To configure the Display Settings 1...

Страница 28: ...ore you begin any of the procedures in this section follow the Safety Instructions To connect your monitor to the computer 1 Turn off your computer 2 Connect the DisplayPort or HDMI cable from your monitor to the computer 3 Turn on your monitor 4 Select the correct input source from the OSD Menu on your monitor and then turn on your computer Connecting the HDMI cable HDMI HDMI Connecting the DP ca...

Страница 29: ...ng 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 on using the Kensington lock purchased separately see the documentation that is shipped with the lock Secure your monitor to a table using the Kensington security lock NOTE The image is for the purpose of illustration only Appearance of the lock ...

Страница 30: ...cable 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 To remove the stand 1 Place a flat cushion or a sitting mat near the edge of a table and place the monitor on it with the display facing down 2 Press and hold the stand release button 3 Lift the stand up ...

Страница 31: ...monitor on it with the display facing down 2 Remove the stand 3 Using a Phillips crosshead screwdriver remove the four screws that secure the back panel 4 Connect the mounting bracket from the wall mounting kit to the monitor 5 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 mini...

Страница 32: ...n 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 3 4 5 1 2 ...

Страница 33: ... to choose from a list of input sources 3 Menu Use this menu button to launch the on screen display OSD and select the OSD menu See Accessing the Menu System 4 Exit Use this button to go back to the main menu or exit the OSD main menu 5 Power with power light indicator Use the Power button to turn the monitor On and Off The white LED indicates the monitor is On and fully functional Une LED blanche...

Страница 34: ...lay Menu Others Brightness Contrast Language Transparency Timer Lock Reset Menu Power Button Menu Power Buttons Disable Menu Buttons 2 The following message appears Dell 24 27 Monitor Are you sure you want to lock the Menu Buttons To unlock the Buttons refer to the User s Guide Yes No S2421HS S2721HS S2421HSX S2721HSX 3 Select Yes to lock the buttons Once locked pressing any control button will di...

Страница 35: ...user to turn off the monitor using the power button 3 Menu and Power Buttons lock Use this option to lock OSD menu and power button to turn off the monitor 4 Built in Diagnostics 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 The following table describes the options to unlo...

Страница 36: ...this option to unlock OSD menu and power button to turn off the monitor 4 Built in Diagnostics 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 adjust the image settings 2 3 1 Front Panel Button Description 1 Up Down Use the Up increase and Down decrease buttons to adjust items in the OSD menu 2 OK Use the OK...

Страница 37: ... menu and display the main menu Dell 24 27 Monitor Input Source Color Personalize Display Menu Others Brightness Contrast 75 75 2 Press the and buttons to move between options As you move from one icon to another the option name is highlighted 3 Press the or or button once to activate the highlighted option 4 Press the and buttons to select the desired parameter 5 Press to enter the slide bar and ...

Страница 38: ...ghtness Brightness adjusts the luminance of the backlight minimum 0 maximum 100 Press the button to increase brightness Press the button to decrease brightness Contrast Adjust the Brightness first and then adjust Contrast only if further adjustment is necessary Press the button to increase contrast and press the button to decrease contrast between 0 and 100 Contrast adjusts the difference between ...

Страница 39: ...Reset Input Source On Auto select DP Use to select the DP input source HDMI Use to select the HDMI input source Auto Select Use to select Auto Select to scan for available input signals Reset Input Source Resets your monitor s Input Source settings to the factory defaults Color Use the Color menu to adjust the color setting mode Dell 24 27 Monitor Input Source Color Personalize Display Menu Others...

Страница 40: ...wing more comfortable for your eyes WARNING The possible long term effects of blue light emission from the monitor may cause personal injury such as digital eye strain eye fatigue and damage to the eyes Using monitor for extended periods of time may also cause pain in parts of body such as neck arm back and shoulder For more information see Ergonomics Movie Loads color settings ideal for movies FP...

Страница 41: ...yer using the HDMI DP cable YPbPr Select this option if your DVD player supports only YPbPr output Dell 24 27 Monitor Input Source Color Personalize Display Menu Others Brightness Contrast Reset Color Input Color Format Preset Modes RGB YPbPr Hue Use or to adjust the hue from 0 to 100 NOTE Hue adjustment is available only for Movie and FPS RTS RPG mode Saturation Use or to adjust the saturation fr...

Страница 42: ...ess Contrast Sharpness Response Time 50 Normal Wide 16 9 Aspect Ratio Reset Display Aspect Ratio Select the image ratio between 16 9 Wide 4 3 and 5 4 Sharpness Makes the image look sharper or softer Use or to adjust the sharpness from 0 to 100 Response Time Allows you to set the Response Time to Normal Fast or Extreme Reset Display Restores the display settings to factory defaults ...

Страница 43: ... Contrast English Language Transparency Timer 20 Disable 20s Lock Reset Menu Language Set the OSD display to one of eight languages English Spanish French German Brazilian Portuguese Russian Simplified Chinese or Japanese Transparency Select this option to change the menu transparency by using and min 0 max 100 Timer OSD Hold Time Sets the length of time the OSD remains active after you press a bu...

Страница 44: ...uage Transparency Timer Lock Reset Menu Power Button Menu Power Buttons Disable Menu Buttons 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 unlock the buttons Reset Menu Restore the menu settings...

Страница 45: ...n LED Reset Personalization Preset Modes Shortcut Key 1 Shortcut key 1 Select from Preset Modes Brightness Contrast Input Source Aspect Ratio set as shortcut key 1 Shortcut key 2 Select from Preset Modes Brightness Contrast Input Source Aspect Ratio set as shortcut key 2 Power Button LED Allows you to set the state of the power light to save energy Reset Persona lization Restores shortcut keys to ...

Страница 46: ...Tag Factory Reset Display Info Reset Others Display Info Displays the monitor s current settings DDC CI DDC CI Display Data Channel Command Interface allows you to adjust the monitor settings using software on your computer Select Off to turn off this feature Enable this feature for best user experience and optimum performance of your monitor Dell 24 27 Monitor Input Source Color Personalize Displ...

Страница 47: ...nitor 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 Reset Others Restores other settings such as DDC CI to factory defaults Factory Reset Restores all preset values to the factory default ...

Страница 48: ... for the Horizontal and Vertical frequency ranges addressable by this monitor Recommended mode is 1920 x 1080 You can see the following message before the DDC CI function is disabled S2421HS S2421HSX S2721HS S2721HSX Dell 24 Monitor The function of adjusting display setting using PC application will be disabled Do you wish to disable DDC CI function Yes No S2421HS S2421HSX Dell 27 Monitor The func...

Страница 49: ... the corresponding cable is not connected a floating dialog box as shown below appears S2421HS S2421HSX S2721HS S2721HSX Dell 24 Monitor The display will go into Standby mode in 4 minutes No DP Cable www dell com S2421HS www dell com S2421HSX S2421HS S2421HSX or Dell 24 Monitor No HDMI Cable www dell com S2421HS S2421HS S2421HSX www dell com S2421HSX The display will go into Standby mode in 4 minu...

Страница 50: ...play Settings 2 Click Advanced display settings 3 Click the dropdown list of Resolution and select 1920 x 1080 4 Click Apply If you do not see the 1920 x 1080 as an option you may need to update your graphics driver 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...

Страница 51: ...n 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 S2421HS S2421HSX S2721HS S2721HSX Dell 24 Monitor The display will go into Standby mode in 4 minutes No DP Cable www dell com S2421HS www dell com S2421HSX S2421HS S2421HSX or Dell 24 Monitor No HDMI Cable www dell com S2421HS S2421HS S2421H...

Страница 52: ...rticles on the surface of the screen 2 Press and hold Button 4 for four seconds a menu appears on the screen 3 Select the built in diagnostics option A gray screen appears 4 Carefully inspect the screen for abnormalities 5 Press Button 1 on the front panel again The color of the screen changes to red 6 Inspect the display for any abnormalities 7 Repeat steps 5 and 6 to inspect the display when it ...

Страница 53: ... broken pins in the video cable connector Run the built in diagnostics Ensure that the correct input source is selected in the Input Source menu Missing Pixels LCD screen has spots Cycle power on off 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 support monitors ...

Страница 54: ...ge the settings of the Preset Modes in the Color menu OSD depending on the application Adjust R G B value under 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 diagnostics Image retention from a static image left on the monitor for a long period of time Faint shadow from the static image displayed appears on the screen Use the ...

Страница 55: ...cture the LED light is white Check the signal source Ensure the computer is not in the power saving mode by moving the mouse or pressing any key on the keyboard Check whether the signal cable is plugged in properly Re plug the signal cable if necessary Reset the computer or video player The picture does not fill the entire screen The picture cannot fill the height or width of the screen Due to dif...

Страница 56: ...es 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 Availability varies by country and product and some services may not be available in your area Online technical assistance www dell com...

Страница 57: ...22 6 12 70 537 8 21 17 446 8 17 59 5 4 0 21 5 4 0 21 5 4 0 21 293 2 11 54 124 2 4 89 43 9 1 73 159 7 6 29 14 2 0 56 1 8 0 07 53 8 2 12 153 6 6 05 20 7 0 82 237 0 9 33 361 5 14 23 100 0 2x 3 94 122 0 2x 4 80 193 2 7 61 12 5 0 49 325 4 12 81 35 2 1 38 346 8 13 65 Unit Dimension Drawing S2421HS HSX Outline Dimension Z 0 Z 34 7 1 37 Z 43 0 1 69 Z 44 0 1 73 4x M4x10 4x Tilt mm inch Nominal Not to scale...

Страница 58: ...3 24 597 9 23 54 6 0 0 24 Swivel 30 Swivel 30 257 0 10 12 Lift 110 0 4 33 29 9 1 18 174 2 6 86 639 8 25 19 402 8 15 86 399 0 15 71 33 5 1 32 191 2 7 53 45 3 1 78 224 8 8 85 12 5 0 49 364 8 14 36 5 21 9 6 0 38 54 9 2 16 174 7 6 88 181 8 7 16 145 3 5 72 334 8 13 18 512 8 20 19 100 0 2x 3 94 122 0 2x 4 80 6 0 0 24 Pivot 90 Pivot 90 21 0 0 83 Unit Dimension Drawing mm inch Nominal Not to scale ...

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