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Troubleshooting

Common problems

The following table contains general information about common monitor problems
you might encounter and the possible solutions:

Common
Symptoms

Possible Solutions

No Video/Power
LED off

∞

Ensure 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 other electrical equipment.

∞

Ensure that the power button is pressed.

∞

Ensure that the correct input source is selected via the

Input Source

menu.

No Video/Power
LED on

∞

Increase brightness and contrast controls using the OSD.

∞

Perform monitor self-test feature check.

∞

Check for bent or broken pins in the video cable
connector.

∞

Run the built-in diagnostics.

∞

Ensure that the correct input source is selected via the

Input Source

menu.

Poor Focus

∞

Eliminate video extension cables.

∞

Reset the monitor to Factory Settings (

Factory Reset

∞

Change the video resolution to the correct aspect ratio.

Shaky/Jittery Video

∞

Reset the monitor to Factory Settings (

Factory Reset

∞

Check environmental factors.

∞

Relocate the monitor and test in another room.

Missing Pixels

∞

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

Содержание 210-AVKX

Страница 1: ...Monitor Model P2421D Regulatory Model P2421Dc Dell 24 Monitor P2421D 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 02 Rev A00 ...

Страница 3: ...ications 13 Resolution specifications 14 Supported video modes 14 Preset display modes 15 Electrical specifications 15 Physical characteristics 16 Environmental characteristics 17 Power management modes 18 Plug and play capability 24 LCD monitor quality and pixel policy 24 Maintenance guidelines 24 Cleaning your monitor 24 Setting up the monitor 25 Attaching the stand 25 ...

Страница 4: ...D menu 34 Accessing the OSD menu 34 Menu and Power button lock 45 OSD warning messages 47 Setting up your monitor 50 Setting the maximum resolution 50 If you have a Dell desktop or a Dell portable computer with internet access 50 If you have a non Dell desktop portable computer or graphics card 51 Using the tilt swivel and vertical extension 52 Tilt Swivel 52 Vertical Extension 52 Rotating the Mon...

Страница 5: ... 5 Common problems 57 Product specific problems 61 Appendix 62 Safety Instructions 62 FCC notices U S Only and other regulatory information62 Contacting Dell 63 ...

Страница 6: ...nsure that you have received all the components and see Contacting Dell for more information if something is missing NOTE Some items may be optional and may not ship with your monitor Some features or media may not be available in certain countries Monitor Stand riser Stand base Power cable varies by countries ...

Страница 7: ...About your monitor 7 DP 1 2 cable 1 8 m length USB 3 0 upstream cable enables the USB ports on the monitor 1 8 m length Quick Setup Guide Safety and Regulatory Information ...

Страница 8: ...Digital connectivity with DisplayPort and HDMI Equipped with 1 USB upstream port and 4 USB downstream ports Plug and play capability if supported by your system On Screen Display OSD adjustments for ease of set up and screen optimization Software and documentation media includes an Information File INF Image Color Matching File ICM and product documentation Security lock slot Stand lock Capability...

Страница 9: ...Front view 1 2 Control buttons Label Description Use 1 Function buttons Use the function buttons to adjust items in the OSD menu For more information see Using the control buttons 2 Power On Off button Use the power button to turn the monitor On and Off ...

Страница 10: ... cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired opera on XXXXX R33037 RoHS 䝕 ޛ 100V 1 6 A 50 60 Hz X X X X X X X X IS 13252 Part 1 IEC 60950 1 R 41018660 www bis gov in xxxxxxxxxxxxx R R TPF P2421Dc 㐔㷡㢬 ڕ TPV Electronics Fujian Co Ltd for Korea 㥐㦤㣄 ڕ L T Display Technology Fujian Ltd for Korea 080 200 3800 SVC Tag ...

Страница 11: ...de view 1 Label Description Use 1 USB 3 0 downstream port x 2 Connect your USB device NOTE To use this port you must connect the USB cable shipped with your monitor to the USB upstream port on the monitor and to your computer ...

Страница 12: ...k feature To lock the stand to the monitor using a M3 x 6 mm screw screw not included 4 HDMI port Connect your computer with HDMI cable 5 DisplayPort Connect your computer with DisplayPort cable shipped with your monitor 6 USB 3 0 upstream port Connect the USB cable from this port to your computer to enable the USB ports on your monitor 7 USB 2 0 downstream ports x 2 Connect your USB device NOTE T...

Страница 13: ...Pixel pitch 0 2058 mm x 0 2058 mm Pixel per inch PPI 123 Viewing angle Horizontal Vertical 178 typical 178 typical Luminance output 300 cd m typical Contrast ratio 1000 to 1 typical Faceplate coating Anti glare with 3H hardness Haze 25 Backlight LED edgelight system Response time Gray to Gray 8 ms Normal 5 ms Fast Color depth 16 7 Million colors 8 Bit 6 Bit A FRC Color gamut 99 sRGB Connectivity 1...

Страница 14: ...isplay manager compatibility Easy Arrange and other key features Security Security lock slot cable lock optional purchase Resolution specifications Model P2421D Horizontal scan range 29 kHz to 113 kHz Vertical scan range 49 Hz to 75 Hz automatic Maximum preset resolution 2560 x 1440 at 60 Hz Supported video modes Model P2421D Video display capabilities HDMI DP 480i 480p 576i 576p 720p 1080i 1080p ...

Страница 15: ... 0 60 0 108 0 VESA 1280 x 1024 79 9 75 0 135 0 VESA 1600 x 1200 75 0 60 0 162 0 VESA 1680 x 1050 65 3 60 0 146 3 VESA 1920 x 1080 67 5 60 0 148 5 VESA 1920 x 1200 74 6 59 9 193 3 VESA 2048 x 1080 66 6 60 0 147 2 VESA 2560 x 1440 88 8 60 0 241 5 Electrical specifications Model P2421D Video input signals HDMI 1 4 600 mV for each differential line 100 ohm input impedance per differential pair DP 1 2 ...

Страница 16: ...imensions without stand Height 322 1 mm 12 68 in Width 537 8 mm 21 17 in Depth 42 7 mm 1 68 in Stand dimensions Height extended 400 8 mm 15 78 in Height compressed 353 4 mm 13 91 in Width 206 0 mm 8 11 in Depth 166 0 mm 6 54 in Weight Weight with packaging 7 29 kg 16 07 lb Weight with stand assembly and cables 5 36 kg 11 82 lb Weight without stand assembly no cables 3 37 kg 7 43 lb Weight of stand...

Страница 17: ... requirements Arsenic free glass and Mercury free for the panel only Energy Gauge shows the energy level being consumed by the monitor in real time Temperature Operating 0 C to 40 C 32 F to 104 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 Operating 10 to 80 non condensing Non operating Storage 10 to 90 non condensing Shipping 10 to 90 non condensing...

Страница 18: ... Inactive Blanked White Glowing Less than 0 3 W Switch off Off Less than 0 3 W Power Consumption PON 16 W Total Energy Consumption TEC 51 kWh Maximum power consumption with max luminance and USB active 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 obliga...

Страница 19: ...About your monitor 19 NOTE PON Power consumption of On Mode as defined in Energy Star 8 0 version TEC Total energy consumption in KWh as defined in Energy Star 8 0 version ...

Страница 20: ...onnector Pin Number 20 pin Side of the Connected Signal Cable 1 ML0 p 2 GND 3 ML0 n 4 ML1 p 5 GND 6 ML1 n 7 ML2 p 8 GND 9 ML2 n 10 ML3 p 11 GND 12 ML3 n 13 GND 14 GND 15 AUX p 16 GND 17 AUX n 18 Hot Plug Detect 19 Re PWR 20 3 3 V DP_PWR ...

Страница 21: ...ansfer Speed Data Rate Power Consumption Super speed 5 Gbps 4 5 W Max each port High speed 480 Mbps 4 5 W Max each port Full speed 12 Mbps 4 5 W Max each port Transfer Speed Data Rate Power Consumption High speed 480 Mbps 2 5 W Max each port Full speed 12 Mbps 2 5 W Max each port Low speed 1 5 Mbps 2 5 W Max each port USB 3 0 upstream connector Pin Number 9 pin Side of the Connector 1 VCC 2 D 3 D ...

Страница 22: ...SSRX 9 SSRX USB 3 0 downstream connector Pin Number 9 pin Side of the Connector 1 VCC 2 D 3 D 4 GND 5 SSRX 6 SSRX 7 GND 8 SSTX 9 SSTX USB 2 0 downstream connector Pin Number 4 pin Side of the Connector 1 VCC 2 DMD 3 DPD 4 GND ...

Страница 23: ... 0 downstream side NOTE USB 3 0 functionality requires a USB 3 0 capable computer NOTE The monitor s USB interface works only when the monitor is On or in the power save mode If you turn Off the monitor and then turn it On the attached peripherals may take a few seconds to resume normal functionality ...

Страница 24: ...support monitors Maintenance guidelines Cleaning your monitor WARNING Before cleaning the monitor unplug the monitor power cable from the electrical outlet CAUTION Read and follow the Safety Instructions before cleaning the monitor For best practices follow the instructions in the list below while unpacking cleaning or handling your monitor To clean your screen lightly dampen a soft clean cloth wi...

Страница 25: ... respective stand setup guide for the set up instructions To attach the monitor stand 1 Follow the instructions on the flaps of carton to remove the stand from the top cushion that secures it 2 Insert the stand base blocks fully into the stand slot 3 Lift the screw handle and turn the screw clockwise 4 After fully tightening the screw fold the screw handle flat within the recess 2 1 3 5 Lift the c...

Страница 26: ...onitor 6 Attach the stand assembly to the monitor a Fit the two tabs on the upper part of the stand to the groove on the back of the monitor b Press the stand down till it snaps into place 2 1 7 Place the monitor upright ...

Страница 27: ...the monitor To connect your monitor to the computer 1 Turn Off your computer and disconnect the power cable 2 Connect the DP cable from your monitor to the computer Connecting the DP and USB 3 0 cable DP DP USB USB 1 Connect the USB upstream cable shipped with your monitor to an appropriate USB 3 0 port on your computer See Bottom view for details 2 Connect the USB 3 0 peripherals to the downstrea...

Страница 28: ...28 Setting up the monitor Organizing cables Use the cable management slot to route the cables connected to your monitor ...

Страница 29: ... clean surface NOTE The following procedure is applicable only for the stand that shipped with your monitor If you are connecting a third party stand see the documentation that shipped with the stand To remove the stand 1 Place the monitor on a soft cloth or cushion 2 Press and hold the stand release button 3 Lift the stand up and away from the monitor 2 3 ...

Страница 30: ...f the desk 2 Remove the stand See Removing the stand for details 3 Remove the four screws that secure the panel to the monitor 4 Attach the mounting bracket from the wall mounting kit to the monitor 5 To mount the monitor on the wall see the documentation that shipped with the wall mounting kit NOTE For use only with UL or CSA or GS listed wall mount bracket with minimum weight load bearing capaci...

Страница 31: ...monitor 31 Operating your monitor Power on the monitor Press the button to turn on the monitor Language options English 简体中文日本語 Please select language Español Français Deutsch Português Brasil Pусский Dell 24 Monitor ...

Страница 32: ...2 Shortcut key Input Source Use the input source menu to select between the different video signals that may be connected to your monitor 3 Menu Use the Menu button at launch your on screen display OSD and select the OSD menu See Accessing the OSD menu 4 Exit Use this button to go back to the main menu or exit the OSD main menu 5 Power On Off button with LED indicator Use the power button to turn ...

Страница 33: ...mage settings 1 2 3 4 Control Buttons Description 1 Up Use the Up button to increase values or move up in a menu 2 Down Use the Down button to decrease values or move down in a menu 3 OK Use the OK button to confirm your selection in a menu 4 Back Use the Back button to go back to the previous menu ...

Страница 34: ...olor Display Others Personalize Menu Brightness Contrast Dell 24 Monitor 75 75 2 Press the and buttons to move between the setting options As you move from one icon to another the option is highlighted 3 Press the or or button once to activate the highlighted option 4 Press and button to select the desired parameter 5 Press and then use the and buttons according to the indicators on the menu to ma...

Страница 35: ...justs the luminance of the backlight Press the button to increase the brightness and press the button to decrease the brightness min 0 max 100 Contrast Adjust the brightness first and then adjust the contrast only if further adjustment is necessary Press the button to increase the contrast and press the button to decrease the contrast min 0 max 100 The contrast function adjusts the degree of diffe...

Страница 36: ...when you are using the DP connector Push to select the DP input source HDMI Select HDMI input when you are using the HDMI con nector Push to select the HDMI input source Auto Select Select auto select to scan for available input signals Reset Input Source Select this option to restore default Input Source Color Use color to adjust the color setting mode Preset Modes Input Color Format Reset Color ...

Страница 37: ...ut 20 to 28 in 50 70 cm from your eyes Blink frequently to moisten or rewet your eyes when working with the monitor Take regular and frequent breaks for 20 minutes every two hours Look away from your monitor and gaze at a distant object at 20 feet away for at least 20 seconds dur ing the breaks Perform stretches to relieve tension in the neck arm back shoulders during the breaks Movie Loads color ...

Страница 38: ...connected to a computer or DVD player using the HDMI cable YPbPr Select this option if your DVD player supports only YPbPr output Preset Modes Input Color Format Color Display Others Personalize Menu Brightness Contrast Dell 24 Monitor Input Source YPbPr RGB Reset Color Hue This feature can shift the color of the video image to green or purple This is used to adjust the desired flesh tone color Us...

Страница 39: ...t Color Allows your monitor color settings to the factory settings Display Use the display to adjust image Aspect Ratio Sharpness Response Time Reset Display Display Others Personalize Menu Brightness Contrast Dell 24 Monitor 50 Wide 16 9 Normal Input Source Color Aspect Ratio Adjusts the image ratio to wide 16 9 4 3 or 5 4 Sharpness This feature can make the image look sharper or softer Use or to...

Страница 40: ...lified Chinese or Japanese Rotation Rotates the OSD by 90 degrees counter clockwise You can adjust the menu according to your display rotation Transparency Select this option to change the menu transparency by pressing the and buttons from 0 to 100 Timer OSD hold time sets the length of time the OSD will remain active after the last time you pressed a button Use or to adjust the slider in 1 second...

Страница 41: ... Rota tion to set the shortcut key 1 Shorout Key 1 Aspect Ratio USB Display Others Personalize Menu Brightness Contrast Dell 24 Monitor Color Power Button LED Input Source Shorout Key 2 Brightness Contrast Reset Personalization Rotation Input Source Preset Modes Shortcut Key 2 User can select one of the following Preset Modes Brightness Contrast Input Source Aspect Ratio Rota tion to set the short...

Страница 42: ...ing Active USB Allows you to enable or disable USB function during monitor standby mode NOTE USB ON OFF under standby mode is only available when USB upstream cable unplugged This option will be grey out when USB upstream cable plug in Shorout Key 1 Shorout Key 2 Power Button LED On During Standby USB Reset Personalization Display Others Personalize Menu Brightness Contrast Dell 24 Monitor Color I...

Страница 43: ...C CI Input Source DP Service Tag Firmware DP Capability DP 1 2 Model Dell P2421D DDC CI DDC CI display data channel command interface allows your monitor parameters brightness color balance and etc to be adjustable via the software on your computer You can disable this feature by selecting off Enable this feature by selecting on for best user experi ence and optimum performance of your monitor Men...

Страница 44: ...the back of the cover Reset Others Reset all settings under the others setting menu to the factory preset values Factory Reset Restore all preset values to the factory default settings These are also the settings for ENERGY STAR tests Menu Display Info Reset Others Factory Reset Display Others Personalize Brightness Contrast Dell 24 Monitor Color LCD Conditioning DDC CI On Input Source Service Tag...

Страница 45: ... 4 seconds to display the lock menu when Menu and Power buttons unlocked A lock menu appears and is shown on the bottom right corner of display screen Dell 24 Monitor Select Option To enter the unlock menu Hold the Exit key button 4 for 4 seconds to display the lock menu when Menu and Power buttons locked A unlock menu appears and is shown on the bottom right corner of display screen Select Option...

Страница 46: ...rmation NOTE To get into the Lock or Unlock menu Press and hold the Exit key button 4 for 4 seconds The icon will appear on center of display screen when in the following conditions which mean Menu and Power buttons is in lock state 1 Press the Up key button 1 Down key button 2 Menu key button 3 or Exit key button 4 when in Menu Buttons lock state 2 Press the Power key button 5 when in Power Butto...

Страница 47: ...from the computer See Monitor specifications for the Horizontal and Vertical frequency ranges addressable by this monitor Recommended mode is 2560 x 1440 Before the DDC CI function is disabled the following message is displayed The function of adjusting display setting using PC application will be disabled Do you wish to disable DDC CI function Yes No Dell 24 Monitor P2421D When the monitor enters...

Страница 48: ...log box as shown below appears The monitor will enter Power Save Mode after 4 minutes if left at this state Dell P2418HZ Dell 24 Monitor No HDMI Cable The display will go into Power Save Mode in 4 minutes www dell com P2421D P2421D or Dell P2418HZ Dell 24 Monitor No DP Cable The display will go into Power Save Mode in 4 minutes www dell com P2421D P2421D The OSD functions only in the normal operat...

Страница 49: ...y 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 No HDMI signal from your device Activate the computer and the monitor to gain access to the OSD See Troubleshooting for more information ...

Страница 50: ...ktop or portable computer Go to www dell com support enter your computer s Service Tag and download the latest driver for your graphics card If you are using a non Dell computer portable or desktop Go to the support site for your computer and download the latest graphic drivers Go to your graphics card website and download the latest graphic drivers If you have a Dell desktop or a Dell portable co...

Страница 51: ...t click on the desktop and click Personalization 3 Click Change Display Settings 4 Click Advanced Settings 5 Identify your graphics controller supplier from the description at the top of the window e g NVIDIA ATI Intel and so on 6 Refer to the graphic card provider website for updated driver for example www ATI com OR www AMD com 7 After installing the drivers for your graphics adapter attempt to ...

Страница 52: ...p with any other stand see the documentation that shipped with the stand Tilt Swivel With the stand attached to the monitor you can tilt and swivel the monitor for the most comfortable viewing angle 45 45 5 21 NOTE The stand is detached when the monitor is shipped from the factory Vertical Extension NOTE The stand can be extended vertically up to 130 mm 130mm ...

Страница 53: ... avoid hitting the bottom edge of the monitor 1 2 90 90 90 90 NOTE To use the Display Rotation function Landscape versus Portrait view with your Dell computer you require an updated graphics driver that is not included with this monitor To download the graphics driver go to www dell com support and see the Download section for Video Drivers for latest driver updates ...

Страница 54: ...ing the contents on your display To adjust the Rotation Display Settings 1 Right click on the desktop and click Properties 2 Select the Settings tab and click Advanced 3 If you have an ATI graphics card select the Rotation tab and set the preferred rotation 4 If you have an nVidia graphics card click the nVidia tab in the left hand column select NVRotate and then select the preferred rotation 5 If...

Страница 55: ...or 2 Disconnect all video cables from the monitor This way the computer doesn t have to be involved 3 Turn on the monitor If the monitor is working correctly it detects that there is no signal and one of the following message appears While in self test mode the power LED remains white Dell P2418HZ Dell 24 Monitor No HDMI Cable The display will go into Power Save Mode in 4 minutes www dell com P242...

Страница 56: ...you experience is an inherent problem with your monitor or with your computer and video card NOTE You can run the built in diagnostics only when the video cable is unplugged and the monitor is in self test mode 1 2 3 4 5 To run the built in diagnostics 1 Ensure that the screen is clean no dust particles on the surface of the screen 2 Unplug the video cable s from the back of the computer or monito...

Страница 57: ...The color of the screen changes to grey 7 Inspect the display for any abnormalties 8 Repeat step 6 and 7 to inspect the display in red green blue black white and text pattern screens The test is complete when the text pattern screen appears To exit press the Up key button 1 again If you do not detect any screen abnormalties upon using the built in diagnostic tool the monitor is functioning properl...

Страница 58: ...nd contrast controls using the OSD Perform monitor self test feature check Check for bent or broken pins in the video cable connector Run the built in diagnostics Ensure that the correct input source is selected via the Input Source menu Poor Focus Eliminate video extension cables Reset the monitor to Factory Settings Factory Reset Change the video resolution to the correct aspect ratio Shaky Jitt...

Страница 59: ...able connector Run the built in diagnostics Synchronization Problems Reset the monitor to Factory Settings Factory Reset Perform monitor self test feature check to determine if the scrambled screen appears in self test mode Check for bent or broken pins in the video cable connector Restart the computer in the safe mode Safety Related Issues Do not perform any troubleshooting steps Contact Dell imm...

Страница 60: ... to RGB or YPbPr in the Color settings OSD Run the built in diagnostics Image retention from a static image left on the monitor for a long period of time Use the Power Management feature to turn off the monitor at all times when not in use for more information see Power management modes Alternatively use a dynamically changing screensaver Video Ghosting or Overshooting Change the Response Time in ...

Страница 61: ... Check if the OSD menu is locked If yes press and hold the menu button for 4 seconds to unlock No Input Signal when user controls are pressed Check the signal source Ensure the computer is not in standby or sleep mode by moving the mouse or pressing any key on the keyboard Check if the video cable is plugged in properly Disconnect and reconnect the video cable if necessary Reset the computer or vi...

Страница 62: ...e safety instructions for best performance and long life for your monitor 1 The socket outlet shall be installed near the equipment and shall be easily accessible 2 The equipment can be installed on wall or ceiling mounting in horizontal position 3 The monitor is equipped with a three pronged grounded plug a plug with a third Grounding pin 4 Do not use this product near water 5 Read these instruct...

Страница 63: ...ries by country and product and some services may not be available in your area To get online Monitor support content 1 Visit www dell com support monitors To contact Dell for sales technical support or customer service issues 1 Visit www dell com support 2 Verify your country or region in the Choose A Country Region drop down menu at the bottom of the page 3 Click Contact Us on the left side of t...

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