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Dell P2423DE User Manual
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Dell P2423DE User Manual

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Dell USB-C Monitor
P2423DE/P2723DE
User's Guide
Monitor Model: P2423DE/P2723DE
Regulatory Model: P2423DEc/P2723DEc

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Summary of Contents for Dell P2423DE

  • Page 1 Dell USB-C Monitor P2423DE/P2723DE User’s Guide Monitor Model: P2423DE/P2723DE Regulatory Model: P2423DEc/P2723DEc...
  • Page 2 WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2022 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. USB Type-C and USB-C are registered trademarks of USB ®...

  • Page 3: Table Of Contents

    Contents Safety instructions......6 About your monitor ......7 Package contents .
  • Page 4 Connecting the RJ45 cable (optional) ....43 Dell Power Button Sync (DPBS)....44 Connecting the monitor for DPBS for the first time.
  • Page 5 ..... 94 Contacting Dell..... . . 94...

  • Page 6: Safety Instructions

    Safety instructions Use the following safety guidelines to protect your monitor from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that you have read the safety information that shipped with your monitor. NOTE: Before using the monitor, read the safety information that is shipped with your monitor and printed on the product.

  • Page 7: About Your Monitor

    About your monitor Package contents The following table provides the list of components that are shipped with your monitor. If any component is missing, contact Dell. For more information, see Contacting Dell. NOTE: Some items may be optional and may not ship with your monitor.
  • Page 8 DisplayPort to DisplayPort cable (1.8 meters) Super speed USB 10 Gbps (USB 3.2 Gen2) Type-C to Type-C upstream cable (C-C cable) (1 meter) Super speed USB 5 Gbps (USB 3.2 Gen1) Type-C to Type-A upstream cable (C-A cable) (1.8 meters) Cable tie •...

  • Page 9: Product Features

    (TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features include: • P2423DE: 60.45 cm (23.8 in.) viewable area display (measured diagonally). • P2723DE: 68.47 cm (27 in.) viewable area display (measured diagonally). • 2560 x 1440 resolution, with full-screen support for lower resolutions.

  • Page 10: Identifying Parts And Controls

    Identifying parts and controls Front view Label Description Power LED indicator Solid white light indicates that the monitor is turned on and functioning normally. Blinking white light indicates that the monitor is in Standby Mode. │ About your monitor...

  • Page 11: Back View

    Releases the stand from the monitor. Barcode, serial number, and Contains monitor details and support Service Tag label information. Refer to this label if you need to contact Dell for technical support. Power On/Off button To turn the monitor on or off. Joystick Use to control the OSD menu.

  • Page 12: Bottom View

    Bottom view Bottom view without monitor stand Label Description Security lock slot Secure your monitor using a security lock (based on Kensington (purchased separately) to prevent unauthorized Security Slot) movement of your monitor. Power connector Connect the power cable (shipped with your monitor).
  • Page 13 USB-C upstream port Connect the USB-C (C-C) or (C-A) cable that came with your monitor to the computer. This port supports USB Power Delivery, Data, and DisplayPort video signal. The SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Type-C port supports Alternate Mode DP1.4 with a maximum resolution of 2560 x 1440 at 60 Hz, PD 20 V/4.5 A, 15 V/3 A, 9 V/3 A, 5 V/3 A.

  • Page 14: Monitor Specifications

    Monitor specifications Model P2423DE P2723DE Screen type Active matrix - TFT LCD Panel type In-Plane Switching Technology Aspect ratio 16:9 Viewable image Diagonal 604.50 mm (23.80 in.) 684.70 mm (26.96 in.) Horizontal, Active Area 526.85 mm (20.74 in.) 596.74 mm (23.49 in.) Vertical, Active Area 296.35 mm (11.67 in.)
  • Page 15 -5° to 21° Swivel -45° to 45° Pivot -90° to 90° Cable management Dell Display Manager Easy Arrange and other key features compatibility Security Security lock slot (cable lock optional purchase) *DisplayPort and USB-C (Alternate mode with DisplayPort 1.4): HBR3 is supported.

  • Page 16: Resolution Specifications

    Resolution specifications Model P2423DE/P2723DE Horizontal scan range 29 kHz to 113 kHz Vertical scan range 49 Hz to 75 Hz (automatic) Maximum preset 2560 x 1440 @ 60 Hz resolution Supported video modes Model P2423DE/P2723DE Video display capabilities 480p, 576p, 720p, 1080i(HDMI), 1080p, 1440p (HDMI &...

  • Page 17: Preset Display Modes

    Preset display modes Sync Horizontal Vertical Pixel Clock Polarity Display Mode Frequency Frequency (MHz) (Horizontal / (kHz) (Hz) Vertical) IBM, 720 x 400 31.50 70.10 28.30 VESA, 640 x 480 31.50 59.90 25.20 VESA, 640 x 480 37.50 75.00 31.50 VESA, 800 x 600 37.90 60.30...
  • Page 18 Electrical specifications Model P2423DE P2723DE Video input signals • HDMI 1.4/DisplayPort 1.4*, 600 mV for each differential line, 100 ohm input impedance per differential pair • USB-C (with DP alternate mode) signal input support AC input voltage/ 100 VAC to 240 VAC / 50...
  • Page 19 NOTE: This monitor is ENERGY STAR certified. This product qualifies for ENERGY STAR in the factory default settings which can be restored by “Factory Reset” function in the OSD menu. Changing the factory default settings or enabling other features may increase power consumption that could exceed the ENERGY STAR specified limit.

  • Page 20: Physical Characteristics

    • Universal Series Bus: Type-C, 24 pins NOTE: Dell monitors are designed to work optimally with the video cables that are shipped with your monitor. As Dell does not have control over the different cable suppliers in the market, the type of...
  • Page 21 Weight without stand 3.92 kg (8.64 lb) 5.07 kg (11.18 lb) assembly (For wall mount or VESA mount considerations - no cables) Weight of stand assembly 1.63 kg (3.59 lb) 1.84 kg (4.06 lb) Front-frame gloss Black frame 2-4 gloss units │...

  • Page 22: Environmental Characteristics

    Environmental characteristics Model P2423DE P2723DE Compliant Standards • ENERGY STAR certified monitor. • EPEAT registered where applicable. EPEAT registration varies by country. See www.epeat.net for registration status by country. • RoHS-compliant. • TCO Certified & TCO Certified Edge. • BFR/PVC free monitor (excluding external cables).

  • Page 23: Pin Assignments

    Pin assignments DisplayPort connector (in) 20-pin side of the number connected signal cable ML3 (n) ML3 (p) ML2 (n) ML2 (p) ML1 (n) ML1 (p) ML0 (n) ML0 (p) AUX (p) AUX (n) Hot Plug Detect Re-PWR +3.3 V DP_PWR │...

  • Page 24: Displayport Connector (Out)

    DisplayPort connector (out) 20-pin side of the number connected signal cable ML0 (p) ML0 (n) ML1 (p) ML1 (n) ML2 (p) ML2 (n) ML3 (p) ML3 (n) CONFIG1 CONFIG2 AUX CH (p) AUX CH (n) Hot Plug Detect Return DP_PWR │...

  • Page 25: Hdmi Connector

    HDMI connector 19-pin side of the number 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 26: Universal Serial Bus (Usb) Interface

    Universal Serial Bus (USB) interface This section gives you information about the USB ports that are available on the monitor. SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Maximum power supported Transfer speed Data rate (each port) SuperSpeed 5 Gbps 4.5 W High speed 480 Mbps 4.5 W...
  • Page 27 USB downstream connector 9-pin side of the number connector SSRX- SSRX+ SSTX- SSTX+ │ About your monitor...
  • Page 28 USB-C connector Signal name Signal name number number TX1+ TX2+ TX1- TX2- VBUS VBUS SBU1 SBU1 VBUS VBUS RX2- RX1- RX2+ RX1+ USB ports • 1 USB-C upstream - bottom • 4 SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Type-A downstream - bottom NOTE: SuperSpeed USB 5 Gbps (USB 3.2 Gen1) functionality requires a SuperSpeed USB 5 Gbps (USB 3.2 Gen1)-capable computer.

  • Page 29: Rj45 Port (Connector Side)

    RJ45 port (connector side) Signal number TD1+ TD1- TD2+ TD2- TD3+ TD3- TD4+ TD4- GREEN GREEN GREEN_AMBER GREEN_AMBER │ About your monitor...
  • Page 30 Mac Address (Printed on model label) Pass-thru (MAPT), Wake-on-LAN (WOL) from standby mode (S3 only) and UEFI* PXE Boot function [UEFI PXE Boot is not supported on Dell Desktop PC’s (except for OptiPlex 7090/3090 Ultra Desktop)], these 3 features depend on BIOS settings and version of the OS.
  • Page 31 Label Color Description Link/Activity indicator: • Blinking - Activity on the port. Left LED Green • Green On - Link is being established. • Off - Link is not established. Speed indicator: • Amber On - 1000 Mbps Right LED Amber or Green •...

  • Page 32: Plug And Play Capability

    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 or usability. For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at www.dell.com/pixelguidelines.
  • Page 33 • Ensure 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 lighting around you (such as overhead lights, desk lamps, and the curtains or blinds on nearby windows) to minimize reflections and glare on the monitor screen.

  • Page 34: Handling And Moving Your Display

    Handling and moving your display To ensure that the monitor is handled safely when lifting or moving it, observe the following guidelines: • Before moving or lifting the monitor, turn off your computer and the monitor. • Disconnect all cables from the monitor. •...

  • Page 35: Maintenance Guidelines

    For best practices, follow the instructions in the list below when unpacking, cleaning, or handling your monitor: • To clean the Dell monitor screen, lightly dampen a soft, clean cloth with water. If possible, use a special screen-cleaning tissue or solution suitable for the Dell monitor screen.
  • Page 36 Customer Induced Damage (CID). CID is not covered under the standard Dell warranty. • If you notice white powder when you unpack your monitor, wipe it off with a cloth.

  • Page 37: Setting Up The Monitor

    Setting up the monitor Attaching the stand NOTE: The stand is not installed at the factory when shipped. NOTE: The following instructions are applicable only for the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the setup instructions that were included with the stand.
  • Page 38 6. Lift the cover, as shown, to access the VESA area for stand assembly. NOTE: Before attaching the stand assembly to the display, ensure that the front plate flap is opened to allow space for assembly. 7. Attach the stand assembly to the display. a.
  • Page 39 8. Hold the stand riser and lift the monitor carefully, then place it on a flat surface. NOTE: Lift the monitor carefully to prevent it from slipping or falling. 9. Remove the cover from the monitor. │ Setting up the monitor...

  • Page 40: Connecting Your Monitor

    Safety instructions. NOTE: Dell monitors are designed to work optimally with Dell supplied inbox cables. Dell does not guarantee the video quality and performance if non-Dell cables are used. NOTE: Route the cables through the cable-management slot before connecting them.

  • Page 41: Connecting The Displayport (Displayport To Displayport) Cable

    Connecting the DisplayPort (DisplayPort to DisplayPort) cable Connecting the USB-C (C-A) cable USB-A Connecting the USB-C (C-C) cable NOTE: Use the USB-C (C-C) cable shipped with monitor only. • This port supports DisplayPort Alternate Mode (DP1.4 standard only). • The USB-C power delivery compliant port (PD Version 3.0) delivers up to 90 W of power.

  • Page 42: Connecting The Hdmi Cable (Optional)

    Connecting the HDMI cable (optional) Connecting the monitor for DP Multi-Stream Transport (MST) function NOTE: This monitor supports the DP MST feature. To make use of this feature, your PC Graphics Card must be certified to DP1.4 with MST option. NOTE: Remove the rubber plug when using DP out connector.

  • Page 43: Connecting The Rj45 Cable (Optional)

    Connecting the RJ45 cable (optional) NOTE: The RJ45 cable is not an in-box standard accessory. │ Setting up the monitor...

  • Page 44: Dell Power Button Sync (Dpbs)

    Dell Power Button Sync (DPBS) Your monitor is designed with Dell Power Button Sync (DPBS) feature to allow you to control PC system power state from the monitor power button. This feature is only supported with Dell platform which has built-in DPBS function, and is only supported over USB-C interface.
  • Page 45 2. Select Hardware and Sound, followed by Power Options. 3. Go to System Settings. │ Setting up the monitor...
  • Page 46 4. In the drop-down menu of When I press the power button, there are a few options for selection, namely Do nothing/Sleep/Hibernate/Shut down. You can select Sleep/Hibernate/Shut down. NOTE: Do not select “Do nothing”, otherwise the monitor power button will not be able to sync with PC system power state. │...

  • Page 47: Connecting The Monitor For Dpbs For The First Time

    2. Press the monitor power button to turn ON the monitor. 3. Connect the USB-C cable from the PC to the monitor. 4. Both the monitor and PC will turn ON normally except Dell Optiplex 7090/3090 Ultra platform. 5. When you connect the Dell Optiplex 7090/3090 Ultra platform, you may see both the monitor and PC will turn ON momentarily.

  • Page 48: Using Dpbs Function

    Waking on the USB-C cable When you connect the USB-C cable, the Monitor/PC state is as follows: * Not all Dell PC systems support to wake up the platform via the monitor. * After connect the USB-C cable, tap on...
  • Page 49 • When the monitor and the PC power state are both ON, press and hold the monitor power button for 4 seconds, the screen prompt will ask if you would like to shut down the PC. • When the monitor and the PC power state are both ON, press and hold the monitor power button for 10 seconds, the PC will shut down.

  • Page 50: Connecting The Monitor For Usb-C Multi-Stream Transport (Mst) Function

    Connecting the monitor for USB-C Multi-Stream Transport (MST) function A PC is connected to two monitors in an initial OFF power state, and the PC system power state is in sync with Monitor 1 power button. When you press Monitor 1 or PC power button, both Monitor 1 and PC turns ON. Meanwhile, Monitor 2 will remain OFF.

  • Page 51: Connecting The Monitor For Usb-C

    Connecting the monitor for USB-C The Dell PC* Ultra platform has two USB-C ports, so both Monitor 1 and Monitor 2 power state can sync with the PC. When the PC and two monitors are in an initial ON power state, pressing the power button on Monitor 1 or Monitor 2 will turn OFF the PC, Monitor 1, and Monitor 2.
  • Page 52 Ensure to set USB-C Charging 90W to On in Off Mode. When the PC and two monitors are in an initial OFF power state, pressing the power button on Monitor 1 or Monitor 2 will turn ON the PC, Monitor 1, and Monitor 2. │...

  • Page 53: Organizing Cables

    Organizing cables After attaching all necessary cables to your monitor and computer, (See Connecting your monitor for cable attachment,) organize all cables as shown above. Securing your monitor using Kensington lock (optional) The security lock slot is located at the bottom of the monitor. (see Security lock slot).

  • Page 54: Removing The Monitor Stand

    Removing the monitor stand NOTE: To prevent scratches on the LCD screen when removing the stand, ensure that the monitor is placed on a soft surface and handle it carefully. NOTE: The following steps are specifically for removing the stand that is shipped with your monitor.

  • Page 55: Vesa Wall Mounting (Optional)

    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 capacity of 15.68 kg (P2423DE) / 20.28 kg (P2723DE). │...

  • Page 56: Operating The Monitor

    Operating the monitor Power on the monitor Press the Power button to turn On the monitor. Using the joystick control Use the joystick control on the rear of the monitor to make On-Screen Display (OSD) adjustments. 1. Press the joystick to launch the Menu Launcher. 2.

  • Page 57: Using The On-Screen Display (Osd) Menu

    Using the On-Screen Display (OSD) menu Accessing the Menu Launcher When you toggle or press the joystick, the Menu Launcher appears to let you access the OSD main menu and shortcut functions. To select a function, move the joystick. The following table describes the Menu Launcher functions: Joystick Description To choose an input source from the list of video...

  • Page 58: Using The Navigation Keys

    Using the navigation keys When the OSD main menu is active, move the joystick to configure the settings, following the navigation keys displayed below the OSD. Joystick Description Use the Up direction to adjust (increase ranges) items in the OSD menu. Use the Down direction to adjust (decrease ranges) items in the OSD menu.

  • Page 59: Accessing The Menu System

    Accessing the menu system NOTE: If you change the settings and then either proceed to another menu or exit the OSD menu, the monitor automatically saves those changes. The changes are also saved if you change the settings and then wait for the OSD menu to disappear. 1.
  • Page 60 Icon Menu and Description Submenus Brightness/ Use this menu to activate Brightness/Contrast Contrast adjustment. 2X Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others Exit Brightness Brightness adjusts the luminance of the backlight. Press the direction to increase the brightness and press the direction to decrease the brightness (min.
  • Page 61 Input Source Selects between the different video signals that may be connected to your monitor. 2X Monitor Brightness/Contrast USB-C Input Source Color HDMI Auto Select Display Prompt for Multiple Inputs Menu Auto Select for USB-C USB-C Personalize Rename Inputs Others Reset Input Source Exit USB-C...
  • Page 62 Rename Inputs Allows you to specify a preset input name for the selected input source. The preset options are PC, PC 1, PC 2, Laptop, Laptop 1, and Laptop 2. The default setting is Off. NOTE: When you perform a rename for the USB-C input, the wattage value remains after the specified option, e.g., PC 1 90W.
  • Page 63 Preset Modes Allows you to choose from the list of preset color modes. Press the joystick to confirm the selection. 2X Monitor Brightness/Contrast Preset Modes Standard Input Source Input Color Format Movie Color Game Saturation Warm Display Reset Color Cool Menu Personalize Custom Cool...
  • Page 64 Input Color Allows you to set the video input mode to: Format • RGB: Select this option if your monitor is connected to a computer or a media player that supports RGB output. • YCbCr: Select this option if your media player supports only YCbCr output.
  • Page 65 Saturation This feature can adjust the color saturation of the video image. Use to adjust the saturation from 0 to 100. Press to increase the monochrome appearance of the video image. Press to increase the colorful appearance of the video image. NOTE: Saturation adjustment is available only when you select Movie or Game preset mode.
  • Page 66 Display Use the display to adjust image. 2X Monitor Brightness/Contrast Aspect Ratio 16:9 Input Source Sharpness Response Time Color Normal Display Menu USB-C Prioritization High Data Speed Personalize Reset Display Others Exit Aspect Ratio Adjusts the image ratio to 16:9, 4:3 or 5:4. Sharpness This feature can make the image look sharper or softer.
  • Page 67 Menu Select this option to adjust the settings of the OSD, such as, the languages of the OSD, the amount of time the menu remains on screen and so on. 2X Monitor Brightness/Contrast Language English Input Source Rotation Select Color Transparency Display Timer...
  • Page 68 Personalize 2X Monitor Brightness/Contrast Shortcut Key 1 Input Source Input Source Shortcut Key 2 Preset Modes Color Shortcut Key 3 Brightness/Contrast Power Button LED On in On Mode Display USB-C Charging O in O Mode Menu Other USB Charging O in Standby Mode Personalize Fast Wakeup Others...
  • Page 69 Others Select this option to adjust the OSD settings, such as the DDC/CI, LCD conditioning, and so on. 2X Monitor Brightness/Contrast Display Info Select Input Source DDC/CI LCD Conditioning Color Firmware XXXXXX Display Service Tag XXXXXXX Menu Self-Diagnostic Select Personalize Reset Others Others Factory Reset...
  • Page 70 Service Tag Displays the service tag of your monitor. This string is required when you look for phone support, check your warranty status, update drivers on Dell's website, etc. Self-Diagnostic Allows you to check if your monitor is functioning properly.

  • Page 71: Menu And Power Button Lock

    Menu and Power button lock Prevents users to access or change OSD menu settings on the display. By default, the Menu and Power button lock setting is disabled. To access the lock menu, press and hold the Up or Down or Left or Right direction for four seconds.
  • Page 72 Select option: There are three lock options. Menu Description Menu Buttons When Menu Buttons is selected, the OSD menu settings cannot be changed. All buttons are locked except Power button. Power Button When Power Button is selected, the display cannot be turned off using the Power button.

  • Page 73: Osd Warning Messages

    OSD warning messages When the monitor does not support a particular resolution mode, you will see the following message: 2560x1440, This means that the monitor cannot synchronize with the signal that it is receiving from the computer. See monitor specifications for the Horizontal and Vertical frequency ranges addressable by this monitor.
  • Page 74 When you adjust the Brightness level above the default level for the first time, the following message appears: NOTE: If you select Yes, the message will not appear the next time you change the Brightness setting. When you change the default setting of power saving features for the first time, such as USB-C Charging 90W, Other USB Charging, or Fast Wakeup, the following message appears:...
  • Page 75 If either USB-C, DisplayPort, or HDMI input is selected and the corresponding cable is not connected, the following message will appear: No USB-C Cable The display will go into Standby mode in 4 minutes. www.dell.com/P2X23DE │ Operating the monitor...
  • Page 76 No DP Cable The display will go into Standby mode in 4 minutes. www.dell.com/P2X23DE No HDMI Cable The display will go into Standby mode in 4 minutes. www.dell.com/P2X23DE NOTE: The message may be slightly different according to the connected input signal.
  • Page 77 You will see the following message before the Lock function is activated: NOTE: The message may be slightly different according to the selected settings. When Factory Reset is selected, the following message appears: │ Operating the monitor...
  • Page 78 When Yes is selected, the following message appears. When Yes is selected, the following message appears. 2X Monitor Select ‘Yes’ to enable the following function(s): Always on USB-C Charging Other USB Charging When ‘Yes’ is selected, power consumption will increase. When ‘No’ is selected, it will comply with ENERGY STAR requirements.

  • Page 79: Setting The Maximum Resolution

    1. For Windows 8.1, select the Desktop tile to switch toclassic desktop. 2. Right-click on the desktop and click Screen Resolution. 3. If you have more than one monitor connected, ensure that you select P2423DE/ P2723DE. 4. Click the Screen Resolution dropdown list and select 2560 x 1440.

  • Page 80: Using The Tilt, Swivel, And Vertical Extension

    Using the tilt, swivel, and vertical extension NOTE: The following instructions are applicable only for attaching the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the set up instructions that were included with the stand.

  • Page 81: Rotating The Monitor

    Rotating the monitor Before you rotate the monitor, your monitor should be fully vertically extended (Vertical Extension) and fully tilted up to avoid hitting the bottom edge of the monitor. Rotate clockwise │ Operating the monitor...

  • Page 82: Rotate Counterclockwise

    Rotate counterclockwise 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.

  • Page 83: Adjusting The Rotation Display Settings Of Your System

    After you have rotated your monitor, you need to complete the procedure below to adjust the Rotation Display Settings of your system. NOTE: If you are using the monitor with a non-Dell computer, you need to go to the graphics driver website or your computer manufacturer website for information on rotating the 'contents' on your display.

  • Page 84: Troubleshooting

    If the monitor cannot sense a video signal and is working correctly, the following message will appear: No USB-C Cable The display will go into Standby mode in 4 minutes. www.dell.com/P2X23DE No DP Cable The display will go into Standby mode in 4 minutes. www.dell.com/P2X23DE │...

  • Page 85: Built-In Diagnostics

    No HDMI Cable The display will go into Standby mode in 4 minutes. www.dell.com/P2X23DE NOTE: The message may be slightly different according to the connected input signal. NOTE: While in self-test mode, the power LED remains white. 4. This box also appears during normal system operation, if the video cable becomes disconnected or damaged.
  • Page 86 3. Move the Joystick to select Others > Self-Diagnostic to initiate the self- diagnostic process. 2X Monitor Brightness/Contrast Display Info Input Source DDC/CI Color LCD Conditioning Firmware Display Service Tag Menu Select Self-Diagnostic Personalize Reset Others Others Factory Reset Exit 4.

  • Page 87: Common Problems

    Common problems The following table contains general information about common monitor problems you might encounter and the possible solutions: Common What you Possible Solutions Symptoms experience No Video/Power No picture Ensure that the video cable connecting LED off the monitor and the computer is properly connected and secure.
  • Page 88 • Cycle power On-Off. spots • 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 •...
  • Page 89 • Restart the computer in the safe mode. Safety Related Visible signs of • Do not perform any troubleshooting Issues smoke or sparks steps. • Contact Dell immediately. Intermittent Monitor • Ensure that the video cable connecting Problems malfunctions on & the monitor to the computer is connected properly and is secure.
  • Page 90 Image retention Faint shadow from • Set the screen to turn off after a few from a static the static image minutes of screen idle time. These can image left on displayed appears be adjusted in Windows Power Options the monitor for on the screen or Mac Energy Saver setting.
  • Page 91 The picture does The picture cannot fill • Due to different video formats not fill the entire the height or width of (aspect ratio) of DVDs, the screen the screen monitor may display in full screen. • Run the built-in diagnostics. No video at HDMI/ When connected to •...

  • Page 92: Universal Serial Bus (Usb) Specific Problems

    Universal Serial Bus (USB) specific problems Common What you Possible Solutions symptoms experience USB interface is USB peripherals are • Check that your monitor is turned not working not working • Reconnect the upstream cable to your computer. • Reconnect the USB peripherals (downstream connector).
  • Page 93 Wireless USB Wireless USB • Increase the distance between peripherals stop peripherals the USB 3.2 peripherals and the working when a responding slowly or wireless USB receiver. USB 3.2 device is only working as the • Position your wireless USB receiver plugged in distance between as close as possible to the wireless...

  • Page 94: Regulatory Information

    P2423DE: https://eprel.ec.europa.eu/qr/1057583 P2723DE: https://eprel.ec.europa.eu/qr/1057602 Contacting Dell To contact Dell for sales, technical support, or customer service issues, see www. dell.com/contactdell. NOTE: Availability varies by country and product, and some services may not be available in your country. 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.

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