Dell C2423H User Manual
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Dell C2423H User Manual

Video conferencing monitor
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Dell C2423H
Dell C2723H
Video Conferencing Monitor
User's Guide
Model: C2423H/C2723H
Regulatory model: C2423Hb/C2723Hb

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Summary of Contents for Dell C2423H

  • Page 1 Dell C2423H Dell C2723H Video Conferencing Monitor User’s Guide Model: C2423H/C2723H Regulatory model: C2423Hb/C2723Hb...
  • 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. Microsoft and Windows are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.

  • Page 3: Table Of Contents

    Contents Safety Instructions ......6 About Your Monitor......7 Product Features .
  • Page 4 Maintenance Guidelines ......31 Cleaning Your Monitor ........31 Setting Up the Monitor .
  • Page 5 Information........95 Contact Dell ........95 EU Product Database for Energy Label and Product Information Sheet .

  • Page 6: Safety Instructions

    Safety Instructions WARNING: Use of controls, adjustments, or procedures other than those specified in this documentation may result in exposure to shock, electrical hazards, and/or mechanical hazards. • Place the monitor on a solid surface and handle it carefully. The screen is fragile and can be damaged if dropped or hit sharply.

  • Page 7: About Your Monitor

    About Your Monitor Package Contents Your monitor ships with the components shown in the table below. If any component is missing, contact Dell technical support. For more information, see Contact Dell. NOTE: Some items may be optional and may not ship with your monitor.
  • Page 8 Power Cable (varies by country) DisplayPort to DisplayPort cable Cable length: 1.80 M HDMI Cable Cable length: 1.80 M SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Type-A to Type-B Upstream Cable (Enables the USB Ports on the Monitor) Cable length: 1.80 M •...

  • Page 9: Product Features

    (TFT), Liquid Crystal Display (LCD) and LED backlight. The monitor features include: • C2423H: 60.47 cm (23.80 in.) viewable area (measured diagonally). 1920 x 1080 (16:9) resolution, plus full-screen support for lower resolutions. • C2723H: 68.58 cm (27.00 in.) viewable area (measured diagonally). 1920 x 1080 (16:9) resolution, plus full-screen support for lower resolutions.
  • Page 10 • The monitor adopts Flicker-Free technology, which clears the eye visible flicker, brings comfort viewing experience and preventing users suffer from eye strain and fatigue. • Optimize eye comfort with a flicker-free screen and low blue light feature. WARNING: The possible long-term effects of blue light emission from the monitor may cause damage to the eyes, including eye fatigue, digital eye strain, and so on.

  • Page 11: Identifying Parts And Controls

    Identifying Parts and Controls Front View Front View with Monitor Stand Description Microphones Monitor microphones (Mic). IR LED Indicator of infrared (IR). Webcam lens Transmits your image in a video conference. Webcam LED Indicator of Webcam. It will light up in white when indicator webcam is in use.

  • Page 12: Back View

    Releases 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. │...

  • Page 13: Bottom View

    Joystick Use to control the OSD menu. (For more Information, see Operating the Monitor) Cable-management slot Use to organize cables by inserting them through the slot. Bottom View Bottom View without Monitor Stand Description Power connector Connect the power cable (shipped with your monitor).
  • Page 14 DisplayPort (out) DisplayPort output for MST (multi-stream transport) capable monitor. To enable MST, Connecting the Monitor for DP Multi- Stream Transport (MST) Function. NOTE: Remove the rubber plug when using DisplayPort out connector. SuperSpeed USB 5 Connect the USB cable that comes with your Gbps (USB 3.2 Gen1) monitor to the computer.

  • Page 15: Monitor Specifications

    Monitor Specifications Model C2423H C2723H Screen type Active matrix - TFT LCD Panel technology In-Plane Switching Technology Aspect ratio 16:9 Viewable Image Diagonal 604.70 mm (23.80 in.) 685.80 mm (27.00 in.) Width (active area) 527.04 mm (20.75 in.) 597.89 mm (23.54 in.) Height (active area) 296.46 mm (11.67 in.)

  • Page 16: Resolution Specifications

    150 mm Tilt -5° to 21° Swivel -45° to 45° Pivot -90° to 90° Dell Display Manager Easy Arrange and other key features (DDM) compatibility Security Security lock slot (cable lock sold separately) *DisplayPort 1.2/MST/DP audio is supported. Resolution Specifications...

  • Page 17: Supported Video Modes

    Supported Video Modes Model C2423H/C2723H Video display capabilities (HDMI 480p, 576p, 720p, 1080i*, 1080p & DisplayPort) *Supported by HDMI input only. Preset Display Modes Display Mode Horizontal Vertical Pixel Sync Frequency Frequency Clock Polarity (kHz) (Hz) (MHz) (Horizontal /Vertical) VESA, 720 x 400 31.47...

  • Page 18: Multi-Stream Transport (Mst) Modes

    1920 x 1080 at 60 Hz • 3 Unified Communications (UC) Platform Compatibility List The table below highlights the call functions that work on the Dell Video Conferencing Monitor – C2423H and C2723H when using the following UC platforms Buttons...

  • Page 19: Electrical Specifications

    Electrical Specifications Model C2423H C2723H Video input signals • HDMI 1.4*/DisplayPort 1.2**, 600 mV for each differential line, 100 ohm input impedance per differential pair AC input voltage/ 100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 1.5 A...

  • Page 20: Webcam And Microphone Specifications

    OSD menu. Changing the factory default settings or enabling other features may increase power consumption that could exceed the ENERGY STAR specified limit. Webcam and Microphone Specifications Model C2423H/C2723H Lens Field of view 88.9° for 2560 x 1920 Focus mode Fixed Focus Focus area 35 cm ~ 1.5 m...

  • Page 21: Physical Characteristics

    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 material, connector and process used to manufacture these cables, Dell does not guarantee video performance on cables that are not shipped with your Dell monitor.

  • Page 22: Monitor Environmental Characteristics

    1.76 kg (3.88 lb) 1.76 kg (3.88 lb) assembly Front frame gloss Monitor Environmental Characteristics Model C2423H C2723H Compliant Standards • ENERGY STAR certified monitor • EPEAT registered where applicable. EPEAT registration varies by country. See www.epeat.net for registration status by country.

  • Page 23: Pin Assignments

    Thermal Dissipation • 279.78 BTU/hour • 290.03 BTU/hour (maximum) (maximum) • 40.94 BTU/hour • 45.04 BTU/hour (typical) (typical) Pin Assignments DP Port (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)
  • Page 24 DP Port (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 Port 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. NOTE: This monitor is SuperSpeed USB 5 Gbps (USB 3.2 Gen1) and High-speed USB 2.0 compatible. USB 3.2 Gen1 Transfer Speed Data Rate Power Supported SuperSpeed...

  • Page 27: Usb Downstream Connector

    SSTX+ SSRX- SSRX+ USB Downstream Connector Pin Number 9-pin Side of the Connector SSRX- SSRX+ SSTX- SSTX+ USB Ports • 1 USB Type-B (USB 3.2 Gen1) upstream port - bottom • 4 SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Type-A downstream ports-  2 at bottom, 2 at rear...

  • Page 28: 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 http://www.dell.com/pixelguidelines.
  • Page 29 • 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 30: Handling And Moving Your Display

    Handling and Moving Your Display To ensure the monitor is handled safely when lifting or moving it, follow the guidelines mentioned below: • Before moving or lifting the monitor, turn off your computer and the monitor. • Disconnect all cables from the monitor. •...

  • Page 31: 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 32 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 33: Setting Up The Monitor

    1. Follow the instructions on the flaps of packaging box to remove the stand from the top cushion that secures it. 2. Remove the stand base and stand riser from the packaging cushion. C2423H C2723H │ Setting Up the Monitor...
  • Page 34 4. Open the screw handle at the bottom of the stand base and turn it clockwise to secure the stand assembly. 5. Close the screw handle. 6. Open the protective cover to access the VESA slot on the display. C2423H │ Setting Up the Monitor...
  • Page 35 7. Attach the stand assembly to the display. a. Align and slide the tabs on the stand riser into the VESA slot. b. Press the stand down till it snaps into place. C2423H │ Setting Up the Monitor...
  • Page 36 8. Hold the stand riser with both hands firmly and lift the monitor. Then place the monitor in an upright position on a flat surface. NOTE: Hold the stand riser firmly when lifting the monitor to avoid any accidental damage. C2423H │ Setting Up the Monitor...
  • Page 37 C2723H 9. Lift the protective cover from the monitor. │ Setting Up the Monitor...

  • Page 38: Operating The Monitor Webcam

    Operating the Monitor Webcam When you want to use the monitor built-in webcam, press down on the webcam module and then release. The webcam module will pop up. Organizing Your Cables After attaching all necessary cables to your monitor and computer (See Connecting Your Monitor for cable attachment), organize all cables as shown above.

  • Page 39: Securing Your Monitor Using Kensington Lock

    WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions. 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. NOTE: Route the cables through the cable-management slot before connecting them.

  • Page 40: Connecting The Hdmi Cable

    Connecting the HDMI Cable NOTE: The default out of factory setting is HDMI 1.4. Connecting the DisplayPort (DisplayPort to DisplayPort) Cable NOTE: The default out of factory setting is DP1.2. If the monitor fails to show any content after the DisplayPort cable is connected, follow the procedures below to change the settings to DP1.1: •...

  • Page 41: Connecting The Monitor For Dp Multi-Stream Transport

    Repeat the above steps to change the DisplayPort format settings if necessary. 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 at least DP1.2 with MST option.

  • Page 42: 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 43: Vertical Extension

    Vertical Extension NOTE: The stand extends vertically up to 150 mm. The figure below illustrates how to extend the stand vertically. 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.

  • Page 44: Rotate Clockwise

    Rotate Clockwise 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 45: Adjusting The Rotation Display Settings Of Your

    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 the graphics driver website or your computer manufacturer website for information on rotating the 'contents' on your display.

  • Page 46: 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, clean surface. 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 47 5. Mount the monitor on the wall. For more information, 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 or load bearing capacity of 15.32 kg (C2423H)/ 20.16 kg (C2723H). │...

  • Page 48: Operating The Monitor

    Operating the Monitor Power On the Monitor Press the Power Button to turn On the monitor. Using the Joystick Control To modify the OSD adjustments using the joystick control on the rear end of the monitor, do the following: 1. Press the joystick button to launch the OSD Menu Launcher. 2.

  • Page 49: Joystick Functions

    Joystick Functions Function Description Press joystick to open the OSD Menu Launcher. • For right and left navigation. • Move right to enter the submenu. • Move left to exit from the submenu. • For up and down navigation. • Toggle between the menu items. •...

  • Page 50: Menu Launcher Details

    The following table describes the Menu Launcher functions: Menu Launcher Details Menu Launcher Icon Description Opens the On-Screen Display (OSD). See Accessing the Menu System. Main Menu Adjusts the aspect ratio of your screen. Aspect Ratio (Shortcut Key 1) • Sets the Input Source. •...

  • Page 51: 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. After you change the settings, press the joystick to save the changes before proceeding to another menu or exit the OSD menu. NOTE: To exit the current menu item and return to the previous menu, move the joystick to the left until you exit.
  • Page 52 Contrast Adjusts the Brightness first, and then adjust the Contrast only if further adjustment is necessary. Toggle the joystick up to increase the contrast and toggle the joystick down to decrease the contrast (Range: 0 - 100). The Contrast function adjusts the degree of difference between darkness and lightness on the monitor screen.
  • Page 53 Reset Input Press the joystick to reset all settings under the Source Input Source menu to the factory preset values. Color Adjusts the color setting mode. Preset Modes Allows you to choose from a list of preset color modes. • Standard: Default Color setting. This monitor uses a low blue light panel, and is certified by TUV to reduce blue light output and create a more relaxing and less stimulating image while reading...
  • Page 54 • Movie: Ideal for movies. • Game: Ideal for most gaming applications. • Warm: Presents colors at lower color temperatures. The screen appears warmer with a red/yellow tint. • Cool: Presents colors at higher color temperatures. The screen appears cooler with a blue tint.
  • Page 55 Shifts the color of the video image to green or purple. This is used to adjust the desired flesh tone color. Toggle the joystick up or down to adjust the hue from '0' to '100'. NOTE: Hue adjustment is available only when you select Movie or Game preset mode.
  • Page 56 DP Multi Stream Transport, select On to enable MST (DP Out), select Off to disable the MST function. Connecting the Monitor for DP Multi-Stream Transport (MST) Function for details. NOTE: When DP upstream cable and DP downstream cable are connected, the OSD will set MST to On automatically.
  • Page 57 • Voice: Load profile ideal for meetings. • Movie: Load profile ideal for movies. • Game: Load profile ideal for gaming. • Music: Load profile ideal for listening to music. Reset Audio & Press the joystick to reset all settings under the Webcam Audio &...
  • Page 58 Lock With the control buttons on the monitor locked, you can prevent people from accessing the controls. It also prevents accidental activation in multiple monitors side-by-side setup. • Menu Buttons: All joystick functions are locked and not accessible by the user. •...
  • Page 59 Personalize Shortcut Key 1 Allows you to choose a feature from Preset Modes, Shortcut Key 2 Brightness/Contrast, Input Source, Aspect Shortcut Key 3 Ratio, Volume, Speaker, Microphone, Webcam, Rotation, or Display Info and set it as a shortcut Shortcut Key 4 key.
  • Page 60 Others Select this option to adjust the OSD settings, such as DDC/CI, LCD Conditioning, and so on. Display Info Press the joystick to display the monitor's current settings. │ Operating the Monitor...
  • Page 61 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 for best user experience and optimum performance of your monitor.
  • Page 62 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 Press the joystick to initiate the self-diagnostic process. 1. When initiated, a gray screen appears.

  • Page 63: Osd Messages

    OSD Messages Initial Setup When Factory Reset is selected, the following message appears: When Yes is selected, the following message appears. OSD Warning Messages When the monitor does not support a particular resolution mode, you will see the following message: │...
  • Page 64 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. Recommended mode is 1920 x 1080. NOTE: The message may be slightly different according to the connected input signal.
  • Page 65 NOTE: If you select Yes for any one of the features mentioned above, the message will not appear next time you intend to change the settings of these features. When you perform a factory reset, the message will appear again. You will see the following message before the Lock function is activated: NOTE: The message may be slightly different according to the selected settings.
  • Page 66 The OSD functions only in the normal operation mode. If you press any button other than the Power Button during the Standby mode, the following message will appear depending on the selected input: NOTE: The message may be slightly different according to the connected input signal.
  • Page 67 When Disable is selected for the Webcam, the following message appears: When the Webcam is disabled and the webcam module pop up, the following message appears: NOTE: For Webcam and Microphone to work, connect the USB upstream cable from the PC to the monitor. Troubleshooting for more information.

  • Page 68: Setting The Maximum Resolution

    Depending on your computer, complete one of the following procedures: If you have a Dell desktop or portable computer: • Go to http://www.dell.com/support, enter your service tag, and download the latest driver for your graphics card. If you are using a non-Dell computer (portable or desktop): •...

  • Page 69: Setting Up Windows Hello

    Setting Up Windows Hello ® In Windows Click Windows Start menu, click Settings. Click Accounts. Click Sign-in options. You must set up a PIN before you can enroll in Windows Hello. │ Operating the Monitor...
  • Page 70 Click Add under PIN and enter to Set up a PIN. Enter New PIN and Confirm PIN, and then click OK. Once you have done that, the options to set up Windows Hello will unlock. Click Set up under Windows Hello, enter to Windows Hello setup. │...
  • Page 71 The following message is displayed, click Get started. Keep looking directly at your screen and position yourself so that your face is in the center of the frame that appears on screen. The webcam will then register your face. │ Operating the Monitor...
  • Page 72 When the following message is displayed, click Close to exit Windows Hello setup. Once you have set up, you have another option to improve the recognition. Click Improve recognition if necessary. │ Operating the Monitor...

  • Page 73: Setting Up The Monitor Webcam As Default Setting

    If you want to set up the monitor webcam as default setting, you need to disable the notebook built-in webcam. To identify the notebook built-in webcam and disable it, please follow below instruction: Right-click DELL Monitor IR Webcam, and click Properties to open the DELL Monitor IR Webcam Properties. │...
  • Page 74 Click Details > Property and select Hardware Ids. │ Operating the Monitor...
  • Page 75 The Value will show the detail hardware ids of this DELL Monitor IR Webcam. The hardware ids of the notebook built-in webcam and the monitor webcam are different. For C2423H/C2723H, the monitor webcam hardware ids will show as below: Right-click the PC/Notebook webcam, which has different hardware ids, and then click Disable.
  • Page 76 Click Yes. The notebook webcam is now disabled and the monitor webcam will be used as the default setting. Restart the notebook. │ Operating the Monitor...

  • Page 77: Setting Up The Monitor Speaker As Default Setting

    Click Sounds to enter to Sound setting interface. If only the HDMI or DP cable is connected from your monitor to the computer, only one speaker named DELL C2423H/C2723H from the monitor will show in the Sound setting interface. │...
  • Page 78 Click DELL C2423H/C2723H, and then click Set Default, the monitor speaker will be used as the default setting. Click OK to exit the Sound setting. If the USB cable and the HDMI or DP cable are connected from the monitor to the...
  • Page 79 VoIP/UC conference applications. Audio Recording and Playback will work under this selection. • DELL C2423H/C2723H audio path is where audio streams through HDMI/ DP. Under this selection, there will not be microphone support. This selection is suitable for Audio Playback only.

  • Page 80: Troubleshooting

    Troubleshooting WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions. Self-test Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps: 1.

  • Page 81: Using The Joystick To Lock/Unlock Buttons

    If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is functioning properly. Using the Joystick to Lock/Unlock Buttons Locking the Power and Joystick Buttons You can lock the joystick and Power buttons to prevent access to the OSD menu and/or power off the monitor.

  • Page 82: Updating Monitor Firmware

    Updating Monitor Firmware You may verify your current firmware revision in Firmware. If this is not available, go to the Dell download support site for the latest application installer (Monitor Firmware Update Utility.exe) and refer to the Firmware Update Instruction User's Guide: www.dell.com/C2423H, www.dell.com/C2723H.

  • Page 83: 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 LED off connecting the monitor and the computer is properly connected and secure.
  • Page 84 • 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: http:// www.dell.com/pixelguidelines. Stuck-on Pixels LCD screen has •...
  • Page 85 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 Problems malfunctions on & connecting the monitor to the computer is connected properly and is secure.

  • Page 86: Product Specific Problems

    Image retention Faint shadow • Set the screen to turn off after a few from a static from the static minutes of screen idle time. These can image left on the image displayed be adjusted in Windows Power monitor for a long appears on the Options or Mac Energy Saver setting.
  • Page 87 No Input Signal No picture, the LED • Check the signal source. Ensure the when user controls light is white computer is not in the standby mode are pressed by moving the mouse or pressing any key on the keyboard. •...
  • Page 88 Headset with Mic Headset with Mic Use UC App Mic icon to mute / unmute (3.5 mm combo jack) (3.5 mm combo has no response jack) not working when pressing the with monitor mute monitor mute / / unmute button unmute button while using UC App When press either...
  • Page 89 Echo Cancelling when play audio/ Speakerphone (C2423H/C2723H) or video on your system DELL C2423H/C2723H on your system. • Turn Off the monitor, unplug the monitor power cord, replug it, and then turn On the monitor.
  • Page 90 Speaker volume is Speaker volume is • Increase the speaker volume of DELL low / sounds soft low / sounds soft C2423H/C2723H to maximum in the when speaker option Sound setting interface. is DELL C2423H/ • Press the Volume Up button to...
  • Page 91 Microphone is Microphone is muted • Ensure that the USB upstream cable in the Windows muted is connected between the monitor Device Manager and the computer or notebook. • Reconnect the USB upstream cable to the computer or notebook. • Ensure that the microphone is enabled / unmuted on the monitor.
  • Page 92 Front buttons do No response on the • Ensure that the USB upstream cable UC application when not work is connected from the PC to the pressing the buttons monitor. located on the front • For some UC platforms / bezel applications, the Mute function works by pressing the Mute button, but the...
  • Page 93 Teams mode. The tenant administrator should enable the account to ‘Teams Only’ mode. Webcam no image Webcam no image Select ‘DELL Monitor RGB Webcam’ as when using Skype the camera in Skype Video Device for Business (SfB) setting. Webcam being...

  • Page 94: Universal Serial Bus (Usb) Specific Problems

    Universal Serial Bus (USB) Specific Problems Common What You Possible Solutions Symptoms Experience USB interface is USB peripherals • Check that your monitor is turned On. not working are not working • Reconnect the upstream cable to your computer. • Reconnect the USB peripherals (downstream connector).

  • Page 95: Appendix

    For customers in the United States, 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.

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