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USER MANUAL UltraSharp U3223QZ DELL
Dell UltraSharp 32 Video Conferencing Monitor -U3223QZ
User's Guide

NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed.

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. Other trademarks may be trademarks of their respective owners.
2022 - 03
Rev. A00
Contents
Safety instructions....6
About your monitor ....7
Package contents 7
Product features....8
Identifying parts and controls. 10
Front view. 10
Back view....12
Bottom view 13
Monitor specifications. 14
Resolution specifications 16
Preset display modes. 17
DP Multi-Stream Transport (MST) Modes 18
USB-C Multi-Stream Transport (MST) Modes ..... 18
Electrical specifications ..... 19
Webcam – microphone specifications .....20
Speaker Specifications....20
Physical characteristics .....20
Environmental characteristics .....22
Pin assignments .....23
Plug-and-Play capability 31
LCD monitor quality and pixel policy 31
Maintenance guidelines 32
Cleaning your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Setting up the monitor.... 33
Attaching the stand 33
Using the tilt, swivel, and vertical extension . . . . . . . . . 37
Tilt, swivel and vertical extension .....37
Organizing your cables 38
Connecting your monitor 39
Dell Power Button Sync (DPBS) 43
Connecting the monitor for DPBS for the first time . . . . . . . . . . . . . . . . . 45
Using DPBS function....46
Connecting the monitor for USB-C Multi-Stream Transport (MST)
function. 48
Connecting the monitor for USB-C .....49
Operating the monitor webcam 51
Dell Peripheral Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Securing your monitor using Kensington lock (optional) . . . 53
Removing the monitor stand 54
Wall mounting (Optional) 55
Operating the monitor 56
Power on the monitor 56
Using the joystick control 56
Using the rear-panel controls 58
Front-panel button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Using the Main Menu 60
Using the OSD lock function 78
Initial Setup....81
OSD warning messages .....82
Setting the maximum resolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Multi-Monitor Sync (MMS) .86
Setting Multi-Monitor Sync (MMS) 87
Setting up Windows Hello 88
Setting up the monitor webcam as default setting. . . . . . . 92
Setting up the monitor speaker as default setting . . . . . . . 97
Built-in diagnostics 101
Common Problems. 102
Product specific problems 104
Microsoft® Teams® / Skype for Business® specific problems . 112
Universal Serial Bus (USB) specific problems ..... 114
Appendix.... 115
FCC notices (U.S. only) and other regulatory information . . . 115
Contacting Dell 115
EU product database for energy label and product information sheet 115
Safety instructions
Use the following safety guidelines to protect you 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 shipped with your monitor and printed on the product. Keep the documentation at a secure location for future reference.
⚠ 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.
⚠ WARNING: The possible long-term effect of listening to audio at high volume through the headphones (on monitor that support it) may cause damage to your hearing ability.
- Place the monitor on a solid surface and handle it carefully. The screen is fragile and can be damaged if dropped or hit with a sharp object.
- Ensure that your monitor is electrically rated 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 crystals of the display.
- Connect the power cable from the monitor to a wall outlet that is near and accessible. See Connecting your monitor.
- Do not place and use the monitor on a wet surface or near water.
- 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.
- To avoid electric shock, do not attempt to remove any cover or touch the inside of the monitor.
- Read these instructions carefully. Keep this document for future reference. Follow all warnings and instructions marked on the product.
- Certain monitors can be wall mounted using the VESA mount that is sold separately. Ensure to use the correct VESA specifications as mentioned in the wall mounting section of the User's Guide.
For information on safety instructions, see the Safety, Environmental, and Regulatory Information (SERI) document that is shipped with 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 Contact Dell.

NOTE: Some items may be optional and may not ship with your monitor. Some features may not be available in certain countries.
| Component image Component description | |||
![]() | Display | ||
![]() | Stand riser | ||
![]() | Stand base | ||
![]() | Power cable (varies by country) | ||
![]() | DisplayPort cable (DisplayPort to DisplayPort) | ||
![]() | USB 3.2 Gen2 Type-A to Type-C upstream cable | ||
![]() | USB Type-C cable (C to C) | ||
![]() | ![]() | ![]() | ·Quick Setup Guide·Safety, Environmental, and Regulatory Information·Factory Calibration Report |
Product features
The Dell UltraSharp U3223QZ monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor features include:
- 80.01 cm (31.5 in.) active area display (Measured diagonally) 3840 x 2160 (16:9) resolution, plus full-screen support for lower resolutions.
- Wide viewing angles with 100% sRGB color & 98% DCI-P3.
- Tilt, swivel and vertical extension adjustment capabilities.
• Built-in speakers (2 x 14 W).
- Removable pedestal stand and Video Electronics Standards Association (VESA™) 100 mm mounting holes for flexible mounting solutions.
- Ultra-thin bezel minimizes the bezel gap during multi-monitor usage, enabling easier set up with an elegant viewing experience.
- Extensive digital connectivity with DP helps future-proof your monitor.
- Single USB Type-C to supply power to compatible notebook while receiving video signal.
• USB-C and RJ45 ports enable a single-cable, network-connected experience.
- Plug and play capability if supported by your computer.
- On-Screen Display (OSD) adjustments for ease of set-up and screen optimization.
• Power and OSD buttons lock.
• Security lock slot.
- Stand lock.

• Power consumption ≤0.3W in Standby Mode.
• Supports Picture by Picture (PBP) Select mode.
- Allow user to switch USB KVM function in PBP mode.
- The monitor is designed with Dell Power Button Sync (DPBS) feature to control PC system power state from monitor power button.*
- The Monitor allows multiple monitors that are daisy chained via DisplayPort to synchronize a pre-defined group of OSD settings in the background by Multi-Monitor Sync (MMS).
• Premium Panel Exchange for peace of mind.
- Optimize eye comfort with a flicker-free screen and ComfortView Plus feature.
- This monitor uses low blue light panel. When the monitor is reset to factory settings or default setting (Preset mode: Standard), it works in compliance with TUV Rheinland (hardware solutions provider).
- Decreases the level of hazard blue light emitted from the screen to make viewing more comfortable for your eyes.
- 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.
• Certified for Microsoft Teams®.
- Certified for Windows Hello ^® (Face Authentication) and supports Microsoft Cortana ^® .
• Additional customization using Dell Peripheral Manager
* PC system that supports DPBS is the Dell OptiPlex 7090/3090 Ultra platform.
⚠ WARNING: The possible long-term effects of blue light emission from the monitor may cause damage to the eyes, which includes but is not limited to eye fatigue and digital eyestrain. ComfortView Plus feature is designed to reduce the amount of blue light emitted from the monitor to optimize eye comfort.
Identifying parts and controls
Front view

text_image
1235467 8 8 9 1011121314 15| Label | Description Use | |
| 1,7 | Microphones Monitor microphones (Mic). | |
| 2 | IR LED | Indicator of infrared (IR). |
| 3 | RGB Camera | Transmits your image in a video conference. |
| 4 | Proximity Sensor | The human presence wake & lock feature. |
| 5 | Webcam LED indicator | Indicator of Webcam. It will light up in white when webcam is in use. |
| 6 | IR Camera | The face recognition feature. |
| 8 | Built-in speakers | To output the sound from audio input. |

| 9 Teams button & LED LED will light in static white when Microsoft Teams® is signed in and running.LED will blink when there is a Teams notification.Short press on the button to bring up Teams and open notification. Ensure that the Teams application is signed in and is already running at the background.Long press on the button to invoke Cortana.NOTE: For the Teams button to work, ensure that the Teams account is provisioned / setup as ‘Teams Only’ mode. The tenant administrator should enable the account to ‘Teams Only’ mode.NOTE: Teams button will only work with Teams application in ‘Teams Only’ mode. Setting might vary in corporate environment, resulting in Teams button not working on the monitor. Please check with your system administrator. | |
| 10 | Hookswitch & LED LED will blink in green when there is an incoming Teams/Skype for Business (SfB) call.LED will light up in static green during Teams/Skype for Business (SfB) call.Short press to answer / end call.Long press to reject incoming call. |
| 11 Volume down & LED Short press for 2 unit volume decrement.Long press for continuous volume decrement. | |
| 12 Volume up & LED Short press for 2 unit volume increment.Long press for continuous volume increment. | |
| 13 Microphone mute & LED Press to mute and unmute microphone.LED will light up in static red when mic is muted.LED will go dark when mic is enabled/unmuted. | |
| 14 Camera Mute & LED Press to lock and unlock camera shutter.If locked, icon will light up in red, no software can override and open camera shutter to use the camera.If unlocked, icon will not light up, software can open camera shutter to use the camera when it’s needed.NOTE: This camera disable button must not be confused with “Webcam and presence sensor: enable / disable” in OSD.Disabling “webcam & presence sensor” will turn off the whole webcam module, webcam and sensor will not appear in the system. | |
| 15 Power LED indicator Solid | white light indicates the monitor is turned on and functioning normally. Breathing white light indicates the monitor is in Standby Mode. |
Back view

text_image
1 2 3 4 5 6 DELL
natural_image
Computer monitor with Dell logo and 7-pin cable, no visible text or symbols on the device itself| Label | Description Use | |
| 1 VESA | mounting holes (100 mm x 100 mm-behind attached VESA cover) | Wall mount monitor using VESA-compatible wall mount kit (100 mm x 100 mm). |
| 2 Regulatory label Lists the regulatory approvals. | ||
| 3 Stand release button Releases stand from the monitor. | ||
| 4 Power On/Off button To turn the monitor on or off. | ||
| 5 Joystick Use it to control the OSD menu. | For more information, see Operating the Monitor. | |
| 6 Mac address, 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 computer and access warranty information. | |
| 7 Cable-management slot Use to organize cables by inserting them through the slot. | ||

Bottom view

text_image
13 10 2111295 8 16141514567| Label | Description Use | |
| 1 | Security lock slot (based on Kensington Security SlotTM) | Secures monitor with security cable lock (sold separately) |
| 2 | Power connector | Connect the power cable. |
| 3 | HDMI HDMI port | Connect your computer with the HDMI cable. |
| 4 | [00HZ]DisplayPort (in) | Connect your computer with the DisplayPort cable. |
| 5 | ![]() ↔90W | Connect to your computer using the USB Type-C cable. The USB Type-C port offer the fastest transfer rate (USB 3.2 Gen 2) and the alternate mode with DP 1.4 support the following, and PD 20 V/4.5 A, 15 V/3 A, 9 V/3 A, 5 V/3 A. Maximum resolution of 3840 x 2160 at 60 HzNOTE: USB Type-C is not supported on Windows versions that are prior to Windows 10. |
| 6 | DP port (out)![]() | DP output for MST (multi-stream transport) capable monitor. To enable MST, refer to instruction on sectionConnecting the Monitor for DP MST Function.NOTE: Remove the rubber plug when using DP out connector. |
| 7 | USB-C upstream port![]() | Connect the USB cable that comes with your monitor to the computer. Once this cable is connected, you can use the USB downstream connectors on the monitor. |
| 8,9,10,11,14 | Super speed USB 10 Gbps (USB 3.2 Gen2) | Connect your USB device. You can use these ports only after you have connected the USB cable (Type-A to Type-C or Type-C to Type-C) from the computer to the monitor. Port 14 with battery icon supports Battery Charging Rev. 1.2. |
| 12 | RJ-45 connector | Connect Internet. You can surf Internet via RJ45 only after you have connected the USB cable(Type-A to Type-C or Type-C to Type-C) from the computer to the monitor. |
| 13 Stand lock Lock the stand to the monitor using a M3 x 6 mm screw(screw not included). | ||
| 15 | Headphone jack | Connect headphones or headset to playback audio through HDMI or DisplayPort or USB Type-C audio channels. NOTE: Excessive sound pressure from earphones or headphones can cause hearing damage or loss. Adjustment of the equalizer to maximum increases the earphones and headphones output voltage and therefore the sound pressure level. |
| 16 | USB Type-C downstream port | Port with icon supports 5 V/3 A. Connect your USB device. You can use these ports only after you have connected the USB cable (Type-A to Type-C or Type-C to Type-C) from the computer to the monitor. NOTE: This port is downstream only and unable to broadcast video or sound to the display or speakers. |
Monitor specifications
| Screen type Active | matrix - TFT LCD |
| Panel Type In-plane | switching Technology |
| Aspect ratio 16:9 | |
| Viewable image dimensions | |
| Diagonal 80.01 cm | (31.5 in.) |
| Active Area | |
| Horizontal | 697.31 mm(27.45 in.) |
| Vertical | 392.23 mm(15.44 in.) |

| Area 273505.90 mm ^2 (423.93 in. ^2 ) | |
| Pixel pitch 0.18159(H) mm x 0.18159 (V) mm | |
| Pixel per inch(PPI) | 140 |
| Viewing angle | |
| Horizontal 178° (typical) | |
| Vertical 178° (typical) | |
| Brightness 400 cd/m ^2 (typical) | |
| Contrast ratio 2000 to 1 (typical) | |
| Display screen coating | Anti-glare treatment of the front polarizer (3H) hard coating |
| Backlight LED | |
| Response Time(Gray to Gray) | 5 ms (Fast mode)8 ms (Normal mode) |
| Color depth 1.07 Billion colors ^1 | |
| Color gamut ^2 | sRGB 100%Rec.709 100%DCI-P3 ≥ 98% |
| Connectivity · 1 x DP 1.4 (HDCP 2.2)· 1 x HDMI 2 .0 (HDCP 2.2)· 1 x USB Type-C (USB 3.2 Gen 2 upstream port)· 1 x USB Type-C (Alternate mode with DisplayPort 1.4/1.2, USB 3.2 Gen 2 upstream port, Power Delivery PD up to 90 W)· 1 x USB Type-C downstream (15 W), USB 3.2 Gen 2 (10 Gbps)· 1 x DP (Out) with MST· 4 x super speed USB 10 Gbps (USB 3.2 Gen 2)· 1 x super speed USB 10 Gbps (USB 3.2 Gen 2) with BC 1.2 charging capability at 2 A (max)· 1 x 3.5 mm headphone jack· 1 x RJ45 | |
| Border width (edge of monitor to active area) | |
| Top | 38.45 mm |
| Left/Right | 7.65 mm |
| Bottom | 22.15 mm |
| Adjustability | |
| Height adjustable stand | 150 mm |
| Tilt -5° to 21° | |
| Swivel -30° to 30° | |
| Pivot NA | |
| Slant adjust -4° to 4° | |
| Cable management | Yes |
| Dell Display Manager (DDM) Compatibility | Easy Arrange and other key features |
| Security Security lock slot (cable lock sold separately) | |
^1 Video output from DP/HDMI port at maximum resolution 3840 x 2160 at 60Hz is 1.07 billion colors. Video output from USB-C port at maximum resolution 3840 x 2160 at 60Hz is 16.78 million colors.
^2 At panel native only, under Custom Mode preset.
Resolution specifications
| Horizontal scan range | 15 kHz to 140 kHz |
| Vertical scan range | 23 Hz to 86 Hz |
| Maximum preset resolution | 3840 x 2160 at 60 Hz |
| Video display capabilities (HDMI & DP & USB Type-C alternate mode) | 480p, 560p, 720p, 1080i(HDMI only), 1080p, 2160p |
Preset display modes
| Display mode Horizontal frequency (kHz) | Vertical frequency (Hz) | Pixel clock (MHz) | Sync polarity (Horizontal/ Vertical) |
| VESA, 720 x 400 | 31.47 | 70 | -/+ |
| VESA, 640 x 480 31.47 | 60 25.17 -/- | ||
| VESA, 640 x 480 37.50 | 75 31.5 -/- | ||
| VESA, 800 x 600 37.88 | 60 40 +/+ | ||
| VESA, 800 x 600 | 46.88 | 75 | +/+ |
| VESA, 1024 x 768 | 48.36 | 60 65 -/- | |
| VESA, 1024 x 768 | 60.02 | 75 | +/+ |
| VESA, 1152 x 864 | 67.50 | 75 | +/+ |
| VESA, 1280 x 1024 | 64.0 | 60 | +/+ |
| VESA,1280 x 1024 | 80.0 | 75 | +/+ |
| VESA, 1600 x 900 | 55.99 | 60 118.25 +/+ | |
| VESA, 1920 x 1080 | 67.50 | 60 | +/+ |
| CVR, 2560 x 1440 | 88.79 | 60 | +/+ |
| VESA, 3840 x 2160 | 133.31 | 60 | +/- |
| VESA, 3840 x 2160 | 135.00 | 60 | +/- |
DP Multi-Stream Transport (MST) Modes
| MST Source Monitor M | Maximum number of external monitors that can be supported |
| 3840 x 2160 at 60 Hz | |
| 3840 x 2160/60Hz 2 |
NOTE: Maximum external monitor resolution with the maximum number of external monitors supported is 3840 × 2160 / 60Hz only when DSC is enabled on graphic cards or with graphic cards that support DSC.
USB-C Multi-Stream Transport (MST) Modes
| OSD Display Info: Link rate(current) | Maximum number of external monitors that can be supported |
| 3840 x 2160 at 60 Hz | |
| HBR3 | 2 |
| HBR2 | 1 |

NOTE: Maximum external monitor resolution with the maximum number of external monitors supported is 3840 x 2160 / 60Hz only when DSC is enabled on graphic cards or with graphic cards that support DSC.

Electrical specifications
| Video input signals | ·Digital video signal for each differential linePer differential line at 100 ohm impedance·DP/HDMI/USB Type-C signal input support |
| Input voltage/frequency/current | 100-240 VAC / 50 or 60 Hz ± 3 Hz / 2.5 A (maximum) |
| Inrush current | 120 V: 42 A (Max.)240 V: 80 A (Max.)Inrush current is measured at an ambient temperature of 0°C |
| Power Consumption | 0.3 W (Off Mode) ^1 0.3 W (Standby Mode) ^1 29.90 W (On Mode) ^1 240 W (Max) ^2 28.43 W ( P_on ) ^3 97.36 kWh (TEC) ^3 |
^1 As defined in EU 2019/2021 and EU 2019/2013.
^2 Max brightness and contrast setting with maximum power loading on all USB ports.
^3 P _on : 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.
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 should not rely upon this information in making decisions about electrical tolerances or otherwise. No warranty as to accuracy or completeness is expressed or implied.

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.

Webcam – microphone specifications
| Lens Field of view (horizontal) | 65 / 78 / 90 degree | |
| Focus mode 5x digital zoom | ||
| Focus area 25 cm ~∞ | ||
| Focusing distance 500 cm | ||
| Image Sensor Active array size | 8 mega-pixel | |
| Video Specification Video frame rate | 3840 x 2160 (4K UHD)- up to 30 frames per second | |
| 1920 x 1080 (Full HD)- up to 60 frames per second | ||
| Audio Specification Microphone type | Digital microphone x 2 |
Speaker Specifications
| Speaker rated power 2 | x 14 W |
| Frequency Response | 100 Hz - 20 kHz |
| Impedance | 4 ohm |
Physical characteristics
| Connector type · DP | connectorHDMI connectorUSB Type-C connectorAudio jackRJ45 connectorUSB Type-C upstream connector x 2USB 3.2 Gen 2 downstream connector x 5USB Type-C downstream connector |
| Signal cable type | DP to DP 1.8 M cableUSB 3.2 Gen 2 Type-A to C 1M cableUSB 3.2 Gen 2 Type-C to C 1M cable |
| Dimensions (with stand) | |
| Height (extended) | 647.27 mm (25.48 in.) |
| Height (compressed) | 497.84 mm (19.60 in.) |

| Width | 712.60 mm (28.06 in.) |
| Depth | 230 mm (9.06 in.) |
| Dimensions (without stand) | |
| Height | 475.54 mm (18.72 in.) |
| Width | 712.60 mm (28.06 in.) |
| Depth | 57.97 mm (2.28 in.) |
| Stand dimensions | |
| Height (extended) | 458.30 mm (18.04 in.) |
| Height (compressed) | 411.50 mm (16.20 in.) |
| Width | 300 mm (11.81 in.) |
| Depth | 230 mm (9.06 in.) |
| Weight | |
| Weight with packaging | 16.15 kg (35.60 lb) |
| Weight with stand assembly and cables | 11.90 kg (26.23 lb) |
| Weight without stand assembly (For wall mount or VESA mount considerations - no cables) | 7.26 kg (16.01 lb) |
| Weight of stand assembly | 4.26 kg (9.39 lb) |
Environmental characteristics
| Compliant Standards | |
| ·ENERGY STAR certified Monitor.·EPEAT registered where applicable. EPEAT registration varies by country.Seehttps://www.epeat.netfor registration status by country.·TCO Certified & TCO Certified Edge.·RoHS Compliant.·BFR/PVC Free monitor (excluding external cables).·Meets NFPA 99 leakage current requirements.·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 5,000 m (16,404 ft) (maximum) | |
| Non-operating 12,192 m (40,000 ft) (maximum) | |
| Thermal dissipation 818.91 BTU/hour (maximum)102.02 BTU/hour (on mode) |
Pin assignments
DP port (in)

text_image
19 17 15 13 11 9 7 5 3 1 20 18 16 14 12 10 8 6 4 2| Pin number 20-pin side of the connected signal cable | |
| 1 ML3(n) | |
| 2 GND | |
| 3 ML3(p) | |
| 4 ML2(n) | |
| 5 GND | |
| 6 ML2(p) | |
| 7 ML1(n) | |
| 8 GND | |
| 9 ML1(p) | |
| 10 ML0(n) | |
| 11 GND | |
| 12 ML0(p) | |
| 13 CONFIG1 | |
| 14 CONFIG2 | |
| 15 AUX CH (p) | |
| 16 GND | |
| 17 AUX CH (n) | |
| 18 Hot Plug Detect | |
| 19 Return | |
| 20 DP_PWR | |
DP port (out)

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19 17 15 13 11 9 7 5 3 1 20 18 16 14 12 10 8 6 4 2| 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 CONFIG1 | |
| 14 CONFIG2 | |
| 15 AUX CH(p) | |
| 16 GND | |
| 17 AUX CH(n) | |
| 18 Hot Plug Detect | |
| 19 Return | |
| 20 DP_PWR | |

HDMI port

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19 17 15 13 11 9 7 5 3 1 18 16 14 12 10 8 6 4 2| Pin number 19-pin side of the connected signal cable | |
| 1 TMDS DATA 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 |
USB Type-C port

other
USB Type-C receptacle | Label | Pin Number | |---|---| | GND | 12 | | SSRXp1 | 11 | | SSRXn1 | 10 | | VBUS | 9 | | SBU2 | 8 | | Dn1 | 7 | | Dp1 | 6 | | CC2 | 5 | | VBUS | 4 | | SSTXn2 | 3 | | SSTXp2 | 2 | | GND | 1 | A typically connected to a charger through a Type-C cable| Pin Signal | Pin Signal | ||
| A1 GND B12 GND | |||
| A2 SSTXp1 B11 SSRXp1 | |||
| A3 SSTXn1 B10 SSRXn1 | |||
| A4 VBUS B9 VBUS | |||
| A5 CC1 B8 SBU2 | |||
| A6 Dp1 B7 Dn1 | |||
| A7 | Dn1 | B6 | Dp1 |
| A8 SBU1 | B5 CC2 | ||
| A9 VBUS B4 VBUS | |||
| A10 | SSRXn2 | B3 SSTXn2 | |
| A11 | SSRXp2 | B2 | SSTXp2 |
| A12 | GND B1 GND | ||

Universal Serial Bus (USB)
This section gives you information about the USB ports available on your monitor.

NOTE: Up to 2 A on USB downstream port (port with battery icon) with BC 1.2 compliance devices; up to 0.9 A on the other 4 USB downstream ports; Up to 3 A on USB-C downstream port (port with icon) with 5 V/3 A compliance devices.
Your computer has the following USB ports:
- 2 upstream - at rear.
- 6 downstream - 2 at bottom, 4 at rear.
Power Charging Port - the ports with • battery icon supports fast current charging capability if the device is BC 1.2 compatible. The USB Type-C downstream port with • icon supports fast current charging capability if the device is 5V/3A compatible.

NOTE: The monitor's USB ports work only when the monitor is on or in Standby Mode. On in Standby Mode, if the USB cable (A to C or C to C) is plugged in, the USB ports can work normally. Otherwise, follow the OSD setting of Other USB Charging, if the setting is “On in Standby Mode” then USB work normally, otherwise USB is disabled. If you turn off the monitor and then turn it on, the attached peripherals may take a few seconds to resume normal functionality.
Super speed USB 10 Gbps (USB 3.2 Gen2) device
| Transfer speed | Data rate | Maximum power consumption (each port) |
| Super speed+ 10 Gbps | 4.5 W | |
| Super speed 5 Gbps | 4.5 W | |
| Hi-Speed * 480 Mbps | 4.5 W | |
| Full speed * | 12 Mbps | 4.5 W |
* Device speed when High Resolution is selected.
USB 3.2 Gen2 (10Gbps) downstream port (Bottom)

USB 3.2 Gen2 (10Gbps) downstream port (Rear)

| Pin number Signal | name Pin number Signal | name | |
| 1 VBUS 1 VBUS | |||
| 2 D- 2 D- | |||
| 3 D+ 3 D+ | |||
| 4 GND 4 GND | |||
| 5 StdA_SSRX- 5 StdA_SSRX- | |||
| 6 StdA_SSRX+ 6 StdA_SSRX+ | |||
| 7 GND_DRAIN 7 GND_DRAIN | |||
| 8 StdA_SSTX- 8 StdA_SSTX- | |||
| 9 StdA_SSTX+ | 9 StdA_SSTX+ | ||
| Shell | Shield Shell | Shield |
RJ45 Port (Connector Side)

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Activity LED Speed LED 8 1| Pin No. | 10BASE-T100BASE-T | 1000BASE-T |
| 1 Transmit+ BI_DA+ | ||
| 2 Transmit- BI_DA- | ||
| 3 Receive+ BI_DB+ | ||
| 4 Unused BI_DC+ | ||
| 5 Unused BI_DC- | ||
| 6 Receive- BI_DB- | ||
| 7 Unused BI_DD+ | ||
| 8 Unused BI_DD- | ||
Driver installation
Install the Realtek USB GBE Ethernet Controller Driver available for your system. This is available for download at https://www.dell.com/support under the “Driver and download” section.
Network (RJ45) data rate via USB-C max speed is 1000 Mbps.

NOTE: This LAN port is 1000Base-T IEEE 802.3az compliant, supporting 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. Functionality may vary with Non Dell PC's.
RJ45 Connector LED status:

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Right LED Left LED LED| LED Color Description | |
| Right LED Amber or Green Speed indicator:• Amber On - 1000 Mbps• Green On - 100 Mbps• Off - 10 Mbps | |
| Left LED Green Link / Activity indicator:• Blinking - Activity on the port.• Green On - Link is being established.• Off - Link is not established. | |

NOTE: RJ45 cable is non in-box standard accessory.

Plug-and-Play capability
You can connect the monitor to any Plug and Play-compatible system. The monitor automatically provides the computer with its Extended Display IdentificationData (EDID) using Display Data Channel (DOC) protocols so that the computer can configure itself and optimize the monitor settings. Most monitor installations are automatic; you can select different settings as required. 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 or usability. For more information on Dell Monitor Quality and Pixel Policy, see https://www.dell.com/pixelguidelines.
Maintenance guidelines
Cleaning your monitor
WARNING: Using improper methods when cleaning the monitor can result in a physical damage to the screen or the body of your Dell monitor.
CAUTION: Read and follow the Safety instructions before cleaning the monitor.
WARNING: Before cleaning the monitor, unplug the monitor power cable from the electrical outlet.
For best practices, follow the instructions in the list below 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.
△ CAUTION: Do not use detergents or other chemicals such as benzene, thinner, ammonia, abrasive cleaners, or compressed air.
△ CAUTION: Using chemicals for cleaning may cause changes in the appearance of the monitor, such as color fading, milky film on the monitor, deformation, uneven dark shade, and peeling of screen area.
WARNING: Do not spray the cleaning solution or even water directly on the surface of the monitor. Doing so will allow liquids to accumulate at the bottom of the display panel and corrode the electronics resulting in permanent damage. Instead, apply the cleaning solution or water to a soft cloth and then clean the monitor.
NOTE: Monitor damages due to improper cleaning methods and the use of benzene, thinner, ammonia, abrasive cleaners, alcohol, compressed air, detergent of any kind will lead to a 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.
- Handle your monitor with care as a darker-colored monitor may get scratched and show white scuff marks more than a lighter-colored monitor.
- To help maintain the best image quality on your monitor, use a dynamically changing screen saver and turn off your monitor when not in use.

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.
To attach the monitor stand:
- Open the front flap of the box to get the stand riser and stand base.

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3D model of a yellow box with internal compartments and a white support mechanism (no text or symbols visible)- Align and place the stand riser on the stand base.
-
Open the screw handle at the bottom of the stand base and turn it clockwise to secure the stand assembly.
-
Close the screw handle.

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Diagram illustrating the step-by-step assembly of a mechanical component, showing disassembly from a metal bracket to a fan or knob.- Open the protective cover on the monitor to access the VESA slot on the monitor.

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Open yellow cardboard box with internal compartments and a slot (no text or symbols visible)- Slide the tabs on the stand riser into the slots on the display back cover and lower the stand assembly to snap it into place.

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3D illustration of an open yellow cardboard box containing a mechanical device with blue arrows indicating motion or force (no text or symbols)
- Hold the stand riser and lift the monitor carefully, then place it on a flat surface.

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3D illustration of an open cardboard box with internal compartments and a blue circular arrow indicating rotation (no text or symbols)
NOTE: Hold the stand riser firmly when lifting the monitor to avoid any accidental damage.
- Tear the paper cushion from the monitor.

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Two-step diagram showing a yellow mechanical device with a downward arrow and a gray base, no text or symbols present.
- Lift the protective cover from the monitor.

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Illustration of a monitor with a blue upward arrow and a wavy surface, no text or symbols present.Using the tilt, swivel, and vertical extension

NOTE: The following instructions are applicable 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.
Tilt, swivel and vertical extension
With the stand attached to the monitor, you can tilt the monitor for the most comfortable viewing angle.

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5° 30° 150 mm 21° 30° 4° 4° 1 2 DOLL
NOTE: The stand is detached when the monitor is shipped from the factory.
Organizing your cables

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Front view of a Dell monitor with cable routing and a vertical stand (no text or symbols visible)After attaching all necessary cables to your monitor and computer, (see Connecting Your Monitor for cable attachment) organize all cables as shown above.
If your cable is not able to reach your PC, you may connect directly to the PC without routing through the slot on the monitor stand.
Connecting your monitor
WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions.
NOTE: Dell monitors are designed to work optimally with the Dell supplied cables inside the box. 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.
NOTE: Do not connect all the cables to the computer at the same time.
NOTE: The images are for the purpose of illustration only. The appearance of the computer may vary.
To connect your monitor to the computer:
- Turn off your computer.
- Connect the DisplayPort or USB cable, and the USB Type-C cable from your monitor to the computer.
- Turn on your monitor.
- Select the correct input source from the OSD Menu on your monitor and then turn on your computer.
NOTE: U3223QZ default setting is DisplayPort 1.4. A DisplayPort 1.1 Graphic card may not display normally. Please refer to product specific problems – No image when using DP connection to the PC to change default setting.
Connecting the HDMI cable (Optional)

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Diagram showing connections between a computer monitor, HDMI cable, and power outlet with labeled components
Connecting the DP cable

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Diagram showing connections between a desktop computer and a server, with labeled components including power, cable, and socket ports.Connecting the monitor for DP Multi-Stream Transport (MST) function

flowchart
graph TD
A["Computer 1"] -->|Bonds to| B["Server"]
C["Computer 2"] -->|Bonds to| B["Server"]
D["Power Input"] -->|Cable to| B["Server"]
E["External Power"] -->|Cable to| B["Server"]
B --> F["Output Cable"]
style A fill:#f9f,stroke:#333
style C fill:#f9f,stroke:#333
style D fill:#f9f,stroke:#333
style E fill:#f9f,stroke:#333
style B fill:#ccf,stroke:#333
style F fill:#ccf,stroke:#333
NOTE: 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.
NOTE: Remove the rubber plug when using DP out connector.

Connecting the USB-C Cable (A to C)

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Diagram showing connections between a computer monitor, cable, and desktop tower with labeled components and connection points.
NOTE: This connection only data is available and no video. Need another video connection for display.
Connecting the USB Type-C cable (C to C) (Optional)

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Diagram showing connections between a computer monitor, cable, and laptop via USB cable, with labeled components and connection points.The USB Type-C port on your monitor:
- Can be used as USB-C or DisplayPort 1.4, alternatively.
• Supports USB Power Delivery (PD), with profiles up to 90W.

NOTE: Regardless of the power requirement/actual power consumption of your laptop, or the remaining power runtime in your battery, the Dell monitor is designed to supply power delivery of up to 90 W to your laptop.
| Rated power (on laptops that have USB Type-C with Power Delivery) | Maximum charging power |
| 45 W 45 W | |
| 65 W 65 W | |
| 90 W 90 W | |
| 130 W Not supported |

Connecting the monitor for USB-C Multi-Stream Transport (MST) function

flowchart
graph TD
A["User cable"] --> B["Switch"]
C["User cable"] --> D["Switch"]
E["User cable"] --> F["Switch"]
G["User cable"] --> H["Switch"]
I["User cable"] --> J["Switch"]
K["User cable"] --> L["Switch"]
M["User cable"] --> N["Switch"]
O["User cable"] --> P["Switch"]
Q["User cable"] --> R["Switch"]
S["User cable"] --> T["Switch"]
U["User cable"] --> V["Switch"]
W["User cable"] --> X["Switch"]
Y["User cable"] --> Z["Switch"]
AA["Laptop"] --> AB["USB cable"]
AC["Laptop"] --> AD["USB cable"]

NOTE: The maximum number of supported via MST is subjected to the bandwidth of the USB-C source. Please refer to “product specific problems – No image when using USB Type-C MST”.

NOTE: Remove the rubber plug when using DP out connector.
Connecting the monitor for RJ45 Cable (Optional)

flowchart
graph TD
A["User"] --> B["Switch"]
B --> C["Device 1"]
B --> D["Device 2"]
B --> E["Device 3"]
C --> F["Switch"]
D --> G["Switch"]
E --> H["Switch"]
F --> I["Laptop"]
G --> I["Laptop"]
H --> I["Laptop"]

Dell Power Button Sync (DPBS)
The 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 compatible with Dell OptiPlex 7090/3090 Ultra platform, and is only supported over USB-C interface.

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OptiPlex 7090/3090 UltraTo make sure the DPBS function works for the first time, you should do the following steps for Dell OptiPlex 7090/3090 Ultra platform in the Control Panel first.

NOTE: DPBS only supports the port with icon.
1. Go to Control Panel.

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Control Panel Adjust your computer's settings System and Security Ensure your computer's default Save backup copies of your File with key memory Backup and friction (Windows 5) Network and Internet Connect to the Internet View network status and risks Hardware and Sound View service and graphics Adjust community used availability settings Programs Unreal a program User Accounts Change account type Appearance and Personalization Clock and Region Change data, time, or number homes Face of Access Lab Windows setup settings Systems user display2. Select Hardware and Sound, followed by Power Options.

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System and Security Control Panel > System and Security > Command Power Home Systems and Security Network and Internet Hardware and Sound Programs Edit Accounts Appropriate and Personalization Clock and Argon Time of Account Security and Maintenance Review your computer's status and resolve issues Development common computer problems Windows-DevOpsder Firewall Check fresh status - Allow an app through Windows Firewall System View account of RAM and processor speed - Allow remote access - Load remote assistance See this name of this computer Power Options Change battery settings - Change what the power battery does - Change when the computer stops File History Save backup chips of your file with File History - Fixtures your file with File History Backup and Restore (Windlines 7) Backup and restore (Windows 7) - Remove file to have backup Bitlocker Drive Encryption Manage Bitlocker Storage Space Manage Storage Service Work Folders Manage Work Folders Administrative Tools Free special space - Management and appoint your drive - Create and implement risk problems Show Event Log - Schedule tools
3. Go to System Settings

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System Settings Define power buttons and turn on password protection Choose the power settings that you need for your computers. The changes you make to the settings on this page apply to all of your power plans. Change settings that are currently unavailable Power and Sleep button settings When I press the power button: Sleep When I press the Sleep button: Sleep Shockwave settings Tension Fast charging (recommended) This helps start your PC rather after shutdowns. Restart an affected Last Wave Sleep Show in Power menu Hikimate Show in Power menu Back Show in account pictures menu. Save changes Cancel- 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, and you can select Sleep/Hibernate/Shut down.

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System Settings Control Panel > Hardware and Sound > Power Options > System Settings Define power buttons and turn on password protection Describe the power settings that you need for your computer. The changes you make it the settings on this page apply to all of your power plans. Change settings that are currently unavailable Power and sleep button settings When I press the power button Sleep Do nothing Sleep Hibernati Shut down When I press the sleep button Shutdown settings Turn on fast startup (nonsuccessful) This helps start your PC faster after shutdown. Retout isn't affected Leave More Stop Show in Power menu Hashcode Show in Power menu Lock Show in account picture menu. Save changes Cancel System Settings Control Panel > Hardware and Sound > Power Options > System Settings Define power buttons and turn on password protection Choose the power settings that you need for your computer. The changes you make it the settings on this page apply to all of your power plans. Change settings that are currently unavailable Power and sleep button settings When I press the power button Sleep Do nothing Sleep Hibernati Shutdown settings Turn on fast startup (nonsuccessful) This helps start your PC from after shutdowns. Reset isn't affected Leave More Stop Show in Power menu Hashcode Show in Power menu Lock Show in account picture menu. Save changes Cancel
NOTE: Do not select Do nothing, otherwise monitor power button cannot sync with PC system power state.

Connecting the monitor for DPBS for the first time

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Initial monitor power state(OFF) Initial system power state(OFF)For the first time setting up the DPBS function, please follow below steps:
- Make sure both the PC and monitor is OFF.
- Connect the USB-C cable from the PC to the monitor.
- Press the monitor power button to turn ON the monitor.
- Both the monitor and PC will turn ON momentarily. Wait for a while (approximately 6 seconds) and both the PC and monitor will turn OFF.
- Press either the monitor power button or PC power button, both the PC and monitor will turn ON. The PC system power state is in sync with the monitor power button.

NOTE: When the monitor and PC are both at power OFF state at first time, it is recommended that you turn ON the monitor first, then connect the USB-C cable from the PC to the monitor.

NOTE: You can power the OptiPlex 7090/3090 Ultra platform using its DC adaptor jack. Alternatively, you can power the OptiPlex 7090/3090 Ultra platform using the monitor's USB-C cable via Power Delivery (PD); please set USB-C Charging to On in Off Mode.
Using DPBS function
When you press the monitor power button or PC power button, the Monitor / PC state is as follows:

When the monitor and PC power state are both ON, while you press and hold 4 seconds on monitor power button, the screen prompt will ask if you would like to shut down the PC.

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DALL Press and hold 4s

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Slide to shut down your PC This helps start your PC factor after shutdown. Restart isn't affected. Learn More Sleep Show it Power menu. Hibernate Show it Power menu. Lock Show it account picture menu.When the monitor and PC power state are both ON, while you press and hold 10 seconds on monitor power button, the PC will shut down.

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Press and hold 10sConnecting the monitor for USB-C Multi-Stream Transport (MST) function
A PC is connected to two monitors in an initially OFF power state, and the PC system power state is in sync with Monitor 1 power button. When you press the Monitor 1 or PC power button, both the Monitor 1 and PC turns ON. Meanwhile the Monitor 2 will remain OFF. You need to manually press the power button on Monitor 2 to turn it ON.

flowchart
graph TD
A["Monitor 1"] -->|Power Line| B["Monitor 2"]
B -->|Cable Route| C["Power Supply"]
C --> D["External Control Unit"]
D --> E["Power Supply"]
E --> F["Monitor 1 Monitor 2"]
F --> G["Power Supply"]
G --> H["System power state(ON)"]
style A fill:#f9f,stroke:#333
style B fill:#ccf,stroke:#333
style C fill:#cfc,stroke:#333
style D fill:#fcc,stroke:#333
style E fill:#cff,stroke:#333
style F fill:#ffc,stroke:#333
style G fill:#cfc,stroke:#333
style H fill:#fcc,stroke:#333
Similarly, a PC is connected to two monitors in an initially ON power state, and the PC system power state is in sync with Monitor 1 power button. When you press the Monitor 1 or PC power button, both the Monitor 1 and PC turns OFF. Meanwhile the Monitor 2 will be in Standby mode. You need to manually press the power button on Monitor 2 to turn it OFF.

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System power state(OFF) Monitor 1Monitor 2
Connecting the monitor for USB-C
The Dell OptiPlex 7090 Ultra platform has two USB-C ports, so both Monitor 1 and Monitor 2 power state can sync with the PC.
While the PC and two monitors are in an initially ON power state, by pressing the power button on Monitor 1 or Monitor 2 will turn OFF the PC, Monitor 1, and Monitor 2.

NOTE: DPBS only supports the port with icon.

flowchart
graph TD
A["System power state(ON)"] --> B["Monitor 1"]
A --> C["Monitor 2"]
B --> D["Port 1"]
B --> E["Port 2"]
C --> F["Port 2"]
D --> G["Computer Interface"]
E --> H["Computer Interface"]
F --> I["Computer Interface"]
G --> J["Computer Interface"]
H --> K["Computer Interface"]
style A fill:#f9f,stroke:#333
style B fill:#ccf,stroke:#333
style C fill:#ccf,stroke:#333
style D fill:#dfd,stroke:#333
style E fill:#dfd,stroke:#333
style F fill:#dfd,stroke:#333
style G fill:#dfd,stroke:#333
style H fill:#dfd,stroke:#333
style I fill:#dfd,stroke:#333
style J fill:#dfd,stroke:#333
style K fill:#dfd,stroke:#333

Make sure to set USB-C Charging to On in Off Mode. While the PC and two monitors are in an initially OFF power state, by pressing the power button on Monitor 1 or Monitor 2 will turn ON the PC, Monitor1, and Monitor 2.

flowchart
graph TD
A["System power state(OFF)"] --> B["Monitor 1"]
A --> C["Monitor 2"]
B --> D["Port1"]
B --> E["Port2"]
C --> F["Port1"]
C --> G["Port2"]
D --> H["Pressing power button on Monitor 1 or 2"]
E --> H
F --> I["Pressing power button on Monitor 1 or 2"]
G --> J["Pressing power button on Monitor 1 or 2"]
H --> K["System power state(ON)"]
I --> K
J --> K
K --> L["Port1"]
K --> M["Port2"]
L --> N["Monitor 1"]
M --> O["Monitor 2"]

Operating the monitor webcam

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Diagram showing a monitor with a head-mounted sensor and two close-up insets illustrating the process of tool positioning.The webcam which offers the following:
• Camera offer 0-20 degree tilt adjustability
• 4K video at 30 fps and Full HD video at 60 fps
• Al Auto-framing
- 5x digital zoom
- Adjustable field-of-view with autofocus
• High Dynamic Range (HDR) and video noise reduction support
• Walk Away Lock and Wake on Approach support
• Windows Hello support
• Additional customization using Dell Peripheral Manager
Auto-framing (Single user framing) :
- If the user is within 2 meters of the webcam, the webcam will enable the Auto-framing.
- (single user framing) feature and adjust the frame to focus on the user. You can enable Autoframing to ensure the camera always keeps you in the center of the frame.
HDR and Video Noise Reduction :
- The webcam's Digital Overlap HDR guarantees superior picture quality in extreme lighting environments, while video noise reduction automatically eliminates grainy images in low light.
Dell Peripheral Manager
What is Dell Peripheral Manager?
The Dell Peripheral Manager application helps you manage and set up various Dell Peripherals connected to your computer. It allows the user to make changes to webcam settings of the device and provides additional customization.
For more details on the application and the customizations available for the Dell U3223QZ, find the User's Guide for Dell Peripheral Manager at
www.dell.com/support.
Securing your monitor using Kensington lock (optional)
The security lock slot is located at the bottom of the monitor. (See Security lock slot). Secure your monitor to a table using the Kensington security lock.
For more information on using the Kensington lock (purchased separately), see the documentation that is shipped with the lock.

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Diagram showing cable installation with lock and lock icon, illustrating cable termination setup
NOTE: The image is for the purpose of illustration only. Appearance of the lock may vary.
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. If you are removing a stand that you purchased from any other source, follow the setup instructions that are included with the stand.
CAUTION: Place the monitor screen on the desktop. Take note that the webcam is slightly protruded out of the monitor screen, please protect the webcam surface to prevent wear by the desktop.
- Place the monitor on a soft cloth or cushion.
- Press and hold the stand-release button.
- Lift the stand up and away from the monitor.

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Diagram showing a device with labeled parts and arrows indicating steps 2 and 3, likely illustrating a process or assembly.
Wall mounting (Optional)

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Exterior view of a modern office building (no signage)
NOTE: Use M4 x 10 mm screws to connect the monitor to the wall-mounting kit.
Refer to the instructions that come with the VESA-compatible wall mounting kit.
- Place the monitor on a soft cloth or cushion on a stable flat table.
- Remove the stand.
- Use a Phillips crosshead screwdriver to remove the four screws securing the plastic cover.
- Attach the mounting bracket from the wall mounting kit to the monitor.
- Mount the monitor on the wall as instructed in 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 29.04 kg (64.02 lb).
Operating the monitor
Power on the monitor
Press the button to turn on the monitor.

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Computer monitor with a Drell logo and a hand interacting with the screen (no text or symbols visible)Using the joystick control

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Computer monitor with Drell logo and a hand pressing a button (no text or symbols visible)To modify the OSD adjustments using the joystick control on the rear end of the monitor, do the following:
- Press the joystick to open the OSD Menu Launcher.
- Move the joystick up/down/left/right to toggle between the OSD menu options.

Joystick Functions
Joystick Description

Press joystick to open the OSD Menu Launcher.

For right and left navigation.

For up and down navigation.
Using the rear-panel controls
Press the Joystick to open the OSD Menu Launcher.

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Display InfoMenu Launcher
- Toggle the Joystick Up to open the Main Menu.
- Toggle the Joystick Left or Right to select the desired Shortcut Keys.
- Toggle the Joystick Down to Exit.
Menu Launcher Details
The following table describes the Menu Launcher icons:
| Options Description | |
| Shortcut key: Menu | Use this Menu button to launch the on-screen display (OSD) and select the OSD menu. |
| Shortcut key: Preset Modes | Use this button to choose from a list of preset color modes. |
| Shortcut key: Brightness/Contrast | To directly access the Brightness/Contrast adjustment sliders. |
| Shortcut key: Display Info | Use this button to choose from a list of Display Info. |
| Shortcut key: Volume | Use this button to adjust the volume of the built-in speakers. |

| Options Description | |
![]() | Use this button to choose from a list of Input Source. |
| Shortcut key: Input Source | |
![]() | Use this button to choose from a list of Aspect Ratio. |
| Shortcut key: Aspect Ratio | |
![]() | Use this button to go back to the main menu or exit the OSD main menu. |
| Exit | |
Front-panel button
Use the buttons on the front of the monitor to adjust the image settings.

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Circular icon with five blue checkmark symbols (up, down, check, right, down) on dark background, no text or numbers present.Front Panel Description
| 1 | ![]() | ![]() | Use the Up (increase) and Down (decrease) buttons to adjust items in the OSD menu. |
| Up | Down | ||
| 2 | ![]() | Use the Previous button to go back to the previous menu. | |
| Previous | |||
| 3 | ![]() | Use the Next button to confirm your selection. | |
| Next | |||
| 4 | ![]() | Use the Tick button to confirm your selection. | |
| Tick | |||

Using the Main Menu
| Icon Menu and Submenus | Description | |
![]() | Brightness/ Contrast | Use this menu to activate Brightness/Contrast adjustment. |
![]() | ||
![]() | ||
| Brightness Adjusts the luminance of the backlight (Range: 0 - 100).Move the Joystick Up to increase brightness.Move the Joystick Down to decrease brightness. | ||
| Contrast | Adjust the Brightness first, and then adjust Contrast only if further adjustment is necessary.Move the Joystick Up to increase contrast and Move the Joystick Down to decrease contrast (Range: 0 - 100).The Contrast function adjusts the degree of difference between darkness and lightness on the monitor screen. | |

| Icon Menu and Submenus | Description |
| Input Source | Use the Input Source menu to select between different video inputs that are connected to your monitor. |
![]() | |
![]() | |
| USB-C 90 W | Select USB-C 90 W input when you are using the USB-C 90 W connector. Press the joystick button to confirm the selection. |
| DP | Select DP input when you are using the DP(DisplayPort) connector. Press the joystick button to confirm the selection. |
| HDMI Select the HDMI input when you are using the HDMI connector. Press the joystick button to confirm the selection. | |
| Auto Select Allows you to scan for available input sources. Press to select this function. | |
| Auto Select for USB-C | Press to select these functions:Prompt for Multiple Inputs: always show Switch to USB-C Video Input message for user to choose whether to switch or not.Yes: The monitor always switch to USB-C video without asking while USB-C connected.No: The monitor will NOT auto switch to USB-C video from another available input. |
| Rename Inputs | Allows you to Rename Inputs. |
| Reset Input Source | Resets all settings under the Input Source menu to the factory defaults. Press to select this function. |

Icon Menu and
Submenus
Description

Color Adjusts the color setting mode.

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UltraSharp 32 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio & Webcam Menu Personalize Others Present Modes Reset Color Standard RGBInput Color Format Exit
Preset Modes When you select Preset Modes, you can choose
Standard, Movie, Game, Color Temp, Color Space or Custom Color from the list.

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UltraSharp 32 Monitor Brightness/Contrast Input Source Color Display PIP/PBP USB Audio & Webcam Menu Personalize Others Present Modes Input Color Format Hua Saturation Reset Color Standard Movie Game Color Temp Color Space Custom Color Exit

| Icon Menu and Submenus | Description |
| 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 content on the screen.Movie: Ideal for movies.Game: Ideal for most gaming applications.Color Temp: The screen appears warmer with a red/yellow tint with slider set at 5,000K or cooler with blue tint with slider set at 10,000K.Color Space: Allows users to select the color space: sRGB, Rec. 709, DCI-P3.Custom Color: Allows you to manually adjust the color settings. Press the joystick left and right buttons to adjust the Red, Green, and Blue values and create your own preset color mode. | |
| Input Color Format | Allows you to set the video input mode to: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.![]() |
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| Hue | Use Joystick Up or Down to adjust the Hue from 0 to 100.NOTE: Hue adjustment is available only for Movie and Game mode. |
| Saturation | Use JoystickUporDownto adjust theSaturationfrom 0 to 100.NOTE:Saturation adjustment is available only forMovieandGamemode. |
| Reset Color | Resets your monitor’s color settings to the factory defaults.Press ⬇ to select this function. |

Display Use the Display menu to adjust image.

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UltraSharp 32 Monitor Brightness/Contrast Aspect Ratio > 16:9 Input Source > 50%Sharpness Color Response Time > Normal Display Smart HDR > Off PIP/PBP MST Off USB USB-C Prioritization > High Data Speed Audio & Webcam Multi-Monitor Sync > Off Menu Reset Display Personalize Others < Exit
| Aspect Ratio | Adjust the image ratio to 16:9, Auto Resize, 4:3, 1:1. |
| Sharpness Makes the image look sharper or softer.Move the joystick up and down to adjust the sharpness from ‘0’ to ‘100’. | |
| Response Time Allows you to set the Response Time to Normal or Fast. | |

| Icon Menu and Submenus | Description |
| Smart HDR | Press to select these functions. Smart HDR (High Dynamic Range) automatically enhances the display output by adjusting the settings optimally to resemble life-like visuals. Desktop: This is the default mode. This mode is more suitable for general usage of the monitor with a desktop computer. Movie HDR: Use this mode during playback of HDR video content to expand the contrast ratio, brightness, and color palette. It matches the video quality with real life visuals. Game HDR: Use this mode when playing games that support HDR to expand the contrast ratio, brightness, and color palette. It makes gaming experience more realistic as intended by game developers. DisplayHDR: Best used with content that complies with DisplayHDR standards. Off: Disables Smart HDR function. NOTE: The possible peak luminance during HDR mode is 400-nits (typical). The actual value and duration during HDR playback might vary accordingly to the video content. |
| MST | DP Multi Stream Transport, Set to ON enables MST (DP out), Set to OFF disables MST function. NOTE: When DP/USB-C upstream cable and DP downstream cable is connected, monitor will set MST = ON automatically, this action will only be done once after Factory Reset or Display Reset. Please refer to Connecting the Monitor for DP Multi-Stream Transport (MST) Function. |
| USB-C Prioritization | Allows you to specify the priority to transfer the data with high resolution (High Resolution) or high speed (High Data Speed) when using the USB-C port/DisplayPort. |
| Multi-Monitor Sync | Multi-Monitor Sync allows multiple monitors that are daisy chained via DisplayPort to synchronize a pre-defined group of OSD settings in the background.An OSD option, “Multi-Monitor Sync” will be created in Display Menu to allow user to enable/disable syncing. |
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| Reset Display | Resets all settings under the Display menu to the factory defaults.Press to select this function. |
Icon Menu and
Submenus
Description

PIP/PBP This function brings up a window displaying image from another input source.

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UltraSharp 32 Monitor Brightness/Contrast Input Source Color Display PIP/PEP USB Audio & Webcam Menu Personalize Others PIP/PEP Mode Off PIP/PEP (Sub) USB - 100 V USB Segment Select / Video Span Main / Audio Main Contrast (Sub) 100%
| Main Window Sub-Window | |||
| USB Type-C | DP HDMI | ||
| USB Type-C ∨ ∨√ | |||
| DP ∨ ∨ ∨ | |||
| HDMI ∨ ∨ ∨ | |||
NOTE: The images under PBP will be displayed at the center of the screen, not full screen.
Icon Menu and
Submenus
Description
PIP/PBP Mode Adjusts the PIP or PBP (Picture by Picture) mode.
You can disable this feature by selecting Off.

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UltraSharp 32 Monitor Brightness/Contrast PIR/PBP Mode Off Input Source PIR/PBP (Sub) 50% - 50% Color USB Switch Display Video Swap PIR/PBP Audio USB Contrast (Sub) Audio & Webcam Menu Personalize Others
| PBP | |
| I | II |
Icon Menu and Submenus
Description
PIP/PBP (Sub) Select between the different video signals that may be connected to your monitor for the PBP sub-window. Press the ⏻ button to select the PBP sub-window source signal.

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UltraSharp 32 Monitor Brightness/Contrast Input Source Color Display PIR/PEP USB Audio & Webcam Menu Personalize Others PIR/PBP Mode USB-C @90 W PIR/PBP (Sub) USB Switch Video Swap Audio Contrast (Sub) USB C @90 W OP HDMI Exit
USB Switch Select to switch between the USB upstream sources in PBP mode. Move the joystick to switch among USB upstream sources in PBP mode.
Video Swap Select to swap videos between main window and sub-window in PBP mode. Move the joystick to swap main window and sub-window.
Audio Allows you to set the audio source from the main window or the sub-window.
Contrast (Sub) Adjust the Contrast level of the picture in PBP Mode. Move the Joystick to increase or decrease the contrast.
| Icon Menu and Submenus | Description | |
![]() | USB Allows you to set the USB upstream port for the DP input signals, thus the monitor's USB downstream port (For example, keyboard and mouse) can be used by the current input signals when you connect a computer to either one of the upstream ports. When you use only one upstream port, the connected upstream port is active. | ![]() |
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| NOTE: To prevent data damage or loss, before changing USB upstream ports, make sure that NO USB storage devices are in use by the computer connected to the monitor's USB upstream port. | ||
| Show KVM Setup Guide | Select this option and follow steps if you want to connect multiple computers to the monitor and use one setup of keyboard and mouse. | |

| Icon Menu and Submenus | Description |
| Audio & Webcam | Use the Audio Settings menu to adjust the audio settings.![]() |
| Volume | Allows you to increase the speaker volume.Move the joystick up and down to adjust the volume from ‘0’ to ‘100’. |
| Speaker | Select On or Off the Speaker function. |
| Microphone | Select Mute or Unmute the Microphone function. |
| Webcam & Presence Sensor | Select Enable or Disable the Webcam and Presence Sensor function.NOTE:Disabling “webcam & presence sensor” will turn off the whole webcam module, webcam and sensor will not appear in the system. “Camera disable” button will not work as well turn out of the whole webcam module, webcam and sensor will not appear in the system. “Camera disable” button will not work as well turn out of the whole webcam module, webcam and sensor will not appear in the system. “Camera disable” button will not work as well turn out of the whole webcam module, webcam and sensor will not appear in the system. “Camera disable” button will not work as well turn out of the whole webcam module, webcam and sensor will not appear in the system. |
| Audio Profiles | Expand to show the various audio profiles. |
| Reset Audio & Webcam | Resets all settings under the Audio and Webcam menu to the factory preset values. |
Icon Menu and
Submenus
Description

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.

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UltraSharp 32 Monitor Brightness/Contrast Language English Input Source Transparency 20 Color Timer 20s Display Lock Disable PIP/PBP Reset Menu USB Audio & Webcam Menu Personalize Others Exit
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 moving the Joystick up or down (Range: 0 - 100).
Timer OSD Hold Time: Sets the length of time the OSD
remains active after you press a button.
Move the joystick to adjust the slider in 1-second increments, from 5 to 60 seconds.

Icon Menu and Submenus
Description
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.

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UltraSharp 32 Monitor Brightness/Contrast Language Input Source Transparency Color Timer Display Lock Menu Buttons PIP/PBP Reset Menu Power Button USB Menu + Power Buttons Audio & Webcam Disable Menu Personalize Others Exit
- 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: Move the Joystick left and hold for 4 seconds.
Reset Menu
Resets all settings under the Reset Menu to the factory defaults.
Press to select this function.

Personalize

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UltraSharp 32 Monitor Brightness/Contrast Shortcut Key 1 Volume Input Source Shortcut Key 2 Input Source Color Shortcut Key 3 Preset Modes Display Shortcut Key 4 Brightness/Contrast PIP/PBP Shortcut Key 5 Display Info USB Power Button LED On in On Mode Audio & Webcam USB-C Charging 90W Off In Off Mode Menu Other USB Charging Off In Standby Mode Personalize Fast Wakeup Off Others Reset Personalization Exit

| Icon Menu and Submenus | Description |
| Shortcut key 1 | Select from Volume, Preset Modes, Brightness/Contrast, Input Source, Display Info set as shortcut key. |
| Shortcut key 2 | |
| Shortcut key 3 | |
| Shortcut key 4 | |
| Shortcut key 5 | |
| Power Button LED | Allows you to set the state of the power light to save energy. |
| USB-C Charging 90 W | Allows you to enable or disable USB-C Charging 90W charging function during monitor power off mode.NOTE: When this function is enabled, you will be able to charge your notebook or mobile devices through the USB-C cable even when the monitor is powered Off. |
| Other USB Charging | Allows you to enable or disable Other USB Charging function during monitor Standby mode.NOTE: When this function is enabled, you will be able to charge your mobile phone through the USB-A cable even when the monitor is in standby mode. |
| Fast Wakeup Speed up recovery time from sleep mode. | |
| Reset Personalization | Resets all settings under the Personalize to the factory defaults.Press to select this function. |
Icon Menu and
Submenus
Description

Others Select this option to adjust the OSD settings such as the DDC/CI, LCD conditioning, and so on.

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UltraSharp 32 Monitor Brightness/Contrast Display Info Select Input Source DDC/CI On Color LCD Conditioning Off Display Firmware 127108 PIP/PGP Service Tag ABCDEFG USB Self-Diagnostic Select Audio & Webcam Reset Others Menu Factory Reset ENERGY STAR Personalize Others Exit
Display Info Displays the monitor's current settings.
Press ☑ to select this function.
| UltraSharp 32 Monitor | |
| Input Source: | HDMI |
| Resolution: | 2160p Hz, 24-bit |
| Input Capability: | USB-C 90W DP 1.4 |
| HDMI 2.0 | |
| USB: | - |
| Stream Info: | |
| USB Upstream: | USB C2 |
| Model: | Dell U3223QZ |
| Firmware: | 12T106 |
| Service Tag: | CN073K0 |

Icon Menu and Submenus
Description
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.

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UltraSharp 32 Monitor Brightness/Contrast Display Info Input Source DDC/CI On Color LCD Conditioning Off Display Firmware PIP/PBP Service Tag USB Self-Diagnostic Audio & Webcam Reset Others Menu Factory Reset Personalize Others Exit
| Icon Menu and Submenus | Description |
| LCD Conditioning | Helps reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run. You can enable this feature by selecting On.![]() ![]() |
| Firmware Displays the Firmware version of your monitor. | |
| 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. | |
| Self-Diagnostic | Use this option to run the built-in diagnostics, see Built-in Diagnostics. |
| Reset Others | Resets all settings under the Others menu to the factory defaults.Press ⬇ to select this function. |
| Factory Reset Restores all preset values to the factory default settings.These are also the settings for ENERGY STAR® tests. | |
Using the OSD lock function
You can lock the front-panel control buttons to prevent access to the OSD menu and/or power button.
Use the Lock menu to lock the button(s).
- Select one of the following options.

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UltraSharp 32 Monitor Brightness/Contrast Language Input Source Transparency Color Timer Display Lock Menu Buttons PIP/PGP Reset Menu Power Button USB Audio & Webcam Menu Personalize Others Disable Exit- The following message appears.

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Are you sure you want to lock the Menu Buttons? To unlock the Button, refer to the User's Guide. Yes No- Select Yes to lock buttons. Once locked, pressing any control button will display the lock icon
Use the Joystick to lock the button(s).
Press the left directional navigation of Joystick for four seconds, a menu appears on the screen.

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Select Option:Select one of the following options:
| Options Description | ||
| 1 | ![]() | Select this option to lock OSD menu function. |
| Menu Button lock | ||
| 2 | ![]() | Use this option to lock power button. This will prevent the user to turn off the monitor using the power button. |
| Power Button lock | ||
| 3 | ![]() | Use this option to lock OSD menu and power button to turn off the monitor. |
| Menu and Power Button lock | ||
To unlock the button(s).
Press the left directional navigation of Joystick for four seconds until a menu appears on the screen. The following table describes the options to unlock the front-panel control buttons.

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Select Option:Options Description
| 1 | ![]() | Use this option to unlock OSD menu function. |
| Menu Button unlock | ||
| 2 | ![]() | Use this option to unlock power button to turn off the monitor. |
| Power Button unlock | ||
| 3 | ![]() | Use this option to unlock OSD menu and power button to turn off the monitor. |
| Menu and Power Button unlock |
Initial Setup
When you select OSD items of Factory Reset in Other feature, the following message will appear:

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Are you sure you want to reset to default settings? Yes NoWhen you select 'Yes' to reset to default settings, the following message will appear:

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32 Monitor Select 'Yes' to enable the following function(s): • Always on USB-C Charging • Other USB Charging Yes No When 'Yes' is selected, power consumption will increase. When 'No' is selected, it will comply with ENERGY STAR requirements. Individual settings of the functions can be changed in the Menu.OSD warning messages
When the monitor does not support a particular resolution mode, you can see the following message:

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The current input timing is not supported by the monitor display. Please change your input timing to 3840x2160, 60Hz or any other monitor listed timing as per the monitor specifications.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 3840 × 2160 . You can see the following message before the DDC/CI function is disabled:

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The function of adjusting display setting using PC application will be disabled. Do you wish to disable DDC/CI function? Yes NoWhen the monitor enters the Standby Mode, the following message will appear:

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DELL Going into Standby mode...Activate the computer and wake up the monitor to gain access to the OSD.
If you press any button other than the power button, the following messages will appear depending on the selected input:

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No DP Signal form your device. Press any key on the keyboard to wake up. If there is no display, press the monitor joystick to select input source.
A message is displayed while the cable supporting DP alternate mode is connected to the monitor under the following conditions:
- When Auto Select for USB-C is set to Prompt for Multiple Inputs.
- When the USB-C cable is connected to the monitor.

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Switch to USB-C Video Input: Yes NoIf the monitor connect with two ports or more, when the Auto of Input Source is selected, it will turn to the next port with signal.

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Auto USB-C 90W DP HDMI ExitSelect OSD items of On in Standby Mode in Personalize feature, the following message will appear:

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Changing to this setting ( without 7 symbol) will increase power consumption. Do you want to continue? Yes NoIf adjust the Brightness level above the default level over 75%, the following message will appear:

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Adjusting to this value will increase power consumiton above the default level. Do you want to continue? Yes No- When user selects "Yes", the power message is displayed only once.
- When user select 'No', the power warning message will pop-up again.
- The power warning message will appear again only when the user does a Factory Reset from the OSD menu.
If either USB Type-C / DP / HDMI input is selected and the corresponding cable is not connected, a floating dialog box as shown below appears.

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No DP Cable The display will go into Standby Mode in 4 minutes. www.dell.com/U3223GZ or No USB-C Cable The display will go into Standby Mode in 4 minutes. www.dell.com/U3223GZ or No HDMI Cable The display will go into Standby Mode in 4 minutes. www.dell.com/U3223GZWhen the USB upstream cable is not connected, and you press the Teams/Hookswitch/ Mute button, the following message will appear:

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This function is inactive. To enable it, you need to connect USB upstream to the monitor.NOTE: For the Teams/ Hookswitch/ Volume down/ Volume up/ Mute buttons to work, you need to connect the USB upstream cable (Type-A to Type-C or Type-C to Type-C) from the PC to the monitor.
See Troubleshooting for more information.

Setting the maximum resolution

NOTE: The steps may vary slightly depending on the version of Windows you're.
To set the maximum resolution for the monitor:
In Windows 8.1:
- For Windows 8.1, select the Desktop tile to switch to classic desktop.
- Right-click on the desktop and click Screen Resolution.
- If you have more than one monitor connected, ensure that you select U3223QZ.
- Click the Screen Resolution dropdown list and select 3840 x 2160.
- Click OK.
In Windows 10 and Windows 11:
- Right-click on the desktop and click Display Settings.
- If you have more than one monitor connected, ensure that you select U3223QZ.
- Click the Display Resolution dropdown list and select 3840 x 2160.
- Click Keep changes.
If you do not see 3840 × 2160 as an option, you must update your graphics driver to the latest version. Depending on your computer, complete one of the following procedures:
If you have a Dell desktop or laptop:
- Go to https://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 (laptop 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.
Multi-Monitor Sync (MMS)
Multi-Monitor Sync allows multiple monitors that are daisy chained via DisplayPort to synchronize a pre-defined group of OSD settings in the background.
An OSD option, Multi-Monitor Sync is available in Display Menu to allow user to enable/disable syncing.

NOTE: MMS is not supported over HDMI interface.

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UltraSharp 32 Monitor Brightness/Contrast Aspect Ratio Input Source Sharpness Color Response Time Display Smart HDR PIP/PBP MST USB USB-C Prioritization Audio & Webcam Multi-Monitor Sync On Menu Reset Display Off Personalize OthersIf Monitor 2 supports Multi-Monitor Sync, its MMS option will automatically be set to On for syncing as well.
If syncing of OSD settings across monitors is not preferred, this feature can be disabled by setting MMS option of any of the monitor to Off.

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UltraSharp 32 Monitor Brightness/Contrast Aspect Ratio Input Source Sharpness Color Response Time Display Smart HDR PIP/P8P MST USB USB-C Prioritization Audio & Webcam Multi-Monitor Sync On Menu Reset Display Off Personalize Others
OSD Settings to be synchronized
- Brightness
- Contrast
- Preset Modes
• Color Temperature - Custom Color (RGB Gain)
• Hue (Movie, Game mode)
• Saturation (Movie, Game mode) - Response Time
- Sharpness
Setting Multi-Monitor Sync (MMS)
During initial power on or connection of new monitor, user setting synchronization only start if MMS is On. All monitor should synchronize settings from Monitor 1.

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UltraSharp 32 Monitor Brightness/Contrast Aspect Ratio Input Source Sharpness Color Response Time Display Smart HDR PIP/PSP MST USB USB-C Prioritization Audio & Webcam Multi-Monical Sync On Menu Reset Display Off Personalize OthersAfter first synchronization, subsequent syncing is driven by changes to the predefined group of OSD settings from any node in the chain. Any node may initiate the changes downstream and upstream.

flowchart
graph LR
PC["PC"] -->|MMS (On)| Mon1["Monitor 1"]
Mon1 --> Mon2["Monitor 2"]
Mon2 --> Mon3["Monitor 3"]
Mon3 --> Mon4["Monitor 4"]
Mon4 --> Mon5["Monitor 5"]
Mon5 --> Mon6["Monitor 6"]
Mon6 --> Mon7["Monitor 7"]
Mon7 --> Mon8["Monitor 8"]
Mon8 --> Mon9["Monitor 9"]
Mon9 --> Mon10["Monitor 10"]
Mon10 --> PC

Setting up Windows Hello
In Windows ^® 10 / Windows ^® 11:
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.
Click Add under PIN enter to Set up a PIN. Enter New PIN and Confirm PIN, and thenclick OK.

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Create a password New password Confirm password Password hint Next CancelOnce you've done that, the options to set up Windows Hello will unlock. Click Set up under Windows Hello, enter to Windows Hello setup.

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Sign-in options Manage how you sign in to your device. Select a sign-in option to add change, an update it. Windows+Hello loss Sign in with your automatic Decode/Internet/ You can sign on or Windows, app, and services by touching Windows+Hello to recognize your loss. Save access Del up Windows+Hello fragmented This option is currently unavailable - which is possible Windows+Hello PIN This option is currently unavailable - which is possible Security key Sign in with a software security key Password Sign in with your password is masked Picture Password Sign in with your type file photo to switch your device Require sign-in If you're learn away, where should Windows require you to sign in again? Every Time Dynamic lock Windows can use devices. That are powered in your PC to learn when you're easy and lack your PC where these switches go out of range. Allow Windows to automatically lock your desire when you're safe Networks & other optionsThe following message is displayed, click Get started.

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Windows Hello setup Welcome to Windows Hello Your device just got more personal. Say goodbye to entering complex passwords and start using your face to unlock your device, verify your identity, and buy things in the Store. Learn more Get started CancelKeep 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.

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Windows Hello setup Keep looking directly at your camera. CancelWhen the following message is displayed, click Close to exit Windows Hello setup.

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Windows Hello setup All set! Use your face the next time you want to unlock your device. Tip: If you wore glasses while setting up Windows Hello, select improve recognition to go through the setup again without them. This will help us recognize you either way. Improve recognition CloseOnce you have set up, you have another option to improve the recognition. Click Improve recognition if necessary.
Setting up the monitor webcam as default setting
When using a notebook with built-in webcam to connect this monitor, in the device manager interface, you can find the notebook built-in webcam and the monitor webcam. Normally, they are in enable status, and the default setting is using notebook built-in webcam.

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Computer Management File Action View Help Computer Management (Local) System Tools Task Scheduler Event Viewer Shared Folders Local Users and Groups Performance Device Manager Storage Disk Management Services and Applications ZHS-W9000510S Audio inputs and outputs Batteries Biometric devices Bluetooth Intel(R) Wireless Bluetooth(R) Cameras Dell U3223QZ Webcam Integrated Webcam Computer Disk drives Display adapters Firmware Human Interface Devices IDE ATA/ATAPI controllers Keyboards Mice and other pointing devices Monitors Network adapters Ports (COM & LPT) Print queues Processors Security devices Sensors Software components Software devices Sound, video and game controllers Storage controllers System devices Universal Serial Bus controllers Universal Serial Bus devices USB Connector Managers Actions Device Manager More Actions
If you want to set up the monitor webcam as default setting, you need disable the notebook built-in webcam. To identify the notebook built-in webcam and disable it, please follow below instructions:
Right-click Dell Monitor IR Webcam, and click Properties to open the Dell Monitor IR Webcam Properties.

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Computer Management File Action View Help Computer Management (Local) System Tools Task Scheduler Event Viewer Shared Folders Local Users and Groups Performance Device Manager Storage Disk Management Services and Applications ZHS-W90005105 Audio inputs and outputs Batteries Biometric devices Bluetooth Intel(R) Wireless Bluetooth(R) Cameras Dell U3223QZ W- Integrated Web: Update driver Computer Disable device Disk drives Uninstall device Display adapters Scan for hardware changes Firmware Human Interface De Properties IDE ATA/ATAPI control Keyboards Mice and other pointing devices Monitors Network adapters Pcrt's (COM & LPT) Print queues Processors Security devices Sensors Software components Software devices Sound, video and game controllers Storage controllers System devices Universal Serial Bus controllers Universal Serial Bus devices USB Connector Managers Actions Device Manager More Actions Opens property sheet for the current selection.
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Dell U3223QZ Webcam Properties General Driver Details Events Dell U3223QZ Webcam Device type: Cameras Manufacturer: Microsoft Location: 0000.0014.0000.016.004.002.000.000.000 Device status This device is working properly. OK Cancel
Click Details > Property and select Hardware Ids.

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Dell U3223QZ Webcam Properties General Driver Details Events Dell U3223QZ Webcam Property Device description Device description Device instance path Hardware Ids Compatible Ids Capabilities Status Problem code Config flags Class Class Guid Inf name Driver date Driver version Provider Inf section Included Infs Matching device Id Rank of driver Service Lower filters Address Base container Id Bus number Bus reported device description Bus type Guid Configuration Id Container Id Device stack Display name Driver descriptionThe 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 U3223QZ, the monitor webcam hardware ids will show as below:

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Dell U3223QZ Webcam Properties General Driver Details Events Dell U3223QZ Webcam Property Hardware Ids Value USB\VID_413C&PID_C024&REV_0821&MI_00 USB\VID_413C&PID_C024&MI_00 OK CancelRight click the PC/Notebook webcam which has different hardware ids, and then click Disable.

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Computer Management File Action View Help Computer Management (Local) System Tools Task Scheduler Event Viewer Shared Folders Local Users and Groups Performance Device Manager Storage Disk Management Services and Applications ZHS-W90005105 Audio inputs and outputs Batteries Biometric devices Bluetooth Intel(R) Wireless Bluetooth(R) Cameras Dell U3223/07 Webpage Integrated Update driver Computer Disable device Disk drives Uninstall device Display adapter Scan for hardware changes Firmware Human Interfa Properties IDE ATA/KTAPI ( Keyboards Mice and other pointing devices Monitors Network adapters Ports (COM & LPT) Print queues Processors Security devices Sensors Software components Software devices Sound, video and game controllers Storage controllers System devices Universal Serial Bus controllers Universal Serial Bus devices USB Connector Managers Actions Device Manager More Actions Disables the selected device.
The following message is displayed:

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Integrated Webcam Disabling this device will cause it to stop functioning. Do you really want to disable it? Yes NoClick Yes. The notebook webcam is now disabled and the monitor webcam will be used as the default setting. Restart the notebook.

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Computer Management File Action View Help Computer Management (Local) System Tools > Task Scheduler > Event Viewer > Shared Folders > Local Users and Groups > Performance Device Manager Storage Disk Management Services and Applications ZHS-W90005105 Audio inputs and outputs Batteries Biometric devices Bluetooth Intel(R) Wireless Bluetooth(R) Cameras Dell U3223QZ Webcam Integrated Webcam Computer Disk drives Display adapters Firmware Human Interface Devices IDE ATA/ATAPI controllers Keyboards Mice and other pointing devices Monitors Network adapters Ports (COM & LPT) Print queues Processors Security devices Sensors Software components Software devices Sound, video and game controllers Storage controllers System devices Universal Serial Bus controllers Universal Serial Bus devices USB Connector Managers Actions Device Manager More Actions
Setting up the monitor speaker as default setting
When your computer connects multiple speakers, if you want to set up the monitor speaker as default setting, please follow below instructions:
Right-click Volume in the Windows task bar notification area.

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8:55 PM 11/18/2020Click Playback devices enter to Sound setting interface.

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Select playback device DELL U3223QZ (Intel(R) Display Audio) Speakers (2- High Definition Audio Device) Echo Cancelling Speakerphone (6- Dell U3223QZ AIf only the HDMI or DP cable is connected from your monitor to the computer, only one speaker named DELL U3223QZ from the monitor will show in the Sound setting interface.

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Sound Playback Recording Sounds Communications Select a playback device below to modify its settings: Speakers 2. High Definition Audio Device Default Device DELL U3223QZ Intel(R) Display Audio Default Communications Device Configure Set Default Properties OK Cancel Apply
Click DELL U3223QZ, and then click Set Default, the monitor speaker will be used as the default setting.

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Sound Playback Recording Sounds Communications Select a playback device below to modify its settings: Speakers 2-High Definition Audio Device Default Device DELL U322JQZ Intel(R) Display Audio Default Communications Device Configure Set Default Properties OK Cancel ApplyClick OK to exit the Sound setting.

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Sound Playback Recording Sounds Communications Select a playback device below to modify its settings: Speakers 2- High Definition Audio Device Ready Echo Cancelling Speakerphone 6- Dell U3223QZ Audio Ready DELL U3223QZ Intel(R) Display Audio Default Device Configure Set Default Properties OK Cancel ApplyIf the USB cable and the HDMI or DP cable are connected from monitor to the computer, two audio paths named DELL U3223QZ and Echo Cancelling Speakerphone U3223QZ from the monitor will show in the Sound setting interface. The U3223QZ monitor would show options for two audio paths supported in the monitor.

- Echo Cancelling Speakerphone audio path is where audio streams through USB. This is either through USB-C to USB-C cable or USB-A to USB-C cable. As the microphone path streams from monitor back to PC through USB, this selection is required for VoIP/UC conference applications. Audio Recording and Playback will work under this selection.
- DELL U3223QZ audio path is where audio streams through HDMI/ DP alternate mode. Under this selection, there will not be microphone support. This selection is suitable for Audio Playback only.
Audio Playback performance would be the same for either audio path selection. Under normal Playback with USB-C to USB-C/USB-A to USB-C and/or for UC conference applications, default selecting the Echo Cancelling Speakerphone audio path is recommended.
NOTE: If you select DELL U3223QZaudio path, please ensure that the Echo Cancelling Speakerphone volume is set to medium or high. Else, the DELL U3223QZ maximum volume may sound soft because it is limited by the Echo Cancelling Speakerphone volume. For example, when the Echo Cancelling Speakerphone volume is at 50%, and the DELL U3223QZ volume is set to 100% will have the same sound level as the former.

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Sound Playback Recording Sounds Communications Select a playback device below to modify its settings: Speakers 2- High Definition Audio Device Ready Echo Cancelling Speakerphone 6- Dell U3223QZ Audio Ready DELL U3223QZ Intel(R) Display Audio Default Device Configure Set Default Properties OK Cancel Apply Sound Playback Recording Sounds Communications Select a playback device below to modify its settings: Speakers 2- High Definition Audio Device Ready Echo Cancelling Speakerphone 6- Dell U3223QZ Audio Default Device DELL U3223QZ Intel(R) Display Audio Ready Configure Set Default Properties OK Cancel ApplyTroubleshooting

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:
- Turn off both your computer and the monitor.
- Unplug the video cable from the back of the computer. To ensure proper Self-Test operation, remove all digital and the analog cables from the back of computer.
- Turn on the monitor.
The floating dialog box should appear on-screen (against a black background), if the monitor cannot sense a video signal and is working correctly. While in 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.

text_image
No DP Cable The display will go into Standby Mode in 4 minutes. www.dell.com/U3223GZ or No USB-C Cable The display will go into Standby Mode in 4 minutes. www.dell.com/U3223GZ-
This box also appears during normal system operation if the video cable becomes disconnected or damaged.
-
Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor.
If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is functioning properly.

Built-in diagnostics
Your monitor has a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with your monitor, or with your computer and video card.

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UltraSharp 32 Monitor Brightness/Contrast Display Info Select Input Source DOC/CI On Color LCD Conditioning Off Display Firmware 12T106 PIP/PSP Service Tag ABCDEFG USB Self-Diagnostic Select Audio & Webcam Reset Others Menu Factory Reset ENERGY STAR Personalize Others
To run the built-in diagnostics:
- Ensure that the screen is clean (no dust particles on the surface of the screen).
- Press and hold Up or Down or Left or Right direction for four seconds until a menu appears on the screen.
- Using the joystick control, highlight the Diagnostics option and press the joystick button to start the diagnostics. A gray screen is displayed.
- Observe if the screen has any defects or abnormalities.
- Toggle the joystick once again until a red screen is displayed.
- Observe if the screen has any defects or abnormalities.
- Repeat steps 5 and 6 until the screen displays green, blue, black, and white colors. Note any abnormalities or defects.
The test is complete when a text screen is displayed. To exit, toggle the joystick control again.
If you do not detect any screen abnormalities upon using the built-in diagnostic tool, the monitor is functioning properly. Check the video card and computer.
Common Problems
The following table contains general information about common monitor problems you might encounter and the possible solutions:
| Common Symptoms | What you experience | Possible solutions |
| No Video/Power LED off | No picture · 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 depressed fully.· Ensure that the correct input source is selected in the Input Source menu. | |
| No Video/Power LED on | No picture or no brightness | · Increase brightness and contrast controls via 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 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: https://www.dell.com/pixelguidelines. | |
| Stuck-on Pixels LCD screen has bright 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 PixelPolicy, see Dell Support site at: https://www.dell.com/pixelguidelines. | |
| Brightness Problems | Picture too dim or too bright | · Reset the monitor to factory settings.· Adjust brightness and contrast controls via OSD. |
| Safety Related Issues | Visible signs of smoke or sparks | · Do not perform any troubleshooting steps.· Contact Dell immediately. |
| Intermittent Problems | Monitor malfunctions on & off | · Ensure that the video cable connecting the monitor to the computer is connected properly and is secure.· Reset the monitor to factory settings.· Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode. |
| Missing Color Picture missing color | · Perform monitor self-test.· Ensure that the video cable connecting the monitor to the computer is connected properly and is secure.· Check for bent or broken pins in the video cable connector. | |
| Wrong Color Picture color not good | · Change 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 | · Set the screen to turn off after a few minutes of screen idle time. These can be adjusted in Windows Power Options or Mac Energy Saver setting.· Alternatively, use a dynamically changing screensaver. |
| Mic/Webcam does not work | · USB cable not plug in or not select the correct USB source· Not set the monitor Mic/webcam as the default device | · Plug in the USB Cable (Type-A to Type-C or Type-C to Type-C), and if you connect both USB-C port, please switch the USB source in the OSD menu.· Select the monitor Mic/webcam as the default in the PC side.· Touch the Mic button and make sure the Mic mute LED is dark. |
Product specific problems
| Problem What you experience | Possible solutions | |
| Screen image is too small | Image is centered on screen, but does not fill entire viewing area | ·Check the Aspect Ratio setting in the Display menu OSD.·Reset the monitor to factory settings. |
| Cannot adjust the monitor with the joystick control on the rear of the monitor | OSD does not appear on the screen | ·Turn off the monitor, unplug the monitor power cable, plug it back, and then turn on the monitor. |
| No Input Signal when user controls are pressed | No picture, 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. Connect the signal cable again, 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 different video formats (aspect ratio) of DVDs, the monitor may display in full screen.·Run the built-in diagnostics. |
| No image when using DP connection to the PC | Blank screen · Verify which DP standard is your Graphics Card certified to. Download and install the latest graphics card driver.·Some DP 1.1a graphics card cannot support DP 1.2/1.4 monitors. Go to OSD menu, under Input Source selection, press and hold DP select joystick key for 8 seconds to change the monitor setting from DP 1.2 to DP 1.1a, DP 1.4 to DP 1.1a | |
| No image when using USB Type-C connection to computer, laptop, and so on | Blank screen · Verify if the USB Type-C interface of the device can support DP alternate mode.· Verify if the device required more than 90 W power charging.· USB Type-C interface of device cannot support DP alternate mode.· Set Windows to Projection mode.· Ensure that the USB Type-C cable is not damaged. | |
| No charging when using USB Type-C connection to computer, laptop, and so on | No charging · Verify if the device can support one of 5 V/9 V/15 V/20 V charging profiles.· Verify if the Notebook requires a >90 W power adaptor.· If the Notebook requires a >90 W power adaptor, it may not charge with the USB Type-C connection.· Ensure that you use only Dell approved adapter or the adapter that comes with the product.· Ensure that the USB Type-C cable is not damaged. | |
| Intermittent charging when using USB Type-C connection to computer, laptop, and so on | Intermittent charging | · Check if the maximum power consumption of device is over 90 W.· Ensure that you use only Dell approved adapter or the adapter that comes with the product.· Ensure that the USB Type-C cable is not damaged. |
| No image when using USB Type-C MST | Blank screen or 2nd DUT is not Prime mode | · USB Type-C input, Go to OSD menu, under Display Info check the Link Rate is HBR2 or HBR3, if Link Rate is HBR2, suggest to use USB Type-C to DP cable to turn on MST. |
| No network connection | Network dropped or Intermittent | · Do not toggle Off/On the power button when network is connected, keeps the power button On. |
| The LAN port is not functioning | OS setting or cable connection issue | ·Ensure that the latest BIOS and drivers for your computer are installed on your computer.·Ensure that the RealTek Gigabit Ethernet Controller is installed in the Windows Device Manager.·If your BIOS Setup has a LAN/GBE Enabled/Disabled option, make sure it is set to Enabled.·Ensure that the Ethernet cable is connected securely on the monitor and the hub/router/firewall.·Check the status LED of the Ethernet cable to confirm connectivity. Re-connect both ends of the Ethernet cable if the LED is not lit.·First power off the Computer and unplug the Type-C cable and power cord of the monitor. Then, power on the computer, plug in the monitor power cord and Type-C cable. |
| Monitor buttons (Mute / Volume down / Volume up / Hookswitch) not working with Microsoft Teams® App | Monitor buttons (Mute / Volume down / Volume up / Hookswitch) not working on Microsoft Teams® App with Chrome OS / Ubuntu | Use Microsoft Teams® App to perform the below tasks:·Call Icon to accept / hang up call·Volume down / Volume up adjustment·Mic mute / unmute·Video on / off |
| Video recording not working | Video recording App not working with Win 7 | ·Windows 7 not support·Switch to Windows 10 / Windows 11 |
| Headset with Mic (3.5mm combo jack) not working with monitor mute / unmute button | Headset with Mic (3.5mm combo jack) not working with monitor mute / unmute button | ·Use UC App (e.g. Microsoft Teams, Skype for Business, Zoom, etc.) Mic Icon to mute / unmute |
| When press either Volume down / Volume up or Mute button, LED not blink | When press either Volume down / Volume up or Mute button, LED not blink when connected to HDMI or DP only | Connect USB-A to USB-C cable |
| Webcam or Mic not working | Webcam or Mic not working when connected to HDMI or DP only | Connect USB-A to USB-C cable |
| Ethernet port (RJ45) cannot connect to internet | Ethernet port (RJ45) cannot connect to internet on Win 10 / Win 11 | Change the LAN Controller Power Saving from Enable to Disable |
| No sound coming from the speakers | No sound coming from the speakers when play audio/video on your system | ·Ensure that you have set the default playback device as Echo Cancelling Speakerphone DELL U3223QZ on your system.·Turn Off the monitor, unplug the monitor power cord, replug it, and then turn On the monitor.·Reset the monitor to Factory Settings. |
Problem What you
experience
Speaker volume
is low / sounds
soft
Speaker volume is low / sounds soft when speaker option is DELL U3223QZ in Sound setting interface
Possible solutions
| · Increase the speaker volume of DELL U3223QZ to maximum in the Sound setting interface |
| · Press the Volume Up button to increase the speaker volume of DELL U3223QZ |
| · If you select DELL U3223QZ audio path, please ensure that the Echo Cancelling Speakerphone volume is set to medium or high. Else, the DELL U3223QZ maximum volume may sound soft because it is limited by the Echo Cancelling Speakerphone volume. For example, when the Echo Cancelling Speakerphone volume is at 50%, and the DELL U3223QZ volume is set to 100% will have the same sound level as the former. |
Webcam is not detected
Webcam is not
detected in the
Windows Device
Manager
| · Ensure that the USB upstream cable is connected between the monitor and the computer or notebook. |
| · Ensure that the USB is assign to the port which usb USB cable plug in |
| · Reconnect the USB upstream cable to the computer or notebook. |
Webcam
cannot connect
/ Webcam
disconnected
Could not detect
Monitor camera
/ Could not
switch back to
the PC camera
| Reset the monitor to Factory Settings.Turn Off the monitor, unplug the monitor power cord, replug it, and then turn On the monitor.Select the Monitor camera again in the Camera / Video setting of your UC conference application. |
| Problem What you experience | Possible solutions | |
| Microphone is muted | Microphone is muted in the Windows Device Manager | ·Ensure that the USB upstream cable is connected between the monitor and the computer or notebook.·Ensure that the USB is assign to the port which usb USB cable plug in·Reconnect the USB upstream cable to the computer or notebook.·Ensure that the microphone is enabled/ unmuted on the monitor. If the microphone mute LED is lighting up in static red (indicates microphone muted), press the microphone button to unmute the microphone.·Ensure that the monitor's microphone is selected and enabled/unmuted on the setting in the UC application. |
| Microphone volume is low / sounds soft | Microphone volume is low / sounds soft to the other participant when in audio/video call | ·Ensure the Mute button's LED will go dark (indicates microphone unmuted).·Adjust the distance between the user and the microphone. The user should avoid sitting too far away from the microphone. The most optimum distance between the user and the microphone is 70 cm.·Ensure that the monitor's microphone is selected and enabled/unmuted on the setting in the UC application.·Increase the microphone volume in the Sound setting interface at the PC side / in the UC application. |
| Front buttons don't work | No response on the UC application when press on the buttons located on the speaker | ·Ensure that the USB upstream cable (Type-A to Type-C or Type-C to Type-C) is connected from the PC to the monitor.·Ensure that the USB is assign to the port which usb USB cable plug in·For some UC platforms / applications, the Mute function works by pressing the Mute button, but the Mute Icon on the UC platform is not sync (Icon shows unmute). |
| Webcam image looks over-exposed | Webcam image shows over-exposed background | Adjust the environment lighting condition.Ensure the monitor is setup at a well lighted environment, preferably under ceiling lights. The user should avoid a dim / dark background. The user should avoid direct facing a window with bright sunlight.Alternatively, you may use Dell Peripheral Manager to adjust the webcam setting of color. |
| Webcam image looks grainy / dark | Webcam image appears grainy / dark | Adjust the environment lighting condition.Ensure the monitor is setup at a well lighted environment, preferably under ceiling lights. The user should avoid a dim environment. |
| Webcam image looks blurry | Webcam image appears blurry / not clear. | Use a clean and slightly damp cloth to wipe the surface of the front webcam.Adjust the distance between the user and the camera. The user should avoid sitting too far away from the camera. The most optimum distance between the user and the camera is 70 cm. |
| Teams Microphone volume | Teams Microphone volume is smaller than Zoom | This is normal behavior as the volume specifications are different between Teams and Zoom. |
| Teams/Zoom small window distorted | Teams/Zoom small window image distorted | This is normal behavior. The resolution of the small images are compressed when the main image is in high resolution (4K). If a lower resolution (720P & 1080P) is selected, there will not be any difference between the images. |
| Image quality poor | The image quality of the monitor was poor | Always poor:Check that your computer is USB 3.0-capable.Some computers have USB 3.0, USB 2.0, and USB 1.1 ports. Ensure that the correct USB port is used.Sometime poor:Network will effect the image quality,ensure your network is fine. |
| Problem What you experience | Possible solutions |
| Tof no function Presence detection/wake-up not working | ·When using Teams/Zoom call, the wake up function not working is normal.·It works when a user is not using Teams/Zoom. |
Microsoft® Teams® / Skype for Business® specific problems
| Problem What you experience | Possible solutions | |
| The Teams button is not working | Short press on the Teams button does not bring up Teams application to the foreground | · Ensure that the USB upstream cable (Type-A to Type-C or Type-C to Type-C) is connected from the PC to the monitor.· Ensure that the Teams application is signed in and is already running at the background. The Teams button's LED will light in static white.· Ensure that the Teams account is provisioned / setup as 'Teams Only' mode. The tenant administrator should enable the account to 'Teams Only' mode.· Teams button will only work with Teams application in 'Teams Only' mode. Setting might vary in corporate environment, resulting in Teams button not working on the monitor. Please check with your system administrator. |
| The Hookswitch button is not working | Short press on the Hookswitch button does not answer call | · Ensure that the USB upstream cable (Type-A to Type-C or Type-C to Type-C) is connected from the PC to the monitor.· Ensure that the Teams account is provisioned / setup as 'Teams Only' mode. The tenant administrator should enable the account to 'Teams Only' mode. |
| The Mute button is not working | Press on the Mute button does not mute and unmute microphone | · Ensure that the USB upstream cable (Type-A to Type-C or Type-C to Type-C) is connected from the PC to the monitor.· Ensure that the Mute button's LED will go dark (indicates microphone unmuted).· Ensure that the Teams account is provisioned / setup as 'Teams Only' mode. The tenant administrator should enable the account to 'Teams Only' mode. |
| Webcam no image | Webcam no image when using Skype for Business (SfB) | · Ensure that the USB upstream cable (Type-A to Type-C or Type-C to Type-C) is connected from the PC to the monitor.· Select 'DELL Monitor RGB Webcam' as the camera in Skype Video Device setting. |
| Webcam being occupied | Webcam being occupied and can’t be used | · Avoid running multiple conference softwares at the same time. While you are using ‘conference software A’, close the other ‘conference software B’. |
Universal Serial Bus (USB) specific problems
| Specific Symptoms | What you experience | Possible solutions |
| USB interface is not working | USB peripherals are not working | ·Check that your display is turned ON.·Reconnect the upstream cable to your computer.·Reconnect the USB peripherals (downstream connector).·Turn off the monitor and turn it on again.·Reboot the computer.·Certain USB devices such as portable hard drives require higher power source; connect the drive to the computer directly. |
| super speed USB 3.2 Gen 2 interface is slow. | super speed USB 3.2 Gen 2 peripherals working slowly or not working at all | ·Check that your computer is USB 3.0-capable.·Some computers have USB 3.0, USB 2.0, and USB 1.1 ports. Ensure that the correct USB port is used.·Reconnect the upstream cable to your computer.·Reconnect the USB peripherals (downstream connector).·Reboot the computer. |
| Wireless USB peripherals stop working when a USB 3.0 device is plugged in | Wireless USB peripherals responding slowly or only working as the distance between itself and its receiver decreases | ·Increase the distance between the USB 3.0 peripherals and the wireless USB receiver.·Position your wireless USB receiver as close as possible to the wireless USB peripherals.·Use a USB-extender cable to position the wireless USB receiver as far away as possible from the USB 3.0 port. |
Appendix
FCC notices (U.S. only) and other regulatory information
For FCC notices and other regulatory information, see the regulatory compliance website located at https://www.dell.com/regulatory_compliance.
Contacting Dell
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. Availability varies by country and product, and some services may not be available in your area.
To get online Monitor support content:
See https://www.dell.com/support/monitors.
To contact Dell for sales, technical support, or customer service issues:
- Go to https://www.dell.com/support.
- Verify your country or region in the Choose A Country/Region drop-down menu at the bottom-right corner of the page.
- Click Contact Us next to the country dropdown.
- Select the appropriate service or support link based on your need.
- Choose the method of contacting Dell that is convenient for you.
EU product database for energy label and product information sheet
U3223QZ: https://eprel.ec.europa.eu/qr/1104060











Power connector
↔90W
DP port (out)
USB-C upstream port




























