Dell UltraSharp 43 4K USB-C Monitor User’s Guide Model: U4320Q Regulatory model: U4320Qt
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 © 2019 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.
Contents About Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Identifying Parts and Controls . . . . . . . . . . . . . . . . . . . . . . . . 7 Monitor Specifications . . . . . . . . . . . . . . . . . . . . . .
Setting USB-C Prioritization when USB-C Charging is set to On During Power Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 PIP/PBP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Common Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Product Specific Problems . . . . . . . . . . . . . . . . . . . . . . . .
About Your Monitor Package Contents Your monitor ships with the components shown below. Make sure that you have received all the components and contact Dell if something is missing.
HDMI cable DP cable VESA Mounting kit • Quick Setup Guide • Safety, Environmental and Regulatory Information Product Features The Dell UltraSharp U4320Q monitor has an active matrix, thinfilm transistor (TFT), liquid crystal display (LCD), and LED backlight. The monitor features include: • 107.975 cm (42.51 in.) active area display (Measured diagonally) 3840 x 2160 (16:9) resolution, plus full-screen support for lower resolutions. • Wide viewing angles with 96% sRGB color.
Identifying Parts and Controls Front view 1 Label 1 2 2 Description Function buttons (For more information, see Operating the Monitor) Power on/off button (with LED indicator) About Your Monitor | 7
Back View 1 2 3 5 4 Label Description Use 1 VESA mounting holes (100 mm x 100 Wall mount monitor using VESAmm and 200 mm x 200 mm-behind compatible wall mount kit (100 mm x 100 attached VESA cover) mm and 200 mm x 200 mm). 2 Regulatory label Lists the regulatory approvals. 3 Stand release button Release stand from monitor. 4 Barcode, serial number, and Service Tag label Refer to this label if you need to contact Dell for technical support.
Bottom View 10 11 1 2 3 4 5678 9 11 Label Description Use 1 AC power port To connect the monitor power cable. 2 Security lock slot Secures monitor with security cable lock (sold separately). 3 HDMI 1 port Connect your computer with HDMI cable. 4 HDMI 2 port Connect your computer with HDMI cable. 5 DP 1 port Connect your computer with DP cable. 6 DP 2 port Connect your computer with DP cable. 7 USB Type-C/DisplayPort Connect to your computer using the USB Type-C cable. The USB 3.
Monitor Specifications Screen type Active matrix - TFT LCD Panel Type In-plane switching Technology Aspect ratio 16:9 Viewable image dimensions Diagonal 1079.75 mm (42.51 in.) Active Area Horizontal 941.18 mm (37.05 in.) Vertical 529.42 mm (20.84 in.) 498279.5 mm2 (772.12 in.2) Area Pixel pitch 0.2451 mm x 0.2451 mm Pixel per inch (PPI) 103.
Tilt -5° to 10° Swivel -20° to 20° Cable management Yes Dell Display Manager (DDM) Compatibility Easy Arrange and other key features Security Security lock slot (cable lock sold separately) Anti-theft stand lock slot (to panel) * At panel native only, under Custom Mode preset.
Preset Display Modes Display Mode Vertical Frequency (Hz) 70.0 Pixel Clock (MHz) 720 x 400 Horizontal Frequency (kHz) 31.5 28.3 Sync Polarity (Horizontal/ Vertical) -/+ VESA, 640 x 480 31.5 60.0 25.2 -/- VESA, 640 x 480 37.5 75.0 31.5 -/- VESA, 800 x 600 37.9 60.3 40.0 +/+ VESA, 800 x 600 46.9 75.0 49.5 +/+ VESA, 1024 x 768 48.4 60.0 65.0 -/- VESA, 1024 x 768 60.0 75.0 78.8 +/+ VESA, 1152 x 864 67.5 75.0 108.0 +/+ VESA, 1280 x 800 49.7 60.0 83.
Electrical Specifications Video input signals • Digital video signal for each differential line Per differential line at 100 ohm impedance • HDMI/DP/USB Type-C signal input support Input voltage/frequency/current Inrush current 100-240 VAC / 50 or 60 Hz ± 3 Hz / 3.3 A (maximum) 120 V: 30 A (Max.) 240 V: 60 A (Max.
Height (extended) 499.5 mm (19.67 in.) Height (compressed) 439.5 mm (17.30 in.) Width 320.0 mm (12.60 in.) Depth 249.0 mm (9.80 in.) Weight Weight with packaging 25.6 kg (56.44 lb) Weight with stand assembly and cables Weight without stand assembly (For wall mount or VESA mount considerations - no cables) Weight of stand assembly 17.6 kg (38.80 lb) 13.2 kg (29.10 lb) 4.0 kg (8.82 lb) Environmental Characteristics Compliant Standards • ENERGY STAR certified Monitor.
Power Management Modes If you have VESA’s DPM-compliant video card or software installed in your PC, the monitor can automatically reduce its power consumption when not in use. This is referred to as power save mode*. If the computer detects input from the keyboard, mouse, or other input devices, the monitor automatically resumes functioning. The following table shows the power consumption and signaling of this automatic power saving feature.
Pin Assignments HDMI port 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.
DP port 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 About Your Monitor | 17
USB Type-C port 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 18 | About Your Monitor
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 3 A on USB Type-C downstream port (port with icon) with 5 V/3 A compliance devices. Your computer has the following USB ports: • 4 downstream - 2 at left side, 2 at bottom side. Power Charging Port - the ports with battery icon supports fast current charging capability if the device is BC 1.
Plug-and-Play You can install the monitor in any Plug-and-Play-compatible system. The monitor automatically provides the computer system with its extended display identification data (EDID) using display data channel (DDC) protocols so the computer can configure itself and optimize the monitor settings. Most monitor installations are automatic; you can select different settings if desired. For more information about changing the monitor settings, see Operating the Monitor.
Setting Up the Monitor Attaching the Stand NOTE: The stand riser and stand base are detached when the monitor is shipped from the factory. NOTE: The procedure below is applicable for the default stand. If you purchased any other stand, see the documentation shipped with the stand to set it up. CAUTION: Place monitor of a flat, clean, and soft surface to avoid scratching the display panel. To attach the monitor stand: 1 Align the stand base protruded blocks to the matching slot on the stand.
To attach the monitor stand: 1 Place the monitor with its front facing downward on it, Lift the cover to expose the VESA area for stand assembly. 2 Insert the two tabs on the upper part of the stand to the groove on the back of the monitor. 3 Press the stand down till it snaps into its place.
Using the Tilt, Swivel and Vertical Extension NOTE: This is applicable for a monitor with a stand. If you purchased any other stand, refer to the respective stand setup guide for set up instructions. Tilt, Swivel and Vertical Extension With the stand attached to the monitor, you can tilt the monitor for the most comfortable viewing angle. 5° 20° 20° 60 mm 10° NOTE: The stand is detached when the monitor is shipped from the factory.
Connecting Your Monitor WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions. To connect your monitor to the computer: 1 Turn off your computer. 2 Connect the HDMI/DP/USB Type-C cable from your monitor to the computer. 3 Switch on your monitor. 4 Select the correct input source at monitor OSD Menu and turn on your computer.
Connecting the USB Type-C cable (C to A) USB Type-C USB 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) USB Type-C USB Type-C The USB Type-C port (bottom) on your monitor: • Can be used as USB Type-C or DisplayPort 1.4, alternatively. • Supports USB Power Delivery (PD), with profiles up to 90 W.
Organizing Your Cables After attaching all necessary cables to your monitor and computer, (see Connecting Your Monitor for cable attachment) organize all cables as shown above. Removing the Monitor Stand CAUTION: To prevent scratches on the LCD screen while removing the stand, make sure that the monitor is placed on a soft, clean surface. NOTE: The procedure below is applicable for the default stand. If you purchased any other stand, see the documentation shipped with the stand to set it up.
Wall Mounting (Optional) NOTE: Use M6 x 12 mm (200 mm x 200 mm) or M4 x 12 mm (100 mm x 100 mm) screws to connect the monitor to the wall-mounting kit. Refer to the instructions that come with the VESA-compatible wall mounting kit. 1 Place the monitor on a soft cloth or cushion on a stable, flat table. 2 Remove the stand. 3 Use a Phillips crosshead screwdriver to remove the four screws securing the plastic cover. 4 Attach the mounting bracket from the wall mounting kit to the monitor.
Operating the Monitor Turning on the Monitor Press the button to turn on the monitor. Using the Front Panel Controls Use the control buttons at the bottom edge of the monitor to adjust the characteristics of the image being displayed. As you use these buttons to adjust the controls, an OSD shows the numeric values of the characteristics as they change.
The following table describes the front panel buttons: Front‑Panel Button Description 1 Use this button to choose from a list of preset color modes. Shortcut key: Preset Modes 2 Use this button to choose from a value of Volume. Shortcut key: Volume 3 Use this menu button to launch the on-screen display (OSD) and select the OSD menu. See Accessing the Menu System. Menu 4 Use this button to go back to the main menu or exit the OSD main menu.
Using the OSD Lock function 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. Dell UltraSharp 43 Monitor Brightness/Contrast Input Source Color Menu Buttons Display Power Button Lock PIP/PBP Menu + Power Buttons Audio Disable Menu Personalize Others 1.
4 Use this icon to run the built-in diagnostics, see Built-in Diagnostics. Built-in Diagnostics 3. Hold for 4 seconds, Select the following table describes the unlock icons: Options Description 1 Use this icon to unlock OSD menu function. Menu Buttons lock 2 Use this icon to unlock power button from powering off. Power Button lock 3 Use this icon to unlock OSD menu and power button from powering off.
Front‑Panel Button Use the buttons on the front of the monitor to adjust the image settings. 1 2 3 Front Panel Button Description 1 Use the Up (increase) and Down (decrease) keys to adjust items in the OSD menu. Up Down 2 Use the OK button to confirm your selection. OK 3 Use the Back button to go back to the previous menu.
Using the On-Screen Display (OSD) Menu Accessing the Menu System NOTE: Any changes you make using the OSD menu are automatically saved if you move to another OSD menu, exit the OSD menu, or wait for the OSD menu to disappear. 1 Press the button to launch the OSD menu and display the main menu. Dell UltraSharp 43 Monitor Brightness/Contrast Input Source Color 75 % Display PIP/PBP 75 % Audio Menu Personalize Others 2 Press the and buttons to move between options.
Icon Menu and Submenus Description Brightness/ Contrast Use this menu to activate Brightness/Contrast adjustment. Dell UltraSharp 43 Monitor Brightness/Contrast Input Source Color 75 % Display PIP/PBP 75 % Audio Menu Personalize Others Brightness Contrast Input Source Brightness adjusts the luminance of the backlight (minimum 0; maximum 100). Press the button to increase brightness. Press the button to decrease brightness.
Icon Menu and Submenus USB Type-C Description Select USB Type-C input when you are using the USB Type-C connector. Use DP1 DP2 HDMI 1 to select the USB Type-C input source. Select DP1 input when you are using the DP1 (DisplayPort) connector. Use to select the DP1 input source. Select DP2 input when you are using the DP2 (DisplayPort) connector. Use to select the DP2 input source. Select HDMI 1 input when you are using the HDMI 1 connector. Use HDMI 2 to select the HDMI 1 input source.
Icon Menu and Submenus Description Preset Modes When you select Preset Modes, you can choose Standard, ComfortView, Color Temp. or Custom Color from the list. Dell UltraSharp 43 Monitor Brightness/Contrast Input Source Color Standard Preset Modes ComfortView Display Color Temp. PIP/PBP Custom Color Audio Menu Personalize Others • Standard: Default color settings. This is the default preset mode.
Icon Menu and Submenus Input Color Format Description Allows you to set the video input mode to: • RGB: Select this option if your monitor is connected to a computer (or DVD player) using the USB Type-C, DP, HDMI cable. • YPbPr: Select this option if your DVD player supports only YPbPr output.
Icon Menu and Submenus Description Allows you to specify the priority to transfer the data with high USB-C Prioritization resolution (High Resolution) or high speed (High Data Speed) when using the USB Type-C port/DisplayPort. NOTE: If your PC does not have a built-in battery pack and is powered directly from the monitor USB Type-C port (such as the Dell OptiPlex Ultra Desktop), changing USB-C Prioritization on the fly would interrupt the power from monitor to the PC.
Icon Menu and Submenus Description Audio Use the Audio Settings menu to adjust the audio settings. Dell UltraSharp 43 Monitor Brightness/Contrast Input Source Color Volume Display Audio Source PIP/PBP Speaker Audio Reset Audio 50 On Menu Personalize Others Volume Allows you to increase the speaker volume. Use ‘100’. or buttons to adjust the speaker volume from ‘0’ to Audio Source Only applicable when user turn on PIP/PBP mode. Speaker Select On or Off the Speaker function.
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. Dell UltraSharp 43 Monitor Brightness/Contrast Input Source Language English Color Transparency 20 Display Timer 20 s PIP/PBP Lock Disable Audio Reset Menu Menu Personalize Others Language Set the OSD display to one of eight languages.
Icon Menu and Submenus Lock Description Controls user access to adjustments. The buttons are locked. Dell UltraSharp 43 Monitor Brightness/Contrast Input Source Color Menu Buttons Display Power Button PIP/PBP Audio Lock Menu + Power Buttons Disable Menu Personalize Others • 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.
Icon Menu and Submenus Description Personalize Dell UltraSharp 43 Monitor Brightness/Contrast Input Source Shortcut Key 1 Preset Modes Color Shortcut Key 2 Volume Display Power Button LED PIP/PBP USB-C Charging Audio Other USB Charging Off During Standby Menu Monitor Sleep On Personalize Reset Personalization On During Active 90W Off During Power Off Others Shortcut key 1 Select from Preset Modes, Brightness/Contrast, Input Source, Aspect Ratio, PIP/PBP Mode, Volume set as shortcut
Icon Menu and Submenus Description Others Dell UltraSharp 43 Monitor Brightness/Contrast Display Info Input Source DDC/CI On HDMI CEC Off LCD Conditioning Off Firmware M2T101 Service Tag H8CJ2NF Color Display PIP/PBP Audio Menu Reset Others Personalize Factory Reset ENERGY STAR® Others Display Info DDC/CI Select this option to adjust the OSD settings such as the DDC/CI, LCD conditioning and so on. Displays the monitor’s current settings.
Icon Menu and Submenus LCD Conditioning Description Helps reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run. Select On to start the process. Dell UltraSharp 43 Monitor Brightness/Contrast Input Source On Color LCD Conditioning Off Display PIP/PBP Audio Menu Personalize Others Firmware Firmware version. Service Tag Displays the Service Tag.
OSD Warning Messages When the monitor does not support a particular resolution mode, you can see the following message: Dell UltraSharp 43 Monitor 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. U4320Q This means that the monitor cannot synchronize with the signal that it is receiving from the computer.
Dell UltraSharp 43 Monitor No USB Type-C signal from your device. Press any key on the keyboard or move the mouse or wake it up. If there is no display, press the monitor button again to select the correct input source. U4320Q If either HDMI,DP, USB Type-C input is selected and the corresponding cable is not connected, a floating dialog box as shown below appears. Dell UltraSharp 43 Monitor No HDMI Cable The display will go into Power Save Mode in 4 minutes. www.dell.
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 DP cable is connected to the monitor.
If USB-C Charging 90W is set to On During Power Off, when you select OSD item of USB-C Prioritization to High Resolution or High Data Speed in Display feature, the following message will appear: Dell UltraSharp 43 Monitor Dynamic switching of USB-C Prioritization is disabled when Always On USB-C Charging is enabled. To change USB-C Prioritization: 1. Shutdown the PC 2. Activate Input Source menu 3. Press and hold key on USB Type-C input for 8 seconds.
When USB-C Charging 90W is set to On During Power Off and USB-C Prioritization is set to High Data Speed, select OSD items of Factory Reset in Other feature, the following message will appear: Dell UltraSharp 43 Monitor Are you sure you want to reset to default settings? Yes No U4320Q When you select ‘Yes‘ to reset to default settings, the following message will appear: Dell UltraSharp 43 Monitor Easy Initial Setup: Select ‘Yes’ to enable the following function(s): • Always on USB -C Charging Yes No
Troubleshooting WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions. Self-Test Your monitor provides a self-test feature that allows you to check whether your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps: 1 Turn off both your computer and the monitor. 2 Unplug the video cable from the back of the computer.
Dell UltraSharp 43 Monitor No USB Type-C Cable The display will go into Power Save Mode in 4 minutes. www.dell.com/support/U4320Q U4320Q 4 This box also appears during normal system operation if the video cable becomes disconnected or damaged. 5 Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor.
Setting USB-C Prioritization when USB-C Charging is set to On During Power Off If USB-C Charging is set to On During Power Off, the monitor allows you to specify the USB-C Prioritization settings only when your PC is powered off. 1 Ensure that your PC is powered off. 2 Press any control button other than the power button to display the shortcut menu of Input Source. 3 Use the or button to highlight USB Type-C.
PIP/PBP Mode If your monitor does not display full screen or the resolution is not of the native resolution of the PIP/PBP mode, it could be due to the graphic card’s behavior. Please follow the steps below. 1 Right Click in desktop and Select Display settings. 2 Select Advanced display settings. 3 Select the recommended resolution per the graphic card, and then click Apply.
Common Problems The following table contains general information about common monitor problems you might encounter and the possible solutions: Common What You Symptoms Experience No Video/Power No picture LED off Possible Solutions • 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.
Common Symptoms What You Experience Intermittent Problems Monitor malfunctions on & off Missing Color Wrong Color Image retention from a static image left on the monitor for a long period of time Possible Solutions • 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 selftest mode.
Problem What you experience No Input Signal when user controls are pressed No picture, the • Check the signal source. Ensure the computer is LED light is white 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.
Appendix Safety Instructions For displays with glossy bezels the user should consider the placement of the display as the bezel may cause disturbing reflections from surrounding light and bright surfaces. 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. For information on safety instructions, see the Safety, Environmental, and Regulatory Information (SERI). FCC Notices (U.S.
Setting Up Your Monitor Setting Display Resolution to 3840 x 2160 (maximum) For best performance, set the display resolution to 3840 x 2160 pixels by performing the following steps: In Windows Vista, Windows 7, Windows 8 or Windows 8.1: 1 For Windows 8 or Windows 8.1 only, select the Desktop tile to switch to classic desktop. For Windows Vista and Windows 7, skip this step. 2 Right-click on the desktop and click Screen Resolution. 3 Click the Dropdown list of the Screen Resolution and select 3840 x 2160.
Non-Dell computer In Windows Vista, Windows 7, Windows 8 or Windows 8.1: 1 For Windows 8 or Windows 8.1 only, select the Desktop tile to switch to classic desktop. For Windows Vista and Windows 7, skip this step. 2 Right-click on the desktop and click Personalization. 3 Click Change Display Settings. 4 Click Advanced Settings. 5 Identify your graphics controller supplier from the description at the top of the window (e.g. NVIDIA, AMD, Intel etc.).
Maintenance Guidelines Cleaning Your Monitor WARNING: Before cleaning the monitor, unplug the monitor power cable from the electrical outlet. CAUTION: Read and follow the Safety Instructions before cleaning the monitor. For best practices, follow these instructions in the list below while unpacking, cleaning, or handling your monitor: • To clean your anti-static screen, lightly dampen a soft, clean cloth with water.
