Dell U2723QX Monitor Simplified Service Manual
Dell U2723QX Manual
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Dell U2723QX manual content summary:
- Dell U2723QX | Monitor Simplified Service Manual - Page 1
Service Manual - U2723QE/U3023E/U3223QE Version: 01 Date: 2021/11/30 - Dell U2723QX | Monitor Simplified Service Manual - Page 2
the safe, reliable operation of all series products. The service providers recommended by vender should be aware of notices listed in this service manual in order to minimize the risk of personal injury when perform service procedures. Furthermore, the possible existed improper repairing method may - Dell U2723QX | Monitor Simplified Service Manual - Page 3
power supply (if applicable), contact Dell: 1. Go to https://www.dell.com/support. 2. Verify your country or region in the Choose A Country/Region drop-down menu to the country dropdown. 4. Select the appropriate service or support link based on your need. 5. Choose the method of contacting Dell that - Dell U2723QX | Monitor Simplified Service Manual - Page 4
3. Wiring Connectivity Diagram U2723QE&U3223QE Panel 3840*2160 HDR400 Power BD AC In Interface Board HDMI2.0 In HDMI DP1.4 In DP1 Type-C1 USBC1 DP1.4 out DP2 LOUT 1 Line-out Type-C2 USBC2 USB3.0 Down 1 USB1 USB3.0 Down 2 USB2 USB3.0 Down 3 USB3 USB3.0 Down 4 USB4 RJ45 LAN1 KB1 - Dell U2723QX | Monitor Simplified Service Manual - Page 5
4. How to connect and disconnect power cable/ connectivity cable WARNING: To change power cable/ connectivity cable, switch off power before unplugging the cable and replugging in required cable. Connecting the HDMI Cable (optional) Connecting the DP Cable - Dell U2723QX | Monitor Simplified Service Manual - Page 6
4. How to connect and disconnect power cable/ connectivity cable Connecting the monitor for DP Multi-Stream Transport (MST) function Connecting the USB-C Cable (A to C) Connecting the USB-C Cable (C to C) - Dell U2723QX | Monitor Simplified Service Manual - Page 7
4. How to connect and disconnect power cable/ connectivity cable Connecting the Monitor for USB-C Multi-Stream Transport (MST) Function Connecting the Monitor for RJ45 Cable (optional) - Dell U2723QX | Monitor Simplified Service Manual - Page 8
5. Disassembly and Assembly Procedures NOTE: This "Disassembly and Assembly Procedures" is for EMEA only, not for other regions. Please note that Dell will deem warranty void if any disassembly is done on the monitors. Tool Required: List the type and size of the tools that would typically can be - Dell U2723QX | Monitor Simplified Service Manual - Page 9
5. Disassembly and Assembly Procedures Use a Philips-head screwdriver to remove 18(13+5)pcs screws for unlocking the middle bezel S8 with the panel module. (No.1~13 screw size=M3x5, Torque=5±0.5kgfxcm; No.13~18 screw size=M3x4.5, Torque=5±0.5kgfxcm) 5 7 8 11 2 10 1 9 64 13 3 12 15 17 - Dell U2723QX | Monitor Simplified Service Manual - Page 10
5. Disassembly and Assembly Procedures Take away the bracket chassis module and then put S14 the bracket chassis module on a protective cushion. Remove the power board board and interface S17 board from the bracket chassis module carefully, and then disconnect all of the cables. Release the panel - Dell U2723QX | Monitor Simplified Service Manual - Page 11
5. Disassembly and Assembly Procedures 5.1 Assembly Procedures: Place a bracket chassis base on a protective S1 cushion, then stick 4pcs Silicon sheets on the positions as the picture below shown. Take a black mylar to insert the hooks of the bracket to cover the power board, then tear off the gum - Dell U2723QX | Monitor Simplified Service Manual - Page 12
5. Disassembly and Assembly Procedures Move the middle bezel with the LED board close to S9 the panel unit, then assemble the middle bezel with the front bezel and panel module. Adjust the bracket chassis module, and then use a Philips-head screwdriver to tighten 4pcs screws for S7 locking the - Dell U2723QX | Monitor Simplified Service Manual - Page 13
5. Disassembly and Assembly Procedures Take 1pcs USB board, 2pcs cables and 1pcs conductive foam. Connect the 2pcs cables to the connectors of the Usb board, then turn over the board and paste the conductive foam on the back of the USB board, and then locate the USB board into S13 the correct - Dell U2723QX | Monitor Simplified Service Manual - Page 14
5. Disassembly and Assembly Procedures Use a Philips-head screwdriver to tighten 4pcs screws for locking the rear cover with the unit. Stick S17 two pieces of label on the specific positions, then insert 2pcs DP out Caps into the DP out connectors. (No.1~4 screw size=M4x11; Torque=11±1kgfxcm) 2 3 - Dell U2723QX | Monitor Simplified Service Manual - Page 15
6. Trouble Shooting 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 - Dell U2723QX | Monitor Simplified Service Manual - Page 16
6. Trouble Shooting Instructions 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. UltraSharp 30/27/32 Monitor Brightness/Contrast - Dell U2723QX | Monitor Simplified Service Manual - Page 17
Trouble Shooting Instructions Common problems The following table contains general information about common monitor problems you might encounter and the possible solutions: Common symptoms No Video/ Power LED off No Video/ Power LED on Missing Pixels Stuck-on Pixels Brightness Problems Support - Dell U2723QX | Monitor Simplified Service Manual - Page 18
6. Trouble Shooting Instructions Common symptoms What you experience Possible solutions Intermittent Problems Monitor • Ensure that . • Perform monitor self-test feature check to determine if the intermittent problem occurs in self-test mode. Missing Color Picture missing color • Perform - Dell U2723QX | Monitor Simplified Service Manual - Page 19
6. Trouble Shooting Instructions Product specific problems Problem Screen image is too small certified to. Download and install the latest graphics card driver. • Some DP 1.1a graphics card cannot support DP 1.4 monitors. Go to OSD menu, under Input Source selection, press and hold DP select - Dell U2723QX | Monitor Simplified Service Manual - Page 20
6. Trouble Shooting Instructions Problem No image when using USB-C connection to computer, Set Windows to Projection mode. • Ensure that the USB-C cable is not damaged. • 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 - Dell U2723QX | Monitor Simplified Service Manual - Page 21
6. Trouble Shooting Instructions Problem What you experience Possible solutions The LAN port is speed reduce 1600 @ 60Hz cannot set at to 2.0) in Daisy chain 2560 x 1600 • Switch PC that supported DP1.4 mode in DP1.2 @ 60Hz when (DSC Disable) set MST On and USB-C Prioritization (High Data - Dell U2723QX | Monitor Simplified Service Manual - Page 22
6. Trouble Shooting Instructions Problem What you experience Possible solutions U3023E connected as 3rd monitors displayed image at lower resolution in DP1.4 (DSC Enable) Three U3023E • Press "Windows" + "P" key, select " - Dell U2723QX | Monitor Simplified Service Manual - Page 23
6. Trouble Shooting Instructions Problem What you experience Possible solutions OSD lagging 2 or 3 monitors • Set Multi-Monitor Sync (MMS) turn off when navigating connected in • Or Slow the OSD navigating - Dell U2723QX | Monitor Simplified Service Manual - Page 24
6. Trouble Shooting Instructions Problem What you experience Possible solutions U3023E connected as 2nd monitor cannot set to 2560 x 1600 @ 60Hz in Daisy chain mode in DP1.4 (DSC Disable) Two - Dell U2723QX | Monitor Simplified Service Manual - Page 25
6. Trouble Shooting Instructions Problem What you experience Possible solutions 3 Soundbar unit not working when connected to 3 U3023E monitor 3 soundbars • USB Topology limitation to 2. unit connected • Connect 2 soundbar unit individually - Dell U2723QX | Monitor Simplified Service Manual - Page 26
6. Trouble Shooting Instructions Universal Serial Bus (USB) specific problems Specific symptoms What you experience Possible solutions USB interface is USB peripherals • Check that your display is turned ON. not working are not working • Reconnect
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Version: 01
Date: 2021/11/30
Service Manual - U2723QE/U3023E/U3223QE