Dell U4323QE UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual
Dell U4323QE Manual
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- Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 1
Service Manual - U4323QE Version: 01 Date: 2022/07/22 - Dell U4323QE | UltraSharp 43 4K USB-C Hub 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 U4323QE | UltraSharp 43 4K USB-C Hub 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 U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 4
3. Wiring Connectivity Diagram 43 inch LCD panel Interface board LED BD Speaker USB BD - Dell U4323QE | UltraSharp 43 4K USB-C Hub 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. - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 6
4. How to connect and disconnect power cable/ connectivity cable - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 7
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 U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 8
5. Disassembly and Assembly Procedures Release the speakers' cable to from the hooks of the 3 S9 middle frame, then remove the speakers. 2 1 Use a Philips-head screwdriver to remove 4pcs screw for unlocking the USB unit with the middle S7 frame, and then release the USB unit from the hooks of - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 9
5. Disassembly and Assembly Procedures Tear off 4pcs rubbers , then use a Philips-head screwdriver to remove 2pcs screws for unlocking the small bracket with T-Con board, then remove the S13 small bracket, then release the LED key cable by tearing off tapes on the back of the cable. (No.1~2 Screw - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 10
5. Disassembly and Assembly Procedures 5.2 Assembly Procedures: Place a bracket chassis base on a protective S1 cushion, then stick 5pcs Silicon sheets on the position as the picture below shown. Panel preparation: Take out 1pcs panel module from S4 the carton, remove the protective film by - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 11
5. Disassembly and Assembly Procedures Take 1pcs LED board and 1pcs middle frame, and then locate the LED board into the specific position of S7 the middle frame. Paste 1pcs mylar tape to fix the LED board with middle frame, then thread the cable through the hole of the middle frame. Move the - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 12
5. Disassembly and Assembly Procedures Take 1pcs USB board, 1pcs USB connective cable and 1pcs USB bracket. Connect the USB cable to the connector of the USB board, and then locate the USB board into the USB bracket and use a Philips-head screwdriver to tighten 1pcs screw for S14 locking the USB - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 13
5. Disassembly and Assembly Procedures Move the assembled rear cover close to the panel unit, then connect the joystick key cable to the connector of interface board. Put down the S18 rear cover and push the rear cover on the positions marked as the picture below shown for mechanisms engagement. - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 14
6. Trouble Shooting Instructions 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 - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 15
6. Trouble Shooting Instructions 4. This if the screen abnormality you are experiencing is an inherent problem with your monitor, or with your computer and video card Others Display Info DDC/CI HDMI CEC LCD Conditioning Firmware Service Tag Self-Diagnostics Reset Others Factory Reset Select On O - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 16
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 o No Video/ Power LED on Missing Pixels Stuck-on Pixels Brightness Problems Support site - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 17
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 U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 18
6. Trouble Shooting Instructions Product speci c problems Problem Screen image is too small ed 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 joystick - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 19
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 pro les. • Verify if the Notebook requires a >90 W power - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 20
6. Trouble Shooting Instructions Problem What you experience The LAN port is OS plug in the monitor power cord and Type-C cable. Universal Serial Bus (USB) speci c problems Speci c What you Possible solutions symptoms experience USB interface is USB peripherals • Check that your display - Dell U4323QE | UltraSharp 43 4K USB-C Hub Monitor - Simplified Service Manual - Page 21
6. Trouble Shooting Instructions Speci c symptoms Super speed USB 3.2 Gen 2 interface is slow. What you experience Super speed USB 3.2 Gen 2 peripherals working slowly or not working at all Wireless
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Version: 01
Date: 2022/07/22
Service Manual - U4323QE