Dell U3223QZ Monitor Simplified Service Manual
Dell U3223QZ Manual
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Dell U3223QZ manual content summary:
- Dell U3223QZ | Monitor Simplified Service Manual - Page 1
Service Manual - U3223QZ Version: 01 Date: 2022/2/28 - Dell U3223QZ | 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 U3223QZ | Monitor Simplified Service Manual - Page 3
: 1. Go to https://www.dell.com/support. 2. Verify your country or region in the Choose A Country/Region drop-down menu at the bottom-right corner of the page. 3. Click Contact Us next to the country dropdown. 4. Select the appropriate service or support link based on your need. 5. Choose the method - Dell U3223QZ | Monitor Simplified Service Manual - Page 4
3. Wiring Connectivity Diagram - Dell U3223QZ | 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 U3223QZ | 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 Type-C cable (C to C) (Optional) - Dell U3223QZ | 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 U3223QZ | Monitor Simplified Service Manual - Page 8
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 used to disassemble the - Dell U3223QZ | Monitor Simplified Service Manual - Page 9
5. Disassembly and Assembly Procedures Tear off tapes of camera FFC cable, then disconnect 1 the cable from the connectors and remove it. Tear off S8 2pcs acetate tape, then disconnect the Mic wire from the connector of the board. Use a Philips-head screwdriver to remove 8pcs screws for unlocking - Dell U3223QZ | Monitor Simplified Service Manual - Page 10
5. Disassembly and Assembly Procedures S11 Tear off the tape on the back of the LED cable, then disconnect the panel lamp cable and touch FFC cable from the connectors, and then remove the conductive foam from the middle frame. conductive foam Lift up and take away the middle bezel, and then S12 - Dell U3223QZ | Monitor Simplified Service Manual - Page 11
5. Disassembly and Assembly Procedures Release the EDP cable from the hook of the bracket, S17 then remove the Mylar tape from the bracket. Use a Philips-head screwdriver to remove 8pcs screws for interface board and power board. Release S18 the panel lamp cable from the hook of the bracket. (No.1 - Dell U3223QZ | Monitor Simplified Service Manual - Page 12
5. Disassembly and Assembly Procedures 5.2 Assembly Procedures: Place a bracket chassis base on a protective S1 cushion, then stick 9pcs 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 U3223QZ | Monitor Simplified Service Manual - Page 13
5. Disassembly and Assembly Procedures Take 1pcs front bezel, 1pcs touch board, 1pcs LED board and some essential wires. Locate the LED board into the hooks of the front bezel, then paste 1pcs black S7 mylar to cover the LED board. Connect 1pcs FFC cable to the connector of the touch board, then - Dell U3223QZ | Monitor Simplified Service Manual - Page 14
5. Disassembly and Assembly Procedures Move the middle frame with front bezel close to the S10 panel unit, then assemble the middle frame with the panel module. Adjust the bracket chassis module, and then use a Philips-head screwdriver to tighten 4pcs screws for S13 locking the bracket with the - Dell U3223QZ | Monitor Simplified Service Manual - Page 15
5. Disassembly and Assembly Procedures Take two speakers to locate into the probers of the middle frame, then connect the two speakers wires and fix the wire on the frame with 1pcs acetate tape. Connect the speaker wire to the connector of board. S16 Use a Philips-head screwdriver to tighten 8pcs - Dell U3223QZ | Monitor Simplified Service Manual - Page 16
to check the gap between the front bezel and the panel, then provide power supply and a video signal to the monitor, then turn on the monitor for functionality check. Move the assembled rear cover close to the panel unit, then connect the joystick key cable to the S20 connector of interface - Dell U3223QZ | Monitor Simplified Service Manual - Page 17
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 properly connected but the monitor screen remains dark, run the monitor self-test by performing the following - Dell U3223QZ | Monitor Simplified Service Manual - Page 18
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 32 Monitor Brightness/Contrast Input - Dell U3223QZ | Monitor Simplified Service Manual - Page 19
6. 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 What - Dell U3223QZ | Monitor Simplified Service Manual - Page 20
Trouble Shooting Instructions Common Symptoms What you experience Possible solutions Safety Related Visible signs of • Do not perform any troubleshooting steps. Issues smoke or sparks • Contact Dell immediately. Intermittent Problems Monitor Windows Power Options or Mac Energy Saver on the - Dell U3223QZ | Monitor Simplified Service Manual - Page 21
Trouble Shooting Instructions Product specific problems Problem What you experience Possible solutions Screen image is Image is • Check the Aspect Ratio setting in the Display too small centered on menu OSD. screen, but does • Reset the monitor card cannot support DP 1.2/1.4 monitors. Go to - Dell U3223QZ | Monitor Simplified Service Manual - Page 22
Trouble Shooting Instructions Problem the USB Type-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 of device is over 90 W. • Ensure that you use only Dell approved adapter or the adapter that comes with the product. • Ensure - Dell U3223QZ | Monitor Simplified Service Manual - Page 23
Trouble Shooting Instructions Problem • Ensure that the Ethernet cable is connected securely on the monitor and the hub/router/ firewall. • Check the status LED Chrome OS / Ubuntu Video recording Video recording • Windows 7 not support not working App not working • Switch to Windows 10 with Win - Dell U3223QZ | Monitor Simplified Service Manual - Page 24
6. Trouble Shooting Instructions Problem What you experience Possible solutions When press When the device as Echo Cancelling Speakerphone speakers when U3223QZ or DELL U3223QZ on your system. play audio/video • Turn Off the monitor, unplug the monitor power on your system cord, replug it, - Dell U3223QZ | Monitor Simplified Service Manual - Page 25
6. Trouble Shooting Instructions Problem Webcam is not detected What you experience Possible solutions Webcam is not • Ensure that the USB upstream cable is detected in the connected between the monitor and the Windows Device computer or notebook. Manager • Ensure that the USB is assign to - Dell U3223QZ | Monitor Simplified Service Manual - Page 26
6. Trouble Shooting Instructions Problem Microphone volume is low / sounds soft What you experience Possible . • Alternatively, you may use Dell Peripheral Manager to adjust the webcam setting of color. • Adjust the environment lighting condition. Ensure the monitor is setup at a well lighted - Dell U3223QZ | Monitor Simplified Service Manual - Page 27
6. Trouble Shooting Instructions Problem What you experience Possible solutions Teams 1080P) is selected, there will not be any difference between the images. The image quality of the monitor was poor Always poor: • Check that your computer is USB 3.0-capable. • Some computers have USB - Dell U3223QZ | Monitor Simplified Service Manual - Page 28
6. Trouble Shooting Instructions Microsoft® Teams® / Skype for Business® specific problems Problem The Teams button is 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 and - Dell U3223QZ | Monitor Simplified Service Manual - Page 29
6. Trouble Shooting Instructions Universal Serial Bus (USB) specific problems Specific Symptoms What you experience Possible solutions USB interface is USB peripherals not working are not working • Check that your display is turned ON. • Reconnect
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Version: 01
Date: 2022/2/28
Service Manual - U3223QZ