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Summary of Contents for Dell Pro 32 Plus
- Page 1 Dell Pro 32 Plus QHD USB-C Hub Monitor P3225DE Simplified Service Manual Model: P3225DE Regulatory Model: P3225DEt February 2025 Rev. A00...
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Page 2: Notes, Cautions, And Warnings
A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2025 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners. -
Page 3: Table Of Contents
Contents Safety instructions ..............5 Before working inside your monitor . - Page 4 Contacting Dell ........
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Page 5: Safety Instructions
Safety instructions Use the following safety guidelines to protect your 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. -
Page 6: View Of P3225De Monitor
View of P3225DE monitor Front view Figure 1. Front view of the monitor Table 1. Front view descriptions. Label Description Function Power LED indicator Solid white light indicates the monitor is turned on and functioning normally. Blinking white light indicates the monitor is in Standby Mode. USB-C 5Gbps downstream port Connect your USB device. -
Page 7: Back View
Releases the stand from the monitor. Regulatory label (including Refer to this label if you need to contact Dell for technical support. The Service Tag is Mac address, Barcode, serial a unique alphanumeric identifier that enables Dell service technicians to identify the number, and Service Tag label) hardware components in your computer and access warranty information. -
Page 8: Side View
Side view Figure 3. Side view of the monitor... -
Page 9: Bottom View
Bottom view Figure 4. Bottom view of the monitor Table 3. Bottom view descriptions. Label Description Function Security lock slot Secures the monitor with a security cable lock (sold separately). Connects the power cable. Power connector Connects your computer with the HDMI cable. HDMI port Connects your computer with the DisplayPort cable. -
Page 10: Major Components Of P3225De Monitor
Major components of P3225DE monitor The following image shows the major components of P3225DE. Figure 5. Major components of P3225DE monitor... - Page 11 Middle frame Display panel NOTE: For replacement of power cable, connectivity cable and external 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 at the bottom-right corner of the page.
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Page 12: Wiring Connectivity Diagram
Wiring connectivity diagram Figure 6. Wiring connectivity diagram Table 5. Wiring connectivity diagram. Callout Description Low Voltage Differential Signaling (LVDS) cable 1 LVDS cable 2 Lightbar cable USB cable Keypad cable... -
Page 13: Connecting The Cables
NOTE: Dell monitors are designed to work optimally with Dell-supplied inbox cables. Dell does not guarantee the video quality and performance if non-Dell cables are used. To connect your monitor to the computer: 1. -
Page 14: Connecting The Hdmi Cable (Optional)
Connecting the HDMI cable (optional) Figure 8. Connecting the HDMI cable Connecting the DisplayPort cable DP (in) DP (in) Figure 9. Connecting the DisplayPort cable Connecting the monitor for the DP Multi-Stream Transport (MST) function DP (in) DP (in) DP (out) DP (in) DP (in) Figure 10. Connecting the monitor for the DP Multi-Stream Transport (MST) function... -
Page 15: Connecting The Usb-C To C Cable
Connecting the USB-C to C cable USB-C USB-C Figure 11. Connecting the USB-C to C cable Connecting the monitor for the USB-C Multi-Stream Transport (MST) function DP (in) DP (out) USB-C Figure 12. Connecting the Monitor for the USB-C Multi-Stream Transport (MST) function NOTE: The maximum number of monitors supported by MST depends on the bandwidth of the USB-C source Connecting the USB Type-C to Type-A cable... -
Page 16: Connecting The Monitor For The Rj45 Cable (Optional)
Connecting the monitor for the RJ45 cable (optional) USB-C USB-C Figure 14. Connecting the monitor for the RJ45 cable... -
Page 17: Disassembly And Reassembly
Disassembly and reassembly CAUTION: The information in this section is intended for authorized service technicians in the EMEA region. Dell prohibits users from disassembling the monitor, and any damage caused by unauthorized servicing will not be covered under the warranty. -
Page 18: Stand
Stand Removing the stand Prerequisites 1. Follow the procedure in Before working inside your monitor. Figure 15. Removing the stand Steps 1. Place the monitor on a soft cloth or cushion. 2. Press and hold the stand-release button. 3. Lift the stand assembly away from the monitor. 4. -
Page 19: Back Cover
Steps 1. Align and insert the stand riser into the stand base until it snaps into place. 2. Open the screw handle at the bottom of the stand base and turn it clockwise to secure the stand assembly. 3. Close the screw handle. 4. -
Page 20: Installing The Back Cover
Installing the back cover Figure 18. Installing the back cover Steps 1. Connect the keypad cable to the main board. 2. Align the slots on the back cover with the slots on the main chassis, and then press along the sides to snap the back cover into place. -
Page 21: Keypad Board
Keypad board Removing the keypad board Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Remove the stand. 3. Remove the back cover. Figure 19. Removing the keypad board Steps 1. Carefully peel the double-sided tape that secures the keypad cable to the back cover. 2. -
Page 22: Installing The Keypad Board
Installing the keypad board Figure 20. Installing the keypad board Steps 1. Connect the keypad cable to the keypad board. 2. Align and place the keypad board into its slot on the back cover. 3. Adhere the double-sided tape that secures the keypad cable to the back cover. Next steps 1. -
Page 23: Installing The I/O Cover
Figure 21. Removing the I/O cover Steps 1. Release the I/O cover from the tabs on the main chassis. 2. Lift and remove the I/O cover off the main chassis. Installing the I/O cover Figure 22. Installing the I/O cover Steps 1. Align the I/O cover with the tabs on the main chassis. 2. -
Page 24: Usb Board
USB board Removing the USB board Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Remove the stand. 3. Remove the back cover. 4. Remove the keypad board. 5. Remove the cover. Figure 23. Removing the USB board Steps 1. -
Page 25: Installing The Usb Board
Installing the USB board Figure 24. Installing the USB board Steps 1. Connect the cable to the USB board and close the latch. 2. Assemble the bracket of USB board with the front cover. 3. Replace one screw (M3x6) that secures the USB board and metal to the front cover of USB board. 4. -
Page 26: Main Chassis
Main chassis Removing the main chassis Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Remove the stand. 3. Remove the back cover. 4. Remove the keypad board. 5. Remove the cover. 6. Remove the board. Figure 25. Removing the main chassis Steps 1. -
Page 27: Installing The Main Chassis
Installing the main chassis Figure 26. Installing the main chassis Steps 1. Align the holes on the main chassis with the screw holes on the display panel. 2. Replace four screws (M3x3) to secure the main chassis to the display panel. 3. -
Page 28: Middle Frame
Middle frame Removing the middle frame Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Remove the stand. 3. Remove the back cover. 4. Remove the keypad board. 5. Remove the cover. 6. Remove the board. 7. Remove the main chassis. -
Page 29: Installing The Middle Frame
Installing the middle frame Figure 28. Installing the middle frame Steps 1. Align the screw holes of the middle frame with the holes on the display panel. 2. Replace the 18 screws (M3x5) that secure the middle frame to the display panel. Next steps 1. -
Page 30: Main Board And Power Board
Main board and power board Removing the main board and power board Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Remove the stand. 3. Remove the back cover. 4. Remove the keypad board. 5. Remove the cover. - Page 31 Figure 30. Removing the main board and the power board 4. Remove the main board and power board away from the main chassis. 5. Disconnect the two LVDS cables and connective cable from the connectors on the main board. Figure 31. Disconnecting the cables from the main board...
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Page 32: Installing The Main Board And Power Board
Installing the main board and power board Steps 1. Connect the two LVDS cables and the connective cable to the connectors on the main board. Figure 32. Connecting the cables to the main board 2. Align the screw holes on the main board and power board with the screw holes on the main chassis. 3. - Page 33 4. Place the Mylar sheet to cover the power board. 5. Replace one screw (M3x6) that secures the Mylar sheet and the power board to the main chassis. Figure 34. Installing the Mylar sheet Next steps 1. Install the middle frame. 2.
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Page 34: Troubleshooting
Your monitor includes a built-in diagnostic tool that helps you identify whether the screen abnormality is due to an issue with the monitor itself or with your computer and video card. Dell Pro 32 Plus QHD USB-C Hub Monitor - P3225DE Brightness/Contrast... -
Page 35: Common Problems
Safety-related issues Visible signs of smoke • Do not perform any troubleshooting steps. or sparks • Contact Dell immediately. Intermittent problems Monitor malfunctions • Ensure that the video cable connecting the monitor to the computer is on and off connected properly and is secure. -
Page 36: Product-Specific Problems
If the laptop requires a >90 W power adapter, it may not charge with the USB-C connection. • Ensure that you use only Dell approved adapter or the adapter that comes with the product. • Ensure that the USB-C cable is not damaged. -
Page 37: Contacting Dell
Contacting Dell To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell. NOTE: Availability varies by country and product, and some services may not be available in your country. NOTE: If you do not have an active Internet connection, you can find contact information about your purchase invoice, packing...
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