Dell 32 Plus Simplified Service Manual

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Dell 32 Plus 4K Monitor

S3225QS

Simplified Service Manual

Model: S3225QS

Regulatory Model: S3225QSc

March 2025

Rev. A00

Table of Contents

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Summary of Contents for Dell 32 Plus

Page 1 Dell 32 Plus 4K Monitor S3225QS Simplified Service Manual Model: S3225QS Regulatory Model: S3225QSc March 2025 Rev. A00...
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
Contacting Dell ........
Page 4: 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 is shipped with your monitor.
Page 5: Views Of S3225Qs Monitor
Views of S3225QS monitor Front view Figure 1. Front view of the monitor Table 1. Front view descriptions. Description Power LED indicator Solid white light indicates that the monitor is turned on and functioning normally. Blinking white light indicates that the monitor is in Standby Mode. Views of S3225QS monitor...
Page 6: Back View
Lists the regulatory approvals. Regulatory label (including MyDell QR See this label if you need to contact Dell for technical support. The code, serial number, and Service Tag label) Service Tag is a unique alphanumeric identifier that enables Dell service technicians to identify the hardware components in your monitor and access warranty information.
Page 7: Bottom View
Bottom view Figure 4. Bottom view of the monitor Table 3. Bottom view descriptions. Description Connect your computer with the HDMI cable shipped with your monitor. HDMI 2 port Connect your computer with the HDMI cable shipped with your monitor. HDMI 1 port Connect your computer with the DisplayPort cable (purchased DisplayPort separately).
Page 8: Major Components Of S3225Qs
Major components of S3225QS Figure 5. Major components of S3225QS Major components of S3225QS...
Page 9 Middle frame Display panel Front trim Note For replacement of power cable, connectivity cable and external power supply (if applicable), contact Dell: 1. Go to Dell Support Site. 2. Verify your country or region in the Choose A Country/Region drop-down menu at the bottom-right corner of the page.
Page 10: Wiring Connectivity Diagram
Wiring connectivity diagram Figure 6. Wiring connectivity diagram Figure 7. Wiring connectivity diagram Wiring connectivity diagram...
Page 11 Table 5. Wiring connectivity diagram. Description Lightbar cable Speaker cable Keypad board cable Wiring connectivity diagram...
Page 12: Connecting The Cables
Safety instructions. NOTE: Dell monitors are designed to work optimally with the Dell-supplied cables inside the box. Dell does not guarantee the video quality and performance if non-Dell cables are used. NOTE: Route the cables through the cable management guide before connecting them.
Page 13: Routing The Cable To Side I/O (Optional)
Routing the cable to side I/O (optional) Figure 11. Routing the cable to side I/O To route the cable to the side I/O: 1. Insert the HDMI cable into the side I/O connector. 2. Insert and organize the cables under the restraint lever as shown above. Organizing your cables Route the cables through the cable management guide on the stand riser.
Page 14: 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 15: Stand
Stand Removing the stand Prerequisites Follow the procedure in Before working inside your monitor. About this task The following image indicates the location of the stand and provides a visual representation of the removal procedure. Figure 13. Removing the stand Steps Place the monitor on a clean, flat surface on a soft cloth or cushion.
Page 16: Back Cover
Figure 14. Installing the stand Steps Align and insert the stand riser into the stand base until it snaps into place. Open the screw handle at the bottom of the stand base and turn it clockwise to secure the stand assembly. Close the screw handle.
Page 17 M4x10 Figure 15. Removing the screws and prying the back cover Disassembly and reassembly...
Page 18: Installing The Back Cover
Figure 16. Disconnecting the keypad board cable Steps Remove the four screws (M4x10) that secure the back cover to the monitor. Using a plastic scribe, pry the back cover starting from the bottom edge of the monitor. Lift the back cover partially from the bottom edge and disconnect the keypad board cable from the connector on the system board.
Page 19 Figure 17. Connecting the keypad board cable Disassembly and reassembly...
Page 20 M4x10 Figure 18. Replacing the screws Steps Connect the keypad board cable to the connector on the system board. Align the screw holes on the back cover with the screw holes on the monitor, and gently press along the sides to snap the back cover into place.
Page 21: Speaker
Speaker Removing the speaker Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. About this task The following image indicates the location of the speaker and provides a visual representation of the removal procedure. M3x6 Figure 19. Removing the screws...
Page 22: Installing The Speaker
Figure 20. Disconnecting the speaker cable Steps Peel back the tape that secures the speaker cable to the display panel. Remove the six screws (M3x6) that secure the speakers to the middle frame. Disconnect the speaker cable from the connector on the system board. Lift the speakers away from the chassis.
Page 23 M3x6 Figure 22. Replacing the screws Steps Align and place the speakers in the slots on the chassis. Connect the speaker cable to the connector on the system board. Replace the six screws (M3x6) to secure the speakers to the middle frame. Adhere the tape to secure the speaker cable to the display panel.
Page 24: Metal Shield
Metal shield Removing the metal shield Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Remove the speaker. About this task The following image indicates the location of the metal shield and provides a visual representation of the removal procedure. Figure 23. Disconnecting the lightbar cables Disassembly and reassembly...
Page 25 M3x4 Figure 24. Removing the screws Figure 25. Disconnecting the display cable Disassembly and reassembly...
Page 26: Installing The Metal Shield
Steps Peel back the tapes that secure the lightbar cables and metal shield to the display panel. Disconnect the lightbar cables from the connectors on the display panel. Remove the three screws (M3x4) that secure the metal shield to the display panel. Lift the metal shield partially and disconnect the display cable from the connector on the display panel.
Page 27 M3x4 Figure 27. Replacing the screws Disassembly and reassembly...
Page 28 Figure 28. Connecting the lightbar cables Steps Lift the metal shield partially and connect the display cable to the connector on the display panel. Align the screw holes on the metal shield to the screw holes on the display panel. Replace the three screws (M3x4) to secure the metal shield to the display panel. Connect the lightbar cables to the connectors on the display panel.
Page 29: System Board And Power Board
System board and power board Removing the system board and power board Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Remove the speaker. Remove the metal shield. About this task The following image indicates the location of the system board and power board, and provides a visual representation of the removal procedure.
Page 30 Figure 30. Removing the metal shield I/O-cover D3x6 M4x6 Figure 31. Removing the screws Disassembly and reassembly...
Page 31: Disconnecting The Cables
Figure 32. Disconnecting the cables Steps Remove the Mylar sheet from the power board. Remove the metal shield I/O-cover from the metal shield. Remove the twelve screws (D3x6) and the screw (M4x6) that secures the system board, power board, and converter board to the metal shield.
Page 32 Figure 33. Connecting the cables Disassembly and reassembly...
Page 33 D3x6 M4x6 Figure 34. Replacing the screws Figure 35. Replacing the metal shield I/O-cover Disassembly and reassembly...
Page 34 Figure 36. Placing the Mylar sheet Steps Connect the cables to the connectors on the system board, power board, and converter board. Replace the twelve screws (D3x6) and the screw (M4x6) to secure the system board, power board, and converter board to the metal shield.
Page 35: Middle Frame
Middle frame Removing the middle frame Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Remove the speaker. Remove the metal shield. About this task The following image indicates the location of the middle frame and provides a visual representation of the removal procedure. M3x4 M2x2.0 Figure...
Page 36: Installing The Middle Frame
Steps Remove the sixteen screws (M3x4) that secure the middle frame to the display panel. Lift and remove the middle frame away from the display panel. Remove the six screws (M2x2.0) that secure the front trim to the display panel. Remove the front trim away from the display panel.
Page 37: Keypad Board
Next steps Install the metal shield. Install the speaker. Install the back cover. Install the stand. Follow the procedure in After working inside your monitor. Keypad board Removing the keypad board Prerequisites Follow the procedure in Before working inside your monitor.
Page 38: Installing The Keypad Board
Figure 40. Disconnecting the keypad board cable Steps Remove the three screws (Q2X2.5) that secure the keypad board to the back cover. Disconnect the keypad board cable from the connector on the keypad board. Installing the keypad board Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About the task The following image indicates the location of the keypad board and provides a visual representation of the installation procedure.
Page 39 Q2x2.5 Figure 42. Replacing the screws Steps Connect the keypad board cable to the connector on the keypad board. Replace the three screws (Q2x2.5) to secure the keypad board to the back cover. Next steps Install the back cover. Install the stand. Follow the procedure in After working inside your monitor.
Page 40: Troubleshooting
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.
Page 41: 46. Built-In Diagnostics
Built-in diagnostics Your monitor includes a built-in diagnostic tool to help you identify whether the screen abnormality is due to an issue with the monitor itself or with your computer and video card. To run the built-in diagnostics: 1. Ensure that the screen is clean (no dust particles on the surface of the screen). 2.
Page 42: Common Problems
Cycle power On-Off. Pixel that is permanently off is a natural defect that can occur in LCD • technology. For more information about Dell Monitor Quality and Pixel Policy, see • www.dell.com/pixelguidelines. Stuck-on pixels LCD screen has bright spots •...
Page 43 Common symptoms What you experience Possible solutions Intermittent problems Monitor malfunctions on Ensure that the video cable connecting the monitor to the computer • and off is connected properly and is secure. Reset the monitor to factory settings (Factory Reset). •...
Page 44: Regulatory Information
Regulatory information FCC notices (U.S. Only) and other regulatory information For FCC notices and other regulatory information, see the regulatory compliance website at www.dell.com/regulatory_compliance. EU product database for energy label and product information sheet S3225QS: https://eprel.ec.europa.eu/qr/2200407 Regulatory information...
Page 45: 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, region, or 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 slip, bill, or Dell product catalog.

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