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Dell P5525QC Service Manual
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Dell P5525QC Service Manual

Dell P5525QC Service Manual

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DELL P5525QC Monitor
Simplified Service Manual
Version: 01
Date: 2024/08/09

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Summary of Contents for Dell P5525QC

  • Page 1 DELL P5525QC Monitor Simplified Service Manual Version: 01 Date: 2024/08/09...
  • Page 2 1. Important Safety Notice Product Announcement: ! To ensure using a proper screwdriver, follow the This product is certificated to meet RoHS torque and force listed in assembly and Directive and Lead-Free produced definition. disassembly procedures to unscrew screws. Using approved critical components only is ! Using Lead-Free solder to well mounted the recommended when the situation to replace parts.
  • Page 3 USB-C Gen1 1.8M cable (C to C) HDMI 3M cable Refer the below note NOTE: For replacement of power cord, connectivity cable and external power supply (if applicable), contact Dell: To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell NOTE: Availability varies by country or region and product, and some services may not be available in your country/region.
  • Page 4 3. Wiring Connectivity Diagram Figure 2. Wiring Connectivity Diagram...

  • Page 5: Turn On The Monitor

    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. Turn on the monitor External PC connection Connecting the USB cable Figure 3.
  • Page 6 4. How to connect and disconnect power cable/ connectivity cable Connecting the DP cable Figure 5. Connecting the DP cable Connecting the USB Type-C cable Figure 6. Connecting the USB Type-C cable Connecting the monitor for DP Multi-Stream Transport (MST) function Figure 7.
  • Page 7 4. How to connect and disconnect power cable/ connectivity cable Connecting the OptiPlex (optional) Connecting the USB cable Figure 9. Connecting the USB cable Connecting the HDMI cable Figure 10. Connecting the HDMI cable Connecting the DP cable Figure 11. Connecting the DP cable...
  • Page 8 Remove 3 strips of conductive tape. This “Disassembly and Assembly Procedures” is for EMEA only, not for other regions. Please note that Dell will deem warranty void b. Remove 9 strips of white tape. c. Remove 6 cable clips.
  • Page 9 5. Disassembly and Assembly Procedures Remove AC outlet. Remove main board. a. Remove one screw (M3x6) to loose AC outlet. a. Remove 2 screws (M3x6) on the main board. b. Remove one grounding screw (M4x8). b. Remove two Hex socket standoffs (M3x6).
  • Page 10 5. Disassembly and Assembly Procedures Remove the OC module. Loose PCBA of O/C module. Take out the OC module from the middle frame by a. Peel the PCBA away from back bracket. sucking tool. Remove the middle frame. a. Pull up the middle frame by band to loose it from the back bracket.
  • Page 11 5. Disassembly and Assembly Procedures Remove the light bar. a. Peel the tape. b. Disconnect two Light bar cables. c. Peel the two light bar away from the heat sink. Remove the heat sink. a. Remove 14 screws (M3x4) on heat sink. b.
  • Page 12 5. Disassembly and Assembly Procedures 5.2 Assembly Procedures: Prepare light bar: a. Take 2 light bar and double-faced tape. b. Paste double-faced tape on the back of the light bar. Assemble reflector film with the back bracket. a. Put a reflector film into the back bracket. Prepare back bracket.
  • Page 13 5. Disassembly and Assembly Procedures Assemble middle frame. a. Assemble middle frame with bracket. b. Check whether all the clasps snap into place. c. Provide power to light bar for testing. Assemble O/C module with the middle frame. a. Put O/C module into middle frame with sucking tool. b.
  • Page 14 5. Disassembly and Assembly Procedures Assemble PCBA of O/C module. Assemble LED board and IR board with front cover. a. Fix the PCBA of the O/C with masking tape. a. Assemble one LED board to the lower left corner of b.
  • Page 15 5. Disassembly and Assembly Procedures Assemble main board. a. Lock 2 screws (M3x6). b. Lock two Hex socket standoffs (M3x6). b. Assemble two plastic shelf to the main board. Assemble AC outlet. a. Plug wires to the AC outlet. a. Lock one screw (M3x6) to secure the AC outlet. b.
  • Page 16 5. Disassembly and Assembly Procedures Assemble two speakers and Connect all cables. a. Lock 4 screws (M4x10) to secure two speakers. b. Paste 3 rubber plugs on the specific position. c. Connect all the boards with cables. rubber rubber Assemble back cover to the display monitor. a.

  • Page 17: Troubleshooting Instructions

    6. Trouble Shooting Instructions Troubleshooting WARNING: Before you begin any of the procedures in this section, follow the Safety instructions. Self-Test Your display provides a self-test feature that allows you to check whether your display is functioning properly. If your display and computer are properly connected but the display screen remains dark, run the display self-test by performing the following steps: Turn o both your computer and the display.

  • Page 18: Built-In Diagnostics

    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 graphics card. Figure 16. Self-Diagnostic To run the built-in diagnostics: Ensure that the screen is clean (no dust particles on the surface of the screen).
  • Page 19 • Cycle power on-o . • Pixel that is permanently o is a natural defect that can occur in LCD technology. • For more information about Dell Display Quality and Pixel Policy, see Dell Display Pixel Guidelines. • Stuck-on pixels LCD screen has bright Cycle power on-o .
  • Page 20 If the Notebook requires a >90W power adapter, it may not charge with the so on USB Type-C connection. • Ensure that you use only the Dell approved adapter or the adapter that comes with the product. • Ensure that the USB Type-C cable is not damaged.

  • Page 21: Ethernet Problems

    Ethernet problems Speci c symptoms What you experience Possible solutions Ethernet not working Dell Web Management • Ensure that the Network cable connecting the display is properly secured. for Displays Webpage • Press the joystick button for 3 seconds to turn on. A network icon...