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Dell P Series Service Manual
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Dell P Series Service Manual

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Service Manual - P2725HE
Version: 01
Date: 2024/03/01

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Summary of Contents for Dell P Series

  • Page 1 Service Manual - P2725HE Version: 01 Date: 2024/03/01...
  • 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 Type-C 3.2 Gen2 cable(1 meter) NOTE: For replacement of power cord, 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.
  • Page 4 3. Wiring Connectivity Diagram Interface Board...
  • 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.
  • Page 6 4. How to connect and disconnect power cable/ connectivity cable...
  • Page 7 This “Disassembly and Assembly Procedures” is for EMEA only, cable and USB FFC cable from the connectors of not for other regions. Please note that Dell will deem warranty void the interface board, and then remove the rear cover. if any disassembly is done on the monitors.
  • Page 8 5. Disassembly and Assembly Procedures Lift up the middle frame away from the panel module and put it aside. Use a Philips-head screwdriver to remove 2pcs screws for unlocking the bracket chassis with the panel. (No.1~2 Screw size= M3x3, Torque=5±1kgfxcm) Use a Philips-head screwdriver to remove 13pcs screws for unlocking the middle frame with the panel.
  • Page 9 5. Disassembly and Assembly Procedures Remove the black Mylar sheet from the hooks of the main bracket as the picture below shown. Use a Philips-head screwdriver to remove 5pcs screws for unlocking the power board and interface board, and then release all the cables from the hooks.
  • Page 10 5. Disassembly and Assembly Procedures 5.2 Assembly Procedures: Take a mylar to insert the hooks of the bracket to Place a bracket chassis base on a protective cover the power board. cushion, then paste 4pcs silicon sheet on the position as the picture below shown. Panel preparation: Take out 1pcs panel from the Turn over a power board and put the power board carton and then examine the panel surface...
  • Page 11 5. Disassembly and Assembly Procedures Use a Philips-head screwdriver to tighten 2pcs Use a Philips-head screwdriver to tighten 13pcs screws for locking the bracket with panel module. screws for locking the middle frame with the panel. (No.1~2 screw size=M3x4, Torque=5 (No.1~13 screw size=M3x4, Torque=5±1kgfxcm) 1kgfxcm) ±...
  • Page 12 5. Disassembly and Assembly Procedures Use a Philips-head screwdriver to tighten 4pcs screws for locking rear cover with the assembled unit. Paste 2pcs labels and insert 1pcs DP cap on the specific positions as the picture below shown. (No.1~4 screw size=M4x10; Torque=10±1kgfxcm) Locate the joystick board to the correct position of the rear cover, then use a Philips-head screwdriver to tighten 1pcs screw for locking the joystick board with...
  • Page 13 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 yo ur monitor and computer are properly connected but the monitor screen remain s dark, run the monitor self-test by performing the following steps: 1.
  • Page 14 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. To run the built-in diagnostics: 1.
  • Page 15 6. Trouble Shooting Instructions Common problems The following table contains general info rmation about common monitor problems you might encounter and the possible solutions: Common What you Possible solutions symptoms experience No video/power No picture • Ensure that the video cable connecting LED o the monitor and the computer is properly connected and secure.
  • Page 16 •Cyc le p owe O r n-O. spots • Pixel that is permanently o is a natural defect that can occur in LCD technology. • For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at: www.dell.com/ pixelguidelines.
  • Page 17 6. Trouble Shooting Instructions Synchronization Screen is • Reset the monitor to factory settings. problems scrambled or • Perform monitor self-test feature appears torn check to determine if the scrambled screen appears in self-test mode. • Check for bent or broken pins in the video cable connector.
  • Page 18 6. Trouble Shooting Instructions Image retention Faint shadow • Set the screen to turn o after a few from a static from the static minutes of screen idle time. These can image left on the image displayed be adjusted in Windows Power Options monitor for a long appears on the or Mac Energy Saver setting.
  • Page 19 6. Trouble Shooting Instructions Product speci c problems Speci c symptoms What you Possible solutions experience Screen image is too Image is centered on • Check the Aspect Ratio setting small screen, but does not in the Display menu OSD. ll the entire viewing •Rese t th e m onito t ro f actor y area...
  • Page 20 6. Trouble Shooting Instructions No video at HDMI/ When connected to Unplug the HDMI/DisplayPort/USB DisplayPort/USB some dongle/ Type-C cable from dongle/docking Type-C port docking device at device, then plug the docking the port, there is no HDMI/DisplayPort/USB Type-C video when cable into the notebook.
  • Page 21 6. Trouble Shooting Instructions When a PS console is A message appears Change the resolution of the PS connected, the to notify you that the console in Safe Mode. For the monitor is not monitor does not information about setting up the compatible with the support the current resolution, go to the o cial website...
  • Page 22 6. Trouble Shooting Instructions Universal Serial Bus (USB) speci c problems Speci c What you Possible solutions symptoms experience USB interface is USB peripherals • Check that your monitor is turned On. not working are not working • Reconnect the upstream cable to your computer.
  • Page 23 6. Trouble Shooting Instructions Wireless USB Wireless USB • Increase the distance between the peripherals stop peripherals USB 3.2 peripherals and the wireless working when a responding slowly USB receiver. USB 3.2 device is or only working as • Position your wireless USB receiver as plugged in the distance close as possible to the wireless USB...

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