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Summary of Contents for Dell E2725HM
- Page 1 Dell Pro 27 Monitor E2725HM Simplified Service Manual Model: E2725HM Regulatory Model: E2725HMc March 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
Major components of E2725HM monitor ........ -
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 in this document assumes that you have read the safety information that shipped with your monitor. NOTE: Before using the monitor, read the safety information that is shipped with your monitor and printed on the product. -
Page 5: Views Of E2725Hm Monitor
Views of E2725HM Monitor Front view Front view Figure 1. Components and descriptions. Table 1. Label Description Function buttons To access the on-screen display (OSD) menu. (For more information, Using the control buttons Power button (with LED indicator) To turn the monitor on or off. -
Page 6: Back View
Releases the stand from the monitor. 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 3 4 5 Bottom view Figure 4. Components and descriptions. Table 4. Label Description Security-lock slot Secure your monitor using a security lock (purchased separately) to (based on Kensington Security Slot) prevent unauthorized movement of your monitor. Power port Connect the power cable. -
Page 8: Major Components Of E2725Hm Monitor
Major components of E2725HM monitor Major components of E2725HM Figure 5. - Page 9 Middle frame Keypad board NOTE: For replacement of power cable, connectivity cable and external power supply (if applicable), contact Dell: Go to https://www.dell.com/en-us. 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 10: Wiring Connectivity Diagram
Wiring connectivity diagram Wiring connectivity diagram Figure 6. Table 6. Wiring connectivity description. Item Description Lightbar cable LVDS cable Keypad cable... -
Page 11: Connecting Your Monitor
Dell monitors are designed to work optimally with the video cables that are shipped with your monitor. Dell cannot guarantee the video performance of cables that are not included with your Dell monitor, as it has no control over suppliers, materials, connectors, and manufacturing processes. -
Page 12: 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 that is caused by unauthorized servicing will not be covered under the warranty. -
Page 13: Stand
Stand Removing the stand Prerequisites 1. Follow the procedure in Before working inside your monitor. Removing the stand Figure 10. Steps Place the monitor on a clean, flat surface on a soft cloth or cushion. Using a long screwdriver, press the release button. While keeping the release button pressed, pull the stand out. -
Page 14: Installing The Stand
Installing the stand Installing the stand Figure 11. Steps Slide the tabs on the stand assembly into the slots on the monitor and press the stand assembly down to snap it into place. Next steps Follow the procedure in After working inside your monitor. -
Page 15: Back Cover
Back cover Removing the back cover Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Removing the back cover Figure 12. Steps Remove the four screws (M4x10) and the two screws (M3x4) that secure the back cover to the chassis assembly. Using the plastic scribe, pry the back cover starting from the bottom edge of the monitor. -
Page 16: Installing The Back Cover
Installing the back cover Installing the back cover Figure 13. Steps 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. Replace the four screws (M4x10) and the two screws (M3x4) to secure the back cover to the monitor. Next steps Install the stand. -
Page 17: 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. Removing the middle frame Figure 14. Steps Remove the thirteen screws (M3x4) on the middle frame. Remove the screw (M3x5) on the underside of the middle frame. Lift and remove the middle frame from the display panel. -
Page 18: Installing The Middle Frame
Installing the middle frame Installing the middle frame Figure 15. Steps Align the screw holes on the middle frame with the holes on the display panel and place it down. Replace the thirteen screws (M3x4) on the middle frame. Replace the screw (M3x5) on the underside of the middle frame. Next steps Install the back... - Page 19 Removing the metal shield Figure 16.
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Page 20: Installing The Metal Shield
Steps Remove the four tapes on the metal shield. Disconnect lightbar cable, LVDS cable and keypad cable on the connector of the panel and main board. Remove the two screws (M3x2.5) and two screws (M3x4) that secure the metal shield to the panel. Remove the two screws (4-40unc) that secure the VGA port to the metal shield. - Page 21 Installing the metal shield Figure 18. Steps Replace the two screws (M3x2.5) and two screws (M3x4) on the metal shield. Replace the two screws (4-40unc) on the VGA port. Connect lightbar cable, LVDS cable and keypad cable to the connectors of the panel and main board. Replace the four tapes on the metal frame.
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Page 22: Keypad Board
Keypad board Removing the keypad board Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Remove the middle frame. Removing the keypad board Figure 19. Steps Remove the three screws (M2x2) on the keypad board on the underside of middle frame. Disconnect keypad board cable from the connector on the keypad board. -
Page 23: Installing The Keypad Board
Installing the keypad board Installing the keypad board Figure 20. Steps Connect keypad board cable to the connector on the keypad board. Replace the three screws (M2x2) to secure the keypad board to the middle frame. Next steps Install the middle frame. -
Page 24: 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 middle frame. Remove the metal shield. Removing the system board and power board Figure 21. - Page 25 Removing the system board and power board Figure 22. Steps Remove the mylar tape on the power board. Remove the screw (M3x7) that secures the system board to the chassis. Remove the two screws (M3x7) and the screw (M4x8) that secures the power board to the chassis. Disconnect the two power cables from the connectors on the system board and the power board.
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Page 26: Installing The System Board And Power Board
Installing the system board and power board Installing the system board and power board Figure 23. - Page 27 Steps Replace the two power cables to the connectors on the system board and the power board. Replace the screw (M3x7) on the power board to the chassis. Replace the two screws (M3x7) and the screw (M4x8) on the system board to the chassis. Adhere the mylar tape the power board.
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Page 28: Troubleshooting
If the monitor is working correctly, it detects that there is no signal and one of the following messages appears. While in self-test mode, the power LED remains white. Dell Pro 27 Monitor - E2725HM No VGA Cable The display will go into Standby mode in 4 minutes. -
Page 29: Onboard Diagnostics
2. Unplug the video cables from the back of the computer or monitor. The monitor then goes into the self-test mode. 3. Press and hold the Exit button (button 4) for four seconds to enter the OSD lock/unlock menu. Dell Pro 27 Monitor - E2725HM Select option: The message of locking the control buttons Figure 28. -
Page 30: Common Problems
Missing pixels Cycle power On-Off. A 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 Dell Support site at: Dell Display Pixel Guidelines. - Page 31 Common Symptoms Possible Solutions Safety-related issues Do not perform any troubleshooting steps. Contact Dell immediately. Intermittent problems Ensure that the video cable connecting the monitor to the computer is connected properly and is secure. Reset the monitor to factory settings (Factory Reset).
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Page 32: Contacting Dell
Contacting Dell To contact Dell for sales, technical support, or customer service issues, see Contact Support at Dell Support Site. 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...
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