Dell E2725H (DELL-E2725H) service manual

Contents

1. Safety Instructionsp. 4

   Use the following safety guidelines to protect your monitor from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure…

2. Before working inside your monitorp. 4

   Steps 1. Save and close all open files and exit all open applications. 2. Turn off your monitor. 3. Disconnect your monitor and all attached devices from their…

3. After working inside your monitorp. 4

   CAUTION: Leaving stray or loose screws inside your monitor may severely damage your monitor.Protecting Against Electrostatic Discharge Steps 1. Replace all…

4. Views of E2725H Monitorp. 5

   Front view Figure 1. Front view of the monitor Table 1. Components and descriptions. Label Description Use 1 Function buttons To access the on-screen display…

5. Front viewp. 5

   Figure 1. Front view of the monitor Table 1. Components and descriptions. Label Description Use 1 Function buttons To access the on-screen display (OSD) menu.…

6. Side view and back viewp. 5

   Figure 2. Side view and back view of the monitor

7. Bottom viewp. 6

   Figure 3. Bottom view of the monitor (E2725H) Table 3. Components and descriptions. Label Description Use 1 Security-lock slot (based on Kensington Security…

8. Major components of E2725H monitorp. 7
9. Wiring connectivity diagramp. 9

   Item Description 1 Lightbar Cable 2 LVDS Cable 3 Keypad Cable 1 2 3

10. Connecting the cablesp. 10

    WARNING: Before you begin any of the procedures in this section, follow the Safety instructions. NOTE: Dell monitors are designed to work optimally with the…

11. Disassembly and reassemblyp. 11

    NOTE: This “Disassembly and Assembly Procedures” is for EMEA only, not for other regions. Please note that Dell will deem warranty void if any disassembly is…

12. Recommended toolsp. 11

    List the type and size of the tools that would typically can be used to disassemble the product to a point where components and materials requiring selective…

13. Standp. 11

    Removing the stand Prerequisites 1. Follow the procedure in Before working inside your monitor. Steps 1. Place the monitor on a soft cloth or cushion at the…

14. VESA coverp. 12

    Removing the VESA cover Prerequisites 1. Follow the procedure in Before working inside your monitor. 2.Removing the stand. Steps 1. Press the dimple on the…

15. Back coverp. 14

    Removing the back cover Prerequisites 1. Follow the procedure in Before working inside your monitor. 2.Removing the stand. 3.Removing the VESA cover. Steps 1.…

16. Keypad boardp. 15

    Removing the keypad board Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Removing the stand. 3. Removing the VESA cover. 4.…

17. Metal framep. 18

    Removing the metal frame Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Removing the stand. 3. Removing the VESA cover. 4.…

18. Main board and power boardp. 21

    Removing the main board and power board Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Removing the stand. 3. Removing the…

19. Troubleshootingp. 26
20. Self-Testp. 26

    Your monitor provides a self-test feature that allows you to check if your monitor is functioning properly. If your monitor and computer are properly connected…

21. Onboard diagnosticsp. 27

    Your monitor has a onboard diagnostic tool that helps you determine if any screen abnormality you experience is an inherent problem with your monitor, or with…

22. Common problemsp. 28

    The following table contains general information about common monitor problems that you might encounter and the possible solutions: Table 1. Common problems…

23. Product-specific problemsp. 29

    Table 2. Product-specific problems Specific Symptoms Possible Solutions The screen image is too small Check the Aspect Ratio setting in the Display settings…

24. Contacting Dellp. 30

    To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell. NOTE: Availability varies by country, region, or…