Dell E2425HS (DELL-E2425HS) 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 any loose or misplaced screws inside your monitor may severely damage it. Steps 1. Replace all screws and ensure that no stray screws remain…

4. Views of E2425HS monitorp. 5

   Views of E2425HS monitor

5. Side viewp. 5

   Figure 1. Side view of the monitor 2

6. Front viewp. 6

   Figure 2. Front view of the monitor 1. Display panel Provides visual output to the user.

7. Bottom viewp. 7

   Figure 3. Bottom view of the monitor 1. Power port To connect the monitor power cable. 2. DisplayPort 1.2 port Connect to your computer with the DisplayPort…

8. Major components of E2425HS monitorp. 8

   Figure 4. Major components Table 1 Components Item Description Item Description 1 Stand riser 7 Interface board 2 Stand base 8 Power board 3 VESA cover 9…

9. Wiring connectivity diagramp. 9

   Wiring connectivity diagram Figure 5. Wiring connectivity diagram Table 2 Cables Item Description 1 Lightbar cable 2 Keypad cable 3 LVDS cable 4 Speaker cable 4

10. Connecting the cablesp. 10

    WARNING: Before you begin any of the following procedures, follow the Safety Instructions. WARNING: Ensure that the grounded power outlet for the power cable…

11. Connecting VGA cablep. 10

    Figure 6. Connecting VGA cable 5

12. Connecting DP cablep. 11

    Figure 7. Connecting DP cable

13. Connecting HDMI cablep. 11

    Figure 8. Connecting HDMI cable

14. Disassembly and reassemblyp. 12

    NOTE: The images in this document may differ from your computer depending on the configuration you ordered

15. Recommended toolsp. 12

     Phillips screwdriver #2  Nut driver 5 mm  Plastic scribe

16. Screw listp. 12

    NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box. This…

17. Standp. 13

    Removing the stand Prerequisites Follow the procedure in Before working inside your monitor. Steps 1. Loosen the thumbscrew anti-clockwise. 2. Pull the stand…

18. VESA coverp. 15

    Removing the VESA cover Prerequisites 1. Follow the procedure in Before working inside your monitor. Steps 1. Press the rift on the VESA cover to release it…

19. Back coverp. 16

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

20. Speakersp. 20

    Removing the speakers Prerequisites 4. Follow the procedure in Before working inside your monitor. 5. Remove the stand. 6. Remove the VESA cover. 7. Remove the…

21. Chassis assemblyp. 22

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

22. Keypad boardp. 27

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

23. Interface boardp. 29

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

24. Power boardp. 35

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

25. Troubleshooting Instructionsp. 37

    Troubleshooting Instructions WARNING: Before you begin any of the procedures in this section, follow the Safety Instructions

26. Self-testp. 37

    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…

27. Built-in diagnosticsp. 39

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

28. Common problemsp. 40

    The following table provides general information about common monitor problems that you might encounter and the possible solutions: Table 4. Common problems…

29. Product-specific problemsp. 41

    Table 5. Product-specific problems and solutions. Specific symptoms Possible solutions Screen image is too small • Check the Aspect Ratio setting in the…

30. Contacting Dellp. 42

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