Dell Pro E2225HSM Service Manual
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Dell Pro E2225HSM Service Manual

Dell Pro E2225HSM Service Manual

Adjustable stand monitor
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Dell Pro 22 Adjustable Stand Monitor
E2225HSM
Dell Pro 24 Adjustable Stand Monitor
E2425HSM
Service Manual
Model: E2225HSM / E2425HSM
Regulatory Model: E2225HSMf / E2425HSMf
March 2025
Rev. A00
Regulatory information
1

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Summary of Contents for Dell Pro E2225HSM

  • Page 1 Dell Pro 22 Adjustable Stand Monitor E2225HSM Dell Pro 24 Adjustable Stand Monitor E2425HSM Service Manual Model: E2225HSM / E2425HSM Regulatory Model: E2225HSMf / E2425HSMf March 2025 Regulatory information Rev. A00...

  • Page 2: Notes, Cautions, And Warnings

    A WARNING indicates a potential for property damage, personal injury, or death. © 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

    Contents Chapter 1: Safety Instructions ............................5 Before working inside your monitor ..........................6 After working inside your monitor ..........................6 Chapter 2: Views of E2225HSM/E2425HSM monitor ....................7 Side view ..................................... 7 Front view ................................... 8 Bottom view ..................................9 Chapter 3: Major components of your monitor ......................
  • Page 4 Power board ..................................59 Removing the power board ............................. 59 Installing the power board ............................60 Chapter 8: Troubleshooting Instructions ........................61 Self-test ..................................... 61 Built-in diagnostics................................63 Common problems ................................. 64 Product-specific problems ............................65 Chapter 9: Contacting Dell ............................66 Contents...

  • Page 5: Chapter 1: 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.

  • Page 6: Before Working Inside Your Monitor

    Before working inside your monitor Steps Save and close all open files and exit all open applications. Turn off your monitor. Disconnect your monitor and all attached devices from their electrical outlets. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and dock from your monitor. CAUTION: To disconnect a network cable, first unplug the cable from your monitor and then unplug the cable from the network device.

  • Page 7: Chapter 2: Views Of E2225Hsm/E2425Hsm Monitor

    Views of E2225HSM/E2425HSM monitor Side view Figure 1. Side view of the monitor Views of E2225HSM/E2425HSM monitor...

  • Page 8: Front View

    Front view Figure 2. Front view of the monitor Display panel Provides visual output to the user. Views of E2225HSM/E2425HSM monitor...

  • Page 9: Bottom View

    Bottom view Figure 3. Bottom view of the monitor Power port Connect the power cable (shipped with your monitor). DisplayPort 1.2 port Connect your computer with the DisplayPort cable. HDMI port Connect your computer with the HDMI cable. VGA port Connect your computer with the VGA cable.

  • Page 10: Chapter 3: Major Components Of Your Monitor

    Major components of your monitor E2225HSM Figure 4. Major components Table 1. Components. Item Description Item Description Stand riser Interface board Power board Stand base Back cover Display panel Speakers Display middle-frame Chassis Keypad board Major components of your monitor...

  • Page 11: E2425Hsm

    E2425HSM Figure 5. Major components Table 2. Components. Item Description Item Description Stand riser Interface board Power board Stand base Back cover Display panel Speakers Display middle-frame Chassis Keypad board Major components of your monitor...

  • Page 12: Chapter 4: Wiring Connectivity Diagram

    Wiring connectivity diagram Figure 6. Wiring connectivity diagram Table 3. Cables. Item Description Lightbar cable LVDS cable Keypad cable Speaker cable Wiring connectivity diagram...

  • Page 13: Chapter 5: Connecting The Cables

    NOTE: Dell monitors are designed to work optimally with Dell-supplied inbox cables. Dell does not guarantee the video quality and performance if non-Dell cables are used. To connect your monitor to the computer: Turn off your computer and disconnect the power cable.

  • Page 14: Connecting Dp Cable

    Connecting DP cable Figure 8. Connecting DP cable Connecting HDMI cable Figure 9. Connecting HDMI cable Connecting the cables...

  • Page 15: Chapter 6: Disassembly And Reassembly- E2225Hsm

    Disassembly and reassembly- E2225HSM NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Recommended tools Phillips screwdriver #2  Nut driver 5 mm  Plastic scribe  Screw list 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.

  • Page 16: Stand

    Stand Removing the stand Prerequisites Follow the procedure in Before working inside your monitor. Steps Press the release button and tilt the stand upwards till the stand is separated from the monitor head. Open the screw handle at the bottom of the stand base, then turn the screw anti-clockwise to unscrew it. Remove the stand riser from the stand base.

  • Page 17: Installing The Stand

    Installing the stand Steps Align and place the stand riser on the stand base. Open the screw handle at the bottom of the stand, then turn the screw clockwise to secure the stand riser to the stand base. Close the screw handle at the bottom of the stand. Attach the stand to the monitor.

  • Page 18: Back Cover

    Back cover Removing the back cover Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Steps Remove the two screws (M4x10) that secure the back cover to the chassis assembly. Only two screws must be removed to take off the back cover. NOTE: Using the plastic scribe, pry the back cover starting from the bottom edge of the monitor.
  • Page 19 Figure 13. Removing the back cover Disassembly and reassembly- E2225HSM...

  • Page 20: Installing The Back Cover

    Installing the back cover Steps Hold the back cover above the chassis assembly. Connect the speaker cable to the connector on the interface board. Adhere the tape that secures the speaker cable to the display panel. Place and snap the back cover into place on the chassis assembly.
  • Page 21 Figure 15. Installing the back cover Next steps Install the stand. Follow the procedure in After working inside your monitor. Disassembly and reassembly- E2225HSM...

  • Page 22: Speakers

    Speakers Removing the speakers Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Steps Release the speaker cable from the cable management slots on the back cover. Remove the speakers from the back cover. Figure 16.

  • Page 23: Installing The Speakers

    Installing the speakers Steps Attach the speakers onto the back cover. Secure the speaker cable to the cable management slots on the back cover. Figure 17. Installing the speakers Next steps Install the back cover. Install the stand. Follow the procedure in After working inside your monitor.

  • Page 24: Chassis Assembly

    Chassis assembly Removing the chassis assembly Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Remove the speakers. Steps Remove the two screws (M3x3) that secure the chassis assembly to the display panel. Peel the tape at the bottom left corner of the monitor.
  • Page 25 Figure 19. Removing the chassis assembly Disassembly and reassembly- E2225HSM...

  • Page 26: Installing The Chassis Assembly

    Installing the chassis assembly Steps Align and place the chassis assembly on the display panel. Connect the LVDS cable to the connector on the display panel. Replace the two screws (M3x3) that secure the chassis assembly to the display panel. Adhere the four aluminum foils to the chassis assembly.
  • Page 27 Figure 21. Installing the chassis assembly Next steps Install the speakers. Install the back cover. Install the stand. Follow the procedure in After working inside your monitor. Disassembly and reassembly- E2225HSM...

  • Page 28: 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 speakers. Remove the chassis assembly. Steps Remove the keypad board from the slot on the display middle-frame. Peel the keypad cable from the panel shielding.

  • Page 29: Installing The Keypad Board

    Installing the keypad board Steps Align and place the keypad board onto the display middle-frame. Adhere the keypad cable on the panel shielding. Figure 23. Installing the keypad board Next steps Install the chassis assembly. Install the speakers. Install the back cover.

  • Page 30: Interface Board

    Interface board Removing the interface board Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Remove the speakers. Remove the chassis assembly. Remove the keypad board. Steps Remove the two hex screws from the VGA port. Remove the mylar and peel the thermal pad from the chassis assembly.
  • Page 31 Figure 25. Removing the interface board Disassembly and reassembly- E2225HSM...
  • Page 32 Figure 26. Removing the interface board Disassembly and reassembly- E2225HSM...

  • Page 33: Installing The Interface Board

    Installing the interface board Steps Connect the LVDS cable to the connector on the interface board. Connect the power cable to the connector on the interface board. Align and place the interface board and power board to the chassis. Replace the five screws (M3x6) to secure the interface board to the chassis assembly. Replace the screw (M4x9) to secure the power board to the chassis assembly.
  • Page 34 Figure 28. Installing the interface board Disassembly and reassembly- E2225HSM...
  • Page 35 Figure 29. Installing the interface board Next steps Install the keypad board. Install the chassis assembly. Install the speakers. Install the back cover. Install the stand. Follow the procedure in After working inside your monitor. Disassembly and reassembly- E2225HSM...

  • Page 36: Power Board

    Power board Removing the power board Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Remove the speakers. Remove the chassis assembly. Remove the keypad board. Remove the interface board. Steps Disconnect the lightbar cable from the connector on the power board. Figure 30.

  • Page 37: Installing The Power Board

    Installing the power board Steps Connect the lightbar cable to the connector on the power board. Figure 31. Installing the power board Next steps Install the interface board. Install the keypad board. Install the chassis assembly. Install the speakers. Install the back cover.

  • Page 38: Chapter 7: Disassembly And Reassembly- E2425Hsm

    Disassembly and reassembly- E2425HSM NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Recommended tools Phillips screwdriver #2  Nut driver 5 mm  Plastic scribe  Screw list 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.

  • Page 39: Stand

    Stand Removing the stand Prerequisites Follow the procedure in Before working inside your monitor. Steps Press the release button and tilt the stand upwards till the stand is separated from the monitor head. Open the screw handle at the bottom of the stand base, then turn the screw anti-clockwise to unscrew it. Remove the stand riser from the stand base.

  • Page 40: Installing The Stand

    Installing the stand Steps Align and place the stand riser on the stand base. Open the screw handle at the bottom of the stand, then turn the screw clockwise to secure the stand riser to the stand base. Close the screw handle at the bottom of the stand. Attach the stand to the monitor.

  • Page 41: Back Cover

    Back cover Removing the back cover Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Steps Remove the two screws (M4x10) that secure the back cover to the chassis assembly. Only two screws must be removed to take off the back cover. NOTE: Using the plastic scribe, pry the back cover starting from the bottom edge of the monitor.
  • Page 42 Figure 35. Removing the back cover Disassembly and reassembly- E2425HSM...

  • Page 43: Installing The Back Cover

    Installing the back cover Steps Hold the back cover above the chassis assembly. Connect the speaker cable to the connector on the interface board. Adhere the tape that secures the speaker cable to the display panel. Place and snap the back cover into place on the chassis assembly.
  • Page 44 Figure 37. Installing the back cover Next steps Install the stand. Follow the procedure in After working inside your monitor. Disassembly and reassembly- E2425HSM...

  • Page 45: Speakers

    Speakers Removing the speakers Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Steps Release the speaker cable from the cable management slots on the back cover. Remove the speakers from the back cover. Figure 38.

  • Page 46: Installing The Speakers

    Installing the speakers Steps Attach the speakers onto the back cover. Secure the speaker cable to the cable management slots on the back cover. Figure 39. Installing the speakers Next steps Install the back cover. Install the stand. Follow the procedure in After working inside your monitor.

  • Page 47: Chassis Assembly

    Chassis assembly Removing the chassis assembly Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Remove the speakers. Steps Remove the four screws (M3x3) that secure the chassis assembly to the display panel. Peel the tape at the bottom left corner of the monitor.
  • Page 48 Figure 41. Removing the chassis assembly Disassembly and reassembly- E2425HSM...

  • Page 49: Installing The Chassis Assembly

    Installing the chassis assembly Steps Align and place the chassis assembly on the display panel. Connect the LVDS cable to the connector on the display panel. Replace the four screws (M3x3) that secure the chassis assembly to the display panel. Adhere the two aluminum foils to the chassis assembly.
  • Page 50 Figure 43. Installing the chassis assembly Next steps Install the speakers. Install the back cover. Install the stand. Follow the procedure in After working inside your monitor. Disassembly and reassembly- E2425HSM...

  • Page 51: 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 speakers. Remove the chassis assembly. Steps Remove the keypad board from the slot on the display middle-frame. Peel the keypad cable from the panel shielding.

  • Page 52: Installing The Keypad Board

    Installing the keypad board Steps Align and place the keypad board onto the display middle-frame. Adhere the keypad cable on the panel shielding. Figure 45. Installing the keypad board Next steps Install the chassis assembly. Install the speakers. Install the back cover.

  • Page 53: Interface Board

    Interface board Removing the interface board Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Remove the speakers. Remove the chassis assembly. Remove the keypad board. Steps Remove the two hex screws from the VGA port. Remove the mylar and peel the thermal pad from the chassis assembly.
  • Page 54 Figure 47. Removing the interface board Disassembly and reassembly- E2425HSM...
  • Page 55 Figure 48. Removing the interface board Disassembly and reassembly- E2425HSM...

  • Page 56: Installing The Interface Board

    Installing the interface board Steps Connect the LVDS cable to the connector on the interface board. Connect the power cable to the connector on the interface board. Align and place the interface board and power board to the chassis. Replace the five screws (M3x6) to secure the interface board to the chassis assembly. Replace the screw (M4x9) to secure the power board to the chassis assembly.
  • Page 57 Figure 50. Installing the interface board Disassembly and reassembly- E2425HSM...
  • Page 58 Figure 51. Installing the interface board Next steps Install the keypad board. Install the chassis assembly. Install the speakers. Install the back cover. Install the stand. Follow the procedure in After working inside your monitor. Disassembly and reassembly- E2425HSM...

  • Page 59: Power Board

    Power board Removing the power board Prerequisites Follow the procedure in Before working inside your monitor. Remove the stand. Remove the back cover. Remove the speakers. Remove the chassis assembly. Remove the keypad board. Remove the interface board. Steps Disconnect the lightbar cable from the connector on the power board. Figure 52.

  • Page 60: Installing The Power Board

    Installing the power board Steps Connect the lightbar cable to the connector on the power board. Figure 53. Installing the power board Next steps Install the interface board. Install the keypad board. Install the chassis assembly. Install the speakers. Install the back cover.

  • Page 61: Chapter 8: Troubleshooting Instructions

    Troubleshooting Instructions 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 if your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps: Turn off both your computer and the monitor.
  • Page 62 Figure 56. HDMI cable disconnected warning message NOTE: This message also appears during normal operation, when the video cable is disconnected or damaged. Turn off your monitor and reconnect the video cable; then turn on your computer and the monitor. If your monitor screen remains blank after you perform the previous procedure, check your video controller and computer, because your monitor is functioning properly.

  • Page 63: Built-In Diagnostics

    Built-in diagnostics 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 your computer and video card. Figure 57. Built-in diagnostics function buttons To run the built-in diagnostics: Ensure that the screen is clean (no dust particles on the surface of the screen).

  • Page 64: Common Problems

    • 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: www.dell.com/pixelguidelines. Turn off the monitor and turn it on again.

  • Page 65: Product-Specific Problems

    Common symptoms Possible solutions Missing color • Perform monitor self-test feature check. Ensure that the video cable connecting the monitor to the computer is connected properly • and is secure. Check for bent or broken pins in the video cable connector. •...

  • Page 66: Chapter 9: Contacting Dell

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

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