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Summary of Contents for Dell SE2425HM
- Page 1 Dell 24 Monitor SE2425HM Simplified Service Manual Model: SE2425HM Regulatory Model: SE2425HMf February 2025 Regulatory information 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
Front view ..................................5 Back view ..................................6 Side view ..................................7 Bottom view .................................. 7 Major components of SE2425HM monitor ..................8 Wiring connectivity diagram ....................... 9 Connecting the cables ..............................10 Connecting HDMI cable ..................................10 Connecting VGA cable..................................10 Disassembly and reassembly ...................... -
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 included in this document assumes that you have read the safety information that shipped with your monitor. -
Page 5: Views Of Se2425Hm Monitor
Views of SE2425HM monitor Front view Figure 1. Front view of the monitor Table 1. Components and descriptions. Label Description To access the OSD menu and change the settings if required. Function buttons To turn the monitor on or off. -
Page 6: Back View
(based on Kensington Security Slot) prevent unauthorized movement of your monitor. See this label if you need to contact Dell for technical support. The Regulatory label (including MyDell QR Service Tag is a unique alphanumeric identifier that allows Dell service code, serial number, and Service Tag technicians to identify your monitor's specifications and access... -
Page 7: Side View
Bottom view of the monitor Table 3. Components and descriptions. Label Description To connect the monitor power cable. Power port Connect to your computer with the HDMI cable. HDMI port Connect to your computer with the VGA cable. VGA port Views of SE2425HM monitor... -
Page 8: Major Components Of Se2425Hm Monitor
Major components of SE2425HM monitor Figure 6. Major components Table 4 Components. Item Description Item Description Power board Stand riser Stand base Display panel Back cover Display middle-frame Chassis Keypad board Interface board Major components of SE2425HM monitor... -
Page 9: Wiring Connectivity Diagram
Wiring connectivity diagram Figure 7. Wiring connectivity diagram Table 5 Cables. Item Description Lightbar cable Low-Voltage Differential Signaling (LVDS) cable Keypad cable Wiring connectivity diagram... -
Page 10: 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: 1. -
Page 11: 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 caused by unauthorized servicing will not be covered under the warranty. -
Page 12: Stand
Stand Removing the stand Prerequisites 1. Follow the procedure in Before working inside your monitor. Steps 1. Press the stand assembly down to access the release button. 2. Using a screwdriver, press the release button and pull the stand assembly away from the monitor. 3. -
Page 13: Installing The Stand
Installing the stand Steps 1. Align and insert the stand riser into the stand base until it snaps into place. 2. Slide the stand assembly into the grooves on the display back cover and snap it in place. Figure 11. Installing the stand Next steps Follow the procedure in... -
Page 14: Back Cover
Back cover Removing the back cover Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Remove the stand. Steps 1. Remove the two screws (M4x4.5) that secure the back cover to the chassis assembly. 2. Using a plastic scribe, pry the back cover starting from the bottom edge of the monitor. 3. - Page 15 Figure 13. Removing the back cover Disassembly and reassembly...
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Page 16: Installing The Back Cover
Installing the back cover Steps 1. Align the back cover with the chassis and snap it into place. NOTE: Align the screw holes on the back cover with the screw holes on the chassis assembly before applying slight pressure to the back cover. 2. -
Page 17: Chassis Assembly
Chassis assembly Removing the chassis assembly Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Remove the stand. 3. Remove the back cover. Steps 1. Remove the four screws (M3x3) that secure the chassis to the display panel. 2. - Page 18 Figure 16. Removing the chassis assembly Disassembly and reassembly...
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Page 19: Installing The Chassis Assembly
Installing the chassis assembly Steps 1. Connect the LVDS cable to the connector on the display panel. 2. Position the chassis assembly on the display panel, ensuring the notch on the chassis bracket aligns with the rib at the bottom of the display middle-frame. - Page 20 Figure 18. Installing the chassis assembly Next steps 1. Install the back cover. 2. Install the stand. 3. Follow the procedure in After working inside your monitor. Disassembly and reassembly...
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Page 21: Keypad Board
Keypad board Removing the keypad board Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Remove the stand. 3. Remove the back cover. 4. Remove the chassis assembly. Steps 1. Remove the keypad board from the slot on the display middle-frame. 2. -
Page 22: Installing The Keypad Board
Installing the keypad board Steps 1. Align and place the keypad board onto the display middle-frame. 2. Adhere the keypad cable to the panel shielding. Figure 20. Installing the keypad board Next steps 1. Install the chassis assembly. 2. Install the back cover. -
Page 23: Interface Board
Interface board Removing the interface board Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Remove the stand. 3. Remove the back cover. 4. Remove the chassis assembly. 5. Remove the keypad board. Steps 1. Remove the two hex screws from the VGA port. 2. - Page 24 Figure 22. Removing the interface board Disassembly and reassembly...
- Page 25 Figure 23. Removing the interface board Disassembly and reassembly...
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Page 26: Installing The Interface Board
Installing the interface board Steps 1. Connect the LVDS cable to the connector on the interface board. 2. Connect the power cable to the connector on the interface board. 3. Align and place the interface board and power board to the chassis assembly. 4. - Page 27 Figure 25. Installing the interface board Disassembly and reassembly...
- Page 28 Figure 26. Installing the interface board Next steps 1. Install the keypad board. 2. Install the chassis assembly. 3. Install the back cover. 4. Install the stand. 5. Follow the procedure in After working inside your monitor. Disassembly and reassembly...
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Page 29: Power Board
Power board Removing the power board Prerequisites 1. Follow the procedure in Before working inside your monitor. 2. Remove the stand. 3. Remove the back cover. 4. Remove the chassis assembly. 5. Remove the keypad board. 6. Remove the interface board. Steps 1. -
Page 30: Installing The Power Board
Installing the power board Steps 1. Connect the lightbar cable to the connector on the power board. Figure 28. Installing the power board Next steps 1. Install the interface board. 2. Install the keypad board. 3. Install the chassis assembly. 4. -
Page 31: Troubleshooting
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 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: 1. -
Page 32: 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 31. Built-in diagnostics function buttons To run the built-in diagnostics: 1. -
Page 33: 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 34: 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 35: 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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