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OptiPlex 7490 All-In-One Service Manual

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Removing the middle frame

Prerequisites

  1. Follow the procedure in Before working inside your computer.
  2. Remove the stand.
  3. Remove the cable cover (optional).
  4. Remove the back cover.
  5. Remove the system-board shield.
  6. Remove the hard drive.
  7. Remove the wireless card.
  8. Remove the bottom cover.
  9. Remove the rear-I/O bracket.
  10. Remove the speakers.
  11. Remove the camera assembly.
  12. Remove the system board.
  13. Remove the power-button board.
  14. Remove the microphones.
  15. Remove the PSU.
  16. Remove the PSU fan.
  17. Remove the side-I/O board.
  18. Remove the antenna modules.
  19. Remove the display panel.

About this task

The following image indicates the location of the middle frame and provides a visual representation of the middle frame removal procedure.

Image: Removing the middle frame

Image: Removing the middle frame

Steps

  1. Remove the 17 screws (M3x5) that secure the middle frame to the display-assembly base.
  2. Remove the middle frame and lift the middle frame off the display-assembly base.

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