Dell OptiPlex 7770 All-in-One Service Manual

Installing the display panel

1. Place the display assembly base in its upright position, and slide the display panel into the slot between the middle frame and the display assembly base [1].
2. Route the touchscreen cable through the routing guide on the display assembly base.
3. Push the display backlight cable through the slots on the display assembly base [2].
4. Push the display panel towards the display assembly base, closing the gap between the display panel and the middle frame [3].

   NOTE: : Ensure the display cable, touchscreen cable, and display backlight cable has been fully threaded through the slots on the display assembly base before closing the gap between the display panel and the middle frame.

   
5. Place the display assembly base on a clean and flat surface with the display panel facing down.
6. Replace the 12 (M3x5) screws that secure the display panel to the middle frame and display assembly base [2].
7. Route the display backlit cable through the routing guides on the display assembly base [1] .

   NOTE: : The screws that secure the middle frame and display assembly base to the display panel are silver in color and etched with "LCD" around the screw holes.

   
8. Install the following components:
   1. Camera
   2. PSU fan
   3. PSU
   4. System board
   5. WLAN card
   6. Hard drive
   7. Speakers
   8. I/O bracket
   9. Base cover
   10. System board shield
   11. Back cover
   12. Stand
9. Follow the procedure in After working inside your computer.