Dell OptiPlex 5490 Service Manual page 81

Steps
1. Place the system in an upright position, and slide the display panel on the slots of the display-assembly base.
2. Route the display-backlight, and display cable through the slots on the display-assembly base.
3. Place the display-assembly base on a clean and flat surface with the display panel facing down.
4. Replace the nine screws (M3x5) to secure the display panel to the middle frame and display-assembly base.
5. Remove the three jig screws from the display panel and replace with three screws (M3x5) to secure the display panel to the
middle frame and display assembly base.
NOTE: The jig screw is shipped with the replacement display panel. It is used to align the display panel to the display-
assembly base.
Table 3. Number of jig screws
Display type Number of jig screws
Touch display One
Removing and installing components 81