Dell Latitude 7490 Owner's Manual page 45

1. Follow the procedure in
2. Remove the base cover.
3. Disconnect the battery cable from the connector on the system board.
4. Remove the memory module.
5. Remove the PCIe SSD.
6. Remove the WLAN card.
7. Remove the WWAN card.
8. Remove the heat sink
9. Remove the system board.
10. Disconnect the cables from the palmrest end:
a. keyboard cable [1]
b. keyboard backlight cable [2] , USH Board cable(Optional)
c. Touchpad and USH board cables [3,4]
11. To remove the keyboard assembly:
To identify the screws, see
NOTE:
a. Remove the 18 (M2.0 x 2.5) screws that secure the keyboard [1].
b. Lift the keyboard assembly from the chassis [2].
Before working inside your
assembly.
screw list
computer.
Removing and installing components 45