Installing The Palm-Rest Assembly - Dell Latitude 9420 Service Manual

6. Remove the WWAN card.
7. Remove the heat sink.
8. Remove the display assembly.
9. Remove the battery.
10. Remove the left speaker.
11. Remove the right speaker.
12. Remove the WLAN antenna
13. Remove the I/O daughter
14. Remove the power button with fingerprint reader assembly
15. Remove the system board.
16. Remove the USH daughter
17. Remove the WWAN main antenna
About this task
The following images indicate the location of the palm-rest assembly and provide a visual representation of the removal
procedure.

Installing the palm-rest assembly

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the palm-rest assembly and provide a visual representation of the removal
procedure.
58 Removing and installing components
module.
board.
board.
module.
(for systems shipped with a fingerprint reader).