HP Compaq 6820s Maintenance And Service Manual page 54

Lift the switch cover (1) straight up until it disengages from the computer, and slide it back (2) until
5.
it rests on the display assembly.
Lift the rear edge of the keyboard (1) until it rests at an angle, and slide it back (2) until it rests on
6.
the display assembly and switch cover.
46 Chapter 4 Removal and replacement procedures