HP Compaq Presario,Presario V3501 Maintenance And Service Manual page 68

Remove the three Phillips PM2.5×7.0 screws that secure the keyboard to the computer.
2.
Turn the computer display-side up, with the front toward you.
3.
Open the computer as far as possible.
4.
Lift the rear edge of the keyboard (1) until it rests at an angle.
5.
Release the keyboard (2) by sliding it back to disengage the tabs on the front edge of the keyboard
6.
from the top cover.
Swing the rear edge of the keyboard (3) up and forward until it rests on the palm rest.
7.
60 Chapter 4 Removal and replacement procedures