HP Compaq Presario,Presario V4000 Maintenance And Service Manual page 160

Removal and Replacement Procedures
4. Turn the computer upside down with the front toward you.
5. Remove the following screws:
1 Nine Phillips PM2.5×7.0 screws
2 Four Phillips PM2.0×4.0 screws
6. Disconnect the speaker cable 3.
Removing the Base Enclosure Screws, Part 2,
Compaq Presario V4000 Models
5–56 Maintenance and Service Guide