HP Compaq Presario,Presario R4000 Maintenance And Service Manual page 131

Removal and Replacement Procedures
✎
Steps 3 through 7 apply to HP Pavilion zv6000 models. See
steps 8 through 12 in this section to remove the base enclosure
on Compaq Presario R4000 models.
3. Remove the thirteen PM2.0×15.0 screws that secure the base
enclosure to the notebook.
Removing the Base Enclosure Screws, Part 1, HP Pavilion zv6000
Models
Maintenance and Service Guide 5–41