HP Compaq NX4820 Maintenance And Service Manual page 132

2. Remove the PM2.0×8.5 screw 1 that secures the optical
drive to the computer.
3. Insert a thin tool, such as a paper clip, into the media tray
release hole 2. (The optical drive media tray releases from
the optical drive.)
4. Use the media tray frame to slide the optical drive 3 to
the left.
5. Remove the optical drive.
Removing the Optical Drive
Reverse the above procedure to install an optical drive.
Maintenance and Service Guide
Removal and Replacement Procedures
5–19