Dell Inspiron 1521 (Mid 2007) - Manual (Page 147)

Adding and Replacing Parts
147
Replacing the Optical Drive
1 Slide the optical drive into the bay.
2 Replace and tighten the locking screw.
Hinge Cover
CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions in the Product Information Guide.
NOTICE:
To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as a
connector on the back of the computer).
NOTICE:
To help prevent damage to the system board, you must remove the battery
from the battery bay before you begin working inside the computer.
Removing the Hinge Cover
1 Follow the procedures in "Before You Begin" on page 141.
2 Open the display as far as it will open.
NOTICE:
To avoid damage to the hinge cover, do not lift the cover on both sides
simultaneously.
3 Insert a plastic scribe into the indent to lift the hinge cover on the right side.
4 Ease the hinge cover up, moving from right to left, and remove it.