Dell Inspiron 1720 (Mid 2007) - Manual (Page 143)

Adding and Replacing Parts
143
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.
1 optical drive 2 notch
3 locking screw
3
1
2