Dell Latitude LS Service Manual page 44

NOTE: On the under side of the doors, a small F is printed on the front door
and a small B is printed on the back door. As you hold the doors for installation,
the front door is near you, the back door is away from you, and the tension
spring is to the left.
1. Turn the computer upside down.
2. Holding the two doors together at their right edges, insert the left hinges
3. Carefully bow the doors in the center.
4. Slip the right hinge of the back door on to the right, back hinge pin.
5. Slip the right hinge of the front door on to the right, front hinge pin.
6. Release the doors so they set into place.
support.dell.com
The APR connector door opening should be at the top.
of the doors (at the end with the tension spring) onto the left, front and
back hinge pins.
Dell Latitude LS Portable Computers Service Manual 35