User Guide

PowerBook G4 Bottom Case - 3
Installing the Bottom Case
1. To attach the bottom case, align the notches on the right and left sides of the case
(some of these can be viewed through the battery opening). Then press down and
toward you slightly to secure the case (Figure 7).
Verify that the case lies flat and fits properly around the battery latch and that the
alignment tab that protrudes on the underside of the bottom case (Figure 7A), has
seated properly.
The case edges should line up smoothly.
Note: Applying pressure to the bottom case at the back of the battery compartment
opening, near the latch, and on the front and back outside edges of the case can help
with alignment.
2. Check that the eight screw holes on the case align with the holes on the computer.
Verify that the display rests on your lap as shown (Figure 1B).
3. Replace the eight screws in the order shown (Figure 7). Do not overtighten or
damage could result.
Note: The screws must go in straight and easily; if not, readjust the bottom case for
proper alignment.
Important: To avoid damaging the case, be careful that the screwdriver tip does not
slip out of the screw head during tightening.
4. Replace the battery.
5. Turn the computer over so that the DVD slot (Figure 8A) faces you. Just below the
center of the DVD slot, verify that the bottom case is flush with the front edge of the
slot. If the case is slightly bowed and there is a gap (Figure 8B), carefully pull the
bottom edge of the DVD slot until it clicks into place and becomes flush with the
bottom case.
6. Reconnect the power cord and any other cables that were connected and restart your
computer.
Warning: Never turn on your computer unless all of its internal, external, and
case parts are securely installed. Operating the computer when its case is
open or missing parts can damage your computer or cause injury.