User Guide

PowerBook G4 Modem - 3
4. Install the hexnut screw (Figure 6A). The screw hole on the modem should be aligned
with the screw flange; if not, the modem may not be properly attached to the logic
board (see step 3).
Note: It may be helpful to use a finger tip to hold the top of the screw straight and
steady while turning the screw with a tool.
Closing the Computer
1. Verify that the keyboard connector cable is securely attached to the logic board
(Figure 13).
2. Flip the keyboard back on top of the opening and insert the tabs at the bottom of the
keyboard into the openings in the case (Figure 14).
3. Pull down on the keyboard release tabs located to the left of the F1 and F9 keys
(Figure 3) and then press down on the top of the keyboard.
4. Release the tabs to secure the keyboard in place.
5. Turn over the PowerBook and replace the battery (Figure 15).
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.
Replacing International Modems
After you have replaced a modem in Europe or Asia, open the software utility Modem
Country Selector and verify that the modem is set to the correct country. Modem Country
Selector is located in the Apple Extras folder on your hard drive or can be downloaded as
part of the Apple Modem Updater software bundle at http://asu.info.apple.com.