User Guide

 PowerBook G4

Bottom Case

Replacement Instructions

Be sure to follow the instructions in this sheet carefully. Failure to follow these instructions

could result in damage to your equipment and may void your warranty.

Note: Written and video instructions covering customer-installable parts are available at

http://www.info.apple.com/installparts/.

Warning: Sharp edges can exist inside your computer and on any parts being

removed or installed. Use caution to avoid injury.

Tools Required

• Phillips screwdriver

• soft towel or cloth, larger than the PowerBook

Removing the Bottom Case

1. Place your computer on a clean, ﬂat surface.

2. Shut down your computer. Disconnect the power cord and any other cables connected

to the computer.

Warning: Always turn off your computer before opening its case to avoid

damaging its internal components.

Warning: The internal components of your PowerBook may be hot. If you have

been using your PowerBook, wait 30 minutes after shutting it down to let the

internal components cool before continuing.

3. Place a towel or soft cloth on a table in front of you (Figure 1A). The towel or cloth will

protect the keyboard and display area of the PowerBook when you ﬂip it over to

remove the bottom case. Make sure it covers an area large enough for your

PowerBook and that it hangs over the edge of the table.

4. With the display open at an angle greater than 90 degrees, carefully ﬂip the

PowerBook over and lay it ﬂat, fully on the table. Make sure the display hangs over the

edge of the table and rests lightly on your lap (Figure 1B).