User Guide

© 2003 Apple Computer, Inc. All rights reserved.
 PowerBook G4
PMU Card
Replacement Instructions
The following instructions explain how to replace the PMU (Power Management Unit) card
in the PowerBook G4 computer.
Tools
• Soft towel or cloth, larger than the PowerBook
• Black stick (or other nonconductive nylon or plastic tool)
Preliminary Steps
Before you begin, remove the following:
• Battery
• Keyboard
• Bottom case
• DVD-ROM drive