Apple PowerBook (500 Series) - Manual (Page 10)

When you are ready to begin:
1 Plug one end of the power cord into the power adapter and the other end into a three-
hole grounded outlet or power strip.
2 Plug the power adapter cable into the power adapter port (marked with the icon
¯
) on
the back panel of the computer.
Power adapter port
WARNING This equipment is intended to be electrically grounded. Your
PowerBook is equipped with a three-wire grounding plug—a plug that
has a third (grounding) pin. This plug will fit only a grounded AC
outlet. This is a safety feature. If you are unable to insert the plug into
the outlet, contact a licensed electrician to replace the outlet with a
properly grounded outlet. Do not defeat the purpose of the grounding
plug!
2 Chapter 1