Apple Macintosh PowerBook 1400 - Manual (Page 9)

When you are ready to begin, follow these steps:
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.
Note: It’s important to plug the adapter into a wall outlet before attaching it to
the computer.
2 Plug the power adapter plug into the power adapter port (marked with the icon
¯
) on the
back panel of the computer.
¯
Power adapter port
Power adapter plug
Power adapter
Power cord
WARNING This equipment is intended to be electrically grounded. The
power adapter that came with your Macintosh 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!
9 Getting Started