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Safety Instructions for Setting Up and Using Your Computer
Plugging In the Power Adapter
m Always leave space around your power adapter. Do not use this equipment in a location
where airflow around the power adapter is confined, such as a bookcase.
m Always disconnect the power adapter and remove the battery before opening the computer
to perform procedures such as installing memory or removing the hard disk.
Connecting a Phone Line to the Internal Modem
m Always disconnect the phone cable before opening the computer to perform procedures
such as installing memory or removing the hard disk.
Using Your PowerBook
When using your PowerBook or when charging the battery, it is normal for the bottom of the
case to get warm. The bottom of the PowerBook case functions as a cooling surface that
transfers heat from inside the computer to the cooler air outside. The bottom of the case is
raised slightly to allow airflow that keeps the unit within normal operating temperatures.
Warning Use only the power adapter that came with your Macintosh PowerBook
computer. Adapters for other electronic devices (including other Macintosh PowerBook
models and other portable computers) may look similar, but they may damage your
computer. If your power adapter came equipped with a three-wire grounding plug (a plug
that has a third grounding pin), then this plug will fit only a grounded AC outlet. If you
are unable to insert the plug into the outlet because the outlet is not grounded, contact a
licensed electrician to replace the outlet with a properly grounded outlet. Do not defeat
the purpose of the grounding plug!
Warning Do not connect a digital telephone line to the modem, because the wrong type
of line could damage the modem.
Warning Never turn on your computer unless all of its internal and external parts are in
place. Operating the computer when it is open or missing parts can be dangerous and
damage your computer.