44 Chapter 3 Using Your Computer
Using Your Modem
Your computer comes with an Apple 56K v.92 modem installed. To connect the
modem, plug one end of the phone cord or RJ-11 cable into the modem port on the
computer and the other end into a standard RJ-11 telephone wall jack.
Make sure you connect to an analog phone line—the kind used typically in homes. The
modem will not work with a digital phone line.
For information on how to establish an Internet connection, see Appendix C,
“Connecting to the Internet,” on page 79. More information about the internal modem
is also available in Mac OS Help.
Connecting Speakers and Audio Devices
Your PowerBook comes with two built-in speakers, a built-in microphone, an audio line
in port, and a headphone out port.
Note: While devices are plugged in, sound won’t come through your built-in speakers.
Unplug any headphones or speakers to hear the computer speakers.
You can connect external speakers, headphones, and other sound output devices to
the headphone out port. The headphone out port is a stereo 3.5 mini-phono jack.
You can record sound onto your hard disk using the built-in microphone located under
the left speaker grille. You can also connect external microphones or other audio
equipment to the audio line in port. The audio line in port is a stereo 3.5 mini-phono
jack, which does not provide power to a connected device, so you must use self-
powered peripherals. For applications, such as iMovie, that can record sounds, use the
Sound pane of System Preferences to select the audio input device you want to use,
including microphones connected via USB.
The volume controls on your keyboard allow you to easily change volume. You can also
access these controls from the Sound pane of System Preferences.
For more information about using or troubleshooting sound on your computer, choose
Help > Mac Help from the menu bar and search for “sound.”
Warning: Do not connect a digital telephone line to the modem as it could damage
the modem. Contact your telephone service provider if you are unsure whether you
have a digital telephone line.
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