Apple Macintosh PowerBook 150 - Manual (Page 120)

Modems
An external modem doesn’t work.
m The modem may be turned off or improperly connected. Make sure it is
turned on and that all connections are correct.
m The printer port may not be configured to work with an external modem.
Open the PowerBook Setup control panel and make sure that External is
selected.
m AppleTalk may be active. Turn off AppleTalk in the Chooser or in the
AppleTalk Switch module of the Control Strip.
m Floppy disk drive activity can interfere with data transmission of external
modems. Try using the modem again when the floppy disk drive is not in
use. (If you intend to use communications programs frequently, Apple
recommends using an internal modem; the internal modem port of the
PowerBook 150 has been optimized for communciations programs.)
m If you are transmitting data at a rate of 9600 baud or faster, try resetting
your modem to transmit at a slower speed.
An internal modem doesn’t work.
m The modem connection may not be activated. Open the PowerBook Setup
control panel and make sure that Internal is selected.
See the modem manual for more information about using your modem.
Printers
Your computer can’t find the printer.
m The printer may be turned off. Turn it on.
m The printer may not be selected in the Chooser. Open the Chooser and
select the printer you want to use.
Your printer does not appear in the Chooser window.
m The printer may not be connected properly. Check the connections
between your computer and the printer, including relevant sections of the
network if appropriate.
112 Chapter 9