User's Manual

151
Appendix B. Troubleshooting
79-0003-003 22 October 1999
Landline Modems
Attempting to use the speaker phone without a modem installed
causes Windows to lock up
•
This can also happen if the IRQ settings in Windows under Control
Panel, Ports dont match those in the SCU. Verify IRQ settings and
that the modem option is installed. Locate the Config string label
on the bottom of the mobile computer; a modem is not installed if
the seventh digit is Z.
The modem dials and the answering modem generates tone, but
our modem does not begin the training sequence to establish a
connection
Although the problem may appear to originate from the computer, the
source of the problem is the answering modem.
• Try setting up the answering modem to generate the correct V.22
tone which can usually be done by sending an AT command to the
modem. See the AT Command summary in the AT Command
Reference manual more information.
• Add %!1300AO to the initialization string. If used, this command
must be sent immediately before the command to dial the desired
phone number and sent again before re-dialing the number since the
modem will default to the original setting at the end of the session.
Miscellaneous
The computer shuts off unexpectedly
• The computer has entered suspend mode. Press FN+ON to turn it
back on.
• The battery capacity may be low. Connect external power to charge
the battery, or replace the battery with a fully charged one.
• The battery door may be loose. Make sure the battery door is
securely latched.