Toshiba Tecra A4 (PTA42) - Manual (Page 141)

User’s Manual 9-17
Troubleshooting
USB
Refer also to your USB device’s documentation.
Modem
Problem Procedure
USB device does not
work
Check for a firm cable connection between the
USB ports on the computer and the USB device.
Make sure the USB device drivers are properly
installed. Refer to your Windows documentation
for information on checking the drivers.
If you are using an operating system that does
not support USB, you can still use a USB mouse
and/or USB keyboard. If these devices do not
work, make sure the USB KB/Mouse Legacy
Emulation item in HW Setup is set to Enabled.
If problems persist, contact your dealer.
Problem Procedure
Communication
software can’t
initialize modem
Make sure the computer’s internal modem
settings are correct. Refer to Phone and Modem
Options in the Control Panel.
You can hear a dial
tone but can’t make a
call If the call is going through a PBX machine, make
sure the communication application’s tonedial
detection feature is disabled.
You can also use the ATX command. Refer to the
chapter on AT commands in online help files for
Appendix C, AT Commands.
You place a call, but a
connection can’t be
made Make sure the settings are correct in your
communications application.
After making a call
you can’t hear a ring Make sure the tone or pulse selection in your
communications application is set correctly.
You can also use the ATD command. Refer to the
chapter on AT commands in online help files for
Appendix C, AT Commands.
Communication is cut
off unexpectedly The computer will automatically cut off
communication when connection with the carrier
is not successful for a set time interval. Try
lengthening this time interval.
A CONNECT display
is quickly replaced by
NO CARRIER Check the error control setting in your
communications application.
You can also use the AT\N command.