User's Manual

Table Of Contents
113
Appendix B. Troubleshooting
77-0100-001 12 September 2000
Landline Modems
The modem doesnt work
Make sure a modem is installed. Locate the Config string label on the bottom of the GoBook computer; a
modem is not installed if the seventh digit is Z.
When you first try to use HyperTerminal or similar application, the system responds with a message asking if
you want to install the modem. Answer Yes to this question and follow the instructions on the screen to
install it.
If you are operating in DOS, verify that the modem has been powered on using MODEM ON. MODEM OFF
will power off the modem to conserve power when the modem is not in use.
Make sure the communication settings are correct in your application. Refer to the online Help for your
application.
Make sure you have the correct COM port selected in your application. Refer to the online Help for your
application. The following table describes the correct settings for each modem type.
Modem type COM port
External COM1 or COM2
Internal landline COM3
Internal CDPD COM4
Make sure that the Interrupt Request lines (IRQs) for COM3 or COM4 specified for Windows match the IRQ
lines specified in the SCU.
You may also need to try a different IRQ setting. See Section 6 Customizing Your Bios Settings