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User’s Manual 8-17
Troubleshooting
Memory expansion
Refer also to Chapter 7, Optional Devices, for information on installing
memory modules.
Modem
Problem Procedure
The computer hangs
up and issues beep
sounds. (A long leep,
three short beeps,
three short beeps, and
then a long beep.)
Make sure the memory module installed in the
expansion slot is compatible with the computer.
If an incompatible module has been installed,
follow the steps below.
1. Turn off the power.
2. Disconnect the AC adaptor and all periph-eral
devices.
3. Remove the battery pack.
4. Remove the memory module.
5. Replace the battery pack and/or connect the
AC adaptor.
6. Turn on the power.
If problems persist, contact your dealer.
Problem Procedure
Communication
software can't initialize
the modem.
Make sure the computer's internal modem
settings are correct. Refer to Phone and Modem
Options Properties 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 tone dial
detection feature is disabled.
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.
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.