9-25
T
ROUBLESHOOTING
Monitor
Refer also to Chapter 8,
Optional Devices
,
and to your monitor’s documentation.
Problem
Procedure
Monitor does not
Make sure that the external monitor’s power
turn on
switch is on. Confirm that the external monitor’s
power cable is plugged into a working power
outlet.
No display
Try adjusting the contrast and brightness controls
on the external monitor.
Press hot keys
Fn + F5
to change the display
priority and make sure it is not set for the internal
display.
Display error occurs
Check that the cable connecting the external
monitor to the computer is attached firmly.
If problems persist, contact your dealer.
Modem
Refer to
Appendix
C
and
D
.
Problem Procedure
Communication
Make sure the computer’s internal modem
software can’t
settings are correct. Refer to
Phone and Modem
initialize modem
Properties in the Control Panel.
You can hear a dial
If the call is going through a PBX machine, make
tone but can’t make
sure the communication application’s tone dial
a call
detection feature is disabled.
Hardware and system checklist
Содержание A40 Series
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