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Sound system, External monitor, Sound system -16 external monitor -16 – Toshiba M400 User Manual

Page 218

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9-16

User’s Manual

Troubleshooting

Sound system

Refer also to documentation for your audio devices.

External monitor

Refer also to Chapter 8,

Optional Devices

, and to your monitor’s

documentation.

Problem

Procedure

No sound is heard

Adjust the volume control dial.

Check the software volume settings.

Make sure the headphone connection is secure.
If problems persist, contact your dealer.

Check Windows Device Manager. Make sure the
sound function is enabled and that settings for I/
O address, Interrupt level and DMA are correct
for your software and do not conflict with other
hardware devices that you may have connected
to the computer.

Annoying sound is
heard

You may be experiencing feedback. Refer to

Sound System

in Chapter 4, Operating Basics.

If problems persist, contact your dealer.

Problem

Procedure

Monitor does not turn
on

Make sure that the external monitor’s power
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
LCD.

Display error occurs

Check that the cable connecting the external
monitor to the computer is attached firmly.

If problems persist, contact your dealer.