Toshiba Portege R400 - Manual (Page 150)

8-14 User’s Manual
Troubleshooting
Sound system
In addition to the information in this section, please also refer to the
documentation supplied with your audio device.
External monitor
Please also refer to Chapter 3, Features, Utilities and Options , and to the
documentation supplied with your monitor for further information.
Problem Procedure
No sound is heard Adjust the volume control switch.
Check the software volume settings.
Please check to see if Mute is turned to Off
Check to make sure the headphone connection
is secure.
Check within the Windows Device Manager
application to ensure the sound function is
enabled and that settings for elements such as
I/O port address, interrupt level and DMA
channel are correct for your software, and that
they do not conflict with any other hardware
devices connected to the computer.
For further information on these settings, please
refer to the documentation supplied with your
audio device.
If you are still unable to resolve the problem,
contact your reseller, dealer or service provider.
Annoying sound is
heard In this instance you may be experiencing
feedback from either the internal microphone or
an external microphone connected to the
computer - please refer to
Sound System in
Chapter 4, Operating Basics for further
information.
If you are still unable to resolve the problem,
contact your reseller, dealer or service provider.
Problem Procedure
Monitor does not
turn on After confirming that the monitor’s power switch
is on, you should check the connections to make
sure that the power cord/adaptor is firmly
connected to the monitor and to a working power
outlet.