Toshiba Satellite P750 Series User Manual page 185

Sound system
In addition to the information in this section, please also refer to the
documentation supplied with your audio device.
Problem
No sound is heard
Annoying sound is
heard
User's Manual
Procedure
Adjust the volume.
To increase the volume click the volume up
button, and to decrease it click the volume down
button.
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 device is
enabled and that the device is properly working.
For further information, please refer to
"Troubleshooting in Windows" section of
Windows Help and Support.
In this instance you may be experiencing
feedback from either the internal microphone or
an external microphone connected to the
computer - please refer to
Chapter 4, Operating
information.
Volume cannot be adjusted during Windows start
up or shut down.
If you are still unable to resolve the problem,
contact your reseller, dealer or service provider.
Satellite P750/P755 Series
Sound System
Basics, for further
in
8-19