Toshiba Portege Z930-B - Manual (Page 107)

Problem Procedure
The "USB Wakeup
function" does not
work. When "System ON CDP Charge Mode" or "USB
Sleep and Charge function" is enabled, the "USB
WakeUp" function does not work for ports that
support the Sleep and Charge function.
In that case, use an USB port that does not have
the USB Sleep and Charge function or change to
disable both "System ON CDP Charge Mode" and
"USB Sleep and Charge function".
Sound system
In addition to the information in this section, please also refer to the
documentation supplied with your audio device.
Problem Procedure
No sound is heard 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.
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 3, Operating
Basics for further information.
Volume cannot be adjusted during Windows start
up or shut down.
If you are still unable to resolve the problem,
contact TOSHIBA Support.
External monitor
Please also refer to Chapter 3, Operating Basics , and to the
documentation supplied with your monitor for further information.
Portégé Z930/Satellite Z930
User's Manual 6-11