Toshiba R400 Sound system, External monitor

Troubleshooting

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 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	In this instance you may be experiencing
heard	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.

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
Monitor does not	After confirming that the monitor’s power switch
turn on	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.

8-14 User’s Manual