Toshiba manual 146

	Troubleshooting
Problem	Procedure
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.
	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.

External monitor

Please also refer to Chapter 3, Hardware, Utilities and Options, and to the documentation supplied with your monitor for further information.

Problem	Procedure
Monitor does not turn	After confirming that the monitor's power switch
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.
No display	Try adjusting the contrast and brightness
	controls on the external monitor.
	Press the FN + F5 hot key in order to change the
	display priority and ensure that it is not set for the
	internal display only.
	Check to see if the external monitor is
	connected.
	When the external monitor is set as the primary
	display device in extended desktop mode, it will
	not display when the computer wakes up from
	Sleep Mode if the external monitor has been
	disconnected while in Sleep Mode.
	To keep this from happening, do not disconnect
	the external monitor while the computer is in
	Sleep or Hibernation Mode.
	Remember to turn off the computer before
	disconnecting the external monitor.
	When the display panel and an external monitor
	are set to clone mode and they are turned off by
	the timer, the display panel or the external
	monitor may not display when turned on again.
	If this occurs, press FN + F5 to re-set the display
	panel and external monitor to clone mode.

User’s Manual 8-16