Toshiba L550, L550D, L555, L555D buttons, Touch Pad, Power button, Display hinge, Display screen, Stereo speakers, Front operation, Touch Pad control, System indicators, panel (four buttons)

L550/L550D/L555/L555D

Display screen	Please be aware that, when the computer is
	operating on the AC adaptor, the image
	displayed on the internal screen will be
	somewhat brighter than when it operates on
	battery power. This difference in brightness
	levels is intended to save power when operating
	on batteries. For more information on the
	computer’s display, please refer to the Display
	Controller section in Appendix B.
Power button	Press this button to turn the computer’s power on
	and off.
Stereo speakers	The speakers emit sound generated by your
	software as well as audio alarms, such as low
	battery condition, generated by the system.

Keep foreign objects out of the speakers. Never allow metal objects, such as screws, staples and paper clips, to enter the computer or keyboard. Foreign metal objects can create a short circuit, which can cause computer damage and fire, possibly resulting in serious injury.

Touch Pad	The Touch Pad mouse control device located in
	the center of the palm rest is used to control the
	movement of the on-screen pointer. For more
	information, please refer to the Using the Touch
	Pad section in Chapter 4, Operating Basics.
Touch Pad control	The control buttons located below the Touch Pad
buttons	allow you to select menu items or manipulate text
	and graphics as designated by the on-screen
	pointer.
System indicators	These LED indicators allow you to monitor the
	status of various computer functions and are
	described in more detail within the System
	indicators section.
Front operation	Four buttons are available for use:
panel (four buttons)	Play/Pause, Previous, Next, Mute.
	These buttons allow you to manage audio/video,
	run applications and access utilities.
Display hinge	The display hinge allows the display panel to be
	position at a variety of easy-to-view angles.

2-8 User’s Manual