Toshiba L550, L550D, L555, L555D the LCD screen, Problems above, of the computer, Markings appear on, remain unresolved or, other problems occur, ■running under battery mode

L550/L550D/L555/L555D

Problem	Procedure
Markings appear on	These marks may have come from contact with
the LCD screen.	the keyboard or Touch Pad while the display has
	been closed. You should try to remove the marks
	by gently wiping the display panel with a clean
	dry cloth or, if this fails, with a good quality LCD
	screen cleaner. In this latter instance you should
	always follow the instructions with the screen
	cleaner and always ensure you let the LCD
	screen dry properly before closing it.
Problems above	You should initially refer to the documentation
remain unresolved or	supplied with you software to determine if it is
other problems occur	this that is causing the problems. Alternatively
	you may wish to run the TOSHIBA PC
	Diagnostic Tool to check the general operation
	of the computer.
	If you are still unable to resolve the problem,
	contact your reseller, dealer or service provider.

Display Power Saving Technology Display Power Saving Technology: Your model may include the Display Power Saving Technology Display Power Saving Technology feature that can save the computer’s power consumption by optimizing picture contrast on the internal LCD. This feature can be used if the computer is:

■configured with Mobile Intel® HM55 Express Chipset model in graphic chip by Intel®*

■running under battery mode■using the internal LCD display onlyThe power and performance settings can be adjusted in the Intel®Graphics and Media Control Panel.To access this control panel go to

Control Panel ->Appearance and Personalizaion ->Display ->Change display settings ->Advanced settings ->Intel® Graphics and Media Control Panel ->Graphics Properties ->Power ->Power Features ->Graphics Power Plan Settings ->select On battery ->

Display Power Saving Technology

If you want to improve the picture quality under the conditions mentioned above, adjust the setting towards Maximum Quality or disable this feature.

*Please visit your region’s web site or refer to the catalog for the configuration details of the model that you have purchased.

9-8 User’s Manual