|Fn + Esc||Switch built-in speaker on/off.|
|Fn + F1||Blanks the display and activates instant security. The user login screen appear and a user will need to log back in to gain access to the laptop.|
|Fn + F2||Switch between power plans.|
|Fn + F3||Puts the laptop into Sleep mode.|
|Fn + F4||Puts the laptop into Hibernation mode.|
|Fn + F5||Switch between laptop screen and external display.|
|Fn + F6||Decrease display brightness.|
|Fn + F7||Increase display brightness.|
|Fn + F8||Switch wireless on/off.|
|Fn + F9||Switch touchpad on/off.|
|Fn + F10||Switch cursor control overlay on/off.|
|Fn + F11||Switch numeric overlay on/off.|
|Fn + F12||Switch scroll lock on/off.|
|Fn + Space||Charges the display resolution.|
|Fn + 1||Switch the zooming utility to zoom out.|
|Fn + 2||Switch the zooming utility to zoom in.|
|Fn + 3||Decrease built-in speaker volume.|
|Fn + 4||Increase built-in speaker volume.|
The Toshiba Hardware Setup is run from windows and is used for configuring the laptop.
To run the Toshiba Hardware Setup, click Start, All programs, Toshiba, Utilities and then HWSetup, or click the Toshiba Hardware Setup icon in the Optimize tab of Toshiba Assist.
The Hardware Setup tabs are Boot Priority, Display, General, Keyboard, LAN, Password, SATA and USB .
Download Toshiba Satellite C640/C665 manual