Only select Satellite A660 models have a backlit keyboard. Use the link below to see if yours is among them:http://us.toshiba.com/computers/lap...
Manuals for Toshiba laptops and netbooks are available on the Toshiba Support website, Download section at http://support.toshiba.com
Below is a link for the Satellite A660 series.http://cdgenp01.csd.toshiba.com/con...
Setup for the LED Backlit keyboard is through the Toshiba Hardware Utility\Illumination section, as outlined on pp.165
of the User’s Guide. Once properly setup, the keyboard may be toggled ON/OFF using the Illumination Media Control button
as outlined on pps.111-112 of the User’s Guide. For additional information, call Toshiba Tech Support at 1-800-457-7777.