Toshiba Satellite A665 Series Maintenance Manual page 127

3 Tests and Diagnostics
Mechanical type buttons x 7 to relate with above showed.
BUTTON A  ECO
BUTTON B Wireless on/off
BUTTON C  Illumination on/off or 3D Vision
BUTTON D  Play/Pause
BUTTON E  Mute
BUTTON F  Volume -
BUTTON G  Volume +
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Satellite A660/A665 Series Maintenance Manual