Sony PCG-FXA59 マニュアル

Num Lock 

The number keys in the numeric keypad are active. 

The

alphanumeric character keys in the keypad area are active. 

Caps Lock 

The letters appear in uppercase as you type. The Shift key lowers

the case of typed letters when Caps Lock is on. 

Letters appear in lower case as you type (unless you hold down

the Shift key). 

Scroll Lock 

The screen scrolls differently. (Exactly how it scrolls depends on

the specific application. It has no effect in many applications.) 

Information moves across the display normally.