Sony PCG-GRX570 Manuel

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.