Sony PCG-R505ELK - Manual (Page 6)

Indicator lights
Light On Off
Hard disk
Data is being read from or written to the hard drive. Do not enter Standby mode or turn off the computer when this
indicator light is on. The hard drive is not being accessed.
Num Lock
The number keys in the numeric keypad are active. The character keys in the keypad area are active.
Caps Lock
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.
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