Sony PCG-F520 Manual

 Notebook User Guide

&

Indicators

Indicator

Function

Power

Light is green when the power to the computer is turned on. Light is red 

in System Idle mode, and flashes red in System Suspend mode. The light 

turns off when the computer is in System Hibernation mode or powered 

off.

Battery 1

Indicates the status of the battery inserted in the battery bay on the 

left side of the computer.

Battery 2

Indicates the status of the battery inserted in the multipurpose drive 

bay on the right side of the computer.

Hard disk

Lights when data is being read from or written to the hard drive. Do 

not enter System Suspend mode or turn off the computer when this 

indicator light is on.

Light

On

Off

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.