Samsung NV30CH0Q0B - Manual (Page 30)

Getting Started 17
Reading the Status Indicators
Status indicators show the status of computer functions.
Num Lock Turns on when the numeric keypad is activated.
Caps Lock Turns on when all alphabet characters you type will be in upper case.
Scroll Lock Turns on when it is set to scroll the screen up and down while the cursor
position does not change in some applications.
Hard disk drive Blinks when the hard disk drive is in operation.
CD Blinks when the CD drive is in operation.
Wireless LAN Turns on when the Wireless LAN is turned on.
(This LED does not work for the models without wireless LAN function.)
Battery Turns green - when the battery is fully charged, or when the battery is not
installed.
Turns amber - when the battery is being charged.
Blinks - when the battery is not properly installed.
Power Turns green - when the computer is turned on.
Blinks - when the computer is in Standby mode or low-noise mode.