Sony PCG-F540 Primary User Manual page 36

Power
Battery 1
Battery 2
Hard disk
Num Lock The number keys in the
numeric keypad 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.
Scroll Lock The screen scrolls differently.
(Exactly how it scrolls
depends on the specific
application. It has no effect in
many applications.)
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.
Indicates the status of the battery inserted in the battery
bay on the left side of the computer.
Indicates the status of the battery inserted in the
multipurpose drive bay on the right side of the
computer.
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.
The alphanumeric character
keys in the keypad area are
active.
Letters appear in lower case as
you type (unless you hold
down the Shift key).
Information moves across the
display normally.