External component identification
Maintenance and Service Guide
2–5
Lights
✎
Your computer may look slightly different from the illustration in this section.
Item
Component
Description
(1)
Caps lock light
On: Caps lock is on.
(2)
Info Center/QuickLook light
■
On: The computer is on.
■
Blinking (5 times):
❐
When the computer is on, press the button to launch Info Center.
❐
When the computer is off or in Hibernation, press the button to launch
QuickLook.
■
Off: The computer is off or in the Sleep (Standby in Windows XP) or
Hibernation state.
(3)
Wireless light
■
Blue: An integrated wireless device, such as a WLAN device and/or a
Bluetooth device, is on.
■
Amber: All wireless devices are off.
(4)
Volume mute light
■
Turquoise: Computer sound is on.
■
Amber: Computer sound is off.
(5)
Volume down light
Blinking: The volume scroll zone is being used to decrease speaker volume.
(6)
Volume up light
Blinking: The volume scroll zone is being used to increase speaker volume.
(7)
Power light
■
On: The computer is on.
■
Blinking: The computer is in the Sleep state (Standby in Windows XP).
■
Off: The computer is off or in Hibernation.
