External component identification
2–5
Lights
Item
Component
Function
1
Power lights (2)*
■
On: The computer is on.
■
Blinking: The computer is in the Sleep state.
■
Off: The computer is off or in Hibernation.
2
Battery light
■
On: A battery is charging.
■
Blinking: A battery that is the only available power source has reached a
low battery level or a critical battery level.
■
Off: If the computer is plugged into an external power source, the light is
turned off when all batteries in the computer are fully charged. If the
computer is not plugged into an external power source, the light stays off
until the battery reaches a low battery level.
3
Drive light
■
Blinking: The hard drive or optical drive is being accessed.
■
Amber: HP ProtectSmart Hard Drive Protection has temporarily parked the
internal hard drive.
4
Caps lock light
On: Caps lock is on.
5
Volume mute light
■
White: Computer sound is on.
■
Amber: Computer sound is off.
6
Volume down light
On: The volume scroll zone is being used to decrease speaker volume.
7
Volume up light
On: The volume scroll zone is being used to increase speaker volume.
8
Treble/bass down light
On: The treble or bass scroll zone is being used to decrease the level of treble
or bass in the audio.
9
Treble/bass up light
On: The treble or bass scroll zone is being used to increase the level of treble
or bass in the audio.
-
Wireless light
■
Blue: An integrated wireless device, such as a wireless local area network
(WLAN) device and/or a Bluetooth device, is on.
■
Amber: All wireless devices are off.
q
Num lock light
On: Num lock is on or the embedded numeric keypad is enabled.
*The 2 power lights display the same information. The light on the power button is visible only when the computer is open. The
power light on the front of the computer is visible whether the computer is open or closed.
