Lights
Component
Description
(1)
Caps lock light
On: Caps lock is on.
(2)
TouchPad on/off light
●
White: TouchPad is enabled.
●
Amber: TouchPad is disabled.
(3)
Speakers (2)
Produce sound.
(4)
Wireless light
●
On: An integrated wireless device, such as a WLAN device
and/or a Bluetooth® device, is on.
●
Off: All wireless devices are off.
(5)
Power light
●
On: The computer is on.
●
Blinking: The computer is in the Sleep state.
●
Off: The computer is off or in Hibernation.
(6)
Battery light
●
On: A battery is charging.
●
Blinking: A battery that is the only available power source has
reached a low battery level. When the battery reaches a
critical battery level, the battery light begins blinking rapidly.
●
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.
(7)
Drive light
Blinking: The hard drive or optical drive is being accessed.
(8)
Num lock light
On: Num lock is on or the embedded numeric keypad is enabled.
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Chapter 2 External component identification
