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Maintenance and Service Guide 1–7
Table 1-1
Front Components
Item Component Function
1Power light ■ On: Computer is turned on.
■ Off: Computer is off or in hibernation.
■ Blinking: Computer is in standby.
2Battery light ■ On: A battery is charging or is close to
full charge capacity.
■ 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 condition.
■ Blinking: A battery that is the only
available power source has reached a
low-battery condition. When the battery
reaches a critical low-battery condition,
the battery light begins blinking quickly.
3 Drive light On or blinking: The internal hard drive or
an optical drive is being accessed.
4 Speakers Produce stereo sound.
5 Display release button Opens the computer.