2–8
Maintenance and Service Guide
External component identification
Left-side components
Item
Component
Description
(1)
Power connector
Connects an AC adapter.
(2)
AC adapter light
■
On: The computer is connected to external power.
■
Off: The computer is not connected to external power.
(3)
USB ports (2)
Connect optional USB devices.
(4)
Optical drive
Reads optical discs and, on select models, also writes to optical discs.
(5)
Optical drive light
Blinking: The drive is being accessed.
