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Troubleshooting
Maintenance and Service Guide 2–5
External Device Problems and Solutions
Problem Possible Cause Solution
A new device is not
recognized as part of
the system.
The computer may
be properly aligned,
but is not fully seated
or docked in the
docking station.
Press the eject button all the
way in to eject the computer.
Lift the computer away from
the docking station. Then
realign the computer visual
alignment indicator with the
indicator on the docking
station, and reconnect the
computer. Ensure that the
computer is properly aligned
and seated, and fully docked
by gently pressing down on
the computer until you hear a
click. If accessories are
attached, they should now
be recognized by the
system.
The device cable or
power cord is loose.
■ Ensure that all cables are
securely connected to the
device and the docking
station.
■ Ensure that all power
cords are securely
connected to the device
or docking station and
to an AC outlet.
The device was
connected while the
system was on.
Turn off the computer, turn
on the device (if applicable),
and then restart the
computer.
Cabling is incorrect. Ensure that the device cable
is in the correct connector on
the docking station.
You may need to
install device drivers
on the computer.
Install drivers according to
the device manufacturer’s
instructions.