Dell SmartStep 200N, Replacement Manual

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8 Before You Remove or Install Parts
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Preparing to Work Inside the
Computer
CAUTION: Only a certified service technician should perform
repairs on your computer. Damage due to servicing that is not
authorized by Dell is not covered by your warranty. Read and
follow the safety instructions in the Dell
Owner’s Manual
.
NOTICE: To avoid damaging the computer, perform the following steps before
you begin working inside the computer.
1
Ensure that the work surface is flat and clean to prevent scratching the
computer cover.
2
Save any work in progress and exit all open programs.
3
Shut down the computer and turn off all attached devices.
HINT: Ensure that the
computer is off and not in
a power management
mode. If you cannot shut
down the computer using
the computer operating
system, press and hold the
power button for 4
seconds.
4
Disconnect the computer from the electrical outlet.
5
To avoid possible damage to the system board, wait 10 to 20 seconds
and then disconnect any attached devices.
6
Disconnect all other external cables from the computer.
7
Remove any installed PC Cards or blanks from the PC Card slot.
8
Close the display and turn the computer upside down on a flat work
surface.
NOTICE:
To avoid damaging the system board, you must remove the battery
before you service the computer.