Dell 201S Microscope & Magnifier User Manual


 
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Do not step on or stand on any system/component when servicing other sys-
tems/components in a rack.
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Observe the following guidelines when working with options:
Do not connect or use a modem or telephone during a lightning storm. There
may be a risk of electrical shock from lightning.
Never connect or use a modem or telephone in a wet environment.
Do not plug a modem or telephone cable into the network interface controller
(NIC) receptacle.
Disconnect the modem cable before opening a product enclosure, touching or
installing internal components, or touching an uninsulated modem cable or jack.
Do not use a telephone line to report a gas leak while you are in the vicinity of the
leak.
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Observe the following precautions for laser devices:
Do not open any panels, operate controls, make adjustments, or perform proce-
dures on a laser device other than those specified in the products
documentation.
Only authorized service technicians should repair laser devices.
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Before you remove the computer covers, perform the following steps in the sequence
indicated.
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1. Turn off your computer and any devices.
2. Ground yourself by touching
an unpainted metal surface on the chassis, such as
the metal around the card-slot openings at the back of the computer, before
touching anything inside your computer.