IBM ThinkPad X20, User Manual

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ThinkPad do not's
Ÿ
Do not place your computer closer than 13 cm (5 in.) to any
electrical appliance that generates a strong magnetic field, such
as a motor, a magnet, a TV, a refrigerator, or large audio
speakers.
Ÿ
Do not put an operating cellular phone on the computer. The
phone might cause the computer to malfunction.
Ÿ
Do not hard-mount your computer in a vehicle or anywhere that it
is subject to strong vibration.
Ÿ
Do not crush, drop, or physically punish the external or remov-
able hard disk, diskette, or CD-ROM drive when it is outside your
computer.
Ÿ
Do not press on the middle part of the diskette drive or the
CD-ROM drive.
Ÿ
Do not insert a diskette at an angle. Inserting the diskette at an
angle into the drive can damage the drive.
Ÿ
Do not attach more than one label to a diskette, and do not allow
the label to be come loose. Multiple or loose labels can detach or
tear and then lodge in the drive.
Ÿ
Do not touch the lens on the CD-ROM tray.
Ÿ
Do not close the CD-ROM tray until you hear the CD click into
the center pivot of the CD-ROM drive
Ÿ
Do not touch the surface of a CD; handle the CD only by its
edges.
Ÿ
Do not connect the modem to a PBX (private branch exchange)
or other digital telephone extension line. Your computer can
use only a public-switched telephone network (PSTN). Use of
a phone line other than PSTN can damage your modem. If you
are not sure which kind of phone line you are using, contact your
telephone company. Many hotels or office buildings use digital
telephone extension lines, so check before connecting the tele-
phone cable in such places.
Ÿ
Do not leave the base of your computer in contact with your lap
or any part of your body for an extended period when the com-
puter is functioning or when the battery is charging. Your com-
puter dissipates some heat during normal operation. This heat is
a function of the level of system activity and battery charge level.
Chapter 2. Handling the ThinkPad computer
9