Ergonomic Computing Habits; When Working Inside Your Computer - Dell Latitude C840 Guía De Información Del Sistema

When Using Your Computer (continued)
• Clean the display with a soft, clean cloth and water. Apply the water to the cloth; then
stroke the cloth across the display in one direction, moving from the top of the display to
the bottom. Remove moisture from the display quickly and keep the display dry. Long-
term exposure to moisture can damage the display. Do not use a commercial window
cleaner to clean your display.
• If your computer gets wet or is damaged, follow the procedures described in "If Your
Computer Gets Wet" or "If You Drop or Damage Your Computer" in the online User's
Guide. If, after following these procedures, you confirm that your computer is not
operating properly, contact Dell (see the User's Guide for the appropriate contact
information).

Ergonomic Computing Habits

CAUTION: Improper or prolonged keyboard use may result in injury.
CAUTION: Viewing the display or external monitor screen for extended periods of
time may result in eye strain.
For comfort and efficiency, observe the ergonomic guidelines in your User's Guide when setting
up and using your computer.

When Working Inside Your Computer

Before removing or installing memory modules, Mini PCI cards, or modems, perform the
following steps in the sequence indicated.
NOTICE: The only time you should ever access the inside of your computer is when you are
installing memory modules, a Mini PCI card, or a modem.
NOTICE: Wait 5 seconds after turning off the computer before disconnecting a device or removing
a memory module, Mini PCI card, or modem to help prevent possible damage to the system board.
Shut down your computer and turn off any attached devices.
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Disconnect your computer and devices from electrical outlets to reduce the potential for
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personal injury or shock. Also, disconnect any telephone or telecommunication lines from
the computer.
Remove the main battery from the battery bay and, if necessary, the second battery from
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the module bay.
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System Infor mation Guide