10 - Computer Basics
Note: Adjust only those controls that are covered by the operating
instructions, since improper adjustment of other controls may result in
damage and will often require extensive work by a qualified technician
to restore the product to normal condition.
Health precautions
• The computer and accessories may contain small parts. Keep them out
of the reach of small children.
• If you work or play for hours at a time, then make sure you take regular
breaks. Look away from the computer's screen once in a while. Do not
use your computer if you are tired.
• To protect your hearing, when using speakers or headphones, increase
volume gradually until you can hear clearly and comfortably; do not
increase the volume level after your ears have adjusted. Do not listen to
high volumes for extended periods. Do not increase the volume to block
out noisy surroundings; decrease the volume if you cannot hear people
speaking near you.
• Ensure that the computer’s ventilation slots and openings are never
obstructed or covered. Do not place the computer on a soft surface
(such as a carpet, chair or bed) that may block ventilation slots.
• Do not push objects of any kind into ventilation or case slots as they
may touch dangerous voltage points or short-out parts that may result in
a fire or electric shock.
• Some disorders of the hands, wrists, arms, neck, shoulders, legs and
back may be associated with, or aggravated by certain repetitive
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