Apple MK142LL/A 业主指南
Chapter 5
Safety, handling, and support
45
WARNING:
Your AC cord has a three-wire grounding plug (a plug that has a grounding pin).
This plug fits only a grounded AC outlet. If you’re unable to insert the plug into an outlet
because the outlet isn’t grounded, contact a licensed electrician to replace the outlet with a
properly grounded one. Do not defeat the purpose of the grounding pin.
because the outlet isn’t grounded, contact a licensed electrician to replace the outlet with a
properly grounded one. Do not defeat the purpose of the grounding pin.
Hearing loss. Listening to sound at high volumes may damage your hearing. Background noise,
as well as continued exposure to high volume levels, can make sounds seem quieter than they
actually are. Use only compatible earbuds, headphones, or earpieces with your iMac. Turn on the
audio and check the volume before inserting anything into your ear. For more information about
hearing loss, see
as well as continued exposure to high volume levels, can make sounds seem quieter than they
actually are. Use only compatible earbuds, headphones, or earpieces with your iMac. Turn on the
audio and check the volume before inserting anything into your ear. For more information about
hearing loss, see
WARNING:
To prevent possible hearing damage, do not listen at high volume levels for
long periods.
Repairing. Your iMac doesn’t have any user-serviceable parts, except for the memory, which is
user-replaceable in 27-inch models only. Do not attempt to replace or repair any components
inside your iMac. If your iMac needs service, contact Apple or an Apple Authorized Service
Provider. If you open your iMac or install items other than memory in 27-inch models, you risk
damaging your computer. Such damage isn’t covered by the limited warranty on your iMac.
Navigation. Maps, directions, and location-based apps depend on data services. These data
services are subject to change and may not be available in all areas, resulting in maps, directions,
or location-based information that may be unavailable, inaccurate, or incomplete. Compare
the information provided on iMac to your surroundings and defer to posted signs to resolve
any discrepancies. Do not use these services while performing activities that require your full
attention. Always comply with posted signs and the laws and regulations in the areas where you
are using iMac and always use common sense.
Radio frequency exposure. iMac uses radio signals to connect to wireless networks. For
information about radio frequency (RF) energy resulting from radio signals and steps you can
take to minimize exposure, see
user-replaceable in 27-inch models only. Do not attempt to replace or repair any components
inside your iMac. If your iMac needs service, contact Apple or an Apple Authorized Service
Provider. If you open your iMac or install items other than memory in 27-inch models, you risk
damaging your computer. Such damage isn’t covered by the limited warranty on your iMac.
Navigation. Maps, directions, and location-based apps depend on data services. These data
services are subject to change and may not be available in all areas, resulting in maps, directions,
or location-based information that may be unavailable, inaccurate, or incomplete. Compare
the information provided on iMac to your surroundings and defer to posted signs to resolve
any discrepancies. Do not use these services while performing activities that require your full
attention. Always comply with posted signs and the laws and regulations in the areas where you
are using iMac and always use common sense.
Radio frequency exposure. iMac uses radio signals to connect to wireless networks. For
information about radio frequency (RF) energy resulting from radio signals and steps you can
take to minimize exposure, see
.
Medical device interference. iMac contains components and radios that emit electromagnetic
fields, which may interfere with pacemakers, defibrillators, or other medical devices. Maintain a
safe distance of separation between your medical device and iMac. Consult your physician and
medical device manufacturer for information specific to your medical device. If you suspect iMac
is interfering with your pacemaker or any other medical device, stop using iMac.
Medical conditions. If you have a medical condition that you believe could be affected by using
iMac (for example, seizures, blackouts, eyestrain, or headaches), consult with your physician prior
to using iMac.
Repetitive motion. When you perform repetitive activities such as typing or playing games on
iMac, you may experience discomfort in your hands, arms, wrists, shoulders, neck, or other parts
of your body. If you experience discomfort, stop using iMac and consult a physician.
High-consequence activities. iMac is not intended for use where the failure of the computer
could lead to death, personal injury, or severe environmental damage.
Explosive atmospheres. Charging or using iMac in any area with a potentially explosive
atmosphere, such as areas where the air contains high levels of flammable chemicals,
vapors, or particles (such as grain, dust, or metal powders), may be hazardous. Obey all signs
and instructions.
fields, which may interfere with pacemakers, defibrillators, or other medical devices. Maintain a
safe distance of separation between your medical device and iMac. Consult your physician and
medical device manufacturer for information specific to your medical device. If you suspect iMac
is interfering with your pacemaker or any other medical device, stop using iMac.
Medical conditions. If you have a medical condition that you believe could be affected by using
iMac (for example, seizures, blackouts, eyestrain, or headaches), consult with your physician prior
to using iMac.
Repetitive motion. When you perform repetitive activities such as typing or playing games on
iMac, you may experience discomfort in your hands, arms, wrists, shoulders, neck, or other parts
of your body. If you experience discomfort, stop using iMac and consult a physician.
High-consequence activities. iMac is not intended for use where the failure of the computer
could lead to death, personal injury, or severe environmental damage.
Explosive atmospheres. Charging or using iMac in any area with a potentially explosive
atmosphere, such as areas where the air contains high levels of flammable chemicals,
vapors, or particles (such as grain, dust, or metal powders), may be hazardous. Obey all signs
and instructions.
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