Apple IMAC 21.5 INCH 2012 Important Product Information Guide

iMac

Important Product
Information Guide

This Important Product Information Guide contains safety,
handling, disposal and recycling, regulatory, and software
license information, as well as the one-year limited warranty
for your iMac. Your iMac model might not include all of the
features described in this document.

 Read all safety information and operating

instructions below before using iMac to avoid

±

injury. For a downloadable version of the iMac
Quick Start guide and the latest version of this
Important Product Information Guide, visit:

support.apple.com/manuals/imac

Important Safety and Handling
Information

WARNING: Failure to follow these safety instructions could
result in re, electric shock, or other injury or damage to
iMac or other property.

Proper handling Set up your iMac on a stable work surface.
Never push objects into the ventilation openings.

Water and wet locations Keep your iMac away from sources
of liquid, such as drinks, washbasins, bathtubs, shower stalls,
and so on. Protect your iMac from dampness or wet weather,
such as rain, snow, and fog.

Power Unplug the power cord (by pulling the plug, not the
cord) and disconnect the ethernet cable or phone cord if any
of the following conditions exist:

 You want to add memory (memory is user-replaceable in

27-inch models only)

 The power cord or plug becomes frayed or otherwise

damaged

 You spill something into the case
 Your iMac is exposed to rain or excess moisture
 Your iMac has been dropped or the case has been

damaged

 You suspect that your iMac needs service or repair
 You want to clean the case (use only the recommended

procedure described later in this document)

Important: The only way to turn o power completely is to
unplug the power cord. Make sure at least one end of the
power cord is within easy reach so that you can unplug your
iMac when you need to.

Power specications (21.5-inch model):

 Voltage: 100 to 240 V AC
 Current: 3 A, maximum
 Frequency: 50 to 60 Hz

Power specications (27-inch model):

 Voltage: 100 to 240 V AC
 Current: 4 A, maximum
 Frequency: 50 to 60 Hz

WARNING: Your AC cord has a three-wire grounding
plug (a plug that has a third, grounding pin). This plug

ts only a grounded AC outlet. If you are 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 outlet. Do not defeat the purpose of

the grounding plug.

Hearing damage Permanent hearing loss may occur if
earbuds or headphones are used at high volume. You can
adapt over time to a higher volume of sound that may
sound normal but can be damaging to your hearing.
If you experience ringing in your ears or mued speech,
stop listening and have your hearing checked. The louder
the volume, the less time is required before your hearing
could be aected. Hearing experts suggest that to protect
your hearing:

 Limit the amount of time you use earbuds or headphones

at high volume.

 Avoid turning up the volume to block out noisy

surroundings.

 Turn the volume down if you can’t hear people speaking

near you.

High-risk activities This computer is not intended for use
in the operation of nuclear facilities, aircraft navigation or
communications systems, air trac control systems, or for any
other uses where a failure of the computer system could lead
to death, personal injury, or severe environmental damage.

Operating environment Operating your iMac outside these
ranges may aect performance:

Operating temperature: 50° to 95° F (10° to 35° C)

Storage temperature: -4° to 113° F (-20° to 45° C)

Relative humidity: 5% to 90% (noncondensing)
Operating altitude: 0 to 10,000 feet (0 to 3048 meters)

Do not operate your iMac in areas with signicant amounts
of airborne dust, or smoke from cigarettes, cigars, ashtrays,
stoves, or replaces, or near an ultrasonic humidier using
unltered tap water. Tiny airborne particles produced by
smoking, cooking, burning, or using an ultrasonic humidier
with unltered water may, in rare instances, enter the
ventilation openings of your iMac and, under certain
conditions, result in a slight haze on the inside surface of the
glass panel that covers the iMac display.

Turning on your iMac Never turn on your iMac unless all
of its internal and external parts are in place. Operating your
iMac when parts are missing may be dangerous and may
damage your iMac.

Carrying your iMac Before you lift or reposition your iMac,
shut it down and disconnect all cables and cords connected
to it. To lift your iMac, hold its sides.

Using connectors and ports Never force a connector into
a port. When connecting a device, make sure the port is
free of debris, that the connector matches the port, and
that you have positioned the connector correctly in relation

to the port.

Storing your iMac If you are going to store your iMac
for an extended period of time, keep it in a cool location
(ideally, 71° F or 22° C).

Do Not Make Repairs Yourself

Your iMac doesn’t have any user-serviceable parts, except
for memory, which is user-replaceable in 27-inch models
only. Do not attempt to open your iMac. If your iMac needs
service, contact an Apple Authorized Service Provider or
Apple for service.

If you open your iMac or install items other than memory in
27-inch models, you risk damaging your equipment. Such
damage isn’t covered by the limited warranty on your iMac.

WARNING: Never push objects of any kind into this
product through the ventilation openings in the case.
Doing so may be dangerous and damage your computer.

Cleaning your iMac

Follow these guidelines when cleaning the outside of your
iMac and its components:

 Shut down your iMac and disconnect all cables.
 Use a damp, soft, lint-free cloth to clean the exterior

of your iMac. Avoid getting moisture in any openings.
Do not spray liquid directly on your iMac.

 Don’t use aerosol sprays, solvents, or abrasives.

Cleaning Your iMac Display

Use a clean, soft, lint-free cloth to clean the display.

To clean your iMac display, do the following:

 Shut down your iMac and disconnect all cables.
 Dampen a clean, soft, lint-free cloth with water only,

and then wipe the screen. Do not spray liquid directly

on the screen.

Cleaning Your Mouse

To clean the outside of your mouse, use a lint-free cloth that’s
been lightly moistened with water. Don’t get moisture in any
openings or use aerosol sprays, solvents, or abrasives.

Understanding Ergonomics

Here are some tips for setting up a healthy work
environment.

Keyboard

When you use the keyboard, your shoulders should be
relaxed. Your upper arm and forearm should form an
approximate right angle, with your wrist and hand in roughly

a straight line.

Change hand positions often to avoid fatigue. Some
computer users might develop discomfort in their hands,
wrists, or arms after intensive work without breaks. If you
begin to develop chronic pain or discomfort in your hands,
wrists, or arms, consult a qualied health specialist.

Mouse

Position the mouse at the same height as the keyboard and
within a comfortable reach.

Chair

An adjustable chair that provides rm, comfortable support
is best. Adjust the height of the chair so your thighs are
horizontal and your feet are at on the oor. The back of the
chair should support your lower back (lumbar region). Follow
the manufacturer’s instructions for adjusting the backrest to
t your body properly.

You might have to raise your chair so that your forearms and
hands are at the proper angle to the keyboard. If this makes
it impossible to rest your feet at on the oor, you can use
a footrest with adjustable height and tilt to make up for any
gap between the oor and your feet. Or you can lower the
desktop to eliminate the need for a footrest. Another option
is to use a desk with a keyboard tray that’s lower than the
regular work surface.

Display

Arrange the display so that the top of the screen is slightly
below eye level when you’re sitting at the keyboard. The best
distance from your eyes to the screen is up to you, although
most people seem to prefer 18 to 28 inches (45 to 70 cm).

Position the display to minimize glare and reections on
the screen from overhead lights and nearby windows.
The stand lets you set the display at the best angle for
viewing, helping to reduce or eliminate glare from lighting
sources you can’t move.

More information about ergonomics is available on the web:
www.apple.com/about/ergonomics

Apple and the Environment

Apple Inc. recognizes its responsibility to minimize the
environmental impacts of its operations and products.

More information is available on the web:
www.apple.com/environment

Learning More, Service, and Support

Do not attempt to open your iMac, except to install memory,
which is user-replaceable in 27-inch models only. If you
need service, contact Apple or take your iMac to an Apple
Authorized Service Provider. You can nd more information
about your iMac through Help Center, online resources,
System Information, and Apple Hardware Test.

Help Center

You can often nd answers to your questions, as well as
instructions and troubleshooting information, in Help Center
on your Mac. Click the Finder icon, click Help in the menu bar,

and choose Help Center.

Online Resources

For online service and support information, go to
www.apple.com/support and choose your country from the

pop-up menu. You can search the AppleCare Knowledge

Base, check for software updates, or get help from Apple’s
discussion forums.

System Information

To get information about your iMac, use System Information.
It shows you what hardware and software is installed, the
serial number and operating system version, how much
memory is installed, and more. To open System Information,
choose Apple () > About This Mac from the menu bar and
then click More Info.

Apple Hardware Test

You can use the Apple Hardware Test (AHT) application

to help determine if there’s a problem with one of the
computer’s components, such as the memory or processor.

To use Apple Hardware Test: Disconnect all external devices
from your computer, except the keyboard and mouse. If you
have an Ethernet cable connected, disconnect it. Restart
your computer while holding down the D key. When the
AHT chooser screen appears, select the language for your
location. Press the Return key or click the right arrow button.
When the AHT main screen appears (after about 45 seconds),
follow the onscreen instructions. If AHT detects a problem, it
displays an error code. Make a note of the error code before
pursuing support options. If AHT doesn’t detect a hardware
failure, the problem might be software related.

Important: If Apple Hardware Test doesn’t appear after
restarting, hold down the Command (x), Option, and D keys
and restart the computer to access Apple Hardware Test from
the Internet. Be sure to reconnect your Ethernet cable. Your
computer must be connected to a network that has access
to the Internet.

AppleCare Service and Support

Your iMac comes with 90 days of technical support and one
year of hardware repair warranty coverage at an Apple Retail
Store or an Apple-authorized repair center, such as an Apple
Authorized Service Provider. You can extend your coverage by
purchasing the AppleCare Protection Plan. For information,
visit www.apple.com/support/products or visit the website
address for your country listed later in this section.

If you need assistance, AppleCare telephone support
representatives can help you with installing and opening
applications, and troubleshooting. Call the support center
number nearest you (the rst 90 days are complimentary).
Have the purchase date and your iMac serial number ready
when you call.

Your 90 days of complimentary telephone support begins on
the date of purchase.

Australia: (61) 1-300-321-456
New Zealand: 00800-7666-7666
Singapore: 800-186-1087 or (65) 6835-1812
Hong Kong: (852) 2112-0099
Malaysia: 1-800 803-638
Brunei: Dial 800-1111 rst, then dial 800-708-5413
www.apple.com/support/country
Telephone numbers are subject to change, and local and

national telephone rates may apply. A complete list is
available on the web: www.apple.com/au/support/contact