Atari 1200 XL User manual

THE ATARI 1200XL
HOME COMPUTER
OWNER'S GUIDE
£
&

ATARI welcomes you to
the fascinating world of
home computing.
Your new ATARI
1200XL Home Computer
is one of the most power-
ful and versatile small
computers you can buy
for the home. It's aprac-
tical computer with a
functional, low-profile
design that complements
any home environment.
The information in this
guide will make your
transition into the world
of home computing
smooth and enjoyable.
First, you'll find easy-to-
follow instructions for
connecting your ATARI
1200XL Computer to your
television set—it's no
more complicated than
hooking up an antenna to
your TV. Then you'll
learn what to do after
you turn the computer
on. Your ATARI 1200XL
Computer's key features,
including its keyboard
and built-in diagnostic
self-tests, are described
in detail.
"Where To Go From
Here? There's aWorld
of Possibilities" (page 13)
offers valuable informa-
tion that will help you
pick accessories and
ready-to-use programs
for your new computer.
You'll also find acopy
of the latest ATARI cata-
log packed with your
ATARI 1200XL Com-
puter. The ATARI cata-
log is an excellent guide
to the world of ATARI
Home Computer
products.
HPOWER »_-!
ATARI 1200
I^_z£ _i* Is

YOUR ATARI 1200XL HOME COMPUTER CONSOLE 3
CONNECTING YOUR ATARI 1200XL HOME COMPUTER TO YOUR TELEVISION .... 5
PUTTING YOUR ATARI 1200XL HOME COMPUTER THROUGH ITS SELF-TESTS 7
THREE WAYS TO USE THE KEYBOARD 9
WHERE TO GO FROM HERE? THERE'S AWORLD OF POSSIBILITIES ,,.,13
BUILD THE SYSTEM YOU WANT 15
GETTING TOGETHER WITH OTHER ATARI HOME COMPUTER OWNERS 17
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OPTION and SELECT Keys
These keys let you choose among
the variations within aprogram
Special-Function Indicators
These light up when your computer's
keyboard has been deactivated (LI) or
is in the international character set (L2)
Power On Indicator
Aquick glance lets you see
whether your computer is on or off
Power On/Off Switch
RESET Key
Stops aprogram, then restarts it
from the beginning
Cartridge Slot
Plug-in cartridges
provide quick and easy
program loading
Joystick or Paddle Controller Jacks
One or two players can challenge
the computer—or each other-
through these connectors
CONTROL Key
Controls a variety of features
when pressed simultaneously
with another key
ESC Key
Moves you from one menu to another
in many ATARI programs
3

TV Channel Select Switch
Lets you pick between
channel 2or 3for the
clearest picture possible
Television Monitor Jack
Provides access to amonitor's
superior color reproduction
Serial Input/Output Ports
Lets you connect peripheral equipment
such as disk drives, program recorders,
or printers to your computer
Special-Function Keys
Many of your computer's operations—single-
key cursor movement, for example—are
controlled by Fl, F2, F3, and F4
BREAK Key
Interrupts certain functions
of the computer
CAPS Key
Lets you type
all uppercase letters
t, i, *-, •* Keys
When used in conjunction with CONTROL,
these keys move the cursor up, down,
left, and right
HELP Key
Initiates your computer's
diagnostic self- tests

Your ATARI 1200XL
Home Computer is easy
to set up. It comes with
everything you need to
get your system running:
aTV Switch Box and con-
necting cable to connect
the computer to your
television set and an AC
Power Adapter. And the
only tool you'll need is a
screwdriver.
The ten easy steps on
these pages show you
how to connect your
ATARI 1200XL Home
Computer to your televi-
sion set.
1Disconnect the
present antenna or
cable TV line from your
television set and recon-
nect it to the side of the
TV Switch Box labeled
ANTENNA. If the antenna
line is aflat, twin-lead
cable, connect it to the
terminals marked 300
OHM on the switch box.
If it's around cable—
a
coaxial cable from an ex-
ternal antenna or athin
cable from abuilt-in
antenna—attach it to the
threaded connector
marked 75 OHM.
2Connect the short,
twin-lead cable on
the TV Switch box to the
VHF connection on your
TV set. If the VHF con-
nection on your set has
two screw-type ter-
minals, secure the two
cable leads to the ter-
minals. If the VHF con-
nection on your TV is a
round threaded terminal,
the TV Switch Box cable
must be attached to the
adapter supplied with
your TV set.
First, connect the twin
leads of the TV Switch
Box cable to the two
screw-type terminals on
the adapter. Then slip or
screw the adapter onto
the threaded terminal on
your TV set, making sure
that the pinlike projection
in the adapter makes
contact. (If no VHF
adapter was supplied
with your TV set, you can
purchase one at alocal
video store.)
3Peel off the protec-
tive cover from the
self-adhesive square on
the TV Switch Box and
press the switch box to
the back of your televi-
sion set so it sticks to the
cabinet.
If you've connected the
TV Switch Box to aflat,
twin-lead cable, you're
now finished installing
the TV Switch Box; go to
step 5.
4If you've connected
the TV Switch Box
to around (75-OHM)
cable and you did not
use the adapter de-
scribed in step 2, you
may need to adjust the
antenna terminal on your
TV set so it can accept
the 300- OHM signal from
the TV Switch Box. Make
the necessary adjust-
ments as shown in the
illustrations.
If the back of your set
looks like this, push the
switch to the 300-OHM
(300 0) position.
AS

If it looks like this,
loosen the screws hold-
ing the U-shaped slider
and move the slider to
the position marked 300
OHM (or 300 Q).
If it looks like this, in-
sert the tiny wire into the
hole in the center of the
antenna terminal.
5Move the sliding
switch on the TV
Switch Box to the COM-
PUTER position. (Don't
forget to slide this switch
back to the TV position
when you're finished us-
ing your computer and
want to watch regular TV
programming.)
7Connect the AC
Power Adapter to
an electrical outlet. The
cable with the round
plug slips into the
POWER IN jack on the
back of your computer.
The standard two-
pronged plug goes into a
wall outlet.
5Plug one end of the
connecting cable
into the terminal marked
COMPUTER on the TV
Switch Box. Plug the
other end into the jack
labeled SWITCH BOX on
your computer.
8Turn on your TV
set and tune it to
Channel 2or 3—which-
ever channel has the
weakest signal in your
area.
9Set the Channel
Select Switch on
the back of the computer
console (it's next to the
POWER IN jack) to the
same channel. After you
turn on your computer,
you may need to adjust
the fine-tuning knob on
your TV set to improve
reception.
WYour ATARI
1200XL Home
Computer is now ready
to be turned on. The
mam power switch is
located on the left side of
the computer console be-
hind the cartridge slot. A
few seconds after you
turn your computer on,
you'll be greeted by the
word ATARI pulsating
with arainbow of rapidly
changing colors.
If you leave the compu-
ter on one display long
enough, you may notice
the colors on your TV
screen changing periodi-
cally. This is normal and
occurs to protect your
TV set.
Please note, also, that
when you turn off your
ATARI 1200XL Computer
to reload aprogram, you
must wait 3to 5seconds
before turning it back on.
ATARI
If the word ATARI
doesn't appear when you
turn your computer on,
check over all the pre-
vious steps. Make sure
that all cords and cables
are plugged securely
and that power is coming
into the system. (The red
Power ON/OFF light
located at the far left of
the console above the
keyboard should be on.)
Try adjusting the fine-
tuning knob on your TV.
If you still don't get the
proper display, your
computer may need ser-
vicing. For the location of
the nearest ATARI Fac-
tory Authorized Service
Center, contact your
ATARI retailer or call
ATARI Customer Service
toll-free at the number
listed on your warranty
card.
A6

r
Whenever you turn your
new ATARI 1200XL
Computer on, it
automatically tests
itself—then lets you dou-
ble check it with aseries
of built-in self-tests that
help ensure proper
operation.
These tests check to
see if the computer's
memory, sound and col-
ors, and keyboard are
working properly. Before
you run any software you
purchased for your
ATARI 1200XL Computer,
you should remove any
cartridge, and put the
computer through the en-
tire self-test routine.
Thereafter, you'll need
to run the self-tests only
periodically, because
each time your computer
is "powered up," the
computer runs aquick
self-test on its memory
circuits. This test ac-
counts for the slight
delay that occurs be-
tween the moment you
turn the computer on and
when the word ATARI
appears on the TV
screen.
If the memory circuits
ever fail the test, the first
thing you'll see on your
TV screen are the words
MEMORY TEST and sev-
eral red and green
squares and rectangles.
(Any external software-
cartridge, diskette or
cassette—that you try to
plug or load into the
computer will be
ignored.)
This means the com-
puter needs service, and
you should contact your
ATARI Home Computer
retailer or Factory
Authorized Service
Center.
The HELP key lets you
initiate your computer's
self-tests. Pressing HELP
once while the word
ATARI is on your TV
screen displays the self-
test options-ALL TESTS,
MEMORY, AUDIO-
VISUAL, or KEYBOARD
—on your screen.

Press SELECT to
choose which test you
want, then press START
to begin the test. Press
HELP asecond time to
return to the SELF-TEST
menu,
When you select ALL
TESTS, the computer first
checks its memory cir-
cuits. The audio-visual
and keyboard tests fol-
low automatically, with
the computer generating
random input to the key-
board during the latter
test.
Each self-test is
repeated indefinitely by
your computer unless
you press HELP to return
to the menu or RESET to
stop all tests and return
to the word ATARI.
When you select ALL
TESTS, all three tests are
run repeatedly until you
press HELP or RESET.
The HELP key also
performs other functions
with some ATARI soft-
ware products. Consult
the individual program
user's guide for its exact
function.
When you select the
MEMORY self-test,
you're telling your com-
puter to check both its
Read-Only Memory
(ROM) and Random-
Access Memory (RAM)
circuits.
ROM is permanent,
noneraseable memory in
which your computer's
operating system is
stored. If anything is
wrong with it, your com-
puter may not operate
properly. RAM is the
memory your computer
has available for pro-
grams you load into it or
write yourself.
Two rectangular color
bars appear on your TV
screen while the ROM is
being tested. The bars
turn green if ROM is
found to be in good con-
dition. If either color bar
turns red at the end of
the test, your computer's
ROM is malfunctioning,
and you should contact
your ATARI Home Com-
puter retailer or Factory
Authorized Service
Center.
During the RAM test,
48 small color squares
appear one by one on
your screen. Each
square represents apor-
tion of RAM that is ac-
tively being used by
your computer (the
remaining 16K is acces-
sible only with certain
software programs). As
each section of RAM is
tested, the corres-
ponding square turns
white, then green if the
section is good or red if
the section is bad, and
the LI and L2 indicators
on the computer go on
and off alternately.
It is important that all of
the squares turn green.
This means the RAM in
your computer is func-
tioning properly.
The AUDIO-VISUAL self-
test checks your ATARI
1200XL Home
Computer's four sound
voices and color capabil-
ity. During the test, a
musical staff and treble
clef appear on the
screen above the num-
ber of the voice under
test. Six notes are played
and displayed sequen-
tially on your TV screen.
The six notes are
repeated once for each
music voice.
If avoice number ap-
pears but you don't hear
music, or if one of the six
notes played sounds off-
key, that voice is not
working properly.
The colors displayed
should be consistent from
test to test.
Akeyboard layout is dis-
played on your TV
screen when you initiate
this test. When you press
akey on your keyboard,
the corresponding key
on the screen flashes in
inverse video (a blue
character on awhite
background) and anote
sounds. The space bar
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and special-function keys
are already in inverse
video, so pressing one of
them changes the match-
ing key on the screen to
normal video. If pressing
akey fails to evoke a
response on the TV
screen, that key is not
working.
The SHIFT and CON-
TROL keys flash only
when pressed
simultaneously with
another key.
Please note that the
BREAK, HELP, and
RESET keys do not flash
or sound anote when
pressed. HELP returns
you to the SELF-TEST
menu while RESET takes
you back to the word
ATARI.
8

IV ith afew exceptions,
your ATARI 1200XL
Computer keyboard's
layout—the numbers, let-
ters, and symbols—is
identical to that of a
conventional typewriter.
You'll quickly discover,
however, that the key-
board of your ATARI
1200XL Home Computer
has awide range of addi-
tional capabilities. You
can change text at will
on your screen, draw
with special graphics
characters, and display
certain international lang-
uage characters on your
TV screen.
The next 4pages de-
scribe the various ways
you can employ the
special features of the
keyboard to make the
most efficient use of your
ATARI 1200XL Home
Computer. You'll want to
keep this guide handy
for future reference
when you're working
with specific programs.
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If you've used a
typewriter, you'll know
how to use the keyboard
of your ATARI 1200XL
Computer. The SHIFT
key capitalizes letters,
RETURN moves the cur-
sor to the left margin,
and TAB moves the cur-
sor quickly across your
screen to predetermined
stops.
.4 9
Beyond these basics,
there are keys that can
unlock other powers
within your ATARI
1200XL Computer. The
CONTROL and SHIFT
keys play important roles
in screen editing and in
generating both graphics
and international
characters. They can
help you move the cur-
sor, delete or insert in-
dividual characters or
entire sentences, or
change from uppercase
to lowercase letters.
The chart on this page
describes the function of
each special key and
details the various com-
binations of keys used to
edit programs, words, or
paragraphs, to move the
cursor, and to change
the way information is
displayed on the screen.
Since the standard key
functions are sometimes
redefined by certain pro-
grams, always consult
your program user's
guide for further help.
The white square you
see on the screen is the
cursor; it shows you
"where you are" on the
display.
When you use CON-
TROL or SHIFT mcom-
bination with another
key, press the two keys
simultaneously.

RESET HELP
Stops the computer in the
middle of what it's doing
and restarts the program
from the beginning.
START
Usually tells the computer to
begin running agame or
program; refer to the in-
dividual program instruc-
tions for its exact function.
SELECT
Often used to select one of
several applications within a
program; its function varies
from program to pro-
gram—refer to the in-
dividual program instruc-
tions for its exact use.
F1
or (control!
Moves the cursor
|
jtiup one line without
Llaaijfl changing the pro-
gram or display.
mMoves the cursor
down one line.
Moves the cursor
one space to the
left.
F4
CONTROLor
Moves the cursor
one space to the
right.
Runs your ATARI 1200XL
Computer through aseries
of self-tests when the word
ATARI is on the TV screen.
Other functions depend on
the program in use—refer to
the individual program m
slructioiis
Video mode Usually swit-
ches the TV display of
entered text from normal to
inverse video (blue char-
acter on white background)
and back again. (With some
ATARI software products,
this key is referred to as the
Akey).
BREAK
Usually interrupts whatever
function the computer is
performing; refer to in-
dividual program instruc-
tions for its exact function.
ESC
Depends on the program;
for example, pressing ESC
may be used to take you
from one menu to another.
CONTROL insert!
Allows you to insert aspace
in some programs. Charac-
ters may be inserted by typ-
ing over the inserted space.
Moves the cursor back one
space, deleting what was
typed. If held down, it con-
tinues deleting characters.
Deletes from the position of
the cursor to the beginning
of aline in some programs.
Freezes the TV display
produced when you list a
program. This allows the
program to be read easier.
Press CONTROL 1asecond
time to restart the program
list.
CONTROL 1
Sounds abuzzer
Marks the end-of-file for in-
put from the keyboard,
SHIFT INSfc'R
Inserts one program or text
line at atime.
F1
Deactivates the computer
keyboard (LI is on when the
keyboard is deactivated).
This lets you leave the com-
puter on without worrying
about anyone else changing
your work. Press CONTROL
Fl asecond time to
reactivate the keyboard.
F2
Turns off the computer's
output to your TV screen,
which allows the 1200XL to
work about 25 percent
faster. Press any key except
SHIFT, BREAK, CONTROL,
OPTION, START, or
SELECT to turn the screen
display on again.
CONTROL F3
Deactivates the typewriter
key-click audio output to
your TV or monitor speaker.
Other program-generated
sounds will still be pro-
duced. Press CONTROL F3
asecond time to turn the
key-click sound back on.
CONTROL! F4
Switches the TV display to
the international language
characters. See page 12,
"International Character
Set," for details. Press
CONTROL F4 asecond time
to return to the regular
keyboard output.
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line the cursor is on.
CAPS!
Alternates the keyboard
output between all upper
and lowercase letters. In
some programs, you must
press SHIFT CAPS while
others do not allow you to
switch between the two (up-
percase only).
CONTR (cAPsl
Locks CONTROL mthe
"down" position. Press
SHIFT to unlock.
j
(SHIFT IF1
Moves the cursor to the up-
per left corner of the screen
(the "home" position).
F2
Moves the cursor to the
lower left corner of the
screen.
SHIFT F3
Moves the cursor to the
beginning of the line it's
currently on.
F4
Moves the cursor to the end
of the line it's currently on.
10

il variety of graphics
characters is built into
your ATARI 1200XL Com-
puter's keyboard. Press-
ing CONTROL and F4
simultaneously switches
your display between the
graphics and interna-
tional characters.
Graphics characters
allow you to build
graphs, design charts,
and draw pictures. The
chart on this page shows
the 29 characters
available and the key
you must press—in com-
bination with CON-
TROL—to display each
one.
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Aninternational
language character set is
built into the keyboard of
your ATARI 1200XL Com-
puter. Pressing CON-
TROL and F4
simultaneously switches
your computer's display
between the international
and graphics characters
(see page 1l).The chart
on this page shows the
international characters
available and the key
you must press—in com-
bination with CON-
TROL—to display each
one.
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Without software, com-
puters are little more
than elaborate electronic
gadgets.
It is software—the step-
by-step list of instructions
also known as apro-
gram—that adapts your
computer's abilities to a
specific job, whether it's
storing names and ad-
dresses, becoming your
personal bookkeeper, or
giving you avideo ar-
cade at home.
It's up to you to decide
which ready-to-use soft-
ware you'll need to take
your ATARI 1200XL Com-
puter beyond the self-
tests. There are a
number of factors you
should study, however,
in looking for software to
make your computer
work most effectively.
You'll want to consider
costs, of course, not only
of the software itself (car-
tridge, cassette or
diskette), but also of the
additional hardware (pro-
gram recorder or disk
drive) that you may need
to use the software. Your
personal interests,
however, will play a
leading role in your
selection of software.
i
13

You'll need to ask
some important ques-
tions: Are there children
in your family who will
benefit from Atari's many
educational programs?
Are you trying to make
your home business
more profitable? Will you
want to use your com-
puter to write reports?
Will your computer also
serve as an entertain-
ment center?
The kind of software-
cartridge, cassette or
diskette—you intend to
use with your computer
will play amajor role in
deciding what periph-
erals such as disk drives
or printers you want to
add to your system.
If you plan to just use
cartridges, for example,
you may need only joy-
sticks or paddle control-
lers. Cartridges plug
directly into the slot on
the left side of your
ATARI 1200XL Computer,
so no additional periph-
eral is required to run
them.
Most of ATARI'S popu-
lar video games come on
cartridges, which pro-
vide almost instant pro-
gram loading and are
practically indestructible.
But because cartridges
are ROM-like devices,
they won't store informa-
tion.
If you do want to save
data—or decide to pur-
chase any of ATARI'S
powerful ready-to-use
software programs on
cassettes or disk-
ettes—then you will need
to consider buying addi-
tional hardware.
14

Start with apair of joy-
stick controllers. Add a
program recorder or
disk drive. Then a
printer . . . perhaps a
modem.
There's an ATARI
accessory device that
will make your computer
more versatile and effi-
cient, whether it's play-
ing avideo game, writing
areport, or hooking up
to ahome-information
network.
The first piece of hard-
ware you'll probably
consider is aprogram
recorder or disk drive.
They both provide safe
and reliable storage for
information you want to
save when you're using
your computer. Each has
its own advantages.
Aprogram recorder
uses inexpensive cas-
sette tape, which is wide-
ly available and easy to
use. And it can replay
sound recorded along
with other data on the
cassette tape. Aprogram
recorder is also the most
economical way to store
information.
But most people ex-
perienced with compu-
ters prefer to store infor-
mation on adisk drive.
To appreciate why, it's
necessary to understand
how each device works.
Aprogram recorder-
like aconventional cas-
sette tape recorder-
stores data serially. That
is, it saves data in se-
quence on tape. If you've
stored five documents on
acassette and you want
to recall the last one
recorded, you first have
to advance the tape past
the first four to find the
information you want.
This can be atime-con-
suming and imprecise
process.
Adisk drive can load
the same program in a
few seconds. That's
because information on a
"floppy" diskette, athin,
pliable sheet of mylar
covered with magnetic
recording material, is
stored in sectors similar
to the cuts on arecord.
Just as you can set the
needle down on any
band on arecord-
without listening to the
other songs—adisk drive
can go directly to any
sector of adiskette and
"play" that information
into your computer's
memory.
15

This is one reason why
adisk drive stores data
so quickly. Adisk drive
also records an index on
one sector of each disk-
ette. This directory tells
the computer the exact
location of each file of in-
formation.
Of course, disk drives
are more expensive than
program recorders. But
for speed, power, and
convenience, you may
find adisk drive aworth-
while investment.
Aprinter can be aprac-
tical addition to your
ATARI 1200XL Computer
system. It lets you take a
close look at what you've
written, analyze or make
notes on program list-
ings, or print letters and
reports.
Your particular appli-
cation will determine
which type of printer
you'll need.
If the majority of your
printing will be program
listings, then a40-column
printer will probably
meet your needs. Some
even possess four-color
plotting capability that
allows them to draw
charts and graphs.
Eighty-column printers,
however, offer avariety
of features that make
them worth the invest-
ment to many ATARI
Computer owners.
Eighty-column (full-page)
printers are necessary if
you need to produce let-
ters or reports. Full-size
printers are also neces-
sary if you want to print
the bookkeeping records
produced by an account-
ing program.
Intrigued by the pro-
mises of high-speed
home information ser-
vices? There's aperiph-
eral device called a
modem that lets you
transmit and receive
information from these
and other sources over
standard telephone lines.
The word modem
stands for "modulator-
demodulator." Amodem
translates—or modu-
lates— digital information
from your computer into
signals that can be sent
over phone lines. It also
demodulates incoming
signals from the phone
into digital information
for your computer. This
two-way translation pro-
cess allows your com-
puter to "talk" to other
computers .ill nvoi llic
world.
An ATARI modem
gives you access to com-
puter data bases, trans-
position ,iik1 (Mid Mtaiii
ment schedules, and a
variety of specialized
information systems such
as the COMPUSERVE IN-
FORMATION SERVICE*
and THE SOURCE,
AMERICA'S INFORMA-
TION UTILITY.**
*Tr<Klflluuk of (!ompu:;r[Vi'. Inr ,.Hi HftK
Mlnel riiiiii Mhv
"Tin: si iuhi :i: ,..i amiikh :a's ini'i n;
MATH IN UTILITY ,in- iumvici marks ol
Sou Ti'lor |iu !i'til |>. !.1I1..11. .1 .ill
Mllilrtiy ol Tho Kf.ul.-l'!: I-::l A::::on.l
lion In.
16

It's well worth your while
to get to know other
ATARI Computer
owners—many are
experienced program-
mers who have devel-
oped exciting games and
helpful programs of their
own.
Chances are there's an
ATARI Users' Group m
your area—more than
250 of these clubs
throughout the world
meet periodically to ex-
change programs and
ideas. You'll find that
other ATARI Computer
owners are eager to help
the beginning or would-
be programmer.
Many local users'
groups also publish regu-
lar newsletters which fea-
ture articles about other
ATARI Computer users
and the programs
they've written, sched-
uled meetings, and
reviews of new hardware
and software products
for your ATARI Com-
puter.
If you can't locate the
ATARI Users' Group in
your area, contact the
ATARI User Group Sup-
port Staff at 60 E.
Plumena, Box 50047, San
Jose, CA 95150. They'll
put you in contact with a
local users' group—or, if
there isn't one in your
area, give you informa-
tion and advice you'll
need to start one. ^^^
APX-the ATARI Pro-
gram Exchange—offers a
good sampling of the
programs ATARI Home
Computer owners have
written. Atari created
APX to distribute user-
written software for
ATARI Computer users.
APX holds quarterly
contests to pick the best
of the programs devel-
oped by ATARI Com-
puter users, then pub-
lishes aquarterly catalog
listing the products avail-
able. All APX programs
are available by mail,
and many ATARI
retailers carry APX
software. You can
obtain copies of the
APX catalog at
your ATARI retailer.
A17

1
IMPORTANT INFORMATION:
Like any electrical appliance,
this ATARI Home Computer
uses and produces radio fre-
quency energy. If it is not in-
stalled and used properly
according to the instructions in
this guide, the equipment may
cause interference with your
radio or television reception,
It has been type tested and
found to comply with the limits
for aClass Bcomputing device
in accordance with the speci-
fications in Subpart Jof Part 15
of the FCC rules. These rules
are designed to provide
reasonable protection against
such interference when the
equipment is used in aresiden-
tial setting. However, there is
no guarantee that interference
will not occur in aparticular
home or residence.
If you believe this equipment
is causing interference with
your own radio or television
reception, try turning the equip-
ment on and off.
If the interference problem
stops when the equipment is
turned off, then the equipment
is probably causing the inter-
ference. With the equipment
turned on, you may be able to
correct the problem by trying
one or more of the following
measures:
•Reorient the radio or televi-
sion antenna.
•Reposition the equipment in
relation to the radio or televi-
sion.
•Move the equipment away
from the radio or television.
WARNING: Only peripheral
equipment certified to comply
with Class Bregulations as
defined in Subpart Jof Part 15
of the FCC rules should be at-
tached to this computer.
Operation of noncertified pe-
ripherals with this computer is
likely to result in interference
to radio and TV reception.
Every effort has been made
to ensure the accuracy of the
product documentation in this
manual. However, because we
are constantly improving and
updating our computer soft-
ware and hardware, Atari, Inc.
is unable to guarantee the ac-
curacy of printed material after
the date of publication and
disclaims liability for changes,
errors or omissions.
No reproduction of this docu-
ment or any portion of its con-
tents is allowed without the
specific written permission of
Atari, Inc., Sunnyvale, CA
94086.
IS

WI
Piinted in Taiwan
C? i982 Atari, Inc. All rights reserved ATARI
^y AWarner Communications Company C061418Rev.A
1983.4. c.c