Atari 400 Field Service Manual

MODULE
ASSEMBLY
INSTALLATION
INTO TOP
COVER
Refer
to Figure
^^-8
as reference
for the
following
six steps.
•
Set the top cover upside
down,
•
Invert
the module assembly
and lower
it
into the
top
cover.
Turn
the
cartridge
door latches
toward the inside
in
order to clear
the top cover.
•
* *
CAUTION
* *
•
Make
certain that
the RF
cable
is not trapped
between
the
power
supply board
and the top
cover standoff
(upper
left
screw hoie).
•
Lift
the motherboard
one-inch
out of
the top
cover
and
plug in the
keyboard
hamess-
•
Insert
and
tighten two
screws
into the
front
holes of-
the
aluminum
casting
and into
the top
cover.
•
Set
the speaker
into
its
receptacle
foam
side down. .
Connect
the speaker
cable to the
jack
(no polarity).
•
BOTTOM
COVER
INSTALLATION
Refer
to Figure
^7
as
reference
for the following
four
steps.
Align
the
bottom
cover with
the
four-hand-controller
ports.
Seat
bottom
cover
firmly,
all the
way
around.
Make
certain the RF
cable
exists
through
its
hole
and is not
trapped
between
the
covers.
Insert
and
tighten
the five
bottom
cover
screws-
Set
the
console
right
side
up.
Atari
Home
Computer
i^-lS

Atari 400 Specifications

General

Manufacturer	Atari
Model	400
Type	Home Computer
Release Year	1979
CPU	MOS Technology 6502
CPU Speed	1.79 MHz
ROM	10 KB
Operating System	Atari OS
Keyboard	Membrane keyboard
RAM	8 KB (expandable to 48 KB)
Graphics	ANTIC and GTIA chips
Sound	4 channels
Display	RF output for connection to TV
Storage	Optional cassette tape drive or floppy disk drive
Ports	Cartridge
Display Resolution	320x192 (16 colors)