Atari 800 Field Service Manual

• * •
NOTE
* *
•
The CPU PCB
must
fit into the guides in the aluminum casting.
•
Install
lower shield and secure it with
eight screws.
• Install
the module assembly in the bottom cover.
KEYBOARD INSTALLATION
Refer
to
Figure
1-3
as a reference for the following
three steps-
•
Plug
the
speaker cable into
the motherboard
(no
Polarity)
and set the
speaker into the bottom
cover.
•
Plug
the keyboard
ribbon
cable into the connector
on the motherboard.
•
Gently lower
the keyboard
over the Power-ON
LED
and guide
posts on the
aluminum casting.
POWER
SUPPLY
INSTALLATION
Use
Figure
^^-^
as
reference for the
following five
steps.
•
Align the
power
supply over
the motherboard
connector
pins and bottom
cover
guide posts
and
gently press it down.
•
Install
the interlock
switch
plunger
into the aluminum
casting. Make
certain that
the lower
end
of the plunger is
positioned over
the interlock
switch
and the
plunger
shaft rides in
its notch
in the power supply
heat
sink.
•
Insert
and
tighten
the two power
supply mounting
screws.
* • *
CAUTION
• *
*
Be
sure that
the RF
cable
is not trapped
under the module
assembly.
•
Route
the RF
cable
through
its slot in
the power supply
board
and plug it
into
the power
supply jack.
•
Insert
and
tighten the
single
keyboard
mounting screw.
Atari
Home
Computer
^-lS

Atari 800 Specifications

General

Processor	MOS Technology 6502
Processor Speed	1.79 MHz
ROM	10 KB
Graphics	ANTIC and GTIA chips
Release Year	1979
Display Resolution	up to 320 x 192
Colors	128 colors
Sound	4 channels
Storage	Cartridge, cassette, floppy disk
Ports	Cartridge, serial, monitor
Operating System	Atari OS