Atari 400 Field Service Manual

ATARI 800 HOME
COMPUTER
CONSOLE
-
DISASSEMBLY
The
following
describes
the procedures
required to
disassemble the ATARI
SOO Home
Computer
console.
Read
the NOTES
on pages
^t-l
thru
^-
3 first,
and then proceed.
ACCESS
TO RAM
BOARDS
AND ROM
BOARD
To
gain access
to the RAM
and ROM
boards,
perform the
steps in the
exact
order
given.
Remove the
cartridge
door
assembly.
Use
Figure
'^-6
as a
reference
for the following
eight steps.
•
Turn
the
system power
switch
to the OFF
position.
• Open
the
cartridge door.
•
Turn
the
cartridge
door
clamps towards
the
outside
of the
Console.
•
Lift
the
cartridge
door
assembly 1/*
inch,
pull it towards
you, and lift
it
off.
Remove
the RAM
and ROM
modules.
•
Lift
out the RAM
module<s),
• Lift
out the ROM
module.
•
Lift
out
any
cartridge<s).
Turn
cartridge
door
clamps
to original
position.
•
ATARI
Home
Computer
i^-8

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)