Atari 400 Field Service Manual

Reach over
the top cover
and unplug
the keyboard's
ribbon
cable.
Set the
top cover assembly
aside.
Lift
the power supply board straight
up.
Remove
plastic cartridge
guide by unhooking
the latches
from
the bottom
side of the
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Figure
^^-3.
ATARI
800
Console,
Module
Assembly
Removal
REMOVE
THE
POWER
SUPPLY
Use
Figure
*-9
as
a reference
for the following
five
steps.
•
Unplug
the RF
cable from
the power
supply
board.
•
Unplug
the power
supply
harness,
•
Remove
three
screws
from
power
supply board.
ATARI
Home
Computer
*-U

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)