Atari 400 Field Service Manual

Figure
8-2.
Joystick
Schematic
JOYSTICK
(X-Y
CONTROLLER)
CHECK
Equipment
Needed
1)
T.V.
Set
2) Known
good console
3) Star Raider
cartridge
Procedure
1) Check
for
cosmetic
damage-
2)
Plug
in
cartridge
and
piug controller
to
be tested
in the left
player port.
3) Press
RESET.
^) Play
game.
5) Move
the
joystick in
the
eight
possible
directions.
6) Test
is now
completed.
ATARI
Home
Computer
S-3

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)