Atari 400 Field Service Manual

Lift
the motherboard
off the lower
shield.
Remove
the plastic
cartridge
guide
by
unhooking
the four latches
from
the
bottom
side of the motherboard.
cAimiooe
suioe
aOTTQM
SHIGLO
Figure ^-11.
ATARI
SOO
Console,
Motherboard
Removal
KEYBOARD
REMOVAL
Use
Figure
*-l2
as
reference
for the
three
steps, to remove
the
keyboard
from
its
case.
•
Turn
the top
cover
upside
down.
•
Remove
four
screws from
the
four corners
of the keyboard.
•
Lift
the
keyboard
out
of the top
cover.
This
concludes
the
disassembly
of the
Atari 800
Home
Computer
console.
ATARI
Home
Computer
i^-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)