Atari 400 Field Service Manual

RF
CABLE
POWER
SUPPLY
MOTHER
BOARD
CONNECTOR
WIRE HARNESS
Figure
*-9.
ATARI
800
Console,
Power
Supply Removal
ACCESS TO CPU PRINTED
CIRCUIT BOARD
Use
Figure
^-10
as reference
for the following four steps.
•
Turn
the
unit upside
down,
• Remove
the nine
screws from
the
lower
shield,
•
Lift
the motherboard
and
lower shield out of the aluminum
casting.
• Remove
the CPU PCB.
ATARI
Home
Computer
if-12

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)