Atari 400 Field Service Manual

SECTION »
DISSASSEMBLLY/AS5EMBLY
MAINTENANCE
ATARI
WO HOME
COMPUTER
CONSOLE
-
DISASSEMBLY
The
following
describes
the
procedures required
to
disassemble
the
*00
Computer
Console.
Read the
following NOTES
first,
then proceed.
•
•
•
NOTE
•
L Be
very
careful
about mixing
screws.
Plastic
and
aluminum
parts
can be
easily stripped
or
damaged
by puncture
If
the
wrong
size screw
is used.
Z.
Excessive
torque
on screws
can
strip the
plastic
and aluminum
parts.
o
Plastic
-
6-inrh
pounds
torque
maximum.
o
Aluminum -
10-inch
pounds
torque
maximum.
3.
Protect
the
plastic
surfaces
of the
console by
working
on
a
soft
surface
(a grounding
pad works
very
well)
when
the
Console
is turned
over,
bottom
up.
*.
Use ALL
static
control
precautions
when
handling
any printed
circuit
board.
KEYBOARD
AND
POWER
SUPPLY
ACCESS
To
remove
the
top
cover,
perform
the
steps in the
exact
order given.
• Turn
the
unit side
down.
•
Remove
four
screws from
the
bottom
cover
(See Figure ^f-l).
ATARI
Home
Computer
i^-1

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)