Atari 400 Field Service Manual

ALUMINUM
CASniM
Figure *-lO.
ATARI
800
Console, CPU
Printed
Circuit Board
Removal
ACCESS
TO
MOTHERBOARD
Use
Figure
^11
as reference
for the following
three
steps.
•
Carefully
slide
the tip
of a screwdriver
underneath
the motherboard
next
to
the nylon
clip.
Gently raise
the
handle of the
screwdriver,
prying
off
the
nylon
clip.
Repeat
this
operation
for the remaining
three
nylon clips.
» » *
CAUTION
• »
Be
care&l
not to
bend
any of the
pins on
the
Motherboard
Connector.
Do NOT
allow the
tip
of the
screwdriver
to damage
traces.
ATARI
Home
Computer
i*'{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)