Atari 800 Field Service Manual

INTRODUCTION
The ATARI
^00/800 Home
Computer"^^ Field
Service
Manual is
organized
in 10
Sections:
i THEORY
OF OPERATION -
overview
of how
the *00
and 800
Home
Computers
work-
2
SILK5CREEN5
AND
SCHEMATICS
-
electrical
layouts
and
drawings for
major
components.
3
TESTING
AND
TROUBLESHOOTING -
overview
of
tests which
assist
in
diagnosing
malfunctions.
*
DISASSEMBLY/ASSEMBLY
-
detaUed
instructions
to
completely
disassemble
and assemble
both
units.
5
WO
DIAGNOSTIC
FLOWCHARTS
-
detailed
procedures
for
troubleshooting
and repairing
the
*00
Computer.
6
*00/800 SYMPTOM
CHECKLIST -
quick
reference
for
troubleshooting
each computer.
7
800
DIAGNOSTIC
FLOWCHART -
detailed
procedures
for
troubleshooting
and
repairing
the 800
Computer.
8
GAME
CONTROLLERS
-
overview
of hand
controller
construction
and
recommended
test
procedures.
9
PARTS
LIST -
detailed
breakdown
of
all parts
used
in each
unit.
10
SERVICE
BULLETINS -
section
to
be
used to hold
Field
Change
Orders,
Upgrade
Bulletins,
and Tech
Tips.
This
manual
is
designed
for
use by both
the
experienced
and
inexperienced
service
technician.
The
Diagnostic
Flowcharts
(Sections 5
and
7) provide
detailed
diagnostics
and
repair
procedures
for
technicians
not
completely
familiar with
the
ATARI
*00/800 Home
Computers.
The
Symptom
Checklist
(Section
6) provides
a
rapid
repair
reference
for the
more
experienced
technician.
ATARI
Home
Computer
ix

Atari 800 Specifications

General

Processor	MOS Technology 6502
Processor Speed	1.79 MHz
ROM	10 KB
Graphics	ANTIC and GTIA chips
Release Year	1979
Display Resolution	up to 320 x 192
Colors	128 colors
Sound	4 channels
Storage	Cartridge, cassette, floppy disk
Ports	Cartridge, serial, monitor
Operating System	Atari OS