Atari 800 Field Service Manual

300
POWER-UP
CATASTROPHIC
FAILURES
AND BASIC
QPERATIONC
GREEN
/YELLOW
SCREEN
Is there
a
defective
YES
Repair
RAM
card tn
the
Unit
(check
lowest
RAM
slot
first)
C?
NO
^
Swap-out
ROMs
A40I
-
A403
on
Personality
Board
Is
a clear
MEMO
PAD
on the
screen
YES
Go
to
POWER-UP,
PART
II,
Page
7-8
NO
Swap-out
the
following
A303
,
and
Z303.
and 2304
Is
a
clear
MEMO
PAI
1
YES
Go
to
POWER-UP.
on the
screen PART
II.
Page
7-8
NO
Go
to
SOLID
BLUE
SCREEN.
Page
7-7
ATARI
Home
Computer
7-6

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