Atari 800 Field Service Manual

400
POWE-?.-U?
CATASTROPHIC
FAILURES
AiVD
3A5IC OPERATIONS
GREEN
/YELLOW
dCREEN
Is
there
a defective
YES
Repair
RAM
card in the
Unit
(check
lowest
RAM slot arst)
YES
'S
NO
Swap-out
ROMs
F(A103),
E(A104),
and D(Aia5}
Is
a
clear
MEMO
PAD
on
the
screen
Go to
POWER-UP,
PART II.
Page
5-8
YES
NO
Swap-out the
following A303.
and Z303, and Z3a4
Is
a clear
MEMO PAD
on the
screen
-
Go
to POWER-UP,
PART
II. Page
5-8
NO
Go to
SOUD BLUE
SCREEN.
Page
5-7
ATARI
Home
Computer
5-6

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