Atari 400 Field Service Manual page 142

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