Atari 400

400 CONSOLE SWITCH
TEST
START
Press S and
RETURN
YES
?ress aach
(4)
Console
Switch
PASS
Go to ROM Test,
Page
5-29
NO
NO
,mi;
Does console
speaker
"SEEP"
when
any
Console Switch
is
pressed
Are ail9
-
R122 or
CI21
-
124 shorted
or open
YES Replace and retest
YES NO
^
YES
Replace CTIA/GTIA
(A301)
on CPU
3oard and retest
PASS
Go to ROM Test,
Page
5-29
YES
i
NO
Did
a
single
switch
fail
NO
Call
ATARI
Tech
Line
Specialist
Inside
California
(800)
672-U66
Outside
California
(800)
538-1535
(800)
538-1536
ATARI
Home
Computer
5-28