EXIDY FIRE ONE Instruction Manual page 8

SCREEN AND SOURCE SHIFT TEST
1.
The seventh
test automatically
checks
other
memory
and PC board components relating
to
screen
and source
shifting
and looks like this:
SCREEN SHIFT
SOURCE SHIFT
2.
When
an
OK message appears
next
to
a
message
on
the screen,
memory
and
PC board components are
in
working
order.
3,
If
a
NOT OK message appears next
to
a
message
on
the screen,
suspect chips
7A and 8A on the
mother
PC board
(see schematic
"B*W RAM
ADDRESSING
AND
RAMS")
.
Press
test
.
the FIRE button
to
go to the next self
SCREEN AND SOURCE
REVERSE TEST
The
eighth
test automatically
checks memory and
PC board components relating
to
screen
and source
reversal
and looks like this:
SCREEN REVERSE
SOURCE REVERSE
When
an
OK message appears
next
to
a
message
on
the screen,
memory
and PC board components are
in
working
order.