Bally Xenon - Page 19

1A)
SYMPTOM:
Game
does
not
play
power-up
tune
when
power
is
turned
on.
General
Illumination
is
present.
ACTION:
A)
Turn
power
OFF.
Open
back
box.
Locate
light
emitting
diode
(LED)
on MPU
module
A4.
B)
Turn
Power
ON.
LED
must
flash
7X to
indicate
that
module
A4
is
good.
Correct
flash
sequence
is
flicker/flash-pause-and
then
six
more
flashes
and
LED
goes
out.
C.
If
LED
does
not
come
on,
or
does
not
flash,
or
flashes,
but less
than
7X,
turn
off
power.
Replace
MPU
module
A4.
CAUTION-
Replacement
MPU
Module
must
have
same
Part
Number
or
incor-
rect
operation
will
result!
See
Parts
List
for
MPU
Module
Part
Number.
Turn
power
ON.
D)
If
game
is
correct,
it is
now
ready
for
play.
If
game
is
not
correct,
refer
to
Module
Replacement
procedure.
(See
Parts
List.)
2A)
SYMPTOM:
Not
all
feature
lamps
light
during
game
play.
ACTION-
A)
With
power
ON,
open
front
door.
Press
button
(Self-Test
switch)
once.
If the
game
is
correct,
all
feature
lamps
flash
ON
and
OFF.
B)
Carefully
raise
playfield
or
open
back
box to
gain
access
to
lamps.
C)
Replace
bulbs
that do
not
flash.
D)
If
game
is
correct,
it is
now
ready
for
play.
E)
If
game
is
not
correct,
turn
power
OFF.
Replace
Lamp
Driver
Module
A5.
Turn
power
ON
and
repeat
A.
F)
If
game
is
correct,
if is
now
ready
for
play.*
G)
If
game
is
not
correct,
turn
power
OFF.
Replace
MPU
module
A4.
See
CAUTION,
1
C.
Turn
powerON
and
repeat
A.
H)
If
game
is
correct,
it
is
now
ready
for play*
If
game
is
not
correct,
refer
to
Module
Replacement
procedure.
(See
Parts
List.)
2B)
SYMPTOM:
One
or
some
switched
lamps
always
ON.
ACTION:
Repeat
2AA,
AB,
AE,
and
AF
and,
if
necessary
AG
&
AH.
3A)
SYMPTOM:
Display
digits
improper
on
one
or
several,
but less
than
all
Display
Driver
module(s),
A1
.
Improper:
One
or
several
segments
always
OFF,
digits
mottled
or
several
segments
or
digit(s)
always
ON.
ACTION*
A)
With
power
ON,
open
front
door.
Press
button
(Self-Test
switch)
twice
If
the
game
is
correct,
each
digit on
each
Display
Driver
Module
A1
(5
used/game)
displays
the
count
1-9
and
continuously
in
all
6
digit
positions.
Note
defective
Display
Driver
modules.
B)
Turn
power
OFF.
CAUTION:
High
Voltage
is
supplied
to
the
Display
Driver
Modules,
A1,
from
the
Solenoid
Driver/Voltage
Regulator
Module
A3.
Wait 30
seconds
for
High
Voltage
to
Bleed
Off.
C)
Replace
Display
Driver
module(s)
A1
.
Turn
power
ON.
Repeat
A.
D)
If
game
is
correct,
it
is
now
ready
to
play*
If
game
is
not
correct,
refer
to
Module
Replacement
procedure.
(See
Parts
List.)
3B)
SYMPTOM:
All
displays
improper
(all
five
display
Driver
modules).
Improper:
Digit(s)
always
on
or
off/segment(s)
always
on
or
off,
all
displays.
ACTION:
A)
Repeat
3AA,
and
AB.
B)
Replace
MPU
module
A4.
See
CAUTION
NOTE,
1C.
Turn
power
ON.
Repeat
A.
15