Williams Electronics WHIRLWIND - Page 42

TEST/DIAGNOSTIC
PROCEDURES
(Continued)
PROBLEM
ANALYSIS MESSAGES.
(Continued)
Adjust
Switch
##.
This
message
indicates
that
at
least
one switch
was
stuck ‘On’ at game
turn-on
or
has
NOT been actuated during ball
play
(for 90
balls or
~30
games) by displaying
the
message
“Adjust
Switch
##”,
listing
each
problem
switch
by number. (The
game program
compensates the
game
play requirements
affected by
each disabled switch to allow
‘nearly
normal‘
play. This
helps keep Winllrfl xmllmil
earning, until the
service
technician can repair the
problem, bringing
the game
back
to
its
normal
good
profits!)
To
verify the problem,
refer
to the Test/ Diagnostic
Procedures text describing Switch Testing,
and
check
each
reported
switch using
applicable
Switch
Levels
and Switch
Edges
tests. Always
check switch
operation using
a
ball, to
simulate
game conditions. (Switch problems
may often be
resolved
by
adjusting
the wire
switch
actuators,
fixing switch circuitry
problems,
securing loose
connectors, etc.
Mechanisms
using
‘opto
switches’
(drop targets,
etc.) need to be checked
for
proper power
connections
(+12V do
and
ground).
Pinball
Mlsslng.
Whirlwind
normally
uses
three
balls;
however, it will
operate
with two balls.
This
message
announces
that a ball
is
missing or stuck
somewhere.
when
the ball is located,
return
it
to the
game
via
the Outhole.
Other
possibilities
for this problem could be malfunctions
of
the Ball Trough
switches
(#11, #12,
or
#13)
or
the
Ball Shooter
switch (#14).
Music
Error.
This
message
means
that
no
signals
are coming
from
the Audio Board. Check
the Audio Board
for
presence
of
Whirlwind
ROMs.
Also,
check that all cables
connecting the
Audio
Board,
the “Sound
Overlay Solenoid”
Board, and the CPU Board
are firmly seated. Turn
the
game Off, then
On, to
be
sure only
1
‘bing’
sounds.
More
than
one ‘bing’
or NO ‘bing’
indicates
an
Audio
Board
problem. Refer
to
the text about the System 11-B Sound
Circuitry
tests for
more
information.
R. Ramp
UP Error
/ R. Ramp
DOWN
Error.
Display
of either
message
means that the
Right
Ramp
did
not reach
its
proper
position. To
check
for
‘Ramp Up’ operation,
switch the game
Off,
and
then
On.
To
check
for
‘Ramp Down’
operation,
start
a game
(NOTE:
Operation
of the
Top
Right
Eject Hole
switch
delays lowering
the ramp.).
Ramp problem
causes can include: 1)
A
mechanical
problem preventing
Ramp
movement,
possibly a
ball stuck under the ramp, playfield
plastics
interfering
with
ramp movement,
etc.;
2)
The
Ramp
Down
switch is not operating
properly;
3)
The fuse
for the
Right Ramp
Up
solenoid
is blown or the solenoid wiring is “open”
electrically
(preventing
solenoid
operation).
xxxxx
Sw. Is
Stuck
On. This
message
indicates
that a switch,
which
is not
usually
On,
remains
in
the
On
position after
the game is switched
on. The stuck switch is essential for
game
play
(for
example,
a coin
chute
switch,
the
slam
tilt
switch, the plumb bob tilt switch),
and should
be
cleared to permit
proper
game
operation.
Momentary
Short. This message indicates that
the game
program detected a short
circuit
(to
ground)
affecting
one
or
more
of
the
switches
listed
in
the switch matrix.
To erase the
message,
analyze the
reason for the
switch
being reported
by
performing
the
Switch
Tests portion
of the
Test/ Diagnostic
Procedures.
Frequent
appearance of
this message requires
activation
of the
Switch
Levels Test
to
locate
the
switch
causing
the “WHT-xxx
ROW x SHORT"
message.
Possible
‘row
short’ causes are:
1) Slam
Tilt
(or
other coin
door) switch
touching
the grounded
coin
door;
2) A leaf-type,
playfield
switch
touching
a
grounded
part;
3) Players
poking
metallic
objects (wires, coat hangers, etc.)
into
the
game;
4) Switch cable
insulation pierced
or
damaged
allowing bare
wire
contact with a grounded
part;
5)
A
3-bank
Drop
Target Opto PC
Board
(p/n
C12559
WITHOUT diodes)
which
is
not
connected
to
ground;
6)
All
switches
in a row
closing
at
the same time
(Note:
This instance is
NOT
a switch problem;
however,
for
most
games
this is
a
very
rare possibility).
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33
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