Balls do not score
1.
Check ball sensing opto sensors to see if ball
opto light
1
goes on when opto beam is
blocked. If light does not go on:
•
Check power to opto receiver
2
sensor
pcb’s
•
Check output signal from the opto
receiver
3
pcb. Output from opto
receiver should transition from +5V to 0V
when opto beam is blocked. If not, the
opto receiver should be replaced.
2.
If ball opto light
4
is always on:
•
Check power to opto transmitters
5
•
Check to be sure that the opto
transmitters
5
and receivers are in
alignment.
3.
If ball opto light
4
does go on and the output
transition from the opto receiver pcb is
detected all the way to the controller board,
then the controller board is bad.
Note: You will need to remove the ball cover
6
by removing the cotter pins
7
to access
transmitter side of opto sensors and to block opto
path for testing.
Game does not power on
1.
Check that power switch
1
is in the “ON”
position
2.
Check that power cord is good
3.
Check power input fuses:
a.
With a small flat head screwdriver,
pull the fuse holder
2
out. Fuse
holder is located next to the power
input plug
3
.
b.
Tilt the fuse holder cover to the side
to access fuses
4
c.
Replace fuses (5 Amp) if necessary
and push fuse holder back into place.
9
