Troubleshooting Guide
Problem What
to
Check
Wheel runs briefly, stops, and restarts
over and over again
This view shows underneath playfield
from inside the front door.
1.
Check hall effect sensor
1
operation; wheel
opto light
2
should flash once per wheel
revolution when magnet (pressed into the
bottom of the wheel) passes over sensor. If
light does not flash:
•
Hall effect sensor
3
may not be close
enough to the wheel to activate the
sensor
•
Power may not be connected to hall
effect sensor
2.
Check sensor output; sensor output should
transition from +5V to 0V when magnet
passes over the pcb. If hall effect sensor pcb
has power but there is not transition on the
output, the hall effect pcb is bad. If signal
transitions all the way back to the Controller
board, controller board may be bad.
3.
Check wheel motor drive. Make sure rubber
drive wheel is not slipping against play
wheel.
Ball does not drop when ball drop button
is pressed and ball drop button does not
illuminate when credits are available
1.
Check ball ramp switch
4
adjustment
2.
Make sure the output wire is connected to the
NC (normally closed) side of the ball ramp
switch.
Ball does not drop when ball drop ball
button is pressed and ball drop button
does illuminate when credits are available
1.
Check for out of round or oversized balls.
Check ball size by inserting them into the
Jackpot hole in the wheel. They should pass
through the holes without interference.
7
