Troubleshooting Chart – Bay-Tek Version
Problem
Probable Cause
Remedy
Upper backlighting not
functioning properly.
a. Cable problem.
b. Lamp(s) out.
c. Lamp circuit board faulty.
a. Check for proper connection to
main board. Check continuity.
Replace grey cable.
b. Replace burned out lamps.
c. Replace board – AABD2705.
Wheel not rotating.
a. Motor unplugged.
b. Loose or broken wires.
c. Motor faulty.
a. Reconnect motor wiring.
b. Check for loose or broken
wiring at connectors for motor
and main circuit board. Check
continuity from plug to crimped
ends.
c. Replace motor – AAMO2700.
No coin up
sound
a. Switch bad in coin mech
b. Disconnected, loose or
broken wires.
c. No game sounds at all.
a. Replace switch – AASW2700.
b. Check connectors. Check for
continuity.
c. Go to No Audio section to
restore sound.
Game doesn’t
score.
Check for
coin up sound
– Yippee
Yahoo
At coin drop
Yes –Coin
up sound
a. Coin taking too long to
get to sensor board.
b. Slot sensor board not
seeing coin.
c. Slot sensor board bad.
a. Clean ramp.
b. Green LED should be ON only
when sensor is blocked.
c. Replace chip – ULN2803
Replace board – AABD9616.
Game scores wrong values
a. Game is scoring too soon
– before coin reaches
Slot sensor board.
a. Slot sensor board is bad –
Align/clean sensors, replace
chip, replace board.
Tickets
Owed
Display is
adding up
correct
a. Disconnected, loose or
broken wires.
b. Opto Sensor on ticket
dispenser dirty.
c. Faulty ticket dispenser.
d. Notch on tickets cut too
shallow.
a. Check connectors. Check for
continuity.
b. Blow dust from sensor and
clean with isopropyl alcohol.
c. Replace with working
dispenser to isolate the
problem.
d. Flip tickets and load upside-
down to have large cut notch
toward opto sensor.
Tickets do
not dispense
or Wrong
amount
dispensed.
Check for
the correct
amount of
tickets
adding up
on Tickets
Owed
Display
Tickets
Owed
Display is not
adding
correctly
a. Incorrect dipswitch
settings.
b. Game is scoring too soon
– before coin reaches
Slot sensor board.
a. Check settings on main Gen 5
board.
b. Slot sensor board is bad –
Align/clean sensors, replace
chip, replace board.
