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TROUBLESHOOTING FLOW CHARTS
These charts are intended as a guide to help isolate and correct problems you may encounter. Should your
Machine show ‘OUT OF SERVICE”, go to Programming TEST MODE and press “B” to List Errors.
ALL COINS ARE REJECTED
Dirty / faulty
Coin Sensor.
Incompatible
Coin Mech.
Defective Coin
Mech.
Defective
VMC.
Apply power.
Check for cause, correct,
reset Outlet Breaker.
Should have a heartbeat
on/off pattern.
All Coins are
rejected.
Main Power
OFF /
Disconnected.
Outlet Breaker
tripped.
Clear Coins.
VMC D5 Red
Diagnostic
Light
Replace spring.
Weak spring
on Mech Gate.
Clean & reset Gate.
Clean / replace.
Gate partially
open.
Jammed Coin
Mechanism.
Replace Coin Mech.
Replace Coin Mech.
Replace VMC.
Should be On with
Service Door Open.
VMC D6
Yellow
Diagnostic
Light
Check MDB Harness
& connections.
MDB Harness.
Summary of Contents for 3800-4
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