14
NOTE: Before starting this procedure ensure the changer is plugged in, the ON/OFF switch is on,
the hopper is full of coins, and all wire harnesses are connected securely and correctly.
The wires exiting the red connectors should point away from the board!
Start Here!
For a more detailed trouble shooting information proceed to the next section!
FOR TECHNICAL SERVICE OR TO OBTAIN A RETURN AUTHORIZATION NUMBER
CALL (888) 741-9840
ANY REPAIR RETURNED WITHOUT A RETURN AUTH. # WILL BE REFUSED!
NO
The validator logic
board is flashing
an error code.
Refer to page 9
and clean the
validator.
The main logic board is reading
a low coin indication.
1.
Make sure the hopper is
plugged securely into its
connector.
2.
Clean the gold low contact
plates located under the coins
with steel wool or a fine grit
sandpaper.
3.
Make sure the female
connector on the hopper
plate is not broken or being
pushed out the back of the
hopper plate.
4.
Replace the hopper.
5.
Replace the hopper plate.
6.
Replace the main logic
board.
The main logic board is receiving
the bill pulses but the hopper is not
receiving the pay out pulses.
1.
Ensure the hopper is plugged in
firmly in the back to the hopper
plate.
2.
The hopper is jammed
3.
The hopper harness connector is
faulty.
4.
Replace the hopper.
5.
Replace the hopper harness.
Is the “Empty”
LED on the front of
the machine lit?
The 2-1/2-amp fuse
is blown.
If fuse blows again
replace the Main
Logic board.
NO
YES
Will the validator try to
pull in a bill then reject it?
NO
YES
Is the green LED lit
on the main logic
board?
NO
YES
NO
YES
Will the validator
accept a bill?
TECHNICAL FLOW DIAGRAM FOR THE AC400/500
