American Changer AC2002, Руководство по эксплуатации

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6.
The EEPROM then sends the hopper pulses out pin #23 to pins 6 and 7 of the red 12-pin hopper plugs.
These pulses travel through the purple and brown wires of the hopper’s wire harness to the hopper’s pins
8 and 12.
7.
The hopper turns itself on with the first hopper pulse. The hopper counts the hopper’s pulses sent from
the EEPROM chip on IN3 (pin 12), while dispensing the coins at the same time. When the amount of
hopper pulses equals the coins dispensed through the coin-counting optical sensor, the hopper turns itself
off.
8.
The changer returns to the standby mode with the decimal point flashing once per second until another bill
is inserted.
Functional Descriptions of Out-of-Service Conditions
Out-of-Service conditions occur for the Series AC2002/2002.1 changer for the following reasons: low coins,
hopper error, validator error, or a blown fuse.
1. Blown Fuse : an AC power spike in line voltage or a bad transformer on the main logic board can cause a
blown fuse on the main logic board. If either fuse blows, the indication is the green LED on the main logic
board will not light.
a. Replace the fuse. If the green LED now lights, then there was a spike.
b. If it does not light and the fuse blows again, the power transformer is shorted. To test the
transformer, use a voltmeter set for ohms and measure across the primary (40ohms) and the
secondary (1.5ohms).
2.
Hopper Error : A hopper error can either be a jammed hopper, a blocked coin-counting optic, or a bad
hopper logic board.
a. Indications for a jammed hopper are that the changer accepts bills and the meter counts up, but
nothing or not enough coins are paid out.
1. After two minutes, the EPROM shuts off the validator if the coins are not paid out correctly. The
“Empty” LED will flash once per second.
2. At this point, the three options open are to attempt repair on your own, call your distributor, or
return the defective hopper to American Changer.
b. Indications for a blocked coin optic or bad hopper logic board are that the out-of-service LED on the
outside of the changer is lit and the red LED on the main logic board is lit and flickers off once per
second.
1. If two of the 3 green LEDs on the hopper logic board are lit, then the hopper logic board is bad.
2. If there is a coin or foreign object caught in the coin exit window, LEDs #1 and #3 will be lit on
the hopper logic board instead of LEDs #1 and #2.
a. Remove the side of the hopper with the five Philips screws. Pull up on the exit window logic
board and look for the jammed item.
b. Ensure you have the pins aligned before reconnecting the logic board.
3. Validator Error : When a validator error occurs, the validator’s EEPROM shuts down the validator and
flashes an error code via the red LED on the validator logic board. When there is no error, this LED is on
steady. The validator only gives bill pulses to the Main Logic Board, so the main board never knows if the
validator is not functioning. Therefore, the out-of-service-LED will not light. See the Troubleshooting
Guide in this manual for error codes.
4. Low Coins : The low-coin condition is probably the most common error. The EEPROM on the main logic
board is constantly checking for low coins in the hoppers. This is done with a low current 5VDC signal on
pin #3 of the hopper’s output connector. The voltage then travels down the hopper’s wire harness on the
white wire to pin #7 of the hopper’s plug. The signal is applied to one of the gold low-contact plates at the
bottom of the hoppers. The 5V travels through the coins through the other contact brass plate to the
hopper’s pin #2. It then goes through the black wire in the hopper’s harness to pin #10 on the main logic
board. Any interruption of more than 1/2 a second will cause an out-of-service condition.
a. Clean the bottom brass plates of the hoppers with steel wool or fine sandpaper. Refill the hoppers and
try again.