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3.12. HOPPER ASSEMBLY
The machine uses a Coin Controls 24V DC hopper assembly.
3.12.1.HOPPER OPERATION
Each disc contains a number of holes in which coins are held in short stacks. The motor drives the disc via
a gear train. As the disc rotates, the coin at the bottom of one of the stacks will make contact with the
ejector fingers and start to push the fingers back. Further rotation of the disc will cause the coin to start to
move outwards into the exit slot. At this point the spring will be free to pull the ejector fingers forward and
push the coin through the exit slot.
A LED transmitter and opto-receiver form an optical detector. The infrared light beam is routed across the
exit slot via a light guide. When coin passes through the exit the light beam will be broken and coin output
signal will be generated.
The hopper will automatically brake when power is interrupted, or machine placed in the off state, thus
preventing overrun and excessive coin payout.
An over current detection circuit reverses the hopper momentarily in the event of a coin jam, and then
attempts to continue payout. This oscillation of the disc will continue until either the coins are freed, the
hopper is switched off, or the overload trip switches. Should the latter occur the hopper supply must be
disconnected, the fault condition must be corrected and the trip be allowed time to cool (Approx. 30
seconds) before the hopper will start.
3.12.2.HOPPER ASSEMBLY FAULT FINDING
Coins fail to unjam
1. Ensure coin exit clear.
2. Ensure no incorrect coins or foreign objects are in the hopper.
3. Ensure no badly bent coins in hopper.
Clearing a coin jam
1. Open the Outer and Service doors to gain access to the Hopper area..
2. Detach the metalwork surrounding the hopper by removing the 2 screws and 3 nuts that hold it in
place.
3. Remove all coins from bowl.
4. Remove motor assembly from base.
5. Clear the jammed coin by either:
a. Rotating the disc manually first anti-clockwise then clockwise to free the coin.
OR
b. Push the coin back in using the edge of similar coin.
NB. Common cause is damaged or bent coins. Do not return damaged coins to bowl.
6. Remove any debris from the disc bed assembly.
7. Clean the exit window opto with a clean dry cloth.
8. Reassemble as described earlier.
9. Refill and test the hopper.
Motor fails to run.
1. Check 24v 5A fuse on the Hopper Drive Board.
2. Hopper over-current protective device tripped (Wait 30 seconds while supply off).
Over payout of coins
1. Check opto area/coin exit for dirt.
Under Payout of coins
1. Ensure hopper contains sufficient coins.
2. Poor connection (check common return wires) to hopper.
Summary of Contents for Club Kart Prize
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Page 85: ...84 10 3 SCHEMATIC DRAWING 1 SCHEMATIC DRAWING 1 HERE...
Page 86: ...85 10 4 SCHEMATIC DRAWING 2 SCHEMATIC DRAWING 2 HERE...
