Jet SPACE BALLZ Service Manual page 57

PROBLEM
Tickets not dispensing
1) Machine is out of tickets
2) Operator did not push the proper button
to dispense tickets after ticket refill
3) There is a fault between the main board
output and the ticket dispenser
4) There is a faulty ticket PCB
5) There is a faulty score switch input IC
Incorrect ticket amount being dispensed
1) Dip-switch settings set incorrect
2) One of the score switches are faulty
Jennison Entertainment Technologies
SPACE BALLZ TROUBLESHOOTING GUIDE
CAUSE
1) Machine is out of tickets. Replace tickets and ensure they are properly fed
into the ticket dispenser.
2) Push the black ticket reset switch. If tickets are properly loaded into each
ticket dispenser, push the black ticket reset switch located next to the
coin/ticket meters. This will send a signal to the board to pay out all owed
tickets. Always push this switch after refilling tickets in the machine.
3) Check the connections between the ticket dispensers and the ticket PCB.
Check to make sure that there is 12 volts going to each ticket dispenser.
Further check to make sure the connections on the board between the
control center and the main cabinet are properly seated and all pins secured.
There is a possibility that these pins could become loose if someone recently
moved the machine by pulling on the control center or if the control center
was recently detached from the main cabinet.
4) There is a faulty ticket PCB. If all connections are good and there is
continuity on both ticket outputs from the main board to the ticket
dispensers. You may have a faulty ticket PCB. If the issue is on one side, swap
the ticket PCB from the working side and check to see if that resolves the
problem. If YES, replace the ticket PCB. If NO, continue below.
5) There is a faulty input IC controlling on the score switch. If both ticket
PCB's are operating properly - then the main board may not be getting the
input pulse from the score switch. Refer to the input chart on page 49 of this
manual and replace the appropriate input IC's that control the score inputs
(U09 & U10).
1) The most common reason why the wrong ticket amount is being awarded
or dispensed is because the dip switch bank is set improperly. Be sure to
check that Bank # 1 / Switch # 2 (1.2) is set to the following:
For 1:1 Payout - Set switch 1.2 to ON
For 1:2 Payout (50% of the displayed value - for 2 point tickets) - Set
switch 1.2 to OFF
2) If a player is getting the same amount of tickets regardless of which score
state that the ball falls into - chances are that there is a stuck score micro
switch on one of the 9 score states. First check to see what value of tickets
are being awarded. For example, if a player wins 10 tickets when a ball falls
into a score channel with a value of 5 - check to make sure that all # 10
switches are properly functioning and that the metal switch wire is not
engaged or bent. It is possible on units where the switches are mounted in
the floor of the collection area, to have the switch wires get stuck either on
top of the cabinet or in the wires directly below the hole opening.
Space Ballz Service Manual
SOLUTION
Page 57