Jet SPACE BALLZ - Main Board Inputs and Outputs

MAIN BOARD INPUTS
5
TICKET SIGNAL # 2
6
BALL DROP BUTTON
COIN ACCEPTOR
BILL ACCEPTOR
TICKET RESET
TICKET SIGNAL # 1
1
2
3
4
SPACE BALLZ - MAIN BOARD INPUT CHART
IC
PICTURE
CONTENT
INPUT #
18
BONUS HOLE SWITCH
13
SCORE SWITCH # 5
14
SCORE SWITCH # 6
15
SCORE SWITCH # 7
10
SCORE SWITCH # 2
11
SCORE SWITCH # 3
12
SCORE SWITCH # 4
7
INSTRUCTION BUTTON
8
9
SCORE SWITCH # 1
21
32
U08
U09
U10
U11
28
29
30
25
26
27
22
CRANE - LEFT SWITCH
23
CRANE - RIGHT SWITCH
24
BONUS STOP SENSOR
19
BELT SWITCH # 1
20
BELT SWITCH # 2
21
16
SCORE SWITCH # 8
17
SCORE SWITCH # 9
U11 IS NOT UTLIZED IN SPACE BALLS. THIS
SPARE IC CAN BE USED IN U08,U09, & U10
TO RECITFY POTENTIAL ISSUES WITH
THOSE IC'S. IF YOU SWAP IC'S, BE SURE TO
PUT THE DEFECTIVE IC BACK INTO U11
BEFORE POWERING THE UNIT ON. IF THIS
FIXES YOUR PROBLEM, BE SURE TO
RECORD THAT THE IC IN U11 IS NOW
DEFECTIVE AND CANNOT BE USED AGAIN
IN ANOTHER SOCKET
Jennison Entertainment Technologies Space Ballz Service Manual Page 49