Basic HTML Version
SWITCHES
Dedicated
Grounded
Switches
Orange-Brown
J205-1
Lett Coin
Chute
01
oran~ad
J205-
Center Coin
Chute
D2
Orange-Black
J205-3
Right Coin
Chute
D3
Orange-Yellow
J205-4
4th cain
Chute
D4
Orange-Green
J205-6
Normal 'Toot
Funotion
I
Function
=~5
Oranr-Blue
J205-
Normal 'Toot
Function
I
Function
VoIu •••
~
-,
~=Vlolat
No<mal 'Toot
~unction
I
Function
.:-
,Up
D7
Orange-Gray
J205-9
Norma'
, Toot
Function
I
Function
~t'
,En-OS
---Q
'-0
14
Whne
Green
1
2
3
4
5
6
7
8
9
GrMn-
Oreen-
OrMn-
GrMn-
GrMn-
Green-
GrMn-
Green-
Vlolet-
Brown Red Orange Yellow Bleck
Blue
Violet
Gray
Whne
J207·1 J207·2 J207-3 J207-4 J207-5 J207-41 J207-7 J207-9 Ql1
U20-18 U20-17 U20-16 U20-15 U20-14 U20-13 U20-12 U20-11 J5-1
Flipper
Grounded
Swnches
Black-Green
J906-1
Lower Right
E.O.S.
Fl
Blue-Violet
J905-1
Lower Right
Oplo
F2
Black-Blue
J906-3
Lower Len
E.O.S.
F3
Blue-Gray
J905-2
LowerLell
Opto
F4
Black-Violet
J906-4
Upper Right F5
E.O.S.
Black-Yellow
J905-3
Upper Right
o
0
F6
Black-Gray
J906-5
Spinner'
F7
Black·Blue
J905-5
Not Used Fa
H L Off
L H On
'siMiilEn
71IEDEXT 6EDERJlUIID 3-2
E
Off
On
Buy·ln Slam
Button Till
Whn••
Right
Red
Fire
J209-2 Button
2 U18-9
Whn••
Start
Orange
J209-3 Bullon
U18-5
Whn••
Plumb
Yellow Bob
J209-4 Tilt
4 U18-7
14
Whn••
leI!
Green Outlane
J209-5
5 U19-11
15
Whn••
leI!
Blue Return
J209-7 lane
U19-9
16
Whn••
Right
VIolet
Return
J209-8 lane
7 U,9-5
17
Whn ••
R~hl
Gray
J209-9 Ou ane
8 U19-7
18
Time Not Used
L
H
The microprocessor is constantly strobing the column side of the switch. When point "A" on the column circuit toggles low
the column side is active.
74
84
leI!
2X
Shuttle
75
65
Top
R~~ht
lane
Left
Shutt1e
76
B6
96
Made Left Gun
Right
Home
Ramp
87
97
Right
Shooter
Top
Enter
Not Used
OUter
lane
left
lOOP sa
68
Right 78 Rampss
98
When a switch closes the row side of the circuit activates. The" +" input to the LM339 drops below +5V therefore its output
is low. Corresponding row and column switches must be low at the same time, for the switch to be considered closed by
the microprocessor.
When the switch opens, the "+" input to the LM339 is above +5V, its output is high and the row is
inactive.
°Note:
Used as switches other than flipper switches in this game.
b//d
= Opto Switch
Switch
Matrix Circuit
~----------------------------,
:
CPU BOARD
+12V,
Column
A
Column (example)
H
L
Inactive
Active
+5V
,
,
, White-XXX
Row
C
D
74lS240
1470Pf
Switch Open
H
Switch Closed L
Row (example)
I
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