Basic HTML Version
Flipper Cabinet Switch Circuit Diagram
POWER DRIVER BOARD
c:f
[ --3
- 4
J116
J905
LEFT FLIPPER OPTO SWITCH
BOARD
1-t--+...!::!!=-:="____'_'-'-"ill...L~.!3<L---'--'''-t2
FLiPTRONIC II
1-y--+...!::!!~~~~~~~~~Fa~5
BOARD
RIGHT FLIPPER OPTO SWITCH
J1
BOARD
Flipper Cabinet Switches
F2
F6
Lower Right Flipper
Upper Right Flipper
I
FLiPTRONIC II
I
BOARD
FLIPPER OPTO
SWITCH BOARDS
r-------- ·---- .
Blue-Violet
F2
F4 Lower Left Flipper
Fa Upper Left Flipper
Black- Yellow F6
Blue-Gray
- -- -- --------1
I
FLiPTRONIC II
I
BOARD
: Blue-xxx
J1
,Black-xxx
'
I--r-----+-_,
X f----,
Cabinet Switch
Switch
H
L
H Ott
L On
A
B
Open
Closed
Dedicated Input
+
~fr-----.:-
G~ra,..y_-,_,e""l1::=,ow!, _.'_
-j
61-- __ __,4y7y
O"Q"-----'
,
--- - --- :------ --,
POWER DRIVER BOARD
I
The flipper switch circuits operate similar to the dedicated switch circuit. The circuits are active low and tied to ground
through the switch.
When a switch closes the row side (dedicated input) of the circuit activates. The
"+"
input to the LM339 drops below +5V
therefore its output is low. Since the row (dedicated input) circuit is tied directly to ground through the switch, the switch
is considered closed by the microprocessor.
When the switch opens, the "+" input to the LM339 is above +5V, its output
is high and the row (dedicated input) is inactive.
Judge Dredd 3-23