Basic HTML Version
Flipper Cabinet Switch Circuit Diagram
"6
Gray-Yellow +12V
71--
3r-_..
2.r~.!:..._-l'!:.Q1lnd
----0
4
h
Blue-Gray
L. Left Fliooer F4 2
J1 ~ ~
I
Black-Blue U. Left Flipper Fa
5
~ ~ I
~----------------~
I
'6~
7
I
3~
4
ID
J116
POWER DRIVER BOARD
FLIPTRONIC II
BOARD
LEFT FLIPPER OPTO
ASSEMBLY
RIGHT FLIPPER OPTO
ASSEMBLY
1
2
-
Blue-Violet
L. Right Flipper F2 1
Black-Yellow U. Right Flipper F6
3
J905
Flipper Cabinet Switches
F2 Lower Right Flipper
F6 Upper Right Flipper
F4 Lower Left Flipper
Fa Upper Left Flipper
r - - - - - - - - - - - -I
I
FLIPTRONIC II
J905
I
I
BOARD
FLIPPER OPTO
ASSEMBLIES
r - - - - - - - - - - - - - - - - - - - - - -
--I
I
FLIPTRONIC II
+5V
I
BOARD
0
I
I
Blue-xxx
I
Black-xxx
I
Cabinet Switch
----------------,
:
FLIPPER OPTO ASSEMBLY
1
Switch
H
L
H Off
L On
A
B
Open
Closed
Dedicated Input
1-
~
.J
470n
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, tha "+. input to the LM339 is above +5V, its output
is high and the row (dedicated input) is inactive.
INDIANA JONES 3-13