Basic HTML Version
FLIPPER CABINET SWITCH CIRCUIT
POWER DRIVER
'6
{3
GRAY-YELLOW + 12V
[3JJ116
BOARD
L7
7-
ORANGE
GROUND
6
LEFT FLIPPER
L ~
3
FLiPTRONIC II
4-
BLLE-GRAY L. LEFT FLIPPER F4
2
2
BOARD
OPTO BOARD
J1
1
1
BLACK-BLUE M. LEFT FLIPPER F8 5
-
-
J905
RIGHT FurPER ~
~
3 f -
ii
BLUE-VIOLET L. RIGHT FLIPPER F2 1
OPTO BOARD
Jl 1
1:
BLACK-YELLOWU.
LEFT FLIPPER F6
3
~
-
IFUPTRONIC
11-
1
BOARD
J905
I
FLIPPER OPTO BOARDS
(U4B-7)
3
I
BLACK-YELLOW F6
F2 LOWER RIGHT FLIPPER
I
BLUE-VIOLET
F6 UPPER LEFT FLIPPER
(U6B-7)
F2
F4 LOWER LEFT FLIPPER
F8 MIDDLE LEFT FLIPPER
(U4D-11)
BLUE-GRAY F4
2
(U6D-ll)
5
I
BLACK-BLUE F8
I
ORANGE
i
L__ ..:-_ ___
_j
r-----------
- --- l
I
FLiPTRONIC II BOARD +5V
I
I
+12V
I
I
T
I
I
1 KO
I
I
I
I
I
,--- -- ----- ,
I
FLIPPER OPTO BOARD
I
I
J
1
I
I
I
I
I
I
I
I
I
I
Dedicated Input
ORANGE
4700
L
~ __
J
!POWER DRIVER-BOARD -
I
!
+
12V
J
116
I
-,-
GRAY-YELLOW
L
.J
The flipper switch circuits operate similar to the dedicated switch circuit. The circuits are active low and
tied to ground through the switch circuit.
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 +SV, its output is high and the row, (dedicated Input) is
inactive.
3-13