Basic HTML Version
FLIPPER COIL CIRCUITS
LEFT FLIPPER CIRCUIT
,-----------1
I
I PLAYFIELD
I
I RED-BLUE
IRED-GRAY
I
I
J901
LOWER
LEFT
FLIPPER
YELLOW-BLUE POWER
ORANGE-BLUE
HOLD
YELLOW-GRAY POWER
ORANGE -GRAY HOLD
FLiPTRONIC II
BOARD
L
_
RIGHT FLIPPER CIRCUIT
, - -------- - -1
I
I
I
J901
I PLAYFIELD
I
1
I
I
IRED-GREEN
I
3
IRED-VIOLET
I
I
I
YELLOW-GREEN POWER
LOWER
RIGHT
FLIPPER
ORANGE -GREEN HOLD
YELLOW-VIOLET POWER
ORANGE -VIOLET HOLD
J906
FLiPTRONIC II
BOARD
FLIPPER END-OF-STROKE SWITCH CIRCUIT
,----;-]
RIGHT FLIPPER FLiPTRONIC II
RIGHT FLIPPER
I
BOARD 1
I
BLACK-GREEN (U4A-5)
F1
LEFT FLIPPER
I
4
I
BLACK-VIOLET (U6A-5)
F5
LEFT FLIPPER
I
(
)
I
J906
I
BLACK-BLUE U4C-9 F3
0
I
5
I
BLACK-GRAY (U6C-9)
F7
0
I
LO~R~A~N=G=E
~
I
~------- - -------I
I
FLiPTRONIC II BOARD +5V
I
+12V
I
I
I
I
PLAYFIELD
I
J906
I
I
X BLACK-XXX
I
I
I
Dedicated Input
~
I
L
~
The flipper E.O.S. circuits operate similar to the dedicated switch circuit.
tied to ground through the switch.
F1 LOWER
F5 UPPER
F3 LOWER
F7 UPPER
L
J
o
SWITCH A B
OPEN H HOFF
CLOSED L
L
ON
The circuits are active low and
When a switch closes, the row side, (dedicated input), of the circuit activates. The
"+"
input of 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.
3-12