Basic HTML Version
FLIPPER COIL CIRCUIT
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r r
FLIPPER CIRCUIT
RIGHT FLIPPER CIRCUIT
PLAYFIELD
1-----------1
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I
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J901
I PLAYFIELD
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1
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I
IRED~GREEN
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3
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51-----*-----'
LOWER
YELLOW~GREEN POWER
RIGHT
f----'0:..:_:RA:..:..:N:_:_G=--E
~-=-G,-"R ::..:::EN--,----,-"HO"-"L,,,-D
--I---+'____J
FLI PPER
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J902
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9
YELLOW-BLUE
POWER
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7
O"ANG~ ~BLUE YOLD
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I
YELLOW~GRAY
POWER
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ORANGE~GRAY
HOLD
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I
: FLiPTRONIC II
I BOARD
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L
_
LOWER
LEFT
FLIPPER
YELLOW~VIOLET
POWER
ORANGE-VIOLET
HOLD
FLiPTRONIC II
BOARD
FLIPPER END·OF·STROKE SWITCH CIRCUIT
F1 LOWER RIGHT FLIPPER
IFUPTRONIC I~
F5 UPPER LEFT FLIPPER
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BOARD
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BLACK-GREEN (U4A-S)
F1
0
F3 LOWER LEFT FLIPPER
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I
BLACK-VIOLET (U6A-S)
F5
F7 MIDDLE LEFT FLIPPER
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4
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0
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J906
3
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BLACK-BLUE (U4C-9)
F3
0
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I
BLACK-GRAY (U6C-9)
F7
0
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ORANGE
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I
L ____
J
~---------------I
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FLiPTRONIC II BOARD +5V
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+12V
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I
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I
PLAYFIELD
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J906
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BLACK-XXX
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X
i-+-----D
:
6
t----t--'I
O'-'-'R'---.CAN-'--=G=E
__
----'
!
Dedicated Input
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L
~
SWITCH A B
OPEN H HOFF
CLOSED L L ON
The flipper E.O.S. 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 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