Basic HTML Version
FLIPPER COIL CIRCUITS
LEFT FLIPPER CIRCUIT
RIGHT FLIPPER CIRCUIT
POWER DRIVE~ BOA~D
POWER DRIVER BOARD
J120
LOWER
YELLOW-GREEN
RICHT
ORANGE -GREEN HOLD
FLIPPER
YECLOW-VIOLE1'
POWER
ORANGE-VlOLE1'
HO~
LOWER
LEFT
1--------'-="---+--+--+------'
FclPPER
J102
GROUND
ORANCE
6 ~
I-__:;_c:.:.:.;"'--j---'---j
7
7
LEFT CABINET
f-
F_4_L:.;;.O-,WE:_.R---+_8L_U_E-_GR_AY---+~
~
OPTO BOARD
Fe UPPER
BLACK-BLUE I;
W
J'
'-
....J
CPU BOARD
J211
J212
LOWER ••EFT
~="'___+--,
E.O.S. SWITCH
LOWER RIGHT
E.O.S. SWITCH
UPPER LEFT
[0.5.
SWITCH
UPPER RIGHT
E.O.S.
SWITCH
FLIPPER ENO-OF-STROKE SWITCH CIRCUIT
r------------------l
Dedicated Input
I
+5V
r
+12V
I
SWITCH A B
I
9
I
~O~P~E~N=4~H~H~~
I
IK
I
CLOSED L L
I
J208
I
I
I
B·
ACK-XXX
X 1--'----'-''-'"'=-----0
I
I
I
I
I
I
I
CPU BOARD
I
I
I
I
L
J
ORANGE
PLAYFIELD
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