Basic HTML Version
FLIPPER COIL CIRCUITS
LEFT FLIPPER CIRCUIT
POWER DRIVER BOARD
I
PLAYFIELD
POWER
t~~lR
r-
"'HO"'LD"-----I_t--.._~
FLIPPER
I
, .no?
L.~~------------------~
YEl.LOW-GRAY
POWER
ORANGE-CRAY
HOLD
CPt: BOARD
ORANGE
J211
.J212
6 ~7
LEFT CABINET
"LOWER
BLUE-GRAY
'OPTO BOARD
~F8~U~PP~E-R-~B-~-C-K---BL-U~E ~
2
Jl
GROUND
LOWERLEFT
COS
SWITCH
UPPER LEFT
E.OS SWITCH
RIGHT FLIPPER CIRCUIT
POWER DRIVER BOARD
nOB
PL/WFIELD
YELLOW-VIOLE;
POWER
ORANGE-VIOLEl
HOlJ
J102
Cpu BOARD
.;211
J212
GROUND ORANGE
6
f6h
r------f-----j,
I?
f-J
RIGHTCABINET
F2 LOWER BllJE-VIOLET
.l
il·
'b
OPTO BOARD
r------+--~ ~:
i -:
r-F6_U_P~PE~R_~B~~C~tuLllu=;=i_J_'
~
LOWER RIGHi
r.o.s.
SWITCH
UP!=I:R RIGHT
E.0.5. SW ITCH
FLIPPER END-OF-STROKE SWITCH CIRCUIT
~---
--------
~
Jedicoted Input
I
+5V
I
: Ej
1.K
r--0-'-12V
I
H.CT24
1OK
~
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I
~
I
J2Cl8
I
il
!~~:
A ('--
-1-N4.1~4-8_____jX
I
I
til
I
!
LM339
4 70p;
l'
I
I
I
I
CPU BOARD
I
I
I
L
_
SWITCH
I
A
i
OPEN
II-!
I
B\
HOFF
CLOSEDiL
L ON
BLACK-XXX ~
I
!
PLAYFiELO
ORANGE
__j
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.
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