Basic HTML Version
Flipper Cabinet Switch Circuit Diagram
RIGHT FLIPPER OPTO
ASSEMBLY
POWER DRIVER BOARD
J905
LEFT FLIPPER OPTO
ASSEMBLY
H--+-=~=--""'-lo2!!.J::!!Jo!Io!S!.L....!....:~2
FUPTRONIC II
rT-+==~==_~~~~~F~8~5
BOARD
Blue- Violet
Flipper Cabinet Switches
F2 Lower Right Flipper
F6 Upper Right Flipper
F4 Lower Left Flipper
Fa Upper Left Flipper
r - - - - - - - - - - -
-I
, FLIPTRONIC II
J905 ,
'BOARD
~~~~~~~~~~
FUPPEROPTO
ASSEMBUES
r - - - - - - - - - - - - - - . - - - - - - - - --.
, FUPTRONIC II
, BOARD
----------------,
: FUPPER OPTO ASSEMBLY ,
Csbln,t Switch
1K
Switch A
H Off
L On
B
Open H
Closed L
POWER DRIVER BOARD ,
The flipper swHch 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 to the LM339 drops below +5V
therefore its output is low. Since the row (dedicated input) clrcult 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.
DEMOLITION MAN 3-13