Star Tech Journal

17
STAR*TECH JOURNAL/JULY 1982
NON-CONTROLLED SOLENOIDS
--i.---
' ~ - . , a - - - - - L•:::::
l
-
l
+24VDC
TYPICAL
ACTIVATION
SWITCH
FLIPPER
'-----END-OF-STROKE
2AMP
POP BUMPER
DRIVER BOARD
AB
J1
~ 6 .--GND
• s .... +svoc
• 4
• 2
• 1
-
TYPES
1. Flipper
2. Kicking Rubbers
3. Pop Bumpers
PROBLEMS
1. Non-controlled solenoids
inoperative; controlled
normal:
a. Tilt relay (T)
b. Game over relay ( Q)
2. Flipper coils bum out:
a. End-of-Stroke switch
closed.
3. Flipper power weak:
a. End-of-Stroke switch open
or dirty.
b. Bad coil/voltage.
COIL REPLACEMENT TIP
When replacing a prematurely
burnt flipper coil, don't forget to
adjust the end-of-stroke switch.
When a flipper is energized and
the end-of-stroke switch does
not open up, the coil will heat
up and eventually burn. The
end-of-stroke switch contacts
should open approximately
1/16" before full plunger stroke.