Basic HTML Version
High Power Solenoid Circuit
DRIVE
POWER
Power
Driver Board
Power Drtver Board
To
CPU
Board
The microprocessor toggles the outpot of the 7415374. When point "A"drops low, point "B" the collector of the
2N5401 transistor is high. A high at point "B" causes point ..
c..
the collector of the TlPI02 transistor, and
point "D" the emitter of the TlP36 transistor to drop low. When point "D" is low the coil is grounded through
the transistor and the coil turns On. The coil shuts Offwhen point "A"toggles high.
Low Power Solenoid Circuit
DRIVE
POWER
1
__
-
J 1 2 Playfteld
1
Jl07
1
1
To
Transformer
Secondary
A
4700
Power Dr1ve:r Board
The microproc essor toggles the outpot of the 7415374 . When point "A"is low, point "B" the collector of the
2N5401 transistor is driven high . A high at point "B" turns On the TlPI02 transistor and causes point ..
c..
to
drop low. When point ..
c..
is low the coil is grounded through the transistor and the coil turns On. The coil
shuts Off when point "A"toggles high.
Special (General Purpose) Solenoid Circuit
DRIVE
POWER
Power
Drwer
Board
Power Drtvt:r Board
* *Playf ieldCir cuit When used for coil driver only (either +50Vor +20V). lfused
for flasblamp driver see playfield circuit below. Ti eback Diode is no t used for
flashlamp circuit .
The microprocessor toggles the output of the 7415374. When point "A"drops low, point "B" is high . A
high at point "B" causes a low at point '·C". When point ..
c..
is low the coil/flashlamp is grounded
through the transistor and the coil/flashlamp turns On . When point "A"toggles high the coil/flashlamp
turns Off.
The Getaway 3-8