Page 139 - Tales of the Arabian Nights

Basic HTML Version

View Full Version

Table of Contents

Page 138

Page 140

SPECIAL (GENERAL PURPOSE) SOLENOID CIRCUIT

,------------------------[

I

Drive

Jl09

I

I

~~-----------.

Blue -XXX

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

Power

I

L

~

FLASHER

or

COIL

POWER DRIVER BOARD

J128

100ml

100V

The microprocessor toggles the output of the 74LS374. When point "A" is low, point "8" the collector of the 2N5401

transistor , is high. A high at point "8" causes a low at point "C". When point "C" is low, the coil/flashlamp is

grounded through the transistor and turns on. When point "A" toggles high the coillflashlamp turns off.

• Tieback diode is not used for flashlamp circuit.

+

Red -White

The microprocessor toggles the output of the 74LS374. When point "A" is low, point "8" the collector of the 2N5401

transistor, is high. Once point "8" is high, point "C" the collector of the TIP102 transistor is low. When point "C" is

low, the flashlamp is grounded through the transistor and turns on. When point "A" toggles high, the current shuts

off.

D19 021

FLASHLAMP CIRCUIT

~-~---------------------

- l

I Drive

vee

I

I

I

I

I

I

X

I

I

I

I

I

I

I

I

I

I

I

I

I

~D

I

I

I

Power

-= -

-=-

L

J

POWER DRIVER BOARD

J128

I

Block -XXX

I

I

:FLASHER

I

I

I

Red-W hite

3-9

Planetary Pinball Supply, Inc