Basic HTML Version
SPECIAL (GENERAL PURPOSE) SOLENOID CIRCUIT
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FLASHER
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POWER DRIVER BOARD
J128
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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 "B" causes a low at point "C". When point "C" is low, the
coillflashlamp 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.
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The microprocessor toggles the output of the 74LS374. When point "A" is low, point "B" the collector of
the 2N5401 transistor, is high. Once point "B" 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.
FLASHLAMP CIRCUIT
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J128
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