Basic HTML Version
Flashlamp Circuit
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a_war_wi
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POWER DRIVER BOARD
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DRIVE
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J12S[
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Floshlomp
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Black-XXX
680
Jl1J
4700
2.7KO
LS374
J107
Red-White
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,
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POWER
15.000,..f
1
The microprocessor toggles the output of the 74LS374. When point "A" is low. point "6" the collector of the 2N5401 transistor is
high. Once point "6" is high. point "C" the collector of the TIP1 02 transistor is low. When point "C" is low the flashlamp is grounded
through the transistor and the flashlamp turns On. When point "A" toggles high the circuit shuts Off.
Special (General Purpose) Solenoid Circuit
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POWER DRIVER BOARD
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J121
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100,..f
10KD
SOV
POWER
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The microprocessor toggles the output of the 74LS374. When point "A" drops low. point "6" is high. A high at point "6" causes a
low at point "CO, When point "C· is low the coiVflashlamp is grounded through the transistor and the coiVflashlamp turns On. When
point "A" toggles high the coiVflashlamp turns Off.
'Tieback Diode is not used for flashlamp circuit.
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