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Ticket Machine Signal Feedback
- Nov 21, 2016 -

Motor running zhihou, will through mechanical drive of role put Lottery sent out, dang Lottery from light control switch in the moved obsolete, through Lottery Shang semicircular gap of role, will in light control switch of output end produced intermittent of pulse voltage, this voltage signal after anti-phase device 40106 pour phase Hou into transistor 1815 of base very, again by pour phase Hou from set electrode output feedback signal, LED1, and regulator tube 5V1 and resistance R5 composition feedback signal indicates circuit, dang normal out votes Shi, LED1 lamp with output signal flashing, A flashing cycle represents the output of a feedback signal.