Electronic games schematic circuit

  
Today, we share a principle circuit of electronic games. The main circuit in accordance with the host through the IC2 reset press SB2, VD1A-VD9A not light. Prizes (for example 5) Which position by the number of people pointing Dot Award, the host closing the
Electronic games schematic circuit - schematic

switch S5 so VD5B shine. Then dot award presses SB1, IC3 energize play "Kung Hei Fat Choi" a congratulatory speech. At the same time start-up oscillator circuit, a pulse signal is applied to IC2 CP end, VD1A-VD9A clockwise quickly flashing. When you release the SB1, IC1, IC3 because the power supply is cut off and stop working. At this time, VD1A-VD9A only one is lit or completely extinguished. If you happen to be VD5A lit it and VD5B in the same position on the light emitting point prize success. As shown below.




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