| 摘要 |
PROBLEM TO BE SOLVED: To prevent the disadvantage for the players attributed to the careless missing of the control signal by realizing the backup function with a simple hardware structure. SOLUTION: As with a drop in the power source voltage, the monitoring voltage falls down to the prescribed level, a power source monitoring circuit outputs the power source shut-down signal of a low level to a put-out control board. When receiving the power source shut-down signal, the CPU for the put-out control outputs the power source shut-down confirmation signal of a low level to the main board and after the standby period passes, the processing for the stoppage of the power supply is executed. When receiving the power source shut-down confirmation signal, the CPU of the main board executes the processing for the stoppage of the power supply. Since the standby period passes after the CPU of the main board starts the processing for the stoppage of the power supply, the processing for the stoppage of the power supply by the CPU for the put-out control begins after the start of the processing for the stoppage of the power supply by the CPU of the main board. COPYRIGHT: (C)2005,JPO&NCIPI
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