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八、带盒舱传动不正常引起自动保护停机实例1 福奈VIP—1000放像机。接通电源后,无法送入磁带,按各操作键均不起作用根据故障现象可知,此故障与系统控制电路采取保护措施有关。系统控制微处理器要按正常程序执行除了需要正常工作电压外,还需接收正确的机械工作方式检测开关信息和带舱开关信息。 VIP—1000放像机的磁带盒装入和排出的检测采用机械方式。磁带盒是否装入,由装在带舱右下侧的带舱开关进行检测,带舱开关由两个开关串联组成:一个开关是在带盒舱按下到位时接通;另一个开关在装入
Eight, with a box drive is not normally caused by automatic protection down Example 1 Fu Na VIP-1000 player. After the power is turned on, the tape can not be fed and does not work according to the operation keys. According to the fault phenomenon, this fault is related to the protection measures taken by the system control circuit. System control microprocessor to be executed in accordance with normal procedures in addition to the need for normal operating voltage, but also need to receive the correct mechanical mode detection switch information and information on the switch with bay. VIP-1000 player tape cassette loading and discharge detection using mechanical methods. The tape cassette is loaded and tested by a cassette switch mounted on the lower right side of the cassette compartment. The cassette switch is composed of two switches connected in series: one switch is turned on when the cassette compartment is pressed down and the other is on Into