从录像机的故障情况看,约半数以上的机器在检修时都要涉及到检测系统。录像机的检测系统大体上可分为七部分:(1)磁带位置检测;(2)状态检测;(3)带头带尾检测;(4)磁鼓旋转检测;(5)收带盘旋转检测;(6)防误抹检测;(7)磁鼓结露检测。这些检测装置的输出信号被送往微处理器,当微处理器的某一检测端口接收 From the video recorder fault situation, about more than half of the machines involved in the maintenance of the inspection system. VCR detection system can be divided into seven parts: (1) tape position detection; (2) state detection; (3) head band tail detection; (4) drum rotation detection; (6) anti-wiping detection; (7) drum condensation test. The output signal of these detection devices is sent to the microprocessor, when a detection port of the microprocessor receives