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(7)其他电路:IC1(39)、(40)脚为I~2C总线控制输出端,用于控制存储器IC2(24C02),(39)脚为时钟线,(40)脚为数据线。 IC1(35)脚为遥控信号输入端,遥控器发射的遥控信号经接收器接收后加至该脚。在IC1(8)脚与(20)脚接一个二极管,使系统功能设定为自动调谐步进速度:80％。 IC1(12)脚输出AV/TV切换信号,经Q4、Q2转换后加至中放电路IC4的④脚。
(7) Other circuit: IC1 (39), (40) feet for I ~ 2C bus control output for control of memory IC2 (24C02), (39) is the clock line for the foot, (40) is the data line. IC1 (35) feet for the remote control signal input, the remote control transmitter remote control signal received by the receiver added to the foot. Connect a diode to the IC1 (8) pin and (20) to set the system function to auto-tune the step speed: 80%. IC1 (12) pin output AV / TV switching signal, after Q4, Q2 added to the release circuit IC4 pin ④.