红外传输：U13 CD4060B 通过外接晶振电路在第9 端产生一路频率为38KHZ 的方波信号作为调制信号，输入与门U14A 74HC08 的2 端；另一路为需发射的数据，它通过DO14 端输入与门U14A 74HC08 的1 端。输入的数据在与门调制，在其输出端形成调制后的数据波，从而通过Q2 S8050 控制红外发光二极管D13以38KHZ 的频率发出红外光。Q3 1736 为去调制波的红外接收器，它去掉38KHZ 的调制波，解调成原始的输入数据信号，通过3 端输出至U14B 74HC08 及U5B 74HC14 的驱动整形，连接至DI9。-Infrared transmission: U13 CD4060B through an external crystal oscillator circuit all the way in the ninth end to produce a square wave signal 38KHZ frequency modulated signal as input AND gate U14A 74HC08 the two ends　another way for the need to transmit data, it ends by DO14-input AND gate an end U14A 74HC08' s. Data input in the AND gate modulation data is formed at its output end of the modulated wave, the frequency of 38KHZ thereby emits infrared light through the control of the infrared light emitting diode Q2 S8050 D13. Q3 1736 to go to the modulation wave infrared receiver, which removes the modulation wave 38KHZ, the demodulated into the original input data signal output to the end by 3 U14B 74HC08 and drive shaping U5B 74HC14, the connection to DI9.