6-way infrared remote control circuit without debugging

The remote control introduced in this article consists of two parts: transmitting and receiving. The transmitting circuit takes LC2190 as the core, K1-K6 as the coding switch, and C2 as the pulse interval timing capacitor. The modulated coded signal is output from IC1① pin and amplified by BG1 tube, and then emitted by its load infrared light-emitting diode. The principle is shown in Figure 1. The receiving circuit is shown in Figure 2. The encoded signal transmitted by the remote control is processed by IC2 CX20106 and sent to LC2200 for decoding and then output to control the loads of each channel. A~F are the corresponding K1~K6 control output terminals. In the circuit, only the control execution circuit of circuit C is drawn, and the other control circuits are the same. The circuit can be put into operation without debugging.