Wireless receiver 1.Memory function 2.AC220V 3.4ch with case 4. ... led will flash slowly, press the “Learn” button on the receiver board when the led is off, keep pressing until the ... led is on, then release, indicating the receiver is ready and waiting to learn from transmitter. c) Press ... 5. Wiring diagram: 6. Packing: DL-CS4012LM Memory function Wireless receiver