Using your Adtec Digital RD - 70 Multi - Codec Decoder Receiver is easy. First, connect it to a power source using the provided power supply. Make sure the power supply is properly plugged in and matches the device's requirements. When using, place the device in a well - ventilated area to avoid overheating. To maintain it, keep it clean by gently wiping the exterior with a soft cloth. Don't expose it to extreme temperatures or moisture. If you encounter any issues, check the connections first and then contact customer support.