Using your Adtec Digital RD - 70 Multi - Codec Decoder Receiver is easy. First, make sure you connect it to the correct power supply included in the package. Plug the power cord into the device and then into a proper electrical outlet. When using, place it in a well - ventilated area to prevent overheating. Avoid exposing it to extreme temperatures or moisture. For maintenance, clean the exterior of the device with a soft, dry cloth regularly. If you encounter any issues, consult the user manual or contact customer support.