This is the user manual for the FW-C330 Mini Hi-Fi System, describing the features and characteristics of the product.

SCALANCE is a new type of active network component for building integrated networks. It includes SCALANCE X industrial Ethernet switches, SCALANCE W industrial wireless LAN, and SCALANCE S industrial security mechanisms. These products feature high performance, scalability, and security, making them suitable for harsh industrial environments.

S7-200CN is a small controller launched by Siemens. It has flexible combination and customization functions, which can meet different application needs and budgets. S7-200CN has 5 CPU models, the maximum supports 24 digital inputs and 16 digital outputs, and has 2 built-in analog inputs and 1 analog output. S7-200CN can also expand digital input, digital output, analog input, analog output, position control, weighing, communication and other modules.

3NE semiconductor protection fuses are Siemens' protectors for variable-frequency drives and soft starters. They offer very fast switching speeds and reliable short-circuit protection. 3NE semiconductor protection fuses have a unique design that integrates semiconductor protection and line protection, which greatly reduces costs, space and installation costs. 3NE semiconductor protection fuses have a rated current of 1-1200A and have high frequency cyclic load capability, which can ensure long-term operation.

DLQ-900-16 electric heater is a product provided by Changhong Technical Service Center. This product adopts a fan-shaped design and has remote control, oscillation, and power adjustment functions. The structure consists of a control circuit, column, and head. The head contains a heating component. The circuit structure adopts infrared remote control technology, which allows remote control operation within a range of 7 meters. The troubleshooting chapter describes the troubleshooting method for the power failure of the electric heater.