This is a safety manual that mainly introduces the use precautions of this product, including do not use the product near water, do not use wet cloth to clean, do not block the ventilation openings, do not install the product near heat sources, do not damage the power plug, etc.
The Yamaha IMX644 is a digital installation mixer designed for professional audio applications. This manual provides essential safety warnings, including precautions against electric shock and fire hazards, and instructions on proper installation and ventilation to prevent overheating. It emphasizes the importance of using only specified accessories and following grounding procedures.
The manual states that you must only use the voltage specified as correct for the device.