1. The application standards for public broadcasting system machines should pay particular attention to the following matters. Prevent the machine from being used in natural environments with very low or very high temperatures, and prevent the sun from immediately shining on the surface of the machine for a long time. Prevent the use of machines in damp and cold natural environments to prevent electronic components from becoming ineffective or machines from rusting too early. Before application, it is necessary to ensure that the local power supply voltage matches the device.

2. Attention should be paid to the natural environment of the machine's application. Prevent the use of machines in natural environments with dust and its vibrations. Adequate clearance should be left around the machine to facilitate heat dissipation. For power amplifiers, attention should be paid to maintaining the unobstructed heat dissipation safety channel.

3. During the entire application process, attention should be paid to the order of startup and standby.

When starting up, first turn on external machine devices such as audio sources, and then turn on the power amplifier; To turn off the device, first turn off the power amplifier, and then turn off external machine devices such as audio sources. If there is a sound knob on the audio equipment, it is better to turn off the sound knob to the minimum before turning on or standby. The purpose is to better alleviate the impact of turning on and off the device on the audio system. Do not use induction power to unplug or plug in data signal power plugs. To prevent damage to the machine or sound system caused by the impact of working voltage. If any abnormalities occur during the entire process of machine operation, the power supply should be immediately disconnected and stopped. If the actual operators do not understand the technical aspects of maintenance, they do not need to open the machine without authorization to prevent further damage to the machine or safety accidents.

4. Maintenance and upkeep of public address system machines: It is not necessary to use volatile aqueous solutions to clean the machines. For example, when using gasoline, ethanol, etc. to clean the machine surface, a thin cloth should be used to remove dust, and the power switch should be unplugged before cleaning the machine casing. Machines are generally not moisture-proof. In case they get soaked in water, they should wait for the moisture to dry before starting up and working. Do not place lifting objects on the machine to prevent deformation.