In our lives now, we enjoy the convenience of public broadcasting in many cases. There is a lot of new information that we will get in the first place through public broadcasting, and there will be a lot of opportunities in it. But while we enjoy the benefits that public broadcasting brings us, we should also pay attention to the safety precautions when using public broadcasting:

First, pay attention to the conditions of use of the machine

Pay special attention to the following: avoid using the machine in extremely low or high temperature environments, and avoid direct sunlight hitting the surface of the machine all the time; Avoid using the machine in a humid environment to avoid premature failure of components or premature rust of the machine; Before use, it must be confirmed that the local power supply voltage matches the unit.

Second, pay attention to the use environment of the machine

Avoid using the machine in dusty and shaky environments; There should be enough space around the machine to facilitate the heat dissipation of the machine; For power amplifiers, special care should be taken to keep the heat dissipation path open.

Third, the precautions in the use of the machine

During use, attention should be paid to the order of power on and off. When booting, the pre-equipment such as the sound source should be turned on first, and then the power amplifier should be turned on; When shutting down, the power amplifier should be turned off first, and then the pre-equipment such as the audio source should be turned off. If the audio equipment has a volume knob, it is best to turn the volume knob to the minimum before turning on and off. The purpose of this is to reduce the impact on the speaker when turning on and off.

It is strictly forbidden to pull out and plug in the signal plug with electricity. so as not to damage the machine or speaker due to the resulting electrical shock; If the machine is abnormal during the working process, the power should be turned off immediately and the use should be stopped; If the operator does not understand the maintenance technology, do not open the machine without authorization, so as not to cause greater damage to the machine or cause electric shock accidents.

Fourth, pay attention to the maintenance of the machine

Do not use volatile solutions to clean the machine, such as wiping the surface of the machine with gasoline, alcohol, etc., and use a soft cloth to wipe dust. And when cleaning the machine housing, unplug the power supply first. The machine is generally not waterproof, in case of wet water, it is necessary to wait for the water to dry before it can start to work; Do not place heavy objects on the machine to avoid deformation of the machine.

In our lives, we will obtain a variety of relatively large security things from many aspects, as long as the process of use, pay attention to the elimination of security risks, will let public broadcasting play its greater practical value. Because security is no small matter, ensuring national security is an important prerequisite for doing everything well.