Common Knowledge on Daily Maintenance of Public Broadcasting System Equipment
2023 04/27
After installation, the public address system horn speakers also needs to be maintained in daily life in order to prolong its service life. So, what kind of maintenance does the public address system speaker horn needs in daily life? The normal operating temperature of public address system horn loudspeaker should generally be between 18 ℃ and 45 ℃. Too low a temperature can reduce the sensitivity of certain machines; If it is too high, it is easy to burn out the components or cause premature aging of the components. In summer, special attention should be paid to cooling down and maintaining air circulation. 2. Public address system equipment should avoid direct sunlight and avoid approaching heat sources, such as heaters. 3. After the public address system equipment is used up, all function keys should be reset. If the function key does not reset for a long time, its pull button spring is in a state of stress for a long time, which is easy to cause dysfunction. 4. Before switching the power supply of the equipment, turn the volume potentiometer of the power amplifier to the minimum, which is the most effective protection method for the power amplifier and speakers. At this point, the power amplification of the amplifier is almost zero, at least in case of misoperation, it will not cause harm to the speaker. 5. Turn on the CD player from front to back, that is, first turn on the CD player, then turn on the front and rear stages. Turn the volume potentiometer of the power amplifier to the minimum when starting up. When turning off the power amplifier, turn it off first to completely turn off its amplification function. At this time, when you turn off the front-end device again, no matter how much impact current is generated, the power amplifier and speaker will not be affected. Similarly, turn the volume potentiometer of the power amplifier to the minimum when closing the face, and it can be connected with the CD player before closing the face or after playing. 6. Machines should be commonly used. Commonly used can actually extend the lifespan of a machine, such as some parts with electric motors (recording consoles, compact disc players, laser disc players, etc.). If it does not rotate for a long time, some parts will still deform. 7. Regularly power on. In situations where it is not used for a long time, especially during humid and hot seasons, it is best to power on for half an hour every day. This can use the heat generated during the operation of internal components to drive away moisture and prevent internal coils, speaker coils, transformers, etc. from getting damp and moldy. 8. Clean and damp soft cotton cloth should be used to wipe the surface of the machine at regular intervals; When not in use, cover the machine with a dust cover or cloth to prevent dust from entering. From the principle of electronics, any electronic device should not be connected or disconnected from other devices when working with electricity. I don't need to explain this too much, and friends can understand that plugging and unplugging active devices with electricity is very dangerous 10. Some sophisticated enthusiasts do not turn up the volume or play some explosive music when the amplifier is turned on. The reason is that the amplifier components are in a cold state when they are first turned on, and allowing them to operate with high current will shorten their lifespan. Therefore, some enthusiasts only play some soft music and listen to music at medium volume within half an hour of starting up, and then turn on the volume to enjoy it after the machine warms up. The above is the daily maintenance tips for public broadcasting introduced by Taixing Minsheng. After reading them, if you have any questions, you can contact us by phone.