Professional audio equipment maintenance

The maintenance and maintenance of professional audio equipment is crucial, which is directly related to the service life and safety of professional audio equipment, so some simple audio equipment maintenance knowledge is necessary to learn!
1, the normal operating temperature of audio equipment should be 18 ° C ~45 ° C. Too low a temperature will reduce the sensitivity of some machines (such as electronic tube machines); Too high is easy to burn components, or make components prematurely aging. Pay special attention to cooling and maintaining air circulation in summer.
2, before switching the audio power supply, turn the volume potentiometer of the power amplifier to the minimum, which is one of the most effective means of protection for the power amplifier and speaker. At this time, the power amplification of the amplifier is almost zero, at least in the case of misoperation, it will not cause harm to the speaker.
3, start from the front to the back, that is, first open the CD player, and then open the front stage and the rear stage, turn the power amplifier volume potentiometer to the minimum when starting. Turn off the power amplifier first, so that the amplification function of the power amplifier is completely turned off, at this time when you turn off the front-end equipment, no matter how large the impact current will not be produced and the power amplifier and speaker. Similarly, the power amplifier volume potentiometer should be turned to the minimum when the surface is closed, and the CD player can be turned off or put back before closing.
4, in the case of long-term non-use, especially in the wet, high temperature season, it is best to power for half an hour every day. In this way, the heat generated by the components in the machine can be used to remove moisture and avoid the internal coil, speaker voice coil, transformer and so on.
5. After the audio equipment is used up, the function keys should be reset. If the function key is no longer positioned for a long time, its pulling button spring is in a state of stress for a long time, which is easy to cause functional dysfunction.
6, the machine should be used. Commonly used but can extend the life of the machine, such as some parts with motor (recording base, laser disc player, laser video player, etc.). If it is not rotated for a long time, some parts will be deformed.
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