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Audio maintenance needs to pay attention to what problems? Audio equipment conservation little knowledge!


How scientific maintenance of audio equipment is a problem that many audio enthusiasts are very concerned about. Proper maintenance is the key to prolong the life of audio equipment. Let's take you to understand some of the conservation methods of audio equipment!

1. Before switching the power supply, we must pay attention to the volume potentiometer of the power amplifier to the minimum, which is a very effective protection method for the power amplifier and the speaker. At this time, the power amplification of the power amplifier can be said to be zero, if the wrong operation will not cause harm to the speaker. After the equipment is used up, the function keys should be reset. If the function key is not reset for a long time, its pull button spring is in a state of force for a long time, and it is easy to form a function failure. Equipment should be commonly used, but commonly used can prolong the life of the equipment. If it does not rotate for a long time, local parts will be deformed.

The normal working temperature of audio equipment should be 18 ℃ ~ 45 ℃. If the temperature is too high, it is easy to burn out the components, even if it does not burn out, it will age in advance, and if the temperature is too low, it will lead to the flexibility of some equipment. In summer, special attention should be paid to the temperature, away from other heat sources and heat radiation sources, and placed in a ventilated and dry place. Remember to be moisture-proof, if the speaker is wet, the diaphragm of the speaker will undergo biological deterioration during vibration, thus accelerating the aging phenomenon of the diaphragm of the speaker, which directly leads to the decline of sound quality. In the case of long-term non-use, especially in the humid and high temperature season, it is best to power on for half an hour every day, so that the heat generated by the internal components can be used to drive away the moisture and avoid the internal coil, speaker voice coil, transformer, etc.

3. When turning on the equipment at ordinary times, turn on the CD player first, then turn on the front and back stages, and turn the volume potentiometer of the power amplifier to the minimum when turning on the equipment. When turning off the equipment, the sequence is just the opposite. When turning off the power amplifier, turn off the power amplifier first, so that the amplification function of the power amplifier is completely turned off. When turning off the front-end equipment at this time, no matter how large the impact current is, the power amplifier and sound box will not be affected. Turn the volume potentiometer of the amplifier to the minimum when it is also turned off.

4, pay attention to dust and insect prevention. At regular intervals, wipe the appearance of the equipment with a clean and moist soft cotton cloth. When cleaning the equipment, avoid using volatile solvents and water, and wipe the equipment with a dry cloth. When not in use, the equipment should be covered with a dust cover or cloth to prevent dust from entering. In seasons when there are more mosquitoes, attention must be paid to insect prevention. If you enter the sound box, it is easy to damage the sound paper basin.

5. From the principle of electronics, any electronic equipment should not be connected or disconnected from other equipment in the live working state. I don't think it is necessary to explain too much that everyone will be aware of this. Live plug-in of active equipment is a very big risk, and even passive equipment such as microphones do not advocate live plug-in. What needs to be reminded is never to turn on the amplifier to connect the speaker cable. As the terminals of the speaker are very close and the speaker cable is two tightly parallel, the speaker cable will often be short-circuited accidentally when connecting, and the result will be burning the amplifier. Although some power amplifiers are equipped with short-circuit protection, some HI-FI-grade pure power amplifiers often save this part of maintenance measures in order to improve sound quality and reduce unnecessary sound pollution. Therefore, the phrase "shutdown and rewiring" has long become a must for enthusiasts.

6. The power amplifier components are in a cold state at the beginning. They cannot turn on a large volume or play some music that is too high. If they are allowed to work with high current at this time, their service life will be shortened. Therefore, within half an hour of turning on the audio equipment, only play some soft music and listen to music at medium volume. Also be careful not to use the microphone to aim at the speaker. If you use the microphone to aim at the speaker, it will make a harsh sound. This situation is caused by the treble unit of the speaker, which is very easy to burn the treble unit.

7, audio equipment equipment regularly check the screws, to prevent the screw loose lost.

8. Take out the battery when the microphone is not in use to prevent the battery from leaking or leaking to damage the microphone.

9. After the box line is used for a long time, the two ends of the line will inevitably be oxidized. When the thread is oxidized, it will cause the sound quality of the speaker to decline. At this time, it is necessary to clean the contact point or replace the plug to keep the sound quality unchanged for a long time. When using the speaker, it is best to check whether the connection line of the speaker is connected normally, and whether there is any virtual connection or oxidation. If there is any fault, handle it in time and do not let the device use it with fault.

10. Do not place heavy objects on the equipment to prevent the equipment from deforming.

11. If abnormal noise occurs during the operation of the equipment, immediately stop the equipment and turn off the power supply, and ask professional maintenance personnel to check and deal with it. Do not check the equipment yourself, so as not to let the equipment suffer greater damage, but also to prevent leakage electric shock.

12. The sound should be avoided in the vicinity of a strong magnetic field. There will be a conversion between electrical signals and electromagnetism during the sound work. If there is a strong magnetic field nearby, it will definitely affect the normal operation of the combined sound and produce electromagnetic induction noise and communication sound.

The maintenance and maintenance of audio equipment must be planned and implemented according to climate, season and other factors, and large-scale all-round maintenance can be carried out monthly or quarterly. At ordinary times, the microphone, power amplifier, speaker, etc. should be checked carefully and carefully, and the fault should be maintained and repaired in time. The above is a summary of the common sense about the maintenance and maintenance of audio equipment. If you have any opinions, please add them.

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