Scientific maintenance of HIFI sound

HIFI sound is generally more expensive, maintenance is also more troublesome, so we try to extend the life of them, to make them can use longer time, to start from the installation of its maintenance. How is it a scientific maintenance? Here is to introduce some basic knowledge of routine maintenance.(line array speakers)

1, the normal working temperature of sound equipment should be 18 to 45 degrees Celsius. Too low temperature will reduce the sensitivity of some machines, such as electron tube machine. Too high is likely to burn out components or make components premature aging. In summer, pay special attention to cooling and keeping circulation.

2, avoid direct sunlight, and avoid heat sources, such as heating.

3, after the sound 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 will be in a state of stress for a long time, which is likely to cause dysfunction.

4. Before switching on the audio power, it is the most effective way to protect the power amplifier and speakers. At this time, the power amplification of the power amplifier is almost zero, at least in the wrong operation, it will not cause harm to the speakers.

5, boot from the front to the back, that is, first open CD player, then open the front and back stage, turn the volume potentiometer of the power amplifier to the minimum when it starts. When you turn off the power amplifier, let the amplifier function completely shut down. When you turn off the front end equipment again, no matter how big the shock current is, it will not be the Yangko and the sound box. When you turn off the machine, turn the volume potentiometer of the power amplifier to the minimum, turn it off or turn it off and turn it off to the CD player.

6, do not disorderly plug in the wiring, basically all the speaker products can not play music or open large volume of sound wiring, because the plug will cause the contact current instability, resulting in a sharp sound and sound, these high frequency sounds may destroy the horn unit, more likely to "burn the horn." Therefore, users should develop the habit of cutting off the power supply before plug in the wiring, so that the life of the loudspeaker can be longer.

7. Machines should be used. It can extend the life of the machine, such as the parts of the motor, such as recording stand, CD player, laser disc player, etc. If not rotated for a long time, some parts will be deformed.

8, it should be periodically electrified. In the long term not used, especially in the humid and hot season, it is best to turn on electricity for half an hour every day. In this way, the heat generated by the components in the machine can be used to dispel moisture and avoid damp dampness of internal coil, loudspeaker coil and transformer.

9, clean the machine surface with clean wet soft cloth every once in a while. When not in use, cover the machine with dustproof cover or cover cloth to prevent dust from entering. Many players like to remove the trumpet's dustproof net to make the sound quality clearer, but if the horn is not protected, it is likely to accidentally destroy the location of the unit, especially a medium trumpet as a "high risk group". If you want to get high quality music to enjoy the home, you may wish to remove the three trumpet's dustproof net, and the best still cover the dust net. When the back is finished, the accident can be reduced.

10. From the electronic principle, any electronic device should not connect or disconnect other devices in a live working state. I don't think it is too much to explain to friends that active plug - in devices are very dangerous, and even passive devices such as microphones do not advocate charged plug - in. It needs to be reminded that do not open the amplifier to pick up the sound box line, because the trunk of the sound box is generally very close to the distance, the sound box line is two tightly parallel, wiring will often be careless short of the horn line, its consequences will be quickly burned out of the amplifier. Although some of the amplifier has protective lines, but some HI-FI grade pure power amplifier in order to improve the sound quality, reduce the unnecessary tone dyeing, often will save this part of the protection measures. Therefore, the phrase "shut down and reconnect" has long been a rule that enthusiasts must abide by.

11, some of the attention to some of the enthusiasts in the power amplifier will not twist the volume and put some sound of the music, the reason is that the power amplifier components just start in the cold state, then let its large current work will shorten its life. Therefore, some fans only put some soft music and listen to music at medium volume in the half hour after starting the machine.