Daily maintenance and common troubleshooting of speakers
Daily maintenance and common troubleshooting of speakers, in fact, we now can not live without a lot of electronic products, audio is one of them, in fact, audio equipment is one of the commonly used equipment for stage activities, recreation and entertainment in the life of the equipment, from small to square dance to the festival celebrations, can not be separated from the audio. Then the daily maintenance of speakers and common troubleshooting?
The daily maintenance of speakers and common troubleshooting 1
Routine maintenance of speakers:
Speakers should be avoided to avoid direct sunlight, next to the heater and the low temperature should not be placed in the place of speakers, so as not to cause the surface of the box blisters and the aging of the electrical components.
Do not close to the magnetization of items such as displays, even if the anti-magnetic speakers, the same will have a certain impact on the display. Similarly, speakers should be kept away from strong magnetic fields, if the phone is close to the speaker, when answering the phone will make the speaker noise.
The surface of the speaker can be cleaned with a towel dipped in warm water and wrung out, and then wiped until the water is dry.
Speaker's electrical maintenance:
Active speakers due to the built-in amplifier, amplifier chip is afraid of large (instantaneous) current direct impact, so it is best to open the speaker volume to the minimum and then open the machine, you can adjust the volume after the boot normally. When you turn off the power, you should also turn down the volume before turning off the power.
After a long time of high volume sound, the rear panel of the speaker will become very hot, it is best to turn off the machine to avoid accidents. You should use a qualified power outlet, and when you don't use it for a long time, you should turn off the switch and pull out the power plug.
And the volume of the speakers should not be opened too much, up to about 1/2, because some songs have extraordinary treble or dynamic amplification, in the state of the volume open full will burn the speaker.
In the case of power supply, the speaker wire short will lead to a short circuit and burn the speaker, so be careful when dealing with the wire. It's a good idea to dip the wire in solder to prevent burrs and keep it at the right length.
Common Troubleshooting:
When the speakers do not sound or only one sound, first of all, you should check the power supply, connecting the wire is connected, and sometimes too much dust often leads to poor contact. If you are not sure whether it is a problem with the sound card, you can replace the sound source (such as connecting a Walkman) to determine whether it is the fault of the speakers themselves. When you hear the sound from the speakers is relatively empty, the sound field is lax, pay attention to the left and right channels of the speakers should not be connected to the opposite, you can consider switching the two sets of audio cables. When the speaker has obvious distortion, you can check the subwoofer, 3d and other adjustment degree is too large. When the speaker has a murmur, you can consider replacing the sound source or whether there is a strong magnetic field nearby.
Speaker routine maintenance and common troubleshooting 2
First, the mixer common failures, including hardware and software systems in two aspects.
If the use of sound intermittent, mostly volume faders poor contact; for the software system, sometimes the control system failure, signal errors and so on.
For example, when you use the mixer, there is no signal on the total output, switch to the group output, there is still no signal, at this time, no matter which way you push the faders, it is the other lines of the faders are responsive, at this time, consider the control system problem. Of course, there are channel input port failure, in short, the mixer failure mainly in the input, output, control system and power supply of the four parts, and most of the equipment aging caused.
Second, the equalizer common faults, mainly divided into push-button contact failure and internal line failure.
The former is the most common, mostly due to equipment aging; the latter, generally manifested as only one way signal output, then consider line failure, line maintenance.
Third, the digital effects device common failure.
The general digital effects processor will produce some digital noise when processing audio signals, which is normal, but when there is a more dense noise, it should be caused by poor shielding of the signal line. If the effect device can be turned on, but can not work properly, the program inside all can not be operated. This time to consider the effect device digital processing chip failure, because the digital processing chip is the core part of the effect device, and sophisticated and complex. This is because the digital processing chip is the core part of the effector, and it is precise and complicated.
Fourth, the amplifier common failure.
The most common faults amplifier capacitor damage, amplifier tube overheating, amplifier volume potentiometer poor contact, left and right channel imbalance work poor contact with the changeover switch and the signal jack problem, the amplifier is more likely to be faulty equipment in the audio system, some of which are caused by circuit problems, some of which are caused by the aging of the equipment ` we need to analyze according to the specific phenomenon The source of the problem.
For example, when the amplifier in a channel no sound, consider the circuit caused by the failure; and amplifier tube overheating, most likely caused by our improper use. We need to carefully observe and find the source of the problem in time to quickly solve the amplifier problem.
Fifth, the common failure of the speaker.
Common speaker problems and poor contact with the terminals. In fact, the speaker problem is the most common, in addition to human factors, the main speaker itself quality problems.
There are many components in the audio equipment, including the pressure limiter, electronic crossover, potentiometer, power transformer, etc., which play different roles in the audio equipment, if there is a problem, it will also affect the normal use of the equipment. For example, when adjusting the volume when the crackling noise, or volume when big and small.
Consider the volume adjustment potentiometer problem, then replace a new potentiometer, you can solve the problem. And sound playback is normal, but a horn sound, a horn sound small. This may be the potentiometer on the reed caused by the use of time is too long, then do not have to replace the potentiometer, manually adjust it. There are times when the sound can be played normally, but from time to time there will be noise, which may be the problem caused by the poor quality of the power socket.
The above are common audio faults and troubleshooting, some of the problems we can solve themselves, some need to find professional maintenance personnel to solve. In fact, many of the faults we can through daily maintenance, regular cleaning to reduce the occurrence of faults. When the use of problems, do not panic, find the source of the problem, flexible response.
This is the significance of our learning, I hope you can through the Leimeng Technology's explanation of the harvest some experience, pay more attention to Leimeng Technology, learning to understand some of the audio equipment in daily life related knowledge, improve the ability to find problems and solve problems.