At present, some domestically-made equipments are relatively more malfunctioning than the equipments themselves. For individuals, it is more laborious to solve them, and some problems are spent to solve problems. Therefore, Xiao Bian shares with you today how to solve the problems encountered in acoustics. Briefly introduce the common self-faults of professional audio equipment:
First, the mixer's own fault:
1. The volume fader does not touch well, and the sound is intermittent at work.
2. The channel input port is faulty. For example, the XLR card input port of the old Budweiser mixer was very easy to “uprootâ€. When I first encountered this kind of failure, I could not believe my eyes.
3. Disturbance of the control system, once using a vocal arts 16-channel mixer, it was found that there was no signal out of the total output, and later it was changed to the group output, and there was no signal output in the group and I was pushing the 10th route. When it comes to faders, going out is indeed the sound of the 11th channel. Later, I passed the AUX output signal and so on. Finally, the mixer still completely strikes. At this time the performance is not cold, I also simply put the CD signal directly to the amplifier put some music forget. It was the first time I've encountered a console like this for the first time. I haven't heard of it before. In short, the failure of the mixer is nothing more than the input part, output part, control part, power supply part, etc., which is generally caused by the aging of the equipment.
Second, the common error of the equalizer:
1. The equalizer push-pull button contact failure, which is the most common, is mainly due to equipment aging and harsh environment.
2. The intrinsic line fault of the equalizer. I have seen that some equalizers only have one signal output. Later I discovered that the circuit was broken. And there are not many such equalizers. I have come across several times.
Third, the pressure limiter, electronic crossover, professional feedback suppressor, professional delay and other common self-failure:
In addition to severe aging of the equipment, these devices generally do not have major problems. At most, the adjustment knob and the signal socket on the rear panel have a small problem.
Fourth, digital effects of common faults:
1. The noise problem, digital effects in the processing of audio signals, there is a certain amount of digital noise itself, if coupled with the signal line shielding is not good, serious noise will be like rain.
2. The core part of the digital effect processor is the digital processing chip. When these digital chips are also malfunctioning, I have seen a YAMAHA 500 effect device that can boot but can't work. The programs inside can't adjust the use. Complex digital chips also have no way to repair.
Fifth, amplifier and speaker common faults:
1. The most common fault of the amplifier is the bad capacitor or the power amplifier. This has the problem we use, but most of the equipment itself is unstable.
2. Another one I also found that some amplifiers will experience a failure of the sound of a channel, the problem is still inside the circuit.
3. As for other faults, there are problems such as poor contact of the amplifier volume potentiometer, unbalanced left and right channels, too frequent protection functions, poor contact of the rear panel working switch, and signal jack. In short, the amplifier is now compared with the audio system. An electrical device that is prone to failure.
4. Some of the most common speaker failure is of course the horn problem, it can be said that the most prone to failure in a sound system is to burn the horn, of course, human factors, but most of the quality of the speaker itself.
5. Another common failure of the speaker is the aging of the port, bad contact, especially the frequent flow of speakers is prone to this failure. The above-mentioned equipment itself malfunctions the general sound engineer to be unable to repair, in the previous article I said, the sound division must achieve "professionalism", if what amp is broken, the horn is broken those who are maintenance engineers, we The scope of work of the sound engineer is to match the sound system well and adjust the various sounds on the line.
First, the mixer's own fault:
1. The volume fader does not touch well, and the sound is intermittent at work.
2. The channel input port is faulty. For example, the XLR card input port of the old Budweiser mixer was very easy to “uprootâ€. When I first encountered this kind of failure, I could not believe my eyes.
3. Disturbance of the control system, once using a vocal arts 16-channel mixer, it was found that there was no signal out of the total output, and later it was changed to the group output, and there was no signal output in the group and I was pushing the 10th route. When it comes to faders, going out is indeed the sound of the 11th channel. Later, I passed the AUX output signal and so on. Finally, the mixer still completely strikes. At this time the performance is not cold, I also simply put the CD signal directly to the amplifier put some music forget. It was the first time I've encountered a console like this for the first time. I haven't heard of it before. In short, the failure of the mixer is nothing more than the input part, output part, control part, power supply part, etc., which is generally caused by the aging of the equipment.
Second, the common error of the equalizer:
1. The equalizer push-pull button contact failure, which is the most common, is mainly due to equipment aging and harsh environment.
2. The intrinsic line fault of the equalizer. I have seen that some equalizers only have one signal output. Later I discovered that the circuit was broken. And there are not many such equalizers. I have come across several times.
Third, the pressure limiter, electronic crossover, professional feedback suppressor, professional delay and other common self-failure:
In addition to severe aging of the equipment, these devices generally do not have major problems. At most, the adjustment knob and the signal socket on the rear panel have a small problem.
Fourth, digital effects of common faults:
1. The noise problem, digital effects in the processing of audio signals, there is a certain amount of digital noise itself, if coupled with the signal line shielding is not good, serious noise will be like rain.
2. The core part of the digital effect processor is the digital processing chip. When these digital chips are also malfunctioning, I have seen a YAMAHA 500 effect device that can boot but can't work. The programs inside can't adjust the use. Complex digital chips also have no way to repair.
Fifth, amplifier and speaker common faults:
1. The most common fault of the amplifier is the bad capacitor or the power amplifier. This has the problem we use, but most of the equipment itself is unstable.
2. Another one I also found that some amplifiers will experience a failure of the sound of a channel, the problem is still inside the circuit.
3. As for other faults, there are problems such as poor contact of the amplifier volume potentiometer, unbalanced left and right channels, too frequent protection functions, poor contact of the rear panel working switch, and signal jack. In short, the amplifier is now compared with the audio system. An electrical device that is prone to failure.
4. Some of the most common speaker failure is of course the horn problem, it can be said that the most prone to failure in a sound system is to burn the horn, of course, human factors, but most of the quality of the speaker itself.
5. Another common failure of the speaker is the aging of the port, bad contact, especially the frequent flow of speakers is prone to this failure. The above-mentioned equipment itself malfunctions the general sound engineer to be unable to repair, in the previous article I said, the sound division must achieve "professionalism", if what amp is broken, the horn is broken those who are maintenance engineers, we The scope of work of the sound engineer is to match the sound system well and adjust the various sounds on the line.
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