Monopoly Henan Puyang Wedding audio equipment fault current center of the device itself most professional audio equipment are very mature, the general import of equipment under normal circumstances there will be very little trouble, but some domestic equipment failure device itself is relatively is more and more, here's a brief introduction of professional audio equipment common own fault: a common mixer own fault: Jiaming Yang 1393 +90664 +17 69139139 www.69139139.com Zheng * technology market in Milan Sunshine City Building 5 2 Unit 2081, volume fader bad contact, intermittent sound when working. Henan Puyang Wedding audio equipment equipment wholesale center 2, the channel input port failures, such as the previous vintage Budweiser mixer XLR XLR input port is easy to "uprooted" and began to deal with such failures I really can not believe their eyes. 3, the control system disorders, and once using a Soundcraft 16 channel mixer, the total output no signal found out later on changed to group output, wait for the next group and no signal is output, and I pushed the first 10 channels in fader, out of 11 channels is indeed sound. Later I went through the AUX output signal, etc. methods, and finally this mixer is completely strike. Not being performed at this time the ice, I just put the CD player to the amplifier signal directly put music forget. Failure mixer like this for so many years I first met, previously not heard. In short nothing but trouble mixer input section, output section, the control section, power supply, etc., generally caused due to aging equipment. Second, the common equalizer own fault: Henan Puyang Wedding audio equipment equipment wholesale center an equalizer sliding key contact failure, and this is the most common, mainly due to aging equipment and harsh environment. 2, the equalizer inherent fault lines, I have seen some of the equalizer only one signal output, but later found that the way the circuit is broken, and that such an equalizer a few, I met several times. Third, the pressure limiter, electronic crossover, professional feedback suppressor, professional and other common delay own fault: These devices in addition to equipment is aging, but is generally not a big problem, that is up to the knob and rear panel signal jack little problem. Fourth, digital effects Troubleshooting: 1, noise problems, digital effects processing audio signal itself has some digital noise, if coupled with the signal line shield bad, serious noise will be like rain. 2, the core part of the digital effects that digital processing chip, and these digital chips have failed, I've seen a YAMAHA500 effects, but not able to start the work, which the program is no way to adjust all to use, and so complex digital chip is also no way to repair. Five, amplifier and speakers Troubleshooting: Jiaming Yang 1393 +90664 +17 69139139 www.69139139.com Zheng * City Milan sun technology market, Building 5, Unit 2, 208 Henan Puyang wedding Audio Equipment Wholesale Center, PA is the most common faults bad capacitor or burned amplifier tube, which we use have problems, but most of the equipment itself or unstable. 2, and then the one I have found that some one channel power amplifier will occur no sound failures, problems or inside electrical problems. 3, as well as what other faults amplifier volume potentiometer bad contact, unbalanced left and right channels, the protection function too frequently, working rear panel switch socket contact is not good, and signal problems, in short, is now the sound system amplifier to compare prone to failure as a electrical equipment. 4, the speaker part of the fault, of course, the most common problem is the speaker, it can be said a stereo system is the most prone to failure is burned speakers, this is of course someone factors, but most still sound quality problems. Henan Puyang wedding equipment wholesale center five audio equipment, speakers, another common fault is wiring port aging, poor contact, especially prone to frequent speaker flowing this failure. Above these devices themselves failures are generally sound engineer is no way to repair, in the previous article, I said, the sound engineer to be "professional", if anything bad amplifier, speakers bad things that are maintenance engineers, we sound engineer working range with a good sound system is to put all kinds of sound tone Haojiu Hang up, do not do eighteen versed in martial arts! Jiaming Yang 1393 +90664 +17 69139139 www.6