1.系统电平问题：是功放灵活度控制开关翻开缺乏，其次系统没有做零电平调整。有时调音台通道推一点点输出已很大，这种状况会影响系统的动态和失真度。
1. System level problem: firstly, the power amplifier flexibility control switch is not turned on, and secondly, the system does not make zero level adjustment. Sometimes the output of the mixer channel is very large by pushing a little, which will affect the dynamics and distortion of the system.
2低音信号处置：一种不做电子分频用全频信号直接给功放推进音箱；二种不知从系统何处提取低音信号做处置。假设不做电子分频用全频信号直接给功放推进音箱固然音箱有声音也不于烧坏单元，但就其低单元发全频声音不可思议；但假如从系统中不恰当位置获得信号也会给现场控制带来不用要的费事。
2 bass signal processing: a kind of full frequency signal directly to the power amplifier propulsion speaker without electronic frequency division; Second, I don't know where to extract the bass signal from the system for processing. Suppose we don't do electronic frequency division and use full frequency signal to push the speaker directly to the power amplifier. Although the speaker has sound, it won't burn the unit, but it's incredible to send full frequency sound to its low unit; However, if the signal is obtained from an inappropriate position in the system, it will also bring unnecessary trouble to the field control.
3.效果回路处置：应该取推子的后置信号，防止效果不受控惹起话筒啸叫，返回有条件占用一路通道,这样调试更便当。
3. Effect loop disposal: the post signal of the pusher should be taken to prevent the microphone from howling due to uncontrolled effect, and return to occupy a channel conditionally, so that debugging is more convenient.
一般音响工程常见问题检修
Common problems and maintenance of general sound engineering
4.线路衔接工艺：常见系统交流干扰声大就是线路衔接工艺没有做好形成的，还有系统中有均衡转不均衡及不均衡转均衡接法的一定要按规范衔接。另外不要用劣质接插件。
4. Line connection process: the loud AC interference of common systems is that the line connection process is not well formed. In addition, if there are balanced to unbalanced and unbalanced to balanced connection methods in the system, it must be connected according to the specifications. In addition, do not use inferior connectors.
5.控制问题：调音台是系统的控制中心，有时调音台上的高中低贰蚕平衡做同等大幅度的提升或衰减则阐明系统并未调好，需求重新调试系统，不要过火调整调音台的贰蚕。
5. Control problem: the mixer is the control center of the system. Sometimes, if the high, medium and low EQ balance on the mixer is increased or attenuated by the same large margin, it indicates that the system has not been adjusted well, and the system needs to be re debugged. Do not over adjust the EQ of the mixer.
