一、 查看是否是音響線纜連接出現故障引起的雜音
1、 Check whether the noise is caused by the failure of the audio cable connection
檢查一遍所有的接線是否有松動，或者虛焊，要排查這一步以確保以后能正確判斷故障原因。
Check whether all wiring is loose or faulty. First, check this step to ensure that the cause of the fault can be correctly determined in the future.
二、 查看是否是會議音箱的問題引起的雜音
2、 Check whether the noise is caused by the problem of the conference speaker
1、 判斷是那只喇叭單元有壞了的方法
1. How to judge which horn unit is broken
找到是否是喇叭單元壞了，很簡單，只需要在功放機的前面板上進行調節，就可以找到是哪只喇叭單元有問題了。，把左右平衡打到一邊，了解是哪只音箱有問題，而后，再把高音關死，看看是否低音有問題，如無問題，則開啟低音，把高音關死，聽聽高音是否有問題。另一只音箱采用同樣的方法試試。
It is easy to find out whether the speaker unit is broken. Just adjust the front panel of the amplifier to find out which speaker unit is faulty. First, turn the left and right balance to one side to find out which speaker has a problem, then turn off the treble to see if there is a problem with the bass. If there is no problem, turn on the bass, turn off the treble, and listen to whether there is a problem with the treble. Try the same method for the other speaker.
2、 判斷是不是會議音箱分頻器出現問題
2. Determine whether there is a problem with the frequency divider of the conference speaker
要判斷分頻器是否有問題很簡單，我們確定了喇叭單元，如果沒有發現，或者發現喇叭單元有問題，但是已經換了好的單元，仍然有雜音，那就換個好的分頻器試下就可以了。
To determine whether there is a problem with the frequency divider, we first determine the speaker unit. If there is no problem with the speaker unit, or if there is a problem with the speaker unit, but the unit has been replaced and there is still noise, then we can replace it with a good frequency divider and try it.
三、 查看是否是會議功放老化所造成的雜音
3、 Check whether the noise is caused by the aging of conference power amplifier
查看功放機是否老化了，簡單的辦法是，旋轉音樂、話筒的大旋鈕看是否會加強雜音的出現，或者是一會有聲音，一會又沒有聲音。判定是功放機的問題，那就只能換功放了，或返回廠里維修。
The simple way to check whether the amplifier is aging is to rotate the big knob of the music and microphone to see if it will enhance the appearance of noise, or if there is sound at one time and no sound at the other. If the problem is judged to be the power amplifier, the power amplifier can only be replaced or returned to the factory for maintenance.
四、 檢查是不是音源本身有問題
4、 Check if there is a problem with the audio source itself
音樂或話筒本身有問題引起雜音也非常常見，如是音樂本身可以用手機播放一下就可以判斷，如果是就要重新下載無損音樂;如果是話筒可以用別的話筒測試就可以判斷出來。
It is also very common for music or microphone itself to cause noise. For example, music itself can be judged by playing it on a mobile phone. If it is, it is necessary to download lossless music again; If the microphone can be tested with other microphones, it can be determined.
魯公網安備 37010202002516號
