The problem solving method of stage lighting and sound equipment

1、舞台音响灯光设备外壳有带电现象的检查顺序

1. The inspection order of live audio and lighting equipment shell is electrified.

设备外壳带电检查的顺序首先是要检查供电线路是否出现损坏的情况，其次是线路相位是否正确，其次还要了解设备接地和电压是否正确。

The order of electrification inspection of the equipment shell is first to check whether the power line is damaged, the second is whether the line phase is correct, and the second is to know whether the equipment is grounded and the voltage is correct.

2、专业音响系统中音量不足的情况检查顺序

2, check the sequence of insufficient volume in professional audio system.

一般情况下如果专业音响设备中出现音量不足的情况，就要及时的检查功放和音箱的线路电平设置是否正确，其次还要了解音箱线连接是否牢固，还有就是功放与音箱的相位是否一致，均衡器衰减幅度是否在正常的范围呢，压限器的起控电平是否恰当。

In general, if the volume is insufficient in the professional sound equipment, it is necessary to check whether the circuit level of the amplifier and the sound box is correct in a timely manner. Secondly, it is necessary to know whether the connection of the sound box line is firm, and whether the phase of the amplifier and the sound box is consistent, and whether the attenuation of the equalizer is in the normal range, and the pressure is in the normal range. Whether the control level of the limit device is appropriate.

3、怎么检查声场中发生共振和反馈

3. How to check the resonance and feedback in the sound field

如果在专业音响设备中出现共振和声反馈的情况，首先要检查房间频响是否有峰点，还有就是要检查房间结构和装饰是否合理，最好还要检查分频点和低音增益是否合理，房间混响时间是否出现过长的情况。

If there is resonance and sound feedback in the professional sound equipment, we should first check whether there is a peak in the room frequency response, and to check whether the room structure and the decoration are reasonable, it is better to check whether the frequency division points and the bass gain are reasonable, and whether the room reverberation time is too long.

4、产生干扰噪声的检查方法

4. The inspection method of disturbing noise

专业音响设备中如果有噪声，首先就要检查调光干扰，音响和灯光电源是否出现断开的情况，其次就要检查灯光电源和控制线路是否离音频信号线太近，有没有出现硅箱离音频设备太近的情况。 一般情况下出现音箱系统有噪声的情况，通常都是由于信号的传输不合理的情况所导致的，所以当信号线的屏蔽出现问题，或者信号的接地不正确的情况，就容易出现噪声干扰的情况。

If there is noise in the professional audio equipment, it is necessary to check the interference of light adjustment, whether the sound and light power supply is disconnected. Secondly, it is necessary to check whether the lighting power and the control line are too close to the audio signal line, and there is no case that the silicon box is too close to the audio equipment. In general, there is noise in the sound box system, which is usually caused by the unreasonable transmission of the signal. So when the signal line is shielded, or the signal's grounding is not correct, it is easy to appear noise interference.

舞台灯光音响设备出现问题怎么办

How to do the problems of the stage lighting and sound equipment

5、灯光失控的检查方法

5. The method of checking out the out of control of the light

灯光失控首先就要检查控制器的程序有没有问题，灯具的地址编码有没有出现问题，控制线的接法是不是正确，还有需要检查控制线的屏蔽有没有受到不良干扰，灯具的限位调整是否恰当等。

When the light is out of control, it is necessary to check the program of the controller. There is no problem in the address coding of the lamps and lanterns. Is the connection method of the control line correct or not, it also needs to check whether the shielding of the control line is disturbed and the limit adjustment of the lamps and lanterns is appropriate.

6、电脑灯灯泡损坏检查

6, the inspection of the damage of the computer lamp bulb

在舞台音响灯光中最容易出现的就是灯泡易坏的情况，所以出现问题，就要检查安装的灯泡否牢靠，有没有沾染尘土和水气，还有就是要检查灯泡的散热是不是在正常范围内，最好需要检查的是电压是否在正常的范围内，有没有使用电源开关过于频繁的情况。

The most easy to appear in the stage sound light is the condition that the light bulb is bad, so it is necessary to check the light of the light bulb of the installation, whether it is contaminated with dust and water, and to check whether the heat dissipation of the bulb is in the normal range. It is better to check whether the voltage is in the normal range or not. The use of power switches is too frequent.

7、音视频系统中对视频图象的检查

7, video image inspection in audio and video system

如果在专业音响设备中出现视频图象不正常的情况，首先就需要检查节目制式是不是在正确的范围，设备外壳有没有带电的情况，其次还要检查信号屏蔽是不是容易受到高电平干扰，最好要检查投影管是否在正常的范围内，液晶投影的灯泡的性能有没有出现问题。

If the video image is not normal in the professional audio equipment, it is necessary to check whether the program is in the correct range, the equipment shell is not charged, and then check the signal shielding is not easy to be disturbed by high level. It is best to check whether the projection tube is in the normal range. Is there any problem with the performance of the bulb projected?

8、专业音响设备中无线话筒的声音不稳定

8, the voice of wireless microphone in professional audio equipment is unstable.

如果无线话筒不稳定的情况，首先就要检查声音不稳定的原因在哪里，是由于系统内有高频干扰源导致的，还是天线连接错误、接收机微调、话筒电池电量等连接设备出现问题导致的。

If the wireless microphone is unstable, it is the first to check the cause of the instability of the sound, due to the high frequency interference source in the system, the connection equipment such as the antenna connection error, the receiver's fine tune, the battery power and so on.