国产欧美精品区一区二区三区

1. The shell of reasonably grounded audio equipment is generally connected with the shield of the power transformer of the equipment. The shell of this equipment also has a "ground", which is also different from the other two "grounds". When the "ground" of the ground is relatively disturbed, the "ground" of the equipment shell can be connected with it to reduce the AC sound interference, otherwise, it shall not be connected;

2、弱信号设备电源与强信号设备电源分组连接弱信号音源设备如颁顿、卡座、效果器、调音台、压缩限幅器和均衡器等同一组电源连接，强信号功率放大器与另一组电源连接，可以避免传导方式的电源交流噪声干扰；

2. The power supply of weak signal equipment is connected with the power supply of strong signal equipment in groups. The weak signal sound source equipment such as CD, card holder, effector, mixer, compression limiter and equalizer are connected with one group of power supply, and the strong signal power amplifier is connected with another group of power supply, which can avoid the interference of AC noise of power source in conduction mode;

3、把两个&濒诲辩耻辞;地&谤诲辩耻辞;电位不同的音响设备间的信号地线分离，避免设备直接连通或形成地线环路。如平衡式连接外屏蔽线只在一端接地，或两端都不接地等；

3. Separate the signal ground wire between two audio equipment with different "ground" potential to avoid direct connection of the equipment or formation of ground wire loop. For example, the external shield wire of balanced connection is only grounded at one end, or both ends are not grounded, etc;

4、连接干净的电源供电供电电源设计时，应设计单独电源变压器；无条件时可使用独立一组电源供电，与空调、灯光等设备分开供电；或采用隔离电源变压器等，这些都是行之有效的措施；

4. When connecting clean power supply, separate power transformer shall be designed; When there is no condition, an independent group of power supply can be used to supply power separately from air conditioning, lighting and other equipment; Or use isolation power transformer, these are effective measures;

5、使用悬浮接地就是该点电位与地相同，为零电位。但是该点又不是直接和地相连。是音响设备电路对地电位为零的点。这个&濒诲辩耻辞;地&谤诲辩耻辞;与实际的地之间存在阻抗，而且是高阻抗，这样可以克服共模干扰；

5. The use of suspended grounding means that the potential at this point is the same as that at ground and is zero potential. But the point is not directly connected to the ground. It is the point where the potential to ground of the audio equipment circuit is zero. There is impedance between this "ground" and the actual ground, and it is high impedance, which can overcome the common mode interference;

6、两音响设备间不能有直流的电路连接；

6. There shall be no DC circuit connection between the two audio equipment;

7、不同系统连接须采用平衡式隔离变压器连接音响系统与电视转播车音频系统的连接；系统与大型电子显示屏的连接；或与电子计算机的连接等，一般须用平衡式隔离变压器连接。不同系统共地容易引起交流噪声的干扰；

7. The balanced isolation transformer shall be used for the connection of different systems to connect the audio system of the sound system and the audio system of the TV broadcasting vehicle; Connection between the system and large electronic display screen; Or connection with electronic computer, etc. generally, it must be connected with balanced isolation transformer. The common ground of different systems is most likely to cause the interference of AC noise;

8、远距离传送信号使用平衡式或平衡隔离变压器的传输方式，短距离可以用不平衡式。采用平衡隔离变压器的传输方式一般两端都要有平衡变压器，屏蔽层一端接地，也可悬空不接。接地可以起到屏蔽作用，也可防止设备漏电发生触电事故。不接地时，两端平衡变压器可起到绝缘隔离作用，平衡变压器中心接地，可泄放静电；

8. The transmission mode of balanced or balanced isolation transformer is used for long-distance signal transmission, and unbalanced type can be used for short-distance signal transmission. The transmission mode of balanced isolation transformer is adopted. Generally, there should be balanced transformer at both ends, and one end of the shielding layer can be grounded or suspended. Grounding can play a shielding role and prevent electric shock accidents due to equipment leakage. When not grounded, the balance transformers at both ends can play the role of insulation and isolation, and the center of the balance transformer is grounded to discharge static electricity;

9、在电源干扰很严重的情况下，设备分相连接把小信号的音响设备和监听设备电源连在一起，选择叁相电源中交流声干扰小的一相接入，其余两相接大信号功率放大器，可以降低来自电源的交流噪声干扰；

9. When the power interference is very serious, the equipment is connected in separate phases to connect the power supply of small signal audio equipment and monitoring equipment. Select the phase with the smallest AC acoustic interference in the three-phase power supply, and the other two phases are connected with large signal power amplifier, which can reduce the AC noise interference from the power supply;

10、检查一下是不是你的电网电源不干净；

10. Check whether your power grid is not clean;

11、是不是某些设备接地问题；

11. Whether there is grounding problem of some equipment;

12、再者就是看看设备连线间又没有干扰（弄的很乱/接口有没有虚焊）；

12. In addition, there is no interference between the equipment connections (it is very messy / whether the interface is welded);

13、看一下是否受灯光（硅箱、信号线）的干扰：

13. Check whether it is disturbed by light (silicon box, signal line):

14、通常音响有交流声比较响的话是功放的问题，功放信噪比做的不是很好的话就会发出很响嗞嗞声。先查查是否是信号线的问题，只要把所有信号线拔掉再打开功放，如果喇叭里没有很响的交流声那就是信号线的问题了，先看看插头是否有短路碰线现象（拿万用表测比较准），有的话就重新焊接插头了就可以了。如果这样也不行的话那就只有重新换信号线了。拔掉信号线仍旧有很响的交流声那就是功放的问题了，说明功放比较差，要解决这个问题就只有换台好的功放了。

14. Usually, if the audio has a loud communication sound, it is the problem of the power amplifier. If the signal-to-noise ratio of the power amplifier is not very good, it will make a very loud sound. First check whether it is the problem of the signal line. Just unplug all the signal lines and then turn on the power amplifier. If there is no loud AC sound in the horn, it is the problem of the signal line. First check whether the plug has a short circuit and touches the line (it is more accurate to measure with a multimeter), and if so, re weld the plug. If that doesn't work, you have to change the signal line again. There is still a loud communication sound when you unplug the signal line, which is the problem of the power amplifier. It shows that the power amplifier is relatively poor. To solve this problem, you have to change a good power amplifier.

以上就是为大家介绍的内容，感谢您在百忙之中查看我公司的信息内容，如果您想要了解的更多，欢迎您来电进行咨询!

The above is Shandong sound http://www.wenguangzhineng.com Thank you for checking the information of our company in your busy schedule. If you want to know more, you are welcome to call for consultation!