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公共廣播音響系統(tǒng)目前是一個(gè)各行各業(yè)都會(huì)有需求的系統(tǒng)，酒店、、公園、景點(diǎn)等場(chǎng)所都會(huì)用到。當(dāng)然在使用期間也會(huì)出現(xiàn)問(wèn)題，那么預(yù)防公共廣播音響系統(tǒng)出現(xiàn)不好現(xiàn)象的措施有什么呢？

At present, the public address sound system is a system that will be needed by all walks of life, and will be used in hotels, shopping malls, parks, scenic spots and other places. Of course, there will be problems during use. What are the measures to prevent bad phenomena in the public broadcasting audio system?

1、選購(gòu)質(zhì)量?jī)?yōu)的廣播設(shè)備

1. Purchase high-quality broadcasting equipment

系統(tǒng)廣播設(shè)備選用性能指標(biāo)好、抗干擾能力強(qiáng)的產(chǎn)品。廣播設(shè)備的抗擾能力決定于噪聲的抑制能力，受廣播設(shè)備的電路、制造工藝及所用材料的制約。因此如果預(yù)算允許、又想要更好的效果，建議選購(gòu)更高檔次的廣播設(shè)備，一分錢一分貨，萬(wàn)古不變的道理。

The broadcasting equipment of the system shall be products with good performance index and strong anti-interference ability. The anti-interference ability of broadcasting equipment depends on the noise suppression ability, and is restricted by the circuit, manufacturing process and materials of broadcasting equipment. Therefore, if the budget allows and you want better results, it is recommended to buy higher-grade broadcasting equipment. You get what you pay for, and it will never change.

2、正確連接設(shè)備間的信號(hào)線

2. Correctly connect signal lines between equipment

設(shè)備質(zhì)量過(guò)關(guān)，還要注意設(shè)備信號(hào)線之間的連接。如果連接不正確或不恰當(dāng)，即使是性能良好的設(shè)備也難以發(fā)揮其的品質(zhì)。接地是抑制噪聲和防止干擾、提高可靠性的重要技術(shù)措施。正確的接地能抑制干擾對(duì)系統(tǒng)的影響，又能抑制廣播設(shè)備向外輻射干擾；反之，錯(cuò)誤的接地會(huì)引入嚴(yán)重的干擾，甚使廣播設(shè)備無(wú)法正常工作。所有的電力電纜及信號(hào)電纜均穿金屬管保護(hù)，這樣能起到一定的屏蔽作用。

If the equipment quality is qualified, pay attention to the connection between the equipment signal lines. If the connection is incorrect or inappropriate, even the equipment with good performance can hardly exert its excellent quality. Grounding is an important technical measure to suppress noise, prevent interference and improve reliability. Proper grounding can suppress the influence of interference on the system and the outward radiation interference of broadcasting equipment; On the contrary, wrong grounding will lead to serious interference and even make broadcasting equipment unable to work normally. All power cables and signal cables are protected by metal pipes, which can play a certain shielding role.

3、不要隨意焊接屏蔽線

3. Do not weld the shield wire at will

在機(jī)房設(shè)備安裝過(guò)程中，不要圖方便而隨意焊接屏蔽線，否則易形成閉環(huán)回路，引起系統(tǒng)噪聲問(wèn)題。防止閉環(huán)回路形成的有效方法：(1)屏蔽層一端接地(一般在信號(hào)輸入端)，另一端開(kāi)路；(2)分清機(jī)殼接地點(diǎn)、信號(hào)接地點(diǎn)幾種接地點(diǎn)。

During the installation of equipment in the machine room, do not weld the shield wire at will for convenience, otherwise it is easy to form a closed loop and cause system noise problems. Effective methods to prevent the formation of closed loop: (1) one end of the shielding layer is grounded (generally at the signal input end) and the other end is open; (2) Distinguish the chassis grounding point, signal grounding point and several grounding points.

4、日常維護(hù)

4. Routine maintenance

山東公共廣播音響廠家建議您要定期檢查和測(cè)試背景音樂(lè)功能，確保系統(tǒng)功能能夠正常使用；定期對(duì)揚(yáng)聲器的回路進(jìn)行測(cè)試，保證揚(yáng)聲器回路處于正常狀態(tài)，有效避免在出現(xiàn)緊急情況時(shí)能夠正常使用；考慮到電子設(shè)備容易受到灰塵等的影響而出現(xiàn)故障，因此在設(shè)備使用過(guò)程中，需要定期進(jìn)行清潔，清理灰塵的時(shí)候需要用專用的工具，且注意勿將灰塵調(diào)入設(shè)備內(nèi)。

Shandong public broadcasting audio manufacturers recommend that you regularly check and test the background music function to ensure that the system function can be used normally; Regularly test the loudspeaker circuit to ensure that the loudspeaker circuit is in normal state and effectively avoid normal use in case of emergency; Considering that the electronic equipment is prone to failure due to the influence of dust, etc., it needs to be cleaned regularly during the use of the equipment. When cleaning the dust, it needs to use special tools, and pay attention not to transfer the dust into the equipment.

公共廣播音響系統(tǒng)終呈現(xiàn)效果與設(shè)備質(zhì)量、安裝調(diào)試及后期維護(hù)有關(guān)，為了防止出現(xiàn)不好現(xiàn)象，以上幾點(diǎn)要注意。更多注意事項(xiàng)來(lái)我們網(wǎng)站http://www.zkvd.cn咨詢了解吧。

The final effect of public address sound system is related to equipment quality, installation, commissioning and later maintenance. In order to prevent bad phenomena, the above points should be paid attention to. More notes to our website http://www.zkvd.cn Consult and understand.