Industry information

Speaker common faults and troubleshooting methods

Source: KONWHAI TOUCHAuthor: nick Date: 2019-02-23 Click:

  •      With the development of the economy and the improvement of people's living standards, the requirements for advertising carriers have also undergone earth-shaking changes. I no longer like to read boring newspapers, and I am too lazy to flip through the books to get the information I want.
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  •      Therefore, the LCD advertising machine was born, and the LCD advertising machine has a rich picture and high-definition intelligence, which has become the focus of attention in many fields.
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  •      The LCD advertising machine is equipped with audio. Then, if there is sound, it means that there is a speaker. In our daily use, how should the speaker be eliminated and solved?
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  • Speaker common faults and troubleshooting methods

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  •   Common faults and troubleshooting methods for horns:  
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  • 1. Low-frequency noise exceeds the standard: AC 220V/50Hz interference produces “beep”, the cause of the fault:
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  •      a. the machine metal housing is poorly grounded or the local AC interference;
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  •      b. computer power interference or poor grounding of the chassis;
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  •      c. the volume of the machine is not adjusted well;
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  • 2. High frequency noise exceeds the standard, the cause of the failure:
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  •      a. the audio line is broken, open circuit;
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  •      b. audio line quality issues;
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  •      c. Infrared grounding and poor grounding of the display;
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  •      d. high frequency noise interference of the computer;
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  • 3. The resonance noise exceeds the standard: the noise generated by the large vibration of the speaker cone when the volume is turned on.
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  •      The cause of the malfunction: there are extra slides, the inside of the machine is not handled properly, the screws are loose, and so on.
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  • 4. External noise source interference: such as with town source fluorescent lamps, motor vehicles, active multimedia speakers and so on.
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  •      The above is a description of common faults and troubleshooting methods for speakers. When the user purchases the LCD advertising machine and the speaker is faulty during use, it can be easily solved according to the above steps. If you want to know more about the technical questions related to the LCD advertising machine, please collect our official website and pay attention to it frequently.
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