Pharma finished goods HS code references

List of the contents of this article:

• 1, How to repair the car horn when it rings and doesn't sound
• 2、How to solve the noise of the car speaker
• 3,Pharma finished goods HS code references Car horns, the role played in the whole system!

How to repair the car horn when it doesn't sound

The reasons and solutions for car horns when it rings for a while;The problem of the speaker itself. If the speaker fails, a new speaker needs to be replaced. If the speaker is used for a long time, it is normal for the speaker to be aged and damaged, and the problem of the speaker itself is difficult to repair. The solution is to change a new speaker.

Check the power line: First, check whether the power line is in good contact and whether there is a short circuit or disconnection. If there is a problem with the line, it is necessary to repair the power line to ensure that the power runs smoothly. Replace the button or switch: Sometimes, the car horn does not sound because the button or switch is in poor contact or damaged.

There are two common reasons why the car horn rings and doesn't. The solution is as follows: the problem of the horn itself. If the horn fails, a new horn needs to be replaced. If the speaker has been used for a long time, it is normal for the speaker to age and be damaged. The problem of the speaker itself is difficult to repair. The solution is to replace a new speaker.

Check whether the position of the horn plug is normally energized when the vehicle horn does not sound. If the position of the horn plug is normally energized, it can be confirmed that it is a problem with the speaker, and replacing a new speaker can solve the problem.

If the sealing is not strict, it is easy to be damp: Although the inside of the horn is sealed, if it is not tightly sealed and there is water vapor in the air of the fog or the internal space when washing the car, it is easy to know that the water vapor will cause the contacts to be damp and unable to work properly.

Press the horn switch. If the horn sometimes sounds and sometimes doesn't, it is mostly due to poor contact between the contacts inside the speaker switch, and some are also problems with the speaker itself.

How to solve the noise of the car speaker

1. There may be many reasons for the sudden noise of the car stereo. Here are some possible solutions: check the sound source: if you are using a foreign For the sound source (such as mobile phone or MP3), it is recommended to check whether there is a problem with the sound source itself first, and try to replace a different sound source or use other devices for testing.

2. Use a multimeter to measure whether there is electricity here when pressing the horn switch. If there is no electricity, it should be checked.The harness and speaker relay, if there is electricity, it is the problem of the speaker itself. At this time, you can also try to adjust the adjustment nut on the speaker to see if it can make a sound. If it still does not sound, you need to replace the speaker.

3. If you don't want to be so inconvenient, the most immediate way is to modify a sound frequency filter. Although it is more or less harmful to the sound tone, at least it can completely eliminate the problem of abnormal sound of electric flow.

4. First of all, confirm whether the noise is caused by the sound itself. If it is indeed caused by the sound itself, there is no need to worry. Generally speaking, it is because the speaker is burned. Which ones are faulty abnormal sounds, and which are reasonable abnormal sounds. When I went to the repair shop to test the abnormal sound of the vehicles, only nearly 20% of the vehicles really had problems.

5If the above measures cannot solve the problem, it is recommended to send the vehicle to a professional car repair station to overhaul the circuit. How to adjust the volume of the car interference horn? If the speaker has a current sound problem, in addition to checking the circuit system, adjusting the volume is also a way to solve the problem.

Car horns, the role played in the whole system!

1. Speakers (commonly known as speakers) play a huge role in the whole sound system, and it can even affect the style of the whole sound system. Every good speaker has his own personality, and so does the speaker. In the process of car audio modification, the change of the host and speaker is the most common modification.

2. [Pacific Automobile Network] Car HornThe function is to warn pedestrians and attract the attention of other vehicles to ensure traffic safety. At the same time, it is also used to urge and transmit signals. Car horns are basically equipped on every car. Original title: Let's learn about car horns. Horns are audio signal devices for cars.

3. The main function of the electric horn of the car is to make a sound to remind other vehicles of their existence or avoid traffic accidents. In addition, it is often necessary to sound the electric horn to warn or remind others during driving. Under normal circumstances, automobile electric horn parts are composed of horn control switches, power cords, integrated circuits and horns, etc.

4. [Pacific Automobile Network] The role of car audio speakers: to reduce the fatigue of drivers on the way. Car audio can play songs, crosstalk, etc. for drivers and passengers; provide traffic information, there is generally a traffic broadcast in every city, through which traffic information can be received in order to better adjust the route.

5. Car audio mainly includes three parts: host, amplifier and speaker (speaker). The host is the most important component of car audio. Popular hosts include RADIO host with only broadcast reception function, RADIO plus MP3 host, CD host, MP3 plus CD disc case, CD plus navigation host and CD/DVD/car MP5 host, etc.