The speaker, also known as the speaker, is widely used in life. As a car rearview mirror horn on the car, there will be some faults during the use process. In this way Items. As a car rearview mirror speaker on the car, there will also be some failures during the use process, so that we have more understanding when the failure occurs and find the corresponding problem. The problem is.

The common faults of the horn are in the following::

1. Opening failure: The resistance between the two pins is infinite, and the external manifestation is that there is no sound of a horn.

2. Burnal damage: The tape's paper pelvis parts are damaged, and the speaker needs to be replaced during repair.

3. Poor sound failure: Soft faults that belong to the horn, usually cannot find obvious fault features, which are manifested as unpleasant sounds. Such failures need to be replaced with speakers.

4. Wetness failure: Although the inside of the horn is closed, if the seal is not tight, the weather or other situations of the rain and snow fog, there will be water vapor in water or air, leading to failure to work.

5. Portal contact with adverse faults: The internal components of the speaker are welded such as electromagnetic coils. If the insulation paint on the end lacquer line is not clean or the rivet press is not reliable, it is easy to cause virtual connection faults, resulting in poor horn work. This failure is the reason for the quality of the speaker. It cannot be repaired and can only be replaced.

Under amateur conditions, there are some simple methods that can be used for the test of car rearview mirror horn failure, such as audition observation, the use of multimeter. The audition method is the output end of the power amplifier of the speaker street, and the sound of the speaker is judged by the sound. The use of a universal meter can measure the DC resistance. When the measured resistance value is infinite, or it is far greater than its nominal impedance value, it means that the speaker has been damaged.

The above is the common failure and basic inspection method of automotive rearview mirror horn. If there are other questions about horn or car rearview mirror horn, please contact us.