What to Do When Car Audio Makes Abnormal Noises?
1 Answers
There are several situations when car audio makes abnormal noises: 1. Contact point erosion: If the horn is pressed for a long time, it can easily cause the horn contacts to erode and produce impedance. The current flowing through the electromagnetic coil weakens, the electromagnetic suction decreases, and it cannot attract the armature to drive the diaphragm to vibrate normally, resulting in a hoarse sound or even no sound. However, when the horn is pressed continuously, if a strong instantaneous current passes through the impedance, it can still work normally, so the problem may come and go. 2. Poor sealing leading to moisture: Although the interior of the horn is a sealed part, if the sealing is not tight, fog may enter during car washing or there may be water vapor in the internal air. Water vapor can easily cause the contacts to become damp and fail to work properly. 3. Poor contact of the electromagnetic coil terminal: Some horns have the enameled wire terminal joints of the internal electromagnetic coil connected by aluminum metal rivets, rather than being firmly welded. If the insulating paint on the enameled wire ends is not properly treated or the rivet connection is not firm, it can easily lead to a false connection fault, causing the horn to malfunction. This type of fault is due to the quality of the horn and cannot be repaired; only a new part can be replaced.
