How to repair the clothing anti-theft device not beeping?

We have seen clothing anti-theft devices in our daily life. It can well prevent the theft of clothes in clothing stores, and the effect is much better than other anti-theft devices such as monitoring. The mood of the clothing anti-theft device is also good and sometimes bad, and sometimes I like to have a little emotion, such as the alarm does not sound or the alarm does not even sound for a long time. Let's take a look at how to fix it.

When the clothes with anti-theft buttons pass through the clothing anti-theft device, the anti-theft device will flash the red alarm light and make a beeping sound. But sometimes when the anti-theft tag passes through the clothing anti-theft device, the alarm light of the anti-theft device is on but there is no alarm sound. What is the reason? When the clothing anti-theft device is in normal use, when the anti-theft tag with a fixed frequency passes through the anti-theft system , the system detects the signal will make the receiver alarm, the alarm will have sound and LED alarm light prompt function; the staff can deal with it in time after receiving the alarm prompt information. When the anti-theft tag passes through the system, the alarm light of the receiving antenna lights up immediately, but there is no sound. The general reasons are as follows:

1. The buzzer interface of the receiving motherboard is in poor contact or the buzzer connection line is damaged;

2. The buzzer is damaged or the power supply of the buzzer is damaged;

3. The volume jumper pin port of the receiving motherboard is not connected;

4. The volume interface of the motherboard is faulty;

In view of the above situation, we should correctly determine the problem and take the following solutions:

1. Check whether there is a problem with the buzzer circuit, such as whether the connecting line is damaged;

2. Pull out the plug of the buzzer and plug it back in again;

3. If the above problems cannot be solved, connect the terminals of the buzzer to the power supply input port of the receiving main board respectively, pay attention to the positive and negative directions, if the buzzer will alarm, it means that the buzzer of the main board The port is faulty; if the buzzer does not alarm, it means that the buzzer is damaged, and the buzzer can be replaced;

4. Unplug the volume of the motherboard, clean the dust, and then plug it in again. If it doesn't work, replace it with a new volume interface;

If it is not for the above reasons and you have no solution, you can cut off the power supply of the anti-theft door and contact the after-sales engineer to ask the reason and solution.