As soon as the switch is pressed, it runs in, why does it make a noise from time to time?

First, first confirm that the hardware is fine. If the speaker is fine, the sound card is fine, and if you've tested it on other machines and it's really good, then you can read on.

It is strictly forbidden to copy and repost, the eagle of the Gobi Desert

2. Make sure all the cables are exactly right. Then power on the speaker and turn on the volume switch.

3. Install the driver of the sound card correctly, if it is an onboard sound card, it is best to install the driver provided on the driver disk of the motherboard.

In fact, the computer does not make a sound, and many times it is because the sound card is not driven correctly. In general, after the sound card driver is installed, there will be a small speaker icon in the taskbar in the lower right corner. ）

Fourth, if you are sure that the driver is installed correctly, then take a look at the volume settings in the computer.

The specific method is to double-click the speaker icon in the taskbar, and check whether the volume is turned off to the minimum in the "Volume Control" and "Waveform" dialog box in the pop-up "Volume Control" and "Waveform".

If these two options are not available in the dialog box, click on the "Options" menu - select "Properties" - select "Volume Control" and "Waveform" in the "Show Volume Controls" and then set them correctly.

Note: Step 4 can only be set up after the driver for the sound card has been installed correctly.

What to do with it, just change it to a new one!

The light switch has a current sound that is poor contact.

If you hear the sizzling sound of the light switch, it is due to excessive current and electric sparks caused by poor contact, which can damage the copper sheet and cause a fire. Therefore, in the process of using the socket, it is necessary to check whether the contact between the plug and the switch is good in time, and if a problem is found, it is necessary to replace the new socket of ***. At the same time, if the copper sheet is deformed and falls off or loses its elasticity, it is also necessary to adjust or replace the socket in time to prevent the hidden danger of safety macroburiation.

Considerations for choosing a light switch:

When choosing a light switch, there are many factors to consider. First of all, it is necessary to choose a special style switch such as waterproof, moisture-proof or high-temperature resistant according to the use environment. Secondly, it is necessary to choose single-control, dual-control or three-control switches according to various scenarios and needs.

Also choose the style and color according to your personal preferences and decoration style. In addition, it is also necessary to pay attention to the quality and credibility of the switch, and avoid choosing inferior brands and substandard products to ensure the safety of household electricity. <>

Summary. The solution to hear the sound as soon as the switch is opened: 1. If the switch on the wall makes a sizzling sound after opening, then it is generally caused by the problem of poor contact in the wiring position on the back of the switch, and then it is necessary to remove the switch cover and conduct a detailed inspection of the wiring position on the back of the switch to see what causes the poor contact, and then take the corresponding method to deal with it.

2. There are generally many reasons for poor contact in the wiring position on the back of the switch, and the processing party is also different if the reasons are different. Some of them are caused by the aging of the reeds in the wiring position of the switch, which leads to the inability to connect the wiring position tightly. In this case, it is necessary to replace the reed or simply replace it with a new switch.

The solution to hear the sound as soon as the switch is opened: 1. If the switch on the wall makes a sizzling sound after opening, then it is generally caused by the problem of poor contact in the wiring position on the back of the switch, and then it is necessary to remove the switch cover and conduct a detailed inspection of the wiring position on the back of the switch. 2. There are generally many reasons for the poor contact phenomenon in the wiring position on the back of the opening and loss Yuguan, and the processing party is also different if the reasons are different.

Some of them are caused by the aging of the reeds at the wiring position of the switch, which leads to the inability to connect the wiring position tightly. In this case, it is necessary to replace the reed or simply replace it with a new switch.

3. It is also possible that the operation of the wire on the back of the switch is not standardized when winding, resulting in poor contact between the wire and the binding post, so as long as the wire and the binding post are rewired. 4. It may also be because of the serious oxidation phenomenon of the reed on the back of the switch or the pure oak surface of the wire, when the resistance is too high, it will lead to local heating and appearance, which will lead to poor contact at the wiring position, and then it is necessary to replace the new reed or wire.

5. It is also possible that the solder joints at the wiring position of the switch have fallen off or loosened, resulting in poor contact between the wire and the binding post. 6. It is also possible that some areas of the wire on the back of the switch have bloomed, resulting in a short circuit in the circuit, so the switch will naturally make a sizzling sound, and it is best to replace a new wire at this time, so as to avoid electrical accidents. 7. If the wall switch has not been repaired, so that the switch has been sizzling, then after a long time, the wall switch is prone to burn out, Xunhui or cause the related circuit to burn, then there will be a power outage at home, so as to bring greater unchanged to the life of the owner.

Current sound, because the air switch has a short-circuit protection is the use of current flowing through the coil to generate a magnetic field to attract mechanical decoupling, the principle should be the same as the contactor, reduce the load sound should be no or smaller.

1. The rated current of the air switch is small, and the current flowing through the air switch after you turn on the water heater is too large. ）

Second, it is also possible that the installation of the air switch is loose, and the high current causes vibration and sound.

3. The wiring screws at both ends of the air switch are not tightened, causing heating and vibration.

Fourth, you can think about why it rings.

2. The harmonic component in the current causes the resonance of the electromagnetic components in the air opening.

Generally these two possibilities.

If it is a sizzling or crackling sound, it is usually the wiring that is not tightened and ignited.

1 The wiring is loose 2 Change the switch.

Reducing the load is not going to think. It didn't solve the problem. Is it broken or some other reason. The line is connected. It's the same thing, that is, he can ring. Here's why.

Normal, it is generally caused by the empty inlet and outlet screws are not tightened, and the screws can be tightened.

An air switch, also known as an air circuit breaker, is a type of circuit breaker. It is a switch that automatically disconnects whenever the current in the circuit exceeds the rated current. The air switch is a very important electrical appliance in the low-voltage distribution network and the power drive system, which integrates control and a variety of protection functions.

In addition to completing the contact and breaking circuits, it can also protect the circuit or electrical equipment from short circuits, serious overloads and undervoltages, and can also be used to start the motor infrequently.

Well, it's all like this, hehe, you're really careful, if you tighten the screws of the crimping, it won't be like this, there's no problem.

Normal, it is generally caused by the empty inlet and outlet screws are not tightened.

When the switch is turned off and operates normally, there should be no abnormal sound!

If you really want to say that there is a sound, it can only be a slight electromagnetic sound!

Assuming that after the switch is turned off, there is still a loud "squeak" sound, it means that there is an abnormal phenomenon inside the switch!

This abnormal phenomenon is actually that there is a relatively obvious hidden danger of poor contact in the contact inside the switch!

The solution is:

1. Open the switch shell and carefully check the contact of each contact inside the switch, you can clearly see that a certain contact has a more obvious poor contact caused by arcing.

2. According to a certain point of poor contact, carefully polish the contact point with fine sandpaper until the brilliance is smooth.

3. Then carefully adjust the simultaneous state of the three contact points until the same period and the pressure balance degree are the same!

In a word, you need to be patient to inspect and repair!

Remember! Be sure to pay attention to safety when inspecting and repairing! Don't be negligent!!

What was that? Is the current sound? Or the system is stuck.

Poor line contact, leakage.

Perhaps the power of the electrical appliance is too high, and the protective device of the switch is tripped, and the line connection part, or the gate knife and the air opening wiring screw are fixed firmly. Or there may be a virtual connection phenomenon in the line, so that the current in the line increases, the gate in the process of permanent use, the contact oxidation, there is a poor contact caused by ignition, will emit an intermittent 'zizi' sound, once you stop all electrical appliances, this sound will be interrupted.

There is a certain danger, hurry up and find an electrician to repair it, the main reasons for the sound of the gate are as follows:

1. Too much power of electrical appliances is the so-called overload.

2. The power of the brake is too small.

3. There is a problem with the line. In other words, there may be a false connection in the line, which will increase the current in the line.

4. The gate is damaged. In other words, during the normal use of the brake, the contacts are oxidized, and the contact defect occurs.