Why does my stereo keep having a sizzle sound?

The sound has a "zizizi" sound, which is very annoying, indicating that the anti-interference performance of the amplifier is relatively weak, and the reasons and elimination methods are as follows:

Closed to the minimum, at this time there continues to be a sizzling sound, the fault is in the power supply circuit, focusing on the inspection of the four rectifier diodes.

and filter capacitors.

2. The sound of "Zizizi" changes with the volume of the sound, that is, the sound is louder, and the sound of Zizizi is also larger, and this fault occurs in the prestage.

3. First of all, check whether the pre-coupling capacitor is soldered backwards and replace it.

4. All audio input and output wires should be isolated (that is, microphone sheath wires) to isolate interference signals.

5. Plug the power plug in the other way around, which can sometimes reduce the sizzling sound.

Your impression always has a sizzling sound, which means that your impression receives the interference of the signal, so it will make a sizzling sound.

Why does my stereo keep making noise? Because this is at the time of **, or the sound driven by the tape, or it may be caused by the friction between their stereos, this is not a big problem, as long as you take it slowly, the concept of Qianxi is fine.

I think it's most likely because something fell into your stereo and caused a sound, or because your stereo is broken.

Why does my stereo keep having a sexual sound? Then you can check whether there is a problem with the sound of the speaker?

This is the noise coming out of the tweeter. Generally, there are low-end speakers, and people with smart ears can hear it...

Acoustic sizzle is a soft fault, and the general noise has the following states:

1. Communication sound. If the volume potentiometer is turned off to the bottom to a silent pure wide number state, and the sound noise is generally a humming sound, it means that the power filter electrolytic capacitor capacity in the power amplifier circuit is reduced and desoldered, and the same type of components should be replaced, or the filter capacity should be increased.

2. As the volume increases, the hum is also loud, which means that the noise is ** in the pre-amp, first of all, unplug the audio source input wire, and then turn on the volume of Qiaobei, if there is no more, it is a problem with the audio input shielding wire, repair or replacement.

3. Zizi sound, this kind of sound belongs to: a, the first tone in the circuit is too strong, the bypass capacitor in the circuit is too small, the bypass capacitor capacity should be increased, b, the tone is adjusted to the low end.

4. Puff and whistling. a. This kind of sound belongs to the power amplifier components, the circuit layout is unreasonable, the post-amp audio output line and the pre-amp input line cross, parallel to the mixed phenomenon, the resulting self-excitation, parasitic, it is more troublesome to exclude, it is caused by unreasonable installation, or due to the poor contact of the shielding wire, the audio output line of the power amplifier and the audio input line are intertwined. b. The whistling sound is that the microphone is too close to the sound, and the harsh whistling sound is transmitted back to the sound, and the microphone should be as far away from the speaker as possible.

5. In the use of the power supply, due to the interference signal generated by other nearby electrical equipment, it leads to a very strong noise, such as the arc sound of electric welding and household energy-saving lamps, the interference is quite strong, and sometimes the plug can be reversed to reduce it.

Hello dear <>

<> speaker always emits a loud sound for the following reasons: 1. The speaker is damaged, and the reason why the speaker has noise may be that the speaker or sub-box has been damaged. This failure may come from the cabinet amplification circuit or it may be caused by the speaker itself. 2. **File quality problems are now popular on the Internet**, many songs are directly announced from the network**, it is indeed very convenient to use, but it is also because of these open platforms, so the quality of the files is also uneven.

3、The line is not connected to the phone,Whether it is a speaker or a speaker,There is a connection line from the sound source to the speaker,This is the signal line of the line input。 If the cable is not tightly connected, there may be noise.

<> "Hello Friend, <>

The sound sizzle can be caused by the following reasons:1Poor line contact:

The line connection is not tight or loose, resulting in poor transmission of the gear slip signal, resulting in sizzling sound. 2.Poor power contact:

The audio connector is not tightly connected, which will lead to poor power transmission and sizzling sound. 3.Headphone plug problem:

If you use headphones, it may be that the headphone plug is loose, which does not connect well with the speaker, which may cause some noise. 4.Hardware damage:

Damage to the speaker's hardware, such as speakers, audio cables, etc., can also lead to sizzling sounds. 5.Environmental Interference:

Electromagnetic interference can also affect the normal operation of the speaker, so it is best to choose a silent environment to use the speaker. I hope mine can help you<>

How to deal with the noise of the audio:1. The quality of the sound source needs to be checked and the high-quality sound source replaced to solve the problem.

2. To produce a sound of sizzling, it is necessary to check whether the connection line is in good contact and check the integrity of the connecting line.

3. The sound may be that the capacitor of the power amplifier is bulging and needs to be replaced.

4. The sound may come from the interference of the surrounding signal, and the signal shielding needs to be done.

Summary: First of all, it is necessary to confirm whether the noise is a factor of the speaker itself, if it is indeed the cause of the sound itself, there is no need to worry, generally speaking, it is because the speaker is burned. After judging which side of the speaker has a problem, take it apart and check it, and if it can still be said that there is still help.

Take a few drops of cooking oil at home and drop it in the speaker, listen to the sound of **, gently squeeze and then release, repeat many times until it feels smooth. Be careful not to drip too much, too much oil will only damage the speaker.

Why does the sound of the stereo make a sizzling sound, let's find out below.

1. Check whether there are any interfering devices near the speaker, such as mobile phones, microphones, etc.

2. Plug and unplug the audio cable repeatedly, it may be that the audio cable is not in good contact.

3. Check whether the audio cable is damaged, resulting in transmission problems.

Fourth, if it doesn't work, right-click the audio icon, click ** device, click record, right-click the microphone, then click properties, click enhance, check noise suppression, and click OK.