Motherboard speakers but only one rings?

There are 3 in the computer, one is a microphone and one is a headphone output. One is the CD output. You switch to the CD output and see.

There is a problem with the motherboard's audio interface. Plug it in and turn it around.

Because most of the transistor amplification is based on OCL circuit structure, this circuit does not have the output capacitance such as OTL circuit, so when the power amplifier is connected to the power supply, the input terminal of the power amplifier voltage amplification part will have a sudden voltage, and after the power crystal is amplified, it will sound in the horn.

In order to prevent this frightening sound, some power amplifier manufacturers install a delay switch in front of the speaker output, which is generally designed with the spring switch (relay) of the relay, and uses a simple crystal circuit to generate +5V or +12V energized to drive the electromagnet in the relay to drive the spring to turn on the circuit, so that the entire horn output line is connected.

Hello, the reason why the speaker is plugged into the computer host does not sound.

1. Hardware damage or wrong connection to the computer speaker may be due to hardware problems, in this case, only take the speaker to repair, or replace it directly, or it may be that the speaker wire is not plugged in or the switch is not turned on, as long as all the connecting wires are connected correctly, turn on the switch and volume. 2. The sound card driver is incorrect1. Right-click "My Computer", then click "Properties", select "Device Management" in "Hardware", and click "View Devices by Type". 2. There is an option in the window of "sound, ** and game controller", note that there is no "or" below!

If so, the sound card driver of the computer is incorrect, and you need to reinstall the sound card driver. 3. Right-click on "Traditional Audio Driver", select "Update Driver", click "Yes, only this one", select "Next", and then you will see the option of "Automatically install software", after selection, the computer will automatically search for drivers on the Internet. 4. After the search results come out, follow the computer prompts to install.

The above is all the answers to your questions, I hope it will be helpful to you, and I wish you a happy life

When many users use the computer, they find that there is no sound after the computer is plugged in with the stereo, and they don't know what causes it.

1. Plug in the wrong hole.

Under normal circumstances, as long as the computer sound card is driven correctly, after inserting the stereo, you can hear the sound of a song, but some users do not particularly understand the jack of the computer sound card, thinking that a hole can be used normally, although this idea is not wrong, but based on the different computer structure and system version, there may be a situation where the audio cannot be sounded. The structure of the sound card, as shown in the figure below:

It should be noted that do not plug the speaker into the front panel of the computer, although it can also be used, but additional settings need to be changed, which is more troublesome for ordinary users, and it will kick it if you are not careful, you can directly plug the plug of the audio data cable into the sound card on the back panel of the computer (light green jack), you can hear the sound, if you plug it incorrectly, you can't hear the sound.

2. Connection error.

Taking home audio as an example, it is generally used by a subwoofer with two channels of small speakers, and the output and input interfaces are divided when connected. As shown below:

Under normal circumstances, one end of the data cable connected to the speaker will be plugged into the sound card on the back panel of the computer (light green jack), and the other end will be plugged into the "input" jack of the main body of the speaker, and then the subwoofer and the rest of the small speaker connection cables will be plugged into the "output" jack.

3. Audio switch.

Many users often make some common sense mistakes, some speakers are not connected to the power and can be used, there are one or more switches, the better the speaker, the more switches it has. As shown below:

If you find that the computer speaker has no sound, the first thing to check is whether the switch of the speaker is turned on, whether the power supply is normal, many users because of the lack of understanding of the audio, often make some common sense mistakes, which is extremely common in reality.

Digression:In addition,There are some situations that will also cause the computer to plug in the speaker without sound,Such as sound card damage、Audio damage、Sound card drive error、The default output device of the computer system is set incorrectly, etc.,But this kind of problem is for computer novice users,Setting、Detection、It is difficult to maintain,It is best to find after-sales testing and maintenance directly。

Hello dear, glad to answer for you! The causes and solutions are as follows: 1. Reflect on whether there is a problem with the computer host.

You can first take a good pair of headphones and plug them in, if there is no sound, first reflect on whether the interface can be plugged in wrongly, and the desktop computer will see if the interface is loose. No problem, then look at the interface for impurities, if there is any, use a filament to dispose of it. 2. Click on the speaker in the lower right corner of the mission bar, if the icon is not displayed, click "Moderation Panel" in the lower left corner of "First" Sound Voice and Audio Equipment to set the sound.

3. Let's see if you can mute the sound on the web page. If so, you can use the mouse to dispense. 4. A sound card is driven from the new Xia's celery bucket.

In the face of the computer for a long time, to maintain good health, all kinds of hazards should be paid attention to, especially the protection of radiation and face ** and eyes, as follows: 1When using the computer, it is necessary to pay attention to the body to maintain a normal healthy sitting posture and keep an appropriate distance from the screen, the closer to the screen, the greater the impact on the eyes, and the greater the electromagnetic radiation to the human body, so it is better to be half a meter away from the screen.

2.Take a break from using the computer for about an hour, don't sit in front of the computer for most of the day, and sitting for a long time is also very harmful to the body. 3.

Placing a pot of greenery in front of your computer desk can help protect your eyesight by reducing visual fatigue and closing your eyes for a few minutes after working for a while.