What is the reason why the laptop plugged in does not respond

1. The reasons why the laptop does not respond when it is connected to an external speaker are:

1. The sound card driver is abnormal or the sound card is disabled.

2. There is a problem with the audio cable.

3. Caused by other viruses.

Second, the laptop is connected to the external speaker and there is no sound processing method:

1. Check whether the sound card, cable, speaker and other devices are connected normally. If you have a virus, you should run antivirus software for full antivirus.

2. Open the control panel - add new hardware - next, after the search is completed, click "No, this hardware has not been added", click next. In the dialog box that appears, check Click Done, shut down the computer, restart to add new hardware. Note that this refers to shutting down and then starting, not restarting.

In general, the problem can be resolved after rebooting.

3. Right-click "My Computer" --Properties--Hardware"--Device Manager", and open "Sound, ** and Game Controller" for any problems, that is, see if there is a yellow one in front? If so, uninstall it, then put it into the CD drive and reinstall the drivers for this device.

4. If the "Device Manager" - Sound, ** and Game Controller" is no sound card hardware, then you have to find your sound card, including the integrated sound card, the model must be accurate, after confirming that the sound card is found, then put it into the system drive disk, install the sound card driver.

First of all: check whether the affected interface is plugged in incorrectly, the speaker generally has a power supply, check the power cord to check it.

Secondly: check whether the sound switch is turned on, whether the sound is turned on (generally can be rotated) Again: Check whether the sound of the computer is turned on.

Finally: if it still doesn't work, try it on other computers;

If it still doesn't work, consider pushing it off (if it's a new one), or repairing it;

The connector is damaged or the driver is not installed.

Hello, I am Xiao Zhou in the field of electronics and digital, I am very happy to have your questions, please don't worry, I will answer them for you.

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It is recommended that you try to de-energize the machine and let it sit for a while, here's how:

1.First, remove the power adapter, battery, and other external devices such as mice.

2.In the absence of power supply equipment, press and hold the power button for about 1 minute;

3.Then do not connect the power supply equipment and let it stand for about 30 minutes;

4.Do not plug in the battery after standing, only use an external power supply for power supply, connect the machine end of the power supply first, and then connect the socket to see if it can be turned on.

Questions. Okay, it's just that I can't charge after changing several sockets.

The power button is also not lit there.

Let's try the above first.

Questions. It's right to press and hold the power button for a minute, and there is no power that doesn't turn on, right?

Well, this is to clear the motherboard of the remaining power.

Questions. <>

Still no, the lights don't come on.

There are several reasons why the machine can't be opened: First, the built-in power supply module is damaged.

The second memory module is not plugged in properly.

Third, the graphics card is not plugged in properly.

The notebook is not easy to repair.

It is recommended to send it directly for repair.