A. Verifying the normal headset equipment
: If there is a problem with the headset, then there will be no sound when the headset is plugged into the notebook.
Verification Method:
Method One:
Look for sound when you plug the headset device into another computer or mobile device. If the headset is plugged into another device and there is no sound, it should be a fault for the headset itself, which basically eliminates the problem with the laptop.
Method Two:
Watch for sound after replacing other headset devices. If the other headphones inserted in the notebook after the sound, it should be the headset itself caused by the fault, the basic rule to eliminate the problem notebook.
B. See if your notebook is set to mute status
: If the mute state is set, the notebook will not sound after inserting the headset.
Suppress Mute method:
method One:
1. Click the left mouse button on the lower right corner of the screen "small horn" icon, the following figure:
2. Click on the mute "small horn" icon, mute can be canceled, the following figure:
Method Two:
Press the keyboard "FN" + "F6" key combination to remove the mute.
C. Verify that the sound playback default device is a native sound card
: If the sound playback default device is not a native sound card, then the laptop will not sound when plugged into the headset.
To view the sound playback default device method:
1. Click the "Start" menu in the lower left corner of the mouse and select "Control Panel".
2. Select "Sound" in the control Panel.
3. In the play, see if speakers are the default device, as shown in the following figure:
4. If the speaker is not the default device, right-click "Speaker" and select "Set as Default Device".
5. After setting, click "OK" below.
D. Reinstall the sound card driver
: If you have no problem checking the above settings, you will need to reinstall the sound card driver.
Install sound card Drive method:
1. Open "SW Update" software, as shown below:
2. In this software window, click the "Find Model" in the lower-left corner.
3. Enter the product detail model in the Search window in the upper-right corner, taking "NP535U3C-A02CN" as an example.
4. Select the search model "NP535U3C-A02CN".
5. Click on "Windows 7".
6. Check the "sound driver" and click "Export" below.
Follow the above method to install the sound card driver download, and then observe again whether there is a sound in the notebook plugged into the headset.
If we can not solve the system to restore operations, you can try to back up the C disk of their important information, the notebook's operating system for a key restore