Win7 system driver does not have a sound solution

Windows 7 System integrates a large amount of device drivers, after installation, all device drivers have been installed, the motherboard integrated analog Devices company produced Soundmax ad1986a sound card is recognized as "High-definition audio Device", with Windows Media player can play MP3, the Volume Control slider can be dragged, and the volume indicator is beating, but the computer has no sound. After a few fumbling, finally from the volume icon tips and Volume Control dialog box to see the problem, they suggest that the playback device unexpectedly is "headphones."

1, click on the volume indicator "synthesizer", open its dialog box.

2, click the "Equipment" menu, there are "headphones" "speaker" two items, "headset" for the default device. Click to select Speakers, the computer still does not sound, reopen the volume synthesizer, the default device on the device menu, or headphones, it seems that you cannot change the default device here.

3, right click on the volume icon, select Play device, open the Sound dialog box, under the Play tab, select Speakers, click Set as Default, and then click Configure.

4, in the Open "Speaker installer", in the "Audio channel" selected "Stereo", click "Test", the left and right speakers in turn came the sweet music.

5, return to the "Voice" dialog box, OK, problem solving.