Sony Vaio VGN-FS640/W sound issue

[qgreene7]

i have a sony vaio vgn-fs640/w and when i power it up i hear the power up sound but then i cant get sound through head phones jack or speaker for anything else i only her sound when i turn the computer on I'm completely stumped ive went to the advanced sound settings and when i click test i hear nothing please help

 

[Rit_86]

Right click the speaker symbol on the taskbar, click "open volume mixer" and put everything to maximum. See if it helps.

 

[qgreene7]

Yea thats was my first thought as well but when i tried i still got nothing so its got to be something more complicated its weird because i know the sounds works because it makes noise when i turn it on but then after that nothing even when i hook up head phones which baffles me even more thanks for your taking time to help though