SOURCE: Volume drops
um, it might be, simple or stupid, thought check the sides of the keyboard, the optional buttons, the volume down, might be stuck, hope it helps
=D
SOURCE: Repair/replace touchpad on Sony VAIO VGN-FS660/W
dear kenkasza, i am afraid that you will lose the warranty if you open ya laptop all by yourself.
SOURCE: I have a problem with keyboard volume control
You might have uninstalled a software on your system that support the function keys. Check the support website of your system. You might find the software for your keyboard shortcuts.
SOURCE: FN keys don't work on Sony VAIO VGN-SZ18GP
The solution is as follows, which worked for me:
- Install Windows 7
- let it update all the drivers that it needs to
- Install additional Sony drivers that you need (XP drivers work just fine, but make sure to install them in Administrator mode, so, Run as Administrator), such as camera, fingerprint scanner, etc
- Install the Notebook Control Device Driver (without this the other software does nothing)
- Sony Utilities DLL
- Sony Shared Library
* restart computer *
- Sony Video Shared Library
- SUS (Setting Utility Series)
* restart computer *
- VES (VAIO Event Service)
After this one the Fn keys will start to work. The S1 and S2 keys don't work due to something to do with UAC (but I don't need them anyway)
- VAIO Control Centre (will allow you to change what the S1 and S2 keys do, even though you can't use them :) )
That's it and it worked for me.
SOURCE: sony vaio sound stopped working
on your key pad there are also volume controls they will be the fn keys hold down the fn key and press the fn key with the little speaker on it
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