Samsung laptop issues after water spilled on it

Hello
I have a laptop Samsung NP-r530 using Windows 7, which spread a cup of tea. Trying to get it to work again, I used to recovery solution from Samsung 4, to restore to the date of purchase. The laptop now works well except for some keys does not work.
Some other issues that I have is, it says no audio output device is not installed and my cyber link youcam built into the camera asks me to connect a device or make sure a device is turned on.
Kindly help.
Thanks in advance.
