What if Laptop Keyboard Not Working?

whang2011

I have recently accidentally spilled some water onto my HP Pavilion Keyboard  around 10 or 11:00 A.M. on Tuesday.
It took me about 30 seconds to find a towel to dry it off and in doing so,
I ran roughly to and fro across the Laptop Keyboard with the towel.
I spent the rest of the afternoon on faceook. I shut the laptop down around 4:30 P.M.
After Tuesday night bible study service, I tried to turn my laptop computer on to show a friend some photos.
When the log on screen came up, I tried to type my pass word in, but the keys ran and most keys were stuck or didn’t respond.
I shut it down then when I got home, I started it up again, but only this time the laptop mouse pad and the keys were not working at all.
I shut it down again and decided to put the laptop in a garbage bag with a pack of rice on top of the laptop in the same bag. The rice had punched holes in it. I left it like that for 2 days. I turned it on again and the mouse pad now works, but the keys still didn’t respond. I had my brother take my laptop apart and he dried the inside with a hair blow dryer and now it’s completely dry. He told me he didn’t see any damage to the circuits.
After putting the computer back together, I started it up. The laptop loads just fine, but the keyboard is not working at all. Some letters like w,o,r,\,/, spacebar, ect. are working, but the majority of the keys are not. I’m using a USB HP Keyboard  plugged up to my laptop USB drive and it works fine.
My question is, will buying a HP Keyboard replacement help resolve the issue or do you think it’s possible the keyboard controller chip could be damaged or fried by the water and if so is it replaceable? If there is a keyboard controller chip, where is it located?
MY  Compatible Parts Specs are:
Windows 7 Home Premium Service Pack 1
HP Pavilion g7 Notebook PC with AMD A6-3420M APU with Radeon AMD HD Graphics 1.50 GHz
Quad Core Processor
5.48 GB of System Memory (RAM) usable
64-bit Operating System
500 GB Hard Drive