I Need help with taking my Keyboard apart..Sony PCG-7G2L?

I have a sony Viao Laptop,At the bottom of the case the model number is PCG-7G2L. My K key broke and i ordered a new one but no instructions came with. I looked on sony website but no luck. Can anyone HELP me take apart my latoptop and get the keyboard out to replace the key.. thanks so mush in advance........DAN?