MacBook failing on startup after beer spill
On Sunday I spilled beer on my MacBook keyboard. I quickly turned it off, cleaned up the keyboard, and opened the bottom case to clean it up. I disconnected power and battery and used a dry cloth and some alcohol to dry up any beer I could find. The only place I found beer was around the sub-woofer, so I focused there. I let the machine dry for a few days and Tuesday tried to power it up.
It begins to boot up, I get the chime and the apple and the spinning pinwheel thing for about 8 seconds, and then it goes black. I took it to an Apple store and they want $755 to refurbish the thing. Before I fork over the $$ I would like to try whatever you experts think might help diagnose whether my board is fried or what the main issue might be. The machine charges, and I have plugged the HD into an adapter and am able to access the data, etc. It seems to be functional. What's next?