White light, no display or startup

So I'm deep into the trail of tears with my MBP 2.4 a1229. I very cleverly spilled some hot tea on my display which essentially killed it. 2/3 dead but everything else worked. I hooked it up to an external monitor and used it for a few days while waiting for replacement parts. No problems with the functionality of the computer at all. I ended up replacing the display and the keyboard. Upon reassembly there were a couple issues. The display worked and the keyboard worked but the computer wouldn't automatically sleep when you closed the cover. The screen would stay lit with it shut and just go to sleep after the designate time. I didn't think this was a huge issue and was just going to take it apart again once I got the time and see where i missed something. Well 4 days after the initial repair I put the computer to sleep before I went to bed and tried to wake it up in the morning. White light in the front is on but no one is home. I have powered it up and down a number of times. the drive spins up but there is nothing on the screen, no start up tone at all and no action other wise. I have tried an external monitor without success. I've reset PMU, changed seating and reseated RAM and tried with and without the battery. Researching i've found a number of issues that might fit like the logic board but the delay in the issue and the sleep problem make me wonder if it's not something simpler. Anyone think this might be some sort of hinge or sleep sensor issue? Any input would be greatly appreciated. Just as a note, I'm 4 hours from the nearest apple store so...

The sleep sensor consists of a reed switch and a magnet. The magnet should be on the edge of the display--you can usually find it with a paperclip. I think we may have the same Mac, and on mine the magnet is on the right side of the display a little over halfway up. When you close the lid, the reed switch would be in the corresponding spot under the top case near the optical drive.
My guess is that the reed switch could be malfunctioning or broken, especially since the computer wouldn't sleep when you closed the lid. Either that, or the magnet was missing or out of place. It's also possible its cable was damaged.
You can also try the steps in this article and see if anything helps:
http://support.apple.com/kb/HT1573?viewlocale=en_US
It's even possible that your computer had developed the NVIDIA issue:
http://support.apple.com/kb/TS2377
Hope something helps here. Good luck!

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