The problem is that soda has chemicals and sugar that have now dried over the circuits...almost impossible to find. The liquid might also have short-circuited something.

You could try to spray plain water in small areas and wipe, don't blow it dry. Wiping will take any residue up with the water...if you don't have a circuit failure, this might help.

But I fear you would need to dismantle and chase down each area that the soda touched for this to work.

where can you get that?