Well this is still new territory to me as well. In the past I've always sanded wooden cabinets down to bear wood and then went with 3 or 4 thin coats of.....purists look away...polyethylene, then a light once over with fine steel wool to take some of the shine down. As far as a finish restorer or wood conditioner; I just came back from Lowes and they did have a lot of wood restore products, with names that I've heard mentioned here in the past. The best advice I can give is to start a topic, someone will be able to help. As for why I was at Lowes; I just picked up a can of spray lacquer with the idea being to save the original finish on a GE 430, if it works it will be a bonus. If not I'll sand it down and give the lacquer another try, after all it does seem to be the proper (aka original) way to go.
Best of luck
Sanding down to bare
wood removes any stain or more likely, colored toner
from the wood.Bare
wood with clear, whether it is poly or lacquer does not look right. We have seen such cabinets here where the owner took off all the coloring, then simply applied lots of clear. It did not look right, and kind of anemic.