plaese help Im at alost wont start again

Its me again 1994 holiday rambler. I took it out this weekend and as we packed up to go home I started the rv and then wrapped every think up go to take off and notice the shift pad was not lit up. but the rv was running. I turned off the rv and tried to re-start but it would not start. so I thought it was the key switch because as I played with it the panel would go on and off. put the new switch in still wont start and to lights on the shift pad. checked fuse and grounds can find anything. can anyone help please.