911, what fuse for dash lights?

We are trying to get the dash lights all to work on a 73 Duster and the fuses don't look bad, but all lights are not working. The lights also do not look bad, what fuse controlls the lights? What other problem may we be dealing with?
have you tried turning the light switch on for the courtesy lights? this is also the dimmer switch for the dash lights. if may be off. my 73 duster has this built in to the switch. just a thought...