Welcome to the forum and irv2, Ted.
Here is a
Brochure and
Owners Guide, updated to 2001, for you assuming you have a gas coach.
Ford Chassis Forum.
Below in my signature you will find links to many more for your Newmar.
Switch questions---map lights have a switch on base of lamp ---both lights are put on by the headlight switch by turning all the way to left, something like to old dome light control in your car.
Bathroom switch one in center maybe for you water pump, if you put it on go to your display area and the green light for pump will display, could also be the overhead fan and there is also a switch on the fan that needs to be on.
Switch's in bedroom is for each over head speaker to shut off and they work from the fader control of your dash radio.
Enjoy the forums.