What do the different fuses supply power to in a 1992 B2200 Mazda truck?

To be honest a haynes manual has a complete diagram of the electrical system and does show the fuse box.I am not exactly sure what you are wanting to know or correct if that is the case.I would go to your local auto zone,advance auto parts and purchase this manual for around 20.00-25.00 if they do not have it in stock they can order it and have in two to three days or less.I strongly suggest buying this it cover everything on the truck and it literally pays for itself and NO more online can you show,help, do you have how to questions.Seriously BUY it you will not be wasting your money and stop asking the how too's when you have this very handy manual!