1982 no dash light?
 

I hit a bump and the dash lights went out. Is there a fuse someplace for them? If one bulb burnt out would they all go out? Looking for some ideas at this point.

If one bulb goes the rest stay on. You can download wiring diagrams here:

Foxed.ca - Mazda RX-7 Manuals

It sounds like if you hit a bump and they all failed that you might have blown a fuse from a rogue wire shorting out.

Thanks! That will be a big help.

I felt a thump, the dash lights died, and the car suddenly gained a few horsepower. The alternator belt went