Quick grounding of + wire changing starter, now no power to engine panel

[Captain Scott]

Dumb I know, should have turned off the main switch. But now it acts like main engine switch is off when on. No power showing at board. 2002 Leopard 47 with 4JH3E Yanmars. Popped 3amp fuse at board was replaced. Tried jumping around switch but still no go. Does have old school changing isolators if that matters. I am very thin on my electrical knowledge. Any ideas appreciated. Thanks

[sailormed]

Look up the wiring diagram. Usually there is a 200 Amp (or other high value) fuse close to the battery (within a couple of inches). Mostly hidden because of the proximity to the + pole of the battery. This fuse is probably blown as well.

[Captain Scott]

Don't see that. The grounding was quick and sparks minimal, not a big "crack!"
But I can still jump start the engine at the starter.