Hello all,
I thought that I'd drop off these real-life manuals of the Garmin GNS 430 that the "NS 430" is modelled after. It goes without saying that there will likely be discrepancies between these manuals and the NS 430 module. I don't own the NS 430 module, so I can't detail what those specific differences are. Even so, these manuals ought to provide some reasonable insight.
I have included the "Quick Start" manual and the full "Pilot's manual".
Happy reading! Garmin 400 Pilots guide.pdf Garmin 400 Quick reference.pdf