I HAVE THE ADEMCO VISTA-10P/10PSIA USER GUIDE AND NOT SURE WHICH SYSTEM IS INSTALLED HOWEVER, I EXPERIENCED A "LIGHTING HIT" RECENTLY AND LOST ONE OF MY "ZONES" THAT CONTROLS (2) ENTRY DOORS...IF I BYPASS THIS ZONE EVERYTHING WORKS PROPERLY ALSO IF I DO NOT BYPASS THIS ZONE THE SYSTEM INDICATES "NOT READY! HOW SHOULD I PROCEED WITH "TROUBLESHOOTING"?