davefres

I have the gtn 750. I fly towards an airport with gps at the altitude of the faf. I hit the apr button and it lites along with "nav" and the "alt" in yellow. On the pfd I get the ->gs lite. I open the map and when I go past the glide scope the "alt" and the "->gs" buttons unlite and I fly past the glide scope. I have the gps -- vor#1 engaged as per instruction on site. The gtn 750 works in other planes I have. The default barron the PA44 and others. Thanks Dave Wilson