GPS Annunciator Control Unit question

[hangar_101]

I just landed using an ILS approach and the approach button worked just fine. I have the GTN750 installed. Which avionics you have installed?

[davidcrum]

I have the GTN 750 as primary and the GTN 650 as secondary

[davidcrum]

This post is deleted!

[davidcrum]

Here is what I am doing----I load up my flight, take off, get up and going, engage the AP, get up to desired altitude, fly to the final waypoint, get lined up, switch AP to NAV (I use either the KFC 150 button or the GPS annunciator), then I press GPS Apr mode on the GPS annunciator, which does not work. So, I use the KFC 150 which shows APR on the display, but not on the GPS annunicator. I then land.

[davidcrum]

Thought it might be something in the Community folder, took everything out except for the AC, same result.

[hangar_101]

Would you be able to provide a video demonstrating the scenario you described?

Here a short video showing an approach using the TDS GTN750

https://www.youtube.com/watch?v=vDtpuySg15E

[davidcrum]

Yes I can provide a short video.

However, in the YT video, was the approach button pressed on the KFC 150? If so, that is exactly what is happening with me. I did not see the GPS annunicator light up (as the manual says it should)

[davidcrum]

Here is the short video. I tried to time it to start at the turn at JA (going to KJAX runway 8), the landing is not good at all but it does show what I am describing

https://youtu.be/0yeTq3t_Pao

[ploodovic]

@davidcrum A video is so useful!

From the manual:

The relevant part: “The GPS/APR button is used specifically for arming the KLN-90B’s approach mode.”

[davidcrum]

Ahhhh, NOT the one I am using. Thanks!!!!