Upgrade to D-10A issues

[Ratman]

I'm in the process of upgrading an RV-8 from a D-10 to a D-10A. I've installed the D-10A, AP74, EDC D-10A, and Servos. I'm having some problems working out the kinks. By the way the D-10A was just upgraded by Dynon and I'm sure it was tested before it was shipped. For the most part, the entire system is brand new from Dynon.

First and foremost I have the shimmy issue that has been mentioned before. Second, no matter how many times we go through the calibration routine, the compass refuses to cooperate. It seems to go through the routine but in flight it wonders all over the place.

When we arm the autopilot it will fly heading and track modes but it tries to fly the heading bug which of course is wondering all over the place with the compass. The altitude hold is rock solid.

The next issue is the GPS connection to the D-10A, it's connected to pin 22 and is talking. The HSI page is working and shows the expected info but I can't get the CDI to show up.  Also, the "NAV" button on the AP74 will not light up or engage when pressed.

Any ideas or advice?

 

[dynonsupport]

The shimmy is a known 5.1 issue on a small percentage of our units. You can either backdate to 5.0, get the 5.2 beta, or wait for 5.2 to release in about a week. While you have this issue, magnetic cals won't work so don't spend too much time. Of course the AP won't be able to fly a bad compass well.

If you are using a Garmin X96 as your GPS you need to go into the advanced communication setup menu and change from fast to normal output rate. If not, what GPS is this?