Configuration help with GNC 355, gnc255, dual g5

[Vikingguy]

Hello everyone, 

I’m hoping my link will be visible, and maybe someone here will have the same set up in their plane. So my ia and myself together have installed dual G5’s, gnc255, and a gnc355 in my plane. The plane has no auto pilot, so we are putting both navigators on the dual g5s. So far so good, until configuration. We are having trouble getting the G5’s to display any signal from the 355 and 255. We re-checked our wiring, followed garmin’s wiring schematic how a 355 should be wired exactly. the stc installation manual didn’t give entirely clear indication on how to wire up the second navigator in their manual with this exact combo, but it was somewhat self explanatory after looking at a few different diagrams including the experimental manual. We ended up only sending a pair of Arinc429 wires from the gnc255 to the gad29b. Pin 24&23 from the 255 to pin 22&10 on the gad29. We are now trying to configure and having some trouble. Did anyone here have a snag on this part or any tips? Are we missing something? We are trying the different configurations and not having much luck. Here’s a vid of what it’s doing.

https://streamable.com/yjnyd0

 

Edited March 30 by Vikingguy
Adding pics

[LANCECASPER]

@PT20J Paging Skip!!

[PT20J]

I can't be of much help since I don't have any experience with that configuration.

You might post on BeechTalk as there are a number of very knowledgeable contributors there (especially Terry Markovich) that have a lot of experience with Garmin equipment. You could also try Garmin Field Service Engineering - I believe their number is 888-606-5482. Also, since the G5 is designed by the Team-X experimental avionics group, you might try calling experimental support at 866-854-8433.

Good luck 

Skip

[Vikingguy]

I did post there too. I’ll try to get hold of terry. Garmin was closed yesterday for the holiday so just trying to see what can be done over the weekend. Thanks for your input!