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MX-20 interfacing GNC420W (400W/500W)

 
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recapen(at)earthlink.net
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PostPosted: Sat Jun 25, 2016 12:54 pm    Post subject: MX-20 interfacing GNC420W (400W/500W) Reply with quote
My MX20 running 5.6 software is connected to an SL30 and a GNC420W. I have a set of 5.7 software coming on loan.

The 420W recently received a software upgrade (to 5.3 / 5.0) in preparation for adding an ADS600B to my RV6A.
Before the 420W upgrade, my MX20 would display my current position while flying. Now, I only get that information if a flight plan is active. I also previously saw my SL30 VOR radial tracked when it was dialed in and active - I don't get that anymore - unless I happen to have an active flight plan leg running in the 430W.

Black screen with my plane and a red X in the middle of the screen until I hit Direct to....

Anyone else out there with this combo experiencing the same issues?
More importantly, anyone out there with this same combo where you see your position without an active leg?

I don't recall changing any settings - it worked before and it only works now after I activate a leg in the 420W.

I contacted Garmin - they said to contact the dealer that installed it to verify the installation? Since I installed it, I have already rung out the wiring and only want to verify settings. They were kinda useless in that they didn't make an effort to understand the installation at all - but then they do have a monopoly on the market.

I wrote down all of the info from the MX-20 screens so I have it for reference. I may need to do the same for the 420W for comparison.

Any assistance in config settings on a working system would be greatly appreciate...even from 430W and 500W series users.

Thanks,
Ralph Capen

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recapen(at)earthlink.net
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PostPosted: Mon Jul 04, 2016 2:56 pm    Post subject: MX-20 interfacing GNC420W (400W/500W) Reply with quote
The 5.7 software didn't fix it - anyone have a set of 5.8 software that I can borrow to test - before I rip Garmin via the FSDO!?

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