Ok, So I got my unit back from Garmin yesterday. They replaced the NAV/COMM board, which fixed the error described below. Now none of the knobs are functional! I still can't change frequencies, change GPS way points, or even change the volume of a radio. The softkeys appear to work, but the knobs don't.
How can an FAA Authorized Repair station release a radio, stating that it's able to be returned to service via 14 CFR 43.9, and still have this type of issue? Talk about really bad quality control!
And I still had to pay the shipping charge to ship it back to them for further repair! And, according to the Garmin dealer I've used in the past, exactly the same issues happened in 2009 when this radio was sent back TWICE for the same repairs....
Time to call their customer service number and complain....
Quote:
Originally Posted by Fred.Stucklen
Hi all,
I flew my RV-7A from Florida to CT today. A six hour flight with one stop. Five hours into the trip, the GNS-480 screen warned of "Loss of communications to COMM" and "Loss of communications to VOR". After this notification, I was unable to tune any COMM of VOR frequencies.
Shortly after that I started to get strange navigational signal to the GRT EFIS. The EFIS was navigating by the GPS, but it changed to navigating by the GNS-480 VOR radial (which I was unable to change). This rendered the GNS-480 compleetly useless...
I switched the EFIS GPS source over to the secondary ADS-B GPS and started navigating with the internal GRT EFIS flight planner.
Powering OFF the GNS-480 for over 30 minutes, then powering it ON again, did not fix the issue...
This unit has been operating flawlessly for almost 1400 Hrs.... I'm planning on pulling it out of the plane tomorrow and see if I can fix the issue myself... I'm not looking forward to spending what Garmin wants to fix it....
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