IFD 440 Strange Behavior

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   I had two IFD440's installed in my Cirrus last week.  The lower left knob,
when pressed, should toggle the active and standby COM fields to the active and standby NAV fields.  This works with 440 #1 ONLY when USER 1 is selected on the AUX page.  If USER 2, 3, 4 or 5 is selected the only thing that happens when you press the Com/Nav knob is the cyan colored box around the Standby Com field toggles on and off.
440 #2 behaves the same, except it works correctly for USER 1 or 2, but not USER 3, 4, or 5.  To my knowledge, USERs 3, 4, and 5 are still factory defaulted on both units.  I could not find any combination of user settings that would change the way the units behaved.

The unit will load and activate the proper frequency and track it perfectly when flying an ILS, but there is no way to manually see or tune the NAV frequency  The installer has apparently not received a solution from Tech Support yet.

Any ideas?

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zman520 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 10 Oct 2014 Location: Greer, SC Status: Offline Points: 23	Post Options Post Reply Quote zman520 Report Post Thanks(0) Quote Reply Topic: IFD 440 Strange Behavior Posted: 08 Sep 2015 at 8:27pm
	I had two IFD440's installed in my Cirrus last week. The lower left knob, when pressed, should toggle the active and standby COM fields to the active and standby NAV fields. This works with 440 #1 ONLY when USER 1 is selected on the AUX page. If USER 2, 3, 4 or 5 is selected the only thing that happens when you press the Com/Nav knob is the cyan colored box around the Standby Com field toggles on and off. 440 #2 behaves the same, except it works correctly for USER 1 or 2, but not USER 3, 4, or 5. To my knowledge, USERs 3, 4, and 5 are still factory defaulted on both units. I could not find any combination of user settings that would change the way the units behaved. The unit will load and activate the proper frequency and track it perfectly when flying an ILS, but there is no way to manually see or tune the NAV frequency The installer has apparently not received a solution from Tech Support yet. Any ideas?

AviJake Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 26 Mar 2009 Location: Lincoln MA Status: Offline Points: 2815	Post Options Post Reply Quote AviJake Report Post Thanks(0) Quote Reply Posted: 08 Sep 2015 at 8:29pm
	Whoa, that is weird. We'll check it out in the lab in the morning and re-post here.
	Steve Jacobson sjacobson@avidyne.com

zman520 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 10 Oct 2014 Location: Greer, SC Status: Offline Points: 23	Post Options Post Reply Quote zman520 Report Post Thanks(0) Quote Reply Posted: 08 Sep 2015 at 8:42pm
	I just realized, the simulator does the exact same thing.

AviJake Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 26 Mar 2009 Location: Lincoln MA Status: Offline Points: 2815	Post Options Post Reply Quote AviJake Report Post Thanks(0) Quote Reply Posted: 09 Sep 2015 at 7:55pm
	Found and fixed today. It will be part of Release 10.1.1.0. If this does happen to anyone prior to loading 10.1.1.0, you can do the following to clear it: The 1st time you select Datablock Setup for a given user profile, the cursor starts at the position reserved for the COM/NAV datablocks. Once you move off that position, you can never go back (which is correct). But until you move off, you can wreck havoc with your datablocks until you select Factory Defaults. So one workaround is after an initial load of software release 10.1.0.0, you should select each User Profile and select the Factory Default on the Datablock Setup Page by pressing and holding the bottom right knob for a few potatoes then confirming the dialog box. Let me know if you need a better corrective action description.
	Steve Jacobson sjacobson@avidyne.com