Why doesn't my AXP340 power on automatically?

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   The Pilot's Guide for the AXP340 on page 4 says, "The AXP340 will automatically power on when avionics power is
applied and will display the Avidyne logo, product identification
and software version information while the unit is self-testing."
Mine has to be manual powered on. Is there a setting I can change - I don't see anything in the book on this?

Edited by LANCE - 25 Feb 2017 at 11:11am

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LANCE Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 06 Dec 2014 Location: TEXAS Status: Offline Points: 277	Post Options Post Reply Quote LANCE Report Post Thanks(0) Quote Reply Topic: Why doesn't my AXP340 power on automatically? Posted: 20 Feb 2017 at 5:51pm
	The Pilot's Guide for the AXP340 on page 4 says, "The AXP340 will automatically power on when avionics power is applied and will display the Avidyne logo, product identification and software version information while the unit is self-testing." Mine has to be manual powered on. Is there a setting I can change - I don't see anything in the book on this? Edited by LANCE - 25 Feb 2017 at 11:11am

Gring Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 30 Dec 2011 Location: Kingston, NY Status: Offline Points: 739	Post Options Post Reply Quote Gring Report Post Thanks(0) Quote Reply Posted: 20 Feb 2017 at 7:05pm
	There is some wiring that will turn it on when the avionics bus is powered. Check the installation.

LANCE Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 06 Dec 2014 Location: TEXAS Status: Offline Points: 277	Post Options Post Reply Quote LANCE Report Post Thanks(0) Quote Reply Posted: 20 Feb 2017 at 7:28pm
	I should have mentioned that it did power up automatically when it first was installed, but now doesn't

psimpson Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 23 Oct 2015 Location: Hays KS Status: Offline Points: 72	Post Options Post Reply Quote psimpson Report Post Thanks(0) Quote Reply Posted: 21 Feb 2017 at 10:32pm
	My first one acted that way, they had to replace it. It's fine now

LANCE Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 06 Dec 2014 Location: TEXAS Status: Offline Points: 277	Post Options Post Reply Quote LANCE Report Post Thanks(0) Quote Reply Posted: 24 Feb 2017 at 6:34pm
	I was at the avionics shop today for another reason and told them about it. They called Avidyne and Avidyne said it may need to be exchanged but told the tech that if it gets shut off manually it needs to be turned back on manually. He fiddled with it and there's nothing in the settings, but now at least it comes back on automatically. We'll see if it stays that way.

LANCE Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 06 Dec 2014 Location: TEXAS Status: Offline Points: 277	Post Options Post Reply Quote LANCE Report Post Thanks(0) Quote Reply Posted: 22 Mar 2017 at 12:40am
	Well, it didn't stay that way. Now it needs to be turned on again manually every time I start up the airplane.

M20J Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 15 Nov 2015 Location: CZBA Status: Offline Points: 32	Post Options Post Reply Quote M20J Report Post Thanks(0) Quote Reply Posted: 23 Mar 2017 at 2:08pm
	Mine also did that, I had it exchanged and the replacement works correctly. Get it replaced.

psimpson Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 23 Oct 2015 Location: Hays KS Status: Offline Points: 72	Post Options Post Reply Quote psimpson Report Post Thanks(0) Quote Reply Posted: 23 Mar 2017 at 6:37pm
	Mine did the same thing, once I got another one it has been fine since.

LANCE Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 06 Dec 2014 Location: TEXAS Status: Offline Points: 277	Post Options Post Reply Quote LANCE Report Post Thanks(0) Quote Reply Posted: 21 Jul 2017 at 5:31pm
	I brought my airplane in to have the heading source tied into the IFD550 so I can get the Total Velocity Vector. I talked to support weeks in advance about my transponder not powering up with the Master. They agreed it needs to be swapped out. I let my avionics dealer know. They were supposed to have a swap for my on July 17 when I took it in. The dealer dropped the ball and forgot - Avidyne to the rescue - they overnighted one and it was put in before I even knew about it. Once again, great Avidyne service!!