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  #11  
Old 01-14-2020, 08:17 AM
Sibirsky Sibirsky is offline
 
Join Date: Mar 2017
Location: New York City
Posts: 259
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Quote:
Originally Posted by dlloyd3 View Post
I read that all this was after sitting 2 years? If so, the Dynon backup battery is discharged. During the start your main battery voltage drops to the point the Skyview reboots. Go into the Skyview setup and check the status of your backup battery. Probably shows low voltage before the engine start. If the battery is still good it may take a couple flying hours to recharge it fully.
Hope this is the only problem.
will do , thank you !
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  #12  
Old 01-14-2020, 12:52 PM
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climberrn climberrn is offline
 
Join Date: Oct 2008
Location: Carson City, NV
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If the backup battery is charged, even intermittent power supply to Dynon should not shut it off. As said before, the backup battery only gets charged with higher voltage. My battery external charger doesn?t have voltage high enough to charge backup battery. It only charges in flight (for me).

Hope it gets resolved.
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  #13  
Old 01-14-2020, 02:54 PM
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RV7A Flyer RV7A Flyer is offline
 
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Location: US
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Forget about the backup battery (although one should be installed). The OP said it was continually rebooting *while the engine was running*, which it shouldn't be if the alternator is putting out enough juice. SV needs 10V to stay up, per Dynon. Seems that, if the wiring from Alt to Batt and all is correct, the system should be seeing way more than that, no?
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  #14  
Old 01-14-2020, 06:38 PM
Sibirsky Sibirsky is offline
 
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Location: New York City
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Quote:
Originally Posted by RV7A Flyer View Post
Forget about the backup battery (although one should be installed). The OP said it was continually rebooting *while the engine was running*, which it shouldn't be if the alternator is putting out enough juice. SV needs 10V to stay up, per Dynon. Seems that, if the wiring from Alt to Batt and all is correct, the system should be seeing way more than that, no?
That is correct , the system was shutting down and rebooting while the engine was running , the voltage and electrical system seem to be functioning Ok ,
I am starting to think it is an issue with the sky view itself .
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  #15  
Old 01-14-2020, 08:31 PM
Sibirsky Sibirsky is offline
 
Join Date: Mar 2017
Location: New York City
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Quote:
Originally Posted by RV8JD View Post
Sounds like "airguy" had a similar problem awhile back. Got an RMA and sent it back to Dynon for repair.

https://forum.flydynon.com/threads/s...68/#post-60074
This is a good find , i am experiencing the exact same thing , i will get in touch with Dynon !
Thank you
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  #16  
Old 01-29-2020, 06:44 AM
rvflyerUk rvflyerUk is offline
 
Join Date: Dec 2019
Location: UK
Posts: 13
Default Bench test

Would it save time to remove the Dynon and bench test with another fully charged battery. Next thing, what is your ammeter showing? Could you attach a seperate ammeter across the shunt to see what is drawing current?
What is the bus voltage showing? It might also be useful to disconnect the backup battery. One more thing, do you have data on the alternator, ie. what is the output at various rpm's?


The Dynon should be left on for say an hour to fully check it.
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  #17  
Old 01-29-2020, 03:03 PM
ReidVaitor ReidVaitor is offline
 
Join Date: Jun 2006
Location: SoCal
Posts: 179
Default Rebooting

make sure you have latest firmware installed
Make sure the backup battery is disconnected
Try it again-
Both were issues in previous firmwares that have since been resolved.
If it works fine reinstall battery.

Once the engine kicks in the alternator the backup battery is being charged for when voltage goes below 10v. So your symptoms aren’t battery.
However (go into SETUP) and see that battery charge isn’t going down quickly just for the fun of it. You can let it run a few minutes and it should go up or say “charging” on status

If the display reboots and you have the latest firmware- call support with diagnostic file ready to send to them.
Best of success with this
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  #18  
Old 02-26-2020, 01:11 PM
NinerBikes NinerBikes is online now
 
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Any updates on this from the OP? What was the solution?
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  #19  
Old 03-02-2020, 07:42 PM
Sibirsky Sibirsky is offline
 
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Hi there
Sorry I got busy with another issue ( radio not transmitting ) however , the sky view seems to work normally .
After reading @ReidVaitor comments , I proceeded to update the system ,
updated the nav database as well , flew about two and a half hours , everything seems to work normally , no rebooting , no glitches , no rex X's .
the only issue is an erroneous reading of the EGT on #3 which I think is a faulty probe .
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  #20  
Old 03-05-2020, 04:14 PM
Aluminum Aluminum is offline
 
Join Date: Jul 2017
Location: San Jose, CA
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Quote:
Originally Posted by NinerBikes View Post
Any updates on this from the OP? What was the solution?
I just encountered a similar problem after an extended downtime: about five seconds after engine start the Skyview EMS voltage measurement would drop below 9V and the display would shut down. This would happen every time (four tries over two days). After blaming the Odyssey, then the voltage regulator (false alarms), disconnecting reconnecting wires, pulling on the remaining hair, it turns out software update from 15.2 to 15.4 fixed it.

This is the first ever failure of my Dynon system in eight years. The upgrade to 15.2 was prompted by the need to download new transponder firmware for 2020; normally I don't touch what's not broken.

EDIT: FAKE NEWS! It was a sticking starter relay after all. Software upgrade was just a koinkidink, Skyview remains unblemished. I have a battery master switch that cuts starter power, so I was able to repeat the Odyssey stress test five times: you can't hear the runaway starter on the Jabiru...
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Last edited by Aluminum : 03-05-2020 at 09:22 PM. Reason: figured it out
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