SV-D1000 power pins 1 & 20

[Joe48041]

Are pins 1 & 20 on the SV-D1000 connected internally?  The reason that I ask is that the RV-12 kit comes pre-wired with pin 20 always hot and pin 1 switched.  See the RV-12 schematic http://tinyurl.com/RV-12-Schematic and my post on VansAirforce questioning the wiring. http://tinyurl.com/VansAirforce-Post
Joe Gores

 

[Dynon]

They are connected together internally, and from a quick look at the schematic they should be going to the same place in the Van's box too. So what you're seeing doesn't quite make sense on the surface, but you'll want to check with Vans on the details of how that circuit is supposed to work. I think that is ultimately switched by the avionics switch, but both of those pins should be getting power together. The primary reason there's two power lines is to split the current load between two DSUB pins.

 

[Joe48041]

Dynon, Thanks for the reply.
I conclude that the Skyview in the RV-12 is not wired per Dynon's installation manual. Or if it is wired correctly, then the RV-12 wiring diagram is wrong.
Joe Gores

 

[Bill_H]

In the RV12, Skyview is supposed to come on with the master, not "wait for" the avionics switch.

The Skyview comes on and it powers the GPS, EMS and the ADAHRS without the avionics switch on.

Tha Avionics switch powers up the transponder and radio and ADSB box if you have that.
The avionics switch also allows power to the AP servos if you throw that switch as well.

BTW, all those need to be ON with you do a Dynon System Software update (not just the monthly FAA databases) because software is or may be actually loaded into the ADAHRS, EMS, ADSB, GPS, Transponder, and AP servo modules.

 

[Dynon]

Thanks for the correction on the avionics vs master switch. We're checking in with Vans to make sure we understand the nuances of the RV-12's harnessing to get you the best-possible answer.

 

[Dynon]

When Van's introduced the dual screen option, they modified the power harness to split the power wires so that the main display would turn on with the master and the second display comes on with the avionics switch. This allows a customer to shed the load of the second screen by turning off the avionics switch. On a SkyView you could also do this by turning off the screen as well.

We prefer that most customers have the dual power connections wired to the same switched power source, but Dynon and Vans have evaluated the specific case of the RV-12 with the Vans control panel and electrical system, and it is a safe and functional SkyView install in that case.