D-10A

[grosssm]

I have a D-10A wired to SL-30 via RS232. The CDI property deflects when on final and slightly off course.  However, I cannot get the CDI pointer set to the LOC course.  

The D-10A user manual p.6-5 says: When in ILS mode, the SL-30 disables the OBS knob, and thus you must use the soft keys below the HSI in order to set the course.  

Should I have a menu item in the NAVSRC menu of the D-10A that provides for setting the course?  My NAVSRC menu only provides a heading bug function.  I cannot find soft key indicators for setting course.   I am using firmware 5.1.1    Do you have any suggestions on how to resolve my problem?

I have tried to select VOR on the SL-30 using the <--> button and then set the LOC/ILS course.  While in VOR, The CDI pointer on the HSI moves to the selected course as advertised.  Then I press <--> to select localizer and the CDI pointer moves off the course that was selected in VOR by 30 degress.  Should this technique work?  If so, any suggestions on how to use the technique successfully?  

 

[dynonsupport]

You should have a NAVSRC menu item when you're tuned to an ILS/LOC frequency (you may need to exit, pull up the HSI menu for it to appear). I'm not sure if we had a subdle bug that we may have fixed between 5.1.1 and 5.4. The release notes don't indicate it, and I'm not seeing any bugs in our internal system. But just to be sure, get to the current firmware version first.

Other than that, make sure the indicator head type is set to NONE, not serial, on the SL30. It's a counterintuitive setting, but that's what it needs to be set to for all Dynon connections. Not sure if this could be causing your issue though.

Finally, check a different ILS frequency to see if it's maybe a frequency scheme bug.

 

[grosssm]

OK.  You have given me several tasks and alternatives.   I will work throught them and get back to you.  Thanx.  sg

 

[6rv]

I just updated to the latest software and am having the same issue that the OP noted. My setup is an SL-30, Mid Continent nav head and D-10A that replaced a vacuum DG. The D-10A defaults to the EHSI screen.

Prior to the update, I was running software version 4.0 or 4.2 and the D-10A would sync to the OBS on the Mid Continent. This was for VOR and LOC frequencies. Yesterday, I flew approaches, the same ILSs that I flew under software 4.0 or 4.2, and the D-10A no longer syncs to the Mid Continent OBS for LOC frequencies. The only change to my installation was the update to version 5.4.

Is there anything that I could do to sync the D-10A to the Mid Continent OBS for LOC frequencies?

Thanks.

 

[dynonsupport]

It may be that one of the changes that fixed some other bugs in the SL30 operation in the 4.X versions broke a behavior that you were liking. If that's the case, there won't be a way to get that functionality back. Fundamentally, the Dynon HSI is pulling the OBS setting off of the SL30. One prerequisite for this to work correctly is for the "indicator head type" to be set to none? Is it? Also, what happens when you press the OBS button on the SL30 and the slew the radials that way?

 

[Harkfly]

I have just installed the 10A and still learning. I have a 10A and D120 without a Hs34. My SL30 and GNC300XL work great in the HSI. The SL 30 head type is set to NONE. However when tuned to a localizer the CDI goes to 360 and there are no soft keys to change the setting. The manual indicates there should be. Please help

 

[jakej]

Harkfly

Operators manual rev J page 6-5 last sentence in 2nd last para refers

There is a 'soft' key (2nd from right, I think) for this when on HSI page - you'll find it  

Jake J

 

[Harkfly]

Thanks Jake. All I have is a heading bug (second from right soft key) nothing for the course pointer when in ILS/LOC mode. I have version 5.4 installed and the manual page 6-5 says I should have soft keys but there is nothing there other than heading bug.

The unit recognizes that it is tuned to a localizer because the course point goes to 360 but can not be changed from that point on. Very disorienting if you were in actual IFR conditions.

Thanks again. Hope to hear from Dynon

 

[dynonsupport]

We think there might be a bug there, and are currently looking into it.

 

[dynonsupport]

We just checked a 5.4 unit, and this works as expected, and no bugs were found.

In order to show the course button, the SL-30 must be reporting that it's in LOC mode. You can tell that it is because the label in the upper left reports "LOC" instead of "VOR."

Just being tuned to a LOC frequency doesn't appear to be enough to get the SL-30 to report a localizer, it needs to have a valid localizer signal.

If you are still having this issue when the localizer is not flagged, and you have a valid signal, then we have a bug, but we haven't been able to reproduce it yet. Let us know!

 

[jakej]

DS

A customer had this exact same situation ie the CDI @ 360 (no HS34) - I did get the OBS to work on the ground without a valid Lo/ILS signal, not sure how but I think I pressed the OBS button on the SL30, or something like that, as well.  He has 5.4 too.

Harkfly - the answer is there, unfortunately I'm unable to help more real soon however I'll be at the customers plane in the next 3 weeks (he is 4 hrs from here) and can give you a 'blow by blow' description on how to use the OBS function in Loc mode then, if you can wait ?  

I guess most people use a HS34 so that's probablywhy no one else has replied.

Jake J

 

[Harkfly]

Thank you Dynon for the quick reply and testing. It will be a week or so before I can test it out. Will let you know how it turns out

Thanks again Jake

 

[Harkfly]

Dynon Support-- Tested this today and works as advertised. Noted that as configured the 10A will not go to LOC mode until it is getting the valid LOC signal. Once received the course buttons appear.
Thanks again for the great product.