Sandel 3308 help

[Davidv]

I know it’s very old tech but hoping there is a 3308 expert out there somewhere.  I just got a new GNX-375 installed along with the 2.3 firmware for the Sandel to allow for LPV approaches.  I’ve done a few test flights and my vertical guidance doesn’t appear on the right side where it should when on the GS.  I previously received this guidance when doing an ILS but that doesn’t seem to work either.  I just picked up the plane on Friday so my shop is working on it and we plan on calling Sandel today.  

However, like a lot of avionics shops they aren’t experts with Sandel.  I’m pretty sure it’s a configuration issue in the settings as it previously worked fine.  Has anyone had a similar issue when upgrading or connecting a new GPS?  I’ve attached a  pic below of what it looks like on the LPV. 

I tried rotating the image but it still appears sideways...

[Becca]

you want it to be in HSI mode to use the GS.   youre in map mode enroute. 

 

Edited July 15, 2019 by Becca

[Davidv]

Thanks Becca, I tried toggling between them both and HSI mode looked the same except without the orange line.

[Alex G.]

Press the button for several times until you see the dots. Also rotate the left knob to align it with the current heading. It should auto rotate but sometimes when switching from GPS to ILS too fast it doesn't auto slew. 

[Davidv]

Thanks Alex, I did some troubleshooting over the phone with Sandel and it turns out some of the settings were wrong (including the one on page 17 I believe that says “ILS OFF”.  Now I’m chasing another issue in that it is above 20-30 degrees off course with VOR guidance but seems to be accurate on the ILS.  Planning on calling Sandel on Monday.