Weird KX 165/GI-106A problem

[PT20J]

Wonder if anyone has seen this: #2 Nav/Com is a KX 165 connected to a GI-106A and nothing else. LOC and GS needles/flags work fine on ILS. On VOR when pulling Nav inner knob to RAD, it reads correct radial. When turning OBS to that course or radial, sometimes CDI centers with proper TO/FROM indication, but sometimes CDI remains at full scale deflection and KX 165 RAD display shows - - -. Even if CDI centers when OBS turned to proper radial, it will peg full scale when flying slightly off course. Sometimes, it appears that TO/FROM are reversed from proper sensing and CDI will not center when rotating OBS - needle just goes from full scale left to full scale right  

Talked to Bevan and they weren’t sure if it’s the 165 or the 106A. Talked to Midcontinent (who made the 106A for Garmin and is a Bendix King service center) and they think it’s the resolver in the 106A. I’m trying to borrow a KX 165 to swap. 

Anyone have any thoughts?

Skip

[Baker Avionics]

4 hours ago, PT20J said:

Wonder if anyone has seen this: #2 Nav/Com is a KX 165 connected to a GI-106A and nothing else. LOC and GS needles/flags work fine on ILS. On VOR when pulling Nav inner knob to RAD, it reads correct radial. When turning OBS to that course or radial, sometimes CDI centers with proper TO/FROM indication, but sometimes CDI remains at full scale deflection and KX 165 RAD display shows - - -. Even if CDI centers when OBS turned to proper radial, it will peg full scale when flying slightly off course. Sometimes, it appears that TO/FROM are reversed from proper sensing and CDI will not center when rotating OBS - needle just goes from full scale left to full scale right  

Talked to Bevan and they weren’t sure if it’s the 165 or the 106A. Talked to Midcontinent (who made the 106A for Garmin and is a Bendix King service center) and they think it’s the resolver in the 106A. I’m trying to borrow a KX 165 to swap. 

Anyone have any thoughts?

Skip

Where are you located? I have a 106A I will ship for troubleshooting

[PT20J]

11 hours ago, Baker Avionics said:

Where are you located? I have a 106A I will ship for troubleshooting

I'm in the Seattle area. That would be great as I'm not having a lot of luck finding a 106A or KX 165 locally. I'll send you a PM.

[PT20J]

It’s fixed now. Turned out to be a bad pin on the KX165 connector from the GI106A resolver. 
Skip