Garmin 400 Series GPS Hookup to OBS Resolver - Help Needed

Papa Pilot

Pre-Flight
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Aug 3, 2017
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Andy
I am replacing my GX50 with a 400W. Currently the GX50 is wired to an ARC IN-525B indicator and it works great and see no need to replace it.

The 400 Series install manual does not have an interconnect diagram to the IN-525B. From what I understand, though, any non-converter style indicator can be used to send OBS info to the 400W . The IN-525B is a non-converter style indicator.

Issue I am having is figuring out the OBS resolver interconnect between 400W and the IN-525.

Here is interconnect mappings I have thus far. What I need help with is how 400W OBS D, E, F & G outputs are connected to the IN-525B. (I think C & H are mapped correctly.)

upload_2022-10-7_10-32-30.png






 
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