n700jl
Well Known Member
I have a friend who has an RV-9 with a GDU-370 that is wired per the 700+page wiring manual to an SL-40. However, The GDU will not send any frequencies to the SL-40 stand by Comm. The 2 boxes are connected because I get a green check mark on the G3X setup COMM page. The SL-40 does not have any settings that can be changed. Anyone else having this problem? Thanks!!Its wired from P370 pins14-44-30 to SL30 pins 5-3-4. Why else would these 2 units be wired together except for the frequency exchange? Thank you!
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