I have existing Ray Allen trims - Rudder and Elevator connected but my trim display is not changing.
Verified +5, plus GND and signal going to Ray Allen POS3. On the signal wire (0-5v) I measure .3V to 5.03V as I operate the trim, but the indicator on the FDC does not change.
I verified the voltage signal is getting to pins 13 and 31. Rudder on 13 is set to GPIO 3 and Elevator on 31 is set to GPIO 2. I read the changes using the voltmeter as I adjust the trim setting, but but no change on the FDS trim indicator.
Any suggestions?
Thanks
Rob
804 304-6687