just opened the case and the signal board has hrs and ppm one the same wire on one connection.
Now i'm no electronics whiz so wondered if this is still convertable?
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Just had another look, please let me know if i might be getting warm with this. on the main board in the 3GR, I have a black terminal marked "gnd" (ground/negative?) then a red one marked "vcc" (positive?) then a yellow one marked "sig" (signal).
Presuming I select "ppm" mode on the tranny, and teh frsky was hooked up to these terminals on the main board, could it work?
Getting desparate now as I'm fed up of Core units failing on me and I drive a Durango, so suffer with space lol, and dont have the luxury of being able to blow hundreds on new fancy gear.