I have a Turnigy 9x which I’ve upgraded to ER9x through the addition of the smartieparts board.
Prior to the upgrade trim on my sky surfer was all fine.
After the upgrade however the servos are no longer at the zero setting (ie arm at right angles to the servo) when the sticks on the 9x are centred, and the range of motion of the server arms is not full range they previously were.
I think that this is probably due to the mixes being changed/added to whenever I set ER9x to be a simple 4 channel tx.
Anyhow, how do I go about correcting this – so that the plane is properly trimmed with the servos arms centred ?
Any help appreciated.