tail servo will not work

[james111]

So I have set my new tri copter up im running a kk board got all motors rotating the right way but I have no yaw from my servo its a brand new savox it works if I plug it strait into reciver but not through the board  any help welcome

[pete-c]

James

What ESCs are you using. I am not sure but I think you need at least 1 BEC on either 2 or 3 motors to power it as well as 1 on motor 1.

Regards
Pete

[amxen]

are you just trying to move it with the tx with out adding thr. the servo wont move untill the add some thr

[jimbo385]

I believe that you need to present power to outputs 2 through 8 to provide power any servos put on any of those outputs. Similar to getting the servo gimbal to work.

[dubzn1]

your first out put on the left hand side reqires all 3 wires to be present
signal - positive - negative

then the other 2 ESC';s require the same in order to power the servo

i found this recently as i only used to run the signal wire but when i changed over to the KK2 i found that all wires need to be present as the provide power for the servo

hope this helps

Ash