Hi, I recently bought a Predator UAV RQ-1L (V-Tail) model from ebay (think its china made) when I connected up everything the V-tail cannot work as it should be, (Ailevon?) I tried the TX servo switches and also change the RX servo channel did`nt work either.

Does anybody have the same model or run into the same problem ? I need your suggestion

is it a SAPAC  model

hi,
check all the outputs of your receiver using a servo, if the servo moves normally at every channel then there is no problem with your receiver. The v tail mixing module could be faulty. send me a pm if the above method fails and I may be able to help.

Yes, The model is from SAPAC all servos move normally except cannot function as V tail