Spektrum TX/RX Troubles
(Park Ridge, IL)
I am having some issues with the electric RC plane I built. It's a House of Balsa T6 Texan (44" wing span). After the plane sat for a couple years, I decided to power it up to check it out. I am using a Spektrum DX6i with an AR500 receiver, 22 amp ESC, and 3-cell battery. Here is what happened:
1) The throttle was inconsistent. At steady stick, the RPM changes significantly.
2) I was also hearing an occasional knock during acceleration and deceleration. I still don't know what the sound is.
3) After 15 minutes or so, the throttle went to 100% on its own. Unfortunately, the prop was attached and ended up striking the receiver antenna. This, in turn, damaged the prop and motor mount.
After removing the prop and repairing the motor mount, I powered everything up to check it out.
4) Powered up the transmitter, then powered up the receiver. The elevator servo goes to full travel and stays stuck in that position (with some chattering). Moving the elevator gimbal barely moves the elevator from the stuck position.
I switched the elevator and rudder servo connections at the receiver. The rudder then goes to full travel and sticks. The elevator servo seems to respond in the rudder connector. It seems that whatever servo I connect to the Elev connector of the receiver, gets stuck at full travel and does not respond to input from the transmitter.
So, am I having a problem with the TX, RX, or both? Any assistance is GREATLY appreciated.