"I using the HobbyKing HK-T4A transmitter with HK-TR6A receiver too. Here's my configurations: channel4 to input1 , channel3 to servo (put it backwards, it took me hour to figure that one out.), channel2 to input 2.
"I'm having similar problems with the servo as well. It only spins in one direction and isn't responsive to changes in altitude. The only time it moves is on start up and when I practically tilt it upside down. Does the same with different servos. Do…"