hi, i just bought a nib but 'used' Cirrus MRX
-4 II receiver in 4 sale section on here, also ... at hobby peoples, i have ESC plugged into ch3 ,servos
in ch1 & 2, when plug in battery servos
"jump" for a second,rx getting power, and thats it, ..... am i missing something here? lipo pack charged good, TX ...