whell:
if one servo heated up not connected (where all the servo same brand-type??)

the problem may just be that the RX (TX in second time..) is giving an incorrect signal to the servo, and he try to go in some impossible position..
what john say is absolutly perfect, and the last source of error is pratically the signal wire from RX to servo..


the output electronics of chanel 5 may be just broken..or giving something wrong...