Hello All,
I have a new JR 6102 TX and was trying to center my servo's today. It's receiver is a R700, and I have the TX set in PPM mode. All other connections are right, I have checked them at least 10 times. I have all the trims on the TX at center position. When I turn the TX and RX on, all of the servo's go to one of their travel limits instead of centering! This TX has digital trim and sub trim modes, but the manual is not really clear about whether you use them to center the servos. I suspect that the problem is something simple, because this is my first plane and radio. Any help you could give me would be greatly appreciated! You all have been great in helping me with my questions. Safe landings to all.

OK, reset your model memory and check it again. If it still does it try a different receiver to see if it is the transmitter or receiver.

I am guessing that the servos are in fact centreing when you turn the radio on but the servo horns are not in the right place.

This is only a guess as I don't know any info about your plane. But if I am right. Unscrew the little screw that holds the servo arm on. Pull the servo arm off. turn on the radio and receiver. put the horn back on. Put the screw back on and see if this helps.

Obviously this has made several assumptions. If this is not the problem, let us know if the radio is installed in a model or not yet.

Hope this helps.