921 receiver questions
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921 receiver questions
I have the new 2.4 X9303 with the 921 rec. and have a couple questions.
First, with the transmitter on, when I switch the power on the rec, the servos jump, ailerons and rudder go right for about 1/2 second, and sometimes the flaps drop then come back up. One time the motors started!. It does it whether I plug in a 4.8v pack or run it off the ESC's. Is this normal? My failsafe is set to all controls to neutral except throttle.
Second, does it or can it do any harm to plug in four ESC's BEC's into the 921? I have a four motor aircraft using four ESC's and four 3s lipos and all four Y down into the throttle. I have not seen any problem with this, it works fine, but figured I should probably ask.
Thanks!
First, with the transmitter on, when I switch the power on the rec, the servos jump, ailerons and rudder go right for about 1/2 second, and sometimes the flaps drop then come back up. One time the motors started!. It does it whether I plug in a 4.8v pack or run it off the ESC's. Is this normal? My failsafe is set to all controls to neutral except throttle.
Second, does it or can it do any harm to plug in four ESC's BEC's into the 921? I have a four motor aircraft using four ESC's and four 3s lipos and all four Y down into the throttle. I have not seen any problem with this, it works fine, but figured I should probably ask.
Thanks!
#2
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RE: 921 receiver questions
After you get your plane all set up then you need to rebind the receiver with all your controls in the position you want them for fail safe,
ie throttle off all other controls in neutral position.
ie throttle off all other controls in neutral position.
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RE: 921 receiver questions
I gave it a flight - after a satisfactory range and F/S check - and it worked fine.
thanks for your help
thanks for your help
#4
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RE: 921 receiver questions
I tried re-binding but it didn't solve the servo movement at power on. Still the same. The two lights on the 921 & on the satellite flicker at power on before turning solid. It is during that time that the servos move.
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RE: 921 receiver questions
Hmmmmm I had a similar problem (have had my x9303 about 3 months) on power up my ailerons would go down, both of them they would work but in that down position.
so I put the bind plug in the bind port of the receiver all the controls were neutral throttle all the way down and trim up to an idle position, turned on the receiver all the
receiver lights started blinking. Then while holding the bind button in on the xmiter I turned it on.
Waited till the lights went solid then everything was OK.
Good luck
so I put the bind plug in the bind port of the receiver all the controls were neutral throttle all the way down and trim up to an idle position, turned on the receiver all the
receiver lights started blinking. Then while holding the bind button in on the xmiter I turned it on.
Waited till the lights went solid then everything was OK.
Good luck
#6
RE: 921 receiver questions
If the servos are moving somewhere other than their bind position on power up, that is a function of the servo, not the radio system. Some servos when powered up move uncommanded.
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RE: 921 receiver questions
Boy do I feel dumb. I guess I never really noticed that but I checked my other aircraft and they all move (except some digitals) at start up too.
Thanks Danny
Thanks Danny