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Old 09-28-2008 | 12:16 PM
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D420mac
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From: Arnold, MD
Default JR 9303 RX921 problems!!!

When I turn on my transmitter and then plug in my Reciever on my heli the Reciever lights will light showing a lock but the 401 gyro will flash rapidly and then flash slowly._._._._ . When I turn off power to my reciever and then turn it on my gyro will flash rapidly and then lock but my reciever will not lock, it will contine to flash. If I first power on my reciever with the transmitter on and it locks but my gyro doesn't and then if I move my cyclic fully to one side and release it my servos will begin twitching my reciever will power off and come back on the servos stop twitching, but the reciever will be flashing and the gyro will be locked. I have no idea what the heck is going on does anyone have any suggestions? I have had this problem awhile I normally just cycle power and fly. Today on the bench I just happened to hit the cyclic stick and I saw the servos twitch, I want to stay grounded until I can get this resolved I'm also contacting JR but would appreciate any help. Also sometimes while flying I'll lose Gyro lock I have no idea why, I usually continue flying. This heli has never been crashed all of the electronics are new? Maybe this below step by step will help explain the issues better.

TX on
RX on RX locked
GY blinks rapidly then slowly blinking never locks

TX still on
Cycle power RX off and then on RX blinks on all three led's continues blinking never locks
GY blinks rapidly then locked

TX still on Hold cyclic stick to full right and then release Servo's twitch, rudder included
RX blinks turns off by itself no lights 1 sec and then continues blinking again
GY blinks rapidly when RX turns back on locked.

I'm supplying 5.8V to the RX through a seperate Castle Creations BEC, I have a voltage regulator between my gyro and rudder servo Futaba S9254.

Thanks Dan