450 Dx9 450l throttle issue

Mda1701d

Member
Hello all,
Just wanted to post up an issue I had this morning that cost me an hour, and how it was resolved, hopefully to help someone else!
This week I have purchased a dx9 as it was a really good price. Nice upgrade from the dx6i I have been using. Copied the settings from the dx6i for my 3 birds, the nano, the dominator and the pro clone. I went for the nano first, binding no problem, and works fine. The dominator however, was more problematic. Once binding was complete, I found the esc was beeping as if to warn of throttle on. I checked settings, all seemed ok. As I had a throttle issue, the next step was to REMOVE THE BLADES!
After some fiddling, I thought the throttle might be reversed. Sure enough, if I set high throttle and plugged in, the esc would initialise. I set the throttle to reverse, but got a spool up instead!! Always remove blades!
After reversing the throttle, and more deliberation, I found that factory eating on the dx9 has throttle travel at 100%, but if we check the graphic next to it, there is more travel. The throttle can then be lowered to 150%, once I found this, the issue was resolved. Bit confusing this one!
Hope this helps someone out, and saves some time!!
 

holtneil

Active Member
Hi Mark on my DX9 the throttle hold is -15 , did you calibrate the sticks before you set up as this will set up the ranges of the gimbals on the sticks , if you do your have to recheck all the helis as the swash may not stay level on the new settings , it a really nice transmitter your going to love it
 

Mda1701d

Member
Thanks holtneil,
This tx was a 6 month old unit from align trex model shop, I think it was already calibrated, I did mess around with the sticks etc when I first got it......
Guess I will have to check again lol!
Last heli to set up is the pro clone, still have that flying on the dx6i. Always a worry with rudder gains etc as an unknown for a start. Just got the 450s flying ok, then screw it all up with a new tx!
Thanks, mark
 

holtneil

Active Member
Hi Mark just test the way I said while in the pc monitor screen adjust gyro gain, if it moves on the screen and the led changes colour on the FBL unit your good , the 3GX on the dx9 uesd the aux2 if you use the 3gx as the receiver
 
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