Align 450 Sport

[Mrmani]

Struggling Newbie in need of some help please, I have a Spektrum dx6i and align GP780 Gyro with DS420 rudder servo
I appear to have lost the rudder control, gyro has the rudder hard over to one side and she just spins out.
Moving the rudder control has no effect on it, Trying to follow the gyro set up programming and all appears to be in order though I can't change any of the settings, as you need to use the rudder control to do so
How can I check if the rudder control signal command is reaching the gyro / servo ?
Any help or advice appreciated
MrMani

[Scotvar]

Have you got any sub trim on your transmitter with regards to the rudder? If so you'll have to rebind your rx with the sub trim in otherwise the gyro takes this as rudder commands and will put the rudder over in one direction. I hope this helps!

Paul

[pDidd]

IF this is happening when you are spooling up the heli it sounds to me like the tail servo needs reversed. i.e. when the gyro senses movement it tries to counter it but justs adds more travel in the wrong direction. My dx6i has the rudder and the aileron servos reversed.

[Mrmani]

Seems the tail rudder servo is bad. Took it down to skyline models and tried another servo, which responded to control
They recommended a larger servo, model DS520 instead of original DS420, and I am trying to fit this today, having problems to mount and adjust it as it quite a bit larger and the servo horn hits the tail boom, very difficult to get the servo horn neutral position at 90 degrees with the tail blades in the centre position, has anyone fitted this unit on a 450 sport?
Mrmani

[amh]

I have one fitted to my 450 sport although I am sure I did not fit with the standard tail boom mounted servo holder, so I had to order the 450 v2 version as the mount is larger with an extra hole also:

Metal tail servo mount for T-rex 450 SE V2 sport blk | eBay UK

Part No. HT2002CF Metal Tail Servo Mount 450SE UK Stock | eBay UK

For getting it centred use the Finless 450 pro setup videos
http://video.helifreak.com/?subpath=...=tailservo.wmv

My Step by Step 450 Sport Super Combo Build... - HeliFreak

Trex 450 Pro build videos - HeliFreak

[Mrmani]

Horizon Hobby UK

I had returned my DX6i for inspection / quote on a few small issues where it would sometimes fail to bind up with my receiver, it also had a sticky scroll switch which would often not respond to being pressed.
it was serviced and repaired within two days and returned free of charge, they have replaced the aerial and updated the software and replaced the dodgy scroll switch
I am so very pleased and I have to complement their excellent service and customer support

Garry