Taranis QX7 M7 Hall Gimbal Issue & Fix

Sorry for the poor quality video & images, making a youtube video was an after-thought as I was originally just posting @ rcgroups.com but thought it may help more here.

If you have noticed Yaw drift when raising throttle only it may be just a broken cable. It is a really easy issue to fix with just a tiny bit of soldering.

This is a Taranis QX7 which I upgraded to the M7 Hall effect gimbals just under 2 years ago when I first got this radio. I recently noticed when setting up a LarvaX I received a few weeks back that as I raise the throttle to a certain range from -60 up to -31 (1150 to 1330 on a receiver in betaflight) my yaw starts to increases from 0 right up to 100 and yaw axis will not respond while the throttle is in this range. It must have gone unnoticed for a while as this range is typically below even the hover point of most of my quads, but I later noticed some odd twitching which I thought was just a quad issue. Turns out it was my Gimbals

After taking off the back of the transmitter (just 4 screws and lifts right off) I checked continuity with the pins to the sensor and found the green wire had an intermittent connection. I had originally intended to replace all the wires as I found the same ones from an R-XSR harness will fit the connector and I have loads spare from de-pinning ones I don't need.

However after removing the sensor which is simple to do, just remove the retention bracket, and the glue and it will come right out, I could clearly see a kink in all the wires which was likely where the green one broke. Even with trimming the wires there is still more than enough slack and the wires now seem to flex over a larger length of the wire which could prevent future kinking.
You can also remove the sensors mount by removing the other 2 screws above it, but this is not necessary, you will still have to remove the sensor itself as the solder is on the other side of the sensor facing downwards.


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