I have a Flysky FS-GT3C which I use for my RC cars.
The navigation menu on the TX is controlled through a rotary wheel.
The issue is, it become so sensitive that I am not able to make any selections.
Below video explains the issue.



Is there any way I can fix it myself? 
Replace the potentiometer?
Or re purpose any other trim buttons on the TX?

Thanks.

The first thing I would suggest is to take it apart (carefully - watch out for flying springs!!) and see what that wheel actually controls. It could be a potentiometer, it could be a rotary switch (which presses internal button on each "notch" of the thumbwheel), or there could be some other more complicated mechanism that is causing the issue. Once you know what that wheel operates and how, you can then decide the best course of action to try and repair or replace whatever is causing the problem.

(26-Jul-2019, 10:45 AM)SnowLeopardFPV Wrote: The first thing I would suggest is to take it apart (carefully - watch out for flying springs!!) and see what that wheel actually controls. It could be a potentiometer, it could be a rotary switch (which presses internal button on each "notch" of the thumbwheel), or there could be some other more complicated mechanism that is causing the issue. Once you know what that wheel operates and how, you can then decide the best course of action to try and repair or replace whatever is causing the problem.

I took it apart.
Attached pictures of the electronics device where the external rotary wheel is going to.

               

Issue resolved.
Applied some wd40 on the potentiometer.