ORIGINAL: jonlowe

The picture below is the official Hitec service department fix for the well documented deadband issue on many Aurora 9's. I sent in my transmitter over two weeks ago, and got it back today. I had significant deadband on end of travel on left aileron, low throttle, and down elevator. The fix is the blue trim pots soldered to the stick pots shown in the picture below. The adjustments are sealed by what looks like hot glue.

The good news is the deadband is gone. The bad news is that the trim pots are not secured by anything other than their leads soldered to the pots. The main concern is the one on the aileron pot, as it moves with the stick. It is easy to move with the tip of my finger. I will likely stake it in place with some low temp hot glue.

I am somewhat surprised they didn't use fixed resistors once they determined what the value should be. The elegant fix would have been to replace the stick pots with ones within tolerance. I just hope these trim pots don't drift in value over time.