TH9X Flight Mode Upgrade

I have the TH 9X channel transmitter, and the biggest problem I have with this remote is the most accurate way to change flight modes is by flicking one switch so whenever I want to change a flight mode I have to change flight mode 6 because flight mode 1 is always stabilize and simple mode, now this gets a bit irritating so one day someone posted a blog here of a potentiometer with 6 clicks and some variable resistors to each click on the potentiometer so you can define the PWM. I bought this for about $15 here and it was at my door in about 4 days, it was crazy. I bought the unsoldered version so I had to do some fine soldering.

Now the variable resistors has 3 legs (+) (Feedback) (-) it does not matter which way is the plus and minus. I took an old parallel cable from an old hard drive mounting and cut 6 strips from it about 10cm long and cleaned the plastic from it and soldered the two most outer wires from the bunch to the (+) and (-) and then Is soldered to all of the pins a piece of wire.

 

 

 

Once all that was done, I soldered the 4 inner wires to a number on the potentiometer, and the previous potentiometers brown wire where it said brown and the black to the black and red to the red. I then soldered the 2 most outer wires to the black and the red.

 

 

I then broke of the previous potentiometers plastic housing and drilled a bigger hole in the cover so that the new potentiometer can fit. Please note the extra smaller hole on the left hand side of the big one that I made, it is so that the new potentiometer fits snug into the hole.

 

I then fitted the nozzle thru the whole tightened it with a nut on the outside.

 

I then found a nice place to hot glue the variable resistors to the back of the cover so it is easy to come by with a screw driver because you have to adjust the variable resistors so that the signal is set to the correct PWM for the specific flight mode.

 

 

And then I started tuning the inner flight modes because the most outer two knob settings is always flight mode 1 and six and knob area 4 is also always flight mode 1. First set your aux-ch option to the following. Please note channel 5 is set to Pit trim.

 

I opened flight planner and started turning the variable resistors on each unit until the green on the dropdowns showed on the correct place.

 

 

 

An now I have 5 accurate flight modes to choose from without any hassle.

Hope it was help full and happy flying.

 

Views: 1008

Comment by Christiaan van Vollenstee on July 10, 2012 at 6:36am

Kick ass. Once the paycheck is in my bank account I will be your client :)

Comment by Hein du Plessis on November 21, 2012 at 4:10am

I've just installed it, took about an hour with careful soldering etc, but I'm having problems actually fitting the switch - there's an anchor pin sticking out, and short of drilling a hole in the tx face, I'm not sure how to mount it because it prevents the thread coming through on the other side.

Comment by Christiaan van Vollenstee on November 21, 2012 at 4:16am

Hello,

If you see my 3rd image you will see I drilled the whole a litle bit bigger en broke of the extra plastic walls to hold it, and once the thread is out you use the can screw it tight to the tx face as seen in the 4th image.

Comment by Hein du Plessis on November 21, 2012 at 4:19am

Thanks yes I've doen that - broken the "cage" of the old knob to make room for the new, but there is still a long pin that protrudes from the base of the new knob upwards into the back of the front tx cover. I'm now making a hole to accommodate, unfortunately I've broken through the front somewhat but ah well.

Comment by Hein du Plessis on November 21, 2012 at 4:21am

look at this pic http://www.xenonflashtubes.com/ebay/uni6pos-diy.jpg in the foreground side of the knob, there's a pin pointing up.

Comment by Christiaan van Vollenstee on November 21, 2012 at 4:21am

My rubber nob is not flush on my tx there is about 4 milimeter gap between it. 

Comment by Christiaan van Vollenstee on November 21, 2012 at 4:21am

O yes I drilled a small hole for that one to fit.

Comment by Christiaan van Vollenstee on November 21, 2012 at 4:25am

You can see it in the 3rd image top left corner of the cage

Comment by Hein du Plessis on November 21, 2012 at 4:50am

Thanks yeah, one should actually grind that down, then it will fit flush and the knob will too. Ah well, it's working :)

Comment by Christiaan van Vollenstee on November 21, 2012 at 4:52am

I am glad, you will se you have one dead click what you cannot change, that is normal.

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