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JR and Spektrum Radios and Electronics JR and Spektrum Radios, Gyros, Servos, Etc.


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Old 06-19-2014, 12:08 AM   #1 (permalink)
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Default AR200BX with JR DS3517MG and Futaba S9257 issue

Started to set my latest Protos 500 up and ran into a problem.
I created (copied) another Protos profile onto my DX8. This profile works great so everything works as it should.
This time I am getting some unusual stuff on my Throttle and Rudder settings during the AR7200 set up.
First, the swash goes DOWN when I INCREASE the throttle ( like the Blade 450X). Obviously I could reverse the Throttle in the DX8 but it is WARNING me and asking me if that is what I REALLY want to do. So I am not sure that this is the correct solution. Has this something to do with the way JR servo's work perhaps?? I am not familiar with JR servos hence that question.Looking at the MONITOR page. When I move the throttle stick. the Throttle triangle / picture does NOT change at all but the swash is physically moving down and up ( like reverse from what it should).
Secondly, the actual rudder servo does not move ( so not tail movement) when I move the rudder stick but again in the Monitor page, the Triangle depicting the rudder moves as is should
Also, in the AR87200 setup when I want to select and check the tail movement and compensation the tail does not compensate at all. Like the servo is dead but the servo worked yesterday.

I am thinking their is a problem with the TX / AR settings somewhere but I can NOT FIGURE OUT WHERE TO START LOOKING..

Any input as to what this might be?
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Old 06-19-2014, 01:17 AM   #2 (permalink)
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Read Step I in the setup again.This is where you get everything moving in the correct directions.
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Old 06-19-2014, 07:42 AM   #3 (permalink)
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JR servos typically work in the opposite direction to most other servos. So you'll need to correct your setup, thats the danger of just copying models.
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Old 06-19-2014, 10:03 AM   #4 (permalink)
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Quote:
Originally Posted by kevinww View Post
JR servos typically work in the opposite direction to most other servos. So you'll need to correct your setup, thats the danger of just copying models.
So that could include resetting the throttle because min is max at the moment and vice versa...?? Although I copied a profile I go through each and every item. Same with AR7200BX of course.
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Old 06-19-2014, 10:03 AM   #5 (permalink)
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Originally Posted by aerocal View Post
Read Step I in the setup again.This is where you get everything moving in the correct directions.
I did .. trust me . hence the questions
First, the swash goes DOWN when I INCREASE the throttle ( like the Blade 450X). Obviously I could reverse the Throttle in the DX8 but it is WARNING me and asking me if that is what I REALLY want to do. So I am not sure that this is the correct solution. Has this something to do with the way JR servo's work perhaps?? I am not familiar with JR servos hence that question.Looking at the MONITOR page.
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Old 06-19-2014, 11:18 PM   #6 (permalink)
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Default Issues solved

Did you know that you may have to reverse the Pitch in the TX to make sure the swash moves in the right direction? Yep. That was one of the issues.
And.. here is the big one.. my rudder servo stopped responding ( I had been swapping and switching around servo connections in trying to get the swash to work correctly. The plug of the Futaba Tail servo was inserted the wrong way. I looked at another Futaba servo and noticed that the white lead was at the top of the plug when inserted in the AB7200BX.... I pulled that sucker out and reinserted in the right way et voila! Everything worked INCLUDING the tail servo direction and compensation!. Simple mistake taking HOURS to find because trying to find the problem get's you away from the real issue sometimes. Sunday = Maiden Day but I did have a little spool up already.. Going well
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