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Old Nov 28, 2009, 06:32 PM
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chattering eflight servos

I just put some eflight S75 sub micros in mini futana with AR6200 Spektrum reciever.
They chatter badly like they can't find center after you move a control.
I plugged a standard Futaba servo in to the reciever and it works normaly.
Is there a problem with these eflight servos?
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Old Nov 28, 2009, 06:56 PM
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USA, TX, Grapevine
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Are you using a ESC's BEC to power everything in the plane? The cheaper servos draw more power than a better brand servo does. It may be that when you go to run the servos, they draw too much power, become starved for current, and set off a chain reaction causing the receiver and the other servos to go all flaky on you.

Try temporarily connecting a separate battery pack to the receiver and temporarily disconnect the red power wire on the ESC's throttle cable, and see what happens.
If it works OK, then you likely are near exceeding the ESC's ability to provide power for your radio system in that situation.
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Old Nov 28, 2009, 08:14 PM
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thanks

I will that a try. that sounds like it might be likley.
This is my first eletric so I have things to learn.
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Old Nov 28, 2009, 09:13 PM
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Canada, BC, Vancouver
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Quote:
Originally Posted by grabber View Post
I just put some eflight S75 sub micros in mini futana with AR6200 Spektrum reciever.
They chatter badly like they can't find center after you move a control.
I plugged a standard Futaba servo in to the reciever and it works normaly.
Is there a problem with these eflight servos?
Are they the regular S-75 or the newer S-75 digital?
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Old Nov 29, 2009, 03:01 PM
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Quote:
Originally Posted by coriolan View Post
Are they the regular S-75 or the newer S-75 digital?
they are the regular S-75 servos
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