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Old 04-07-2015, 06:46 PM   #1
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Default Servo Causing issue with Receiver

So, I have a Spektrum DX4C and a Savox SC-0251

Yesterday, while wheeling on some rocks, the RC just stopped responding and the ESC started beeping like I was no longer connected to my receiver.

After doing some troubleshooting, what I discovered was, while the steering servo was plugged into the receiver, the receiver lost connection to the remote. As soon as i unplugged the servo, I regained connection and everything worked, minus the servo of course.

Besides the obvious, I need a new servo, has anyone run into this problem, and does anyone know what may have happened here?

Thanks.

Last edited by w0pgk; 04-07-2015 at 07:08 PM.
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Old 04-07-2015, 07:19 PM   #2
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Default Re: Servo Causing issue with Receiver

You don't necessarily need a new servo, but you definitely need an external BEC to run it. Savox servos are a bit more power hungry and need their own power source.
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Old 04-07-2015, 07:28 PM   #3
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Default Re: Servo Causing issue with Receiver

I am already running a Castle BEC.

And this has been doing find for weeks and died on me mid run.
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Old 04-07-2015, 11:50 PM   #4
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Default Re: Servo Causing issue with Receiver

Quote:
Originally Posted by w0pgk View Post
I am already running a Castle BEC.

And this has been doing find for weeks and died on me mid run.
How is your external bec ran?

Also what battery?
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Old 04-07-2015, 11:56 PM   #5
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Default Re: Servo Causing issue with Receiver

RX's weren't designed to handle heavy loads from crawler servos. Wire the + from the bec directly to the servo. Wire the - to the servo and rx.
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Old 04-08-2015, 03:58 AM   #6
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Default Re: Servo Causing issue with Receiver

I just had a servo winch do the same thing to me. When it was plugged in the receiver wouldn't power on like a safe mode or something. As soon as I removed the winch everything worked fine. That was with the srs4210 receiver.

I tried it with a different truck which has a sr410 receiver and as soon as the receiver got power the servo would glitch and start spinning and I had no throttle. Once removed everything went back to normal.

I believe my servo winch got water damage and the pot went bad.

In your case I would start from scratch, set all Trims to zero and rebind the radio/receiver together. Once that's done try plugging in the servo
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Old 04-09-2015, 06:42 PM   #7
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Default Re: Servo Causing issue with Receiver

I ended up just replacing the servo. I may try to warranty the old one since it is only a month old. Still not 100% sure why it would have failed.
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Old 04-11-2015, 05:52 PM   #8
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Default Re: Servo Causing issue with Receiver

I would recommend one of these. Makes it easy and you don't have to worry about running too much power threw the receiver.

Holmes Hobbies LLC
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