Originally Posted by
guadalcanal
I have a very pressing problem with my servo. Before I explain the problem, I'll try to list all the relevant equipment:
1.) 27 MHZ 3-Channel receiver, stock
2.) HobbyWing 25A Brushless ESC
3.) Newly purchased metal-geared servo
4.) A 1/18th scale HengLong Sports Truggy
That's all that I can think of that would affect the servo troubles that I am having.
A while back, the servo that came with my car broke (stripped gears). I've recently purchased a new servo with metal gears from the manufacturer of my car. When I plug it into the receiver while the power is on, the servo adjusts slightly, and I believe that it centers itself. When I turn the remote on, it moves again, ever so slightly. When I turn the steering wheel: absolutely nothing I'm really getting annoyed, frustrated, concerned, and worried.
What I have tried so far:
1.) Plugging the servo in to a different slot in the receiver.
Result: None work.
2.) Resetting the ESC.
Result: No difference
3.) Being upset.
Result: Becoming more upset
4.) Taking the servo out of the car to test it.
Result: Still no turning
5.) Wishing really hard that it would work.
Result: Nothing
The battery on my remote is fine, the battery in my car is fine, I can drive forwards and backwards with my car, the servo does turn when I turn on the car, it does not turn even out of the servo horn, and it is not making any sounds while it is not turning.
I'm getting quite worried about this, because I've spent a good deal of time and money on this car, and frankly I've had it with the stupidity and cruddiness of it all. I seem to break everything I touch, and this project makes me want to throw my car out my window. Any help would be appreciated!! I can send pictures, videos, anything you need to determine my problem. I just really need to get to the bottom of this.
Thanks for reading, please respond,
~Guad
You said you have "tested" the servo outside of the car. Was it with a servo tester or the radio gear that came with the car?
If you are able, test the servo in another car, with a known working radio system.
The steering servo has to be plugged into the slot marked "1" or "str" and esc should be in "2" or "motor/esc".
Make sure the signal wire on the servo lead is in the correct orientation when it's plugged in. It could be white/orange/or yellow and should be to the "outside" or "right" when looking down at the rx and being able to read the sticker.
My first guess, after having to deal with these internet specials first hand in the shop, is it is a bad receiver/crystal.