• Welcome to RCTalk! 🚀

    Join the #1 RC community where hobbyists connect, share, and get expert advice on RC cars, trucks, boats, drones, and more!

    • Friendly & passionate RC enthusiasts
    • RC tips & troubleshooting
    • Buy, sell & trade RC gear
    • Share builds & upgrades

Servo Problem

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.

Tiny74

RC Newbie
Messages
5
Reaction score
0
Points
0
Location
Englewood
RC Driving Style
I am having a problem with getting my servo box I can not get a response from my servos I replaced the batteries I just can not get it to work.
 
I have had the truck for about two years I took it all apart and put it back together about two weeks ago ran it the other night and everything worked fine then the other day I went to run it and could not get the servo to respond to the control at all. Stock Tx and Rx not sure what you are asking let me know what you mean so I can give you more information. Thank you for the help.
 
Needed to know if this was the Radio and receiver that came with it, or had you changed something.
It's possible that the crystal in the receiver is causing the problem since nothing is responding.

First make sure your batts are new. You might have left it on accidently, and now they're dead. Check ALL your connections. run your switch on and off to see if you get a twitch. Long term storage can do strange things to connections. You might also have some corrosion in the battery holder from sitting for 2 years. If all of these check out, swap out the crystals and see if that takes care of it. If you don't have extras, you're LHS will be willing to check them for you, since they will be selling you the new ones.
 
Ok I will check the crystal that is the only thing I think it could be right now I replaced the batteries and there was no corrosion and I checked all the connections they seem to be fine. Thanks again for your help I will let you know it that was the problem or not.
 
So I replaced the Crystals and that was not the problem I guess I am narrowing it down to the receiver or the radio I don't think it would be the actual servos since it is like both of them are not working unless if one goes out they both don't work. Let me know thanks.
 
Well, you haven't lost anything. It's always good to have a spare set of crystals on a different channel, just in case someone else is on your frequency. That way you can swap them out and still run with him.
The next step would be to try a new receiver on the frequency of your radio. If a friend has the same setup, you can put your crystal in his Rx and see if the servos move.
Again, the LHS can help you check your setup to determine what you'll need.
If you KNOW that all your contacts, wires and switches are fine, and it wasn't the crystal, the receiver is next in line.
There's no need to buy a new receiver unless it solves the problem. If that's not it, the transmitter is next, but it's kind of unlikely.
Also, if you know someone with the same transmitter, then match the crystal to the one in your truck and test it. That way you'll know the problem is the Radio.

By the way, what kind of truck is this, and what is the brand of the Radio and Rx?
 
It is a HPI Savage 25 I like the truck runs great but I had it do this once before and it started working again. It is just this time nothing I do works it is stock TX and RX.
 
this is a long shot, but i figure i throw it out there. check the antenna wire itself. look for any cuts or niks. if they are fine, look at the servo wires. the sav 25 box is horribly small and they can easily get pinched or cut. that happened to me a couple years back.

i'n not sure you anwered this or not, but when u turn on the truck itself, do the servo's twitch at all?
 
Back
Top