Still no Steering. SOLVED

[JKMotorsports]

Starting tofeel like a menice but GT3B, Dual No Name ESC, CYS S0150 Servos.

Everything works except for both front and rear steer. I connected my front servo to another RC and TX/RX and it worked.

They worked at one point when I was just finishing things off with a 3ch RX. Did I fry something in the ESC's? Do I a BEC (or 2 with the 4ws?)?

[srt6]

alot of no name esc's don't have an internal bec, thats probely the case here

[SMR 510RR]

Maybe this will help...
GT3 no enter or trim buttons?

[JKMotorsports]

the have a built in 6v bec and they did work up until 2 days ago.

[Charlie-III]

Originally Posted by srt6

A lot of no name ESC's don't have an internal BEC, that's probably the case here

Huh??

I can honestly say I haven't seen a non-BEC ESC in a decade or 2 or close to 3. If you know of a single one, please let me know! My 1st BEC ESC was early 80's (Novak), as far as I know, pretty much any ESC from the late 80's onward have an internal BEC. While they may suck for high draw crawler servos (over ~200inoz), they are fine for a RX.

[Charlie-III]

Originally Posted by JKMotorsports

They have a built in 6v BEC and they did work up until 2 days ago.

Did you try & measure a voltage out of the ESC BEC (with the ESC powered up)??
Are you sure you plugged the servos in correctly?? (dark wire.....brown or black....towards the outer edge of the RX).

[SMR 510RR]

Originally Posted by Charlie-III

Huh??

I can honestly say I haven't seen a non-BEC ESC in a decade or 2 or close to 3. If you know of a single one, please let me know! My 1st BEC ESC was early 80's (Novak), as far as I know, pretty much any ESC from the late 80's onward have an internal BEC. While they may suck for high draw crawler servos (over ~200inoz), they are fine for a RX.

Castle MMP 1 cell...

Castle Creations | One Cell Mamba Max Pro 1/10th Scale ESC

The issue seems radio related, do you have throttle control? What if you plug the servo into the throttle channel? Does it work then?

[Charlie-III]

Originally Posted by SMR 510RR

Castle MMP 1 cell...

Castle Creations | One Cell Mamba Max Pro 1/10th Scale ESC

OK, I "sit corrected".....

I would bet the circuit is there, just turned off.

Regardless....yes, I now have a spec that shows a "non-existant" internal BEC. Sigh.



Thanks SMR.


[Stupid in my mind....but I'm a field/service guy....NOT a sales guy......]

[SMR 510RR]

Originally Posted by Charlie-III

I would bet the circuit is there, just turned off.

Nope wrong again, says in the link

"These controllers will have their BEC circuit disabled - removed actually - so you will need an outboard 4.8 - 6.0 volt power source to run your electronics. We recommend a CC BEC with a small 2s LiPo or a separate 4/5 cell NiMH receiver pack."

[Charlie-III]

Originally Posted by SMR 510RR

Nope wrong again, says in the link

"These controllers will have their BEC circuit disabled - removed actually - so you will need an outboard 4.8 - 6.0 volt power source to run your electronics. We recommend a CC BEC with a small 2s LiPo or a separate 4/5 cell NiMH receiver pack."

Sigh.......

Bang head......

[JKMotorsports]

Originally Posted by SMR 510RR

Castle MMP 1 cell...

Castle Creations | One Cell Mamba Max Pro 1/10th Scale ESC

The issue seems radio related, do you have throttle control? What if you plug the servo into the throttle channel? Does it work then?

I do have full motor control and dig function from the rx and radio. i have not tried connecting them to a esc channel. I'll try that latter but if the bec in the esc is toast (that would mean i fried two because of the dual esc?). I'll also toss it in my truck tonight and test the output voltage will some good equipment at work tomorrow.

Sucks as i wanted it running the upcoming weekend and no online shop can get a bec to me by then and no lhs within a one hour radius.

[Charlie-III]

Sooo....you're running dual ESC's....did you have both red ESC to RX wires connected??
You should only have ONE red wire feeding the RX (either from an ESC or an external BEC).
If running dual ESC's, it's best to remove one red ESC to RX wire from the connector & tape it up.

[SMR 510RR]

Originally Posted by JKMotorsports

I do have full motor control and dig function from the rx and radio. i have not tried connecting them to a esc channel. I'll try that latter but if the bec in the esc is toast (that would mean i fried two because of the dual esc?). I'll also toss it in my truck tonight and test the output voltage will some good equipment at work tomorrow.

Sucks as i wanted it running the upcoming weekend and no online shop can get a bec to me by then and no lhs within a one hour radius.

If your motors are working then your BEC isnt the problem since the RX is getting power from somewhere...Im not saying that they will be able to run your servos to their potential but the steering should work. A BEC is a solid investment, I recommend wiring it directly to both servos and letting the internal BEC run the RX.

You sure you have the servos plugged in correctly? They arent backwards? They arent in the wrong slot?

It sounds like you are running dual ESC's and 4ws...Have you tried using a fresh model to see if you got your programming for the servo wrong?

You just need to keep crossing possible causes of the list until you find the one thing that is not correct. No one here is going to be able to just tell you what it is, all of these problems are specific to your exact setup so without the truck in front of us its hard to figure out.

So far we know:

• The servos work with a different radio
• The receiver has power and should pass it on to the servos (when you turn it on do the servos buz, get stiff or move at all?)
• Signal is getting to the receiver from the transmitter because you have control of the throttle

Keep adding to that list until you find the problem.

[losikid]

Is your servo plugged in backwards? Black wire to the outside

[JKMotorsports]

Well last thing to try is different servos as I get nothing plugging them into the rear esc channel.

Yes they are plugged in right.Checked, double checked andeven tried it the other way.

I will be getting a bec, just no lhs so I either got to go into the city or order online. How many amp should I go for?

[Charlie-III]

Originally Posted by JKMotorsports

Well last thing to try is different servos as I get nothing plugging them into the rear esc channel.

Yes they are plugged in right. Checked, double checked and even tried it the other way.

I will be getting a bec, just no lhs so I either got to go into the city or order online. How many amp should I go for?

It really sounds like you have an issue with either the RX (for steering channels) or TX set-up (programming is incorrect for steering).

Most of us use the Castle Creations 10A BEC. I wire it direct to the servo, others (and CC in their directions) run it through the RX.

[JKMotorsports]

Well if it was an RX issue withthe steering channels would the servo not function when plugged into a motor ch?

Also it did the same thing when I was rear steer delete and using a 3ch reciever. It literally worked one day and not the next. I was hoping it was my old RX but it was not.

I have reloaded radio firmware and went through losikids step by step setup and nothing. Plus CH1 should be steering by default and it doesn't work also.

[Charlie-III]

Originally Posted by JKMotorsports

Well if it was an RX issue with the steering channels would the servo not function when plugged into a motor ch?

Also it did the same thing when I was rear steer delete and using a 3ch reciever. It literally worked one day and not the next. I was hoping it was my old RX but it was not.

I have reloaded radio firmware and went through losikids step by step setup and nothing. Plus CH1 should be steering by default and it doesn't work also.

In post 1, you stated the servo worked in a different rig with a different radio, thus I believe that rules out the servo being an issue.
Maybe I missed something?
Plugging the servo into the RX and trying to "steer" using the throttle on the TX should make it work (since you say the ESC's work).

[JKMotorsports]

Right. It does. I'm starting to loose track of what I've done.

[SMR 510RR]

Originally Posted by JKMotorsports

Well last thing to try is different servos as I get nothing plugging them into the rear esc channel.

Yes they are plugged in right.Checked, double checked andeven tried it the other way.

I will be getting a bec, just no lhs so I either got to go into the city or order online. How many amp should I go for?

Originally Posted by JKMotorsports

Right. It does. I'm starting to loose track of what I've done.

So they did work or didnt work when plugged into the throttle channels?