By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by CML

Turnigy Trust 70a something weird

All Topics | Latest Posts

Search for:  in Thread Title in  
Cliff 195908/03/2018 20:08:20
avatar
204 forum posts
49 photos

I picked up a new Turnigy Trust 70a SBEC in a job lot and discovered something weird.

**LINK**

With it all connected up as soon as I move the controls my MZ24 tranny detects a low receiver voltage, it's showing 3v, as soon as I stop moving the sticks the voltage goes back up to 15.something.

The servos move slowly.

I tried a different esc and everything is normal, so I reckon the problem is in the esc?

Any ideas before I junk it?

Denis Watkins08/03/2018 20:24:18
2717 forum posts
137 photos

Check for a stalled servo Cliff

Cliff 195908/03/2018 20:32:35
avatar
204 forum posts
49 photos
Posted by Denis Watkins on 08/03/2018 20:24:18:

Check for a stalled servo Cliff

Denis I pulled all the servos one at a time eventually leaving just one plugged in, didn't seem to make any difference.

But with all the servos reconnected and a different esc I could wiggle all the servos and no problems?

onetenor08/03/2018 20:33:41
1635 forum posts

A stalled servo would show the same on the other esc. I would look for duff /dry joints somewhere . Connect up and wiggle the wires .

onetenor08/03/2018 20:33:41
1635 forum posts

A stalled servo would show the same on the other esc. I would look for duff /dry joints somewhere . Connect up and wiggle the wires .

Cliff 195908/03/2018 20:54:10
avatar
204 forum posts
49 photos

Yes, wiggled all the cables and wires as well, as soon as the Trust esc went in the servos slowed and the low voltage reappears! Would there be any internal settings I could try and change in the esc?

Biggles' Elder Brother - Moderator08/03/2018 22:22:49
avatar
Moderator
15203 forum posts
1407 photos

Hi Cliff,

you say you bought it "in a job lot" - so can I assume its not new? This is a programmable ESC and could a previous owner have set up something silly - like NMH batterries etc?

I'd reprogramme the device to everythning you want, (even if its already set make doubly sure). If it doesn't behave after that I'd be tempted to bin it before it damages something!

BEB

PS You can find the programming manual under the "Upload File" tab on the page you linked to.

Edited By Biggles' Elder Brother - Moderator on 08/03/2018 22:26:31

Cliff 195909/03/2018 15:52:37
avatar
204 forum posts
49 photos

I've reprogrammed it and tried in three different planes, same symptoms, it's now binned, thanks for all your ideas.

Incidentally I thought it was new but when I removed the insulation to desolder the connectors it was obviously not new, there being as much solder on the outside of the connectors as inside lol.

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of RCM&E? Use our magazine locator link to find your nearest stockist!

Find RCM&E! 

Email News - Join our newsletter

Love Model Aircraft? Sign up to our emails for the latest news and special offers!

Latest Forum Posts
Support Our Partners
CML
Gliders Distribution
Airtek Hobbies
Overlander
Wings & Wheels 2018
Slec
Expo Tools 14 July
electricwingman 2017
Sarik
Advertise With Us
Latest "For Sale" Ads
What is the main brand of transmitter you use? (2018)
Q: What is the main brand of transmitter you use?

 FrSky
 Futaba
 Graupner
 HiTec
 Jeti
 JR
 Multiplex
 Spektrum
 Other

Latest Reviews
Digital Back Issues

RCM&E Digital Back Issues

Contact us

Contact us