weird glithing on 1.9 wraith

[idk]

setup

sv1 1.28 firmware

solar 772

cc bec stock havent got the link to it yet

rx bypass from CF

dx3e

skylipo 3s 20c

venom 35t

airtronics servo in the rear not sure of model but its around 150-200oz at 6v

the solar772 is plugged to the bypass along with the bec, the bec i solder at the battery side of the esc.rear servo is running of the esc. the problem is when its all plugged up the rear cause major glitches, when the rear is unplugged the all i get it rev and twitchy forward. tx has to be set to reverese throttle or it wont calibrate. that was this morning now when i plug in just the front servo leave the rear out i cant move. esc comes on nothing gets warm front servo acts fine when rear in unplugged but im getting no throttle response or very little. could this be my motor? esc? everything looks to be fine no broken or damaged wires. im lost

[Charlie-III]

1-Your rear servo may have an issue causing the glitch.
2-Yes, Futaba radios need the throttle channel reversed.
3-To calibrate, make sure:
--Throttle trim to "0"
--Throttle EPA's to 100%
4-Yes, you may have a motor issue, check the brushes to see if you still have some brush length left as well as that the brushes move freely in the brush hood.

[scottanthony]

XXXXXX2............!
You need better servos that will run 7.4V and crank up the voltage too

[idk]

Yes know a better servo is needed but ive ran this servo before in this same setup no problems. I'm going to throw my tekin 35t in and see if that helps. Just wanted my moneys worth out ta the venom lol. So can the sv1 not handle a single servo on 3s? Would a cheap bec it fix the glitch? And I don't have futuba gear all spektrum here

Sent from my Galaxy Nexus using Tapatalk 2

[idk]

ok swapped motors and thats solved. but as i did this i plugged the rear servo back up but still had the steering locked out but as i tested the motor i cycled through the the 3pos switch while driving and no glitches at all.? put the horn back on and the glitched was back. so i guess im left with 2 options as i see it.

1. another bec for the rear servo. my funds for this are none :( but a cheap bec is doable.

2. run the 772 of a 800-1000mah 2s lipo and run the rear to the bec.


im kinda stuck due to job loss but still wanna 4ws? i also have a vp dig unit would this setup likely cause the same glitch? it only seems to do it under load. but idk im guessing on limited knowledge.i did check my lipo are balanced. im temped to just run the 772 @7.2 but dont wanna fry it.