Originally Posted by
akiyama77
OK I'm trying to sort out an issue with my radio KO ex 10/spektrum mod and rec. I noticed a few weeks ago at the track, some occasional what I'll call lagging, a slow responce to radio input, and loose its trim. This would happen maybe 2 times in a qualifier. I checked battery voltage, connections, antenna lead, and found nothing. The next 2 weekends the symptom gets worse, now it will randomally turn the steering servo about 1/2 way and return to normal position, as I was carrying the buggy to the pit wall, I saw it do this, and on the back straight, at full throttle, it turned straght into the haybales and into another buggy, I've rebinded, and no change. I just got a new spektrum mod and rec. fresh battery, bind, and as the buggy is sitting on the box, you can heard the throttle servo chatter, some call this the servo finding home position. I have 2 Hitec 7955tg's in the buggy, if you put your hand on the servo horn, you can feel the horn move very little, maybe 1 mm. I've change out throttle servo, and the same, even when the buggy is on the ground, you can hear the servo, I'm not sure where to go from here, anybody have any ideas?
I'm assuming that you are using the EX-10 Helios and no the EX-10 Eurus?
Try performing the function Adjust VR to start with. If you can't finish this function then you will have to send in your Tx for service as the pot (steering or throttle) may be bad.
If you can finish this function and still have problems, then it's hard to say if it is the servos or your spektrum brand system. Check the pins on the transmitter where the module plugs into. Make sure that they are not lose (move) or damaged. If they are then you will have to send the Tx in for service.
If everything checks out ok, then pull the receiver and the rest of the electronics out of the car and see if you get the same problem. I would start from there and change out one thing at a time.
If you pull the electronics out of the car and there is no problem, then you might have the servo lead wires or battery wires crossing over your Rx antenna and canceling out the signal. In this case, re-route your wires so they do not cross over the antenna wire for the Rx.
-Robert