X50 Tail Servo Question

[DaweMD]

Can anyone tell me what this could be, i just noticed that when the power is turned off on my B6T and I move the tail servo back and forth manually that there is a red light flashing on the B6T switch. Has anyone had this happen to them?

[DaweMD]

I have tried 2 different servos and both are doing the same with the switch off and the battery unplugged from the switch. It is only the tail servo causing this. When i move the cyclic servos everything is normal - no lights. The tail causes the red light in the B6T and well as the menue lights flash on the beast, and the receiver and satelite lights lite up as well. I have the tail servo plugged into ch 4 on the beast.

[johnbs8]

so your saying that with no battery connected you still have power???

[YBNORMAL]

I have read that digital servos will hold some juice in capacitors even after being unplugged from power. Maybe something like that is going on?

This was the justification for using two zener diodes in a step down reg for a tail servo. One steps the voltage down on the way to the servo. And the other, on a parallel circut (facing the other way) allows the voltage to drain out of the servo when power is removed.

YB

[DaweMD]

The funny thing is I switched to a Savox servo and it does not do it?

[johnbs8]

honestly i dont think its the servo even though you changed it. GL with this one im boggled

[carlos]

as you turn the servo horn the motor in the servo becomes a generator and produces power, enough to light up the red light for a breif moment.