I was setting up dual servos on the ailerons of a 4 star 40. I plugged a Y connector into a Berg reciever then I plugged brand new Futaba
3004 servos into the Y using extensions. I turned on the transmitter and plugged the battery in the receiver. Nothing happened when I moved the aileron sticks. I pulled the servos and tested them on a servo tester. Still nothing. I thought perhaps bad servos. I had two more new 3004 servos so I tried them first on the tester, then seperatly on the reciever. They worked as intended. Then I plugged the servos back into the Y and plugged everything back in. I then moved the aileron stick again and still nothing. I pulled the servos again and tried them on the tester. Nothing. Then I replaced the Y connector and leads and installed some servos that I had on the bench and the ailerons worked fine. There must have been a short in either the leads or Y connector, Since I paid 8 bucks for the Y connector and leads, I cut the cords on them and threw them away. (I understand this was a knee jerk reaction, but I didn't have a receipt and I doubt the place I purchased the seros and wires from would have replaced the servos and and I was not in a happy frame of mind ) I have had a shorted servo before, and it looked like a capacitor had burned where the leads come into the servo. Is it possible to replace the capacitor (or whatever the component is) and have working servos again. And if I could repair the servo myself, would it be trustworthy assuming I did the repair correctly. I would send them in to get repaired but I'm sure the cost of repair is equal or more than the servo cost new.- posted
16 years ago