Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Radio Equipment => Topic started by: Ginger64 on March 11, 2016, 09:15:33 pm

Title: Servo prob.
Post by: Ginger64 on March 11, 2016, 09:15:33 pm

Just up graded my boat from 6v to 7.2v.  Now I have a servo inside boat which has stopped working. Is it possible the 7.2 volt battery is too high for the servo and blown it.

Title: Re: Servo prob.
Post by: radiojoe on March 11, 2016, 09:51:07 pm

It would depend on the where the Rx power supply comes from, it should be either be a 5volt BEC from the ESC or a separate Rx battery up to 6volt, so the servo should never get 7.2 volt.

Title: Re: Servo prob.
Post by: Ginger64 on March 11, 2016, 10:07:11 pm

Servo is plugged in receiver. But like I said it has now a 7.2 battery to it via esc. Just might be coincidence that it's stopped working. Is it possible to wire it direct to a battery to test if it works. This would rule out receiver problem.  If it has one.

Title: Re: Servo prob.
Post by: radiojoe on March 11, 2016, 10:16:05 pm

The lead from the ESC is the BEC and is only 5 volts regardless of the voltage of the main battery, it sounds like a faulty servo.

Title: Re: Servo prob.
Post by: Ginger64 on March 11, 2016, 10:35:55 pm

Thanks very much for your help radio joe .

Title: Re: Servo prob.
Post by: malcolmfrary on March 12, 2016, 10:30:06 am

Apart from fitting it into a known working installation, the only way to test a servo is to plug it into a servo tester.  About 2 quid from fleabay.  Powering it just applies power, to check its working it needs a pulsed signal on the third wire.