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Electronics => Electronics => Topic started by: BANE on May 22, 2008, 07:00:12 PM

Title: identifing old airplane servo
Post by: BANE on May 22, 2008, 07:00:12 PM

Hello,
       I have an old airplane servo that has (SERVO 80111 Cox/sanwa). I've tried controlling them using my analog servo controller, but no luck.  My guess is that there digital.  I've tried looking it up but no luck ether.

Bane

Title: Re: identifing old airplane servo
Post by: airman00 on May 22, 2008, 07:15:24 PM

post a pic of it and put like a can of soda next to it so we can be able to determine scale dimensions

Title: Re: identifing old airplane servo
Post by: BANE on May 23, 2008, 05:17:15 AM

hope you can see these :P

Sorry, could't find a coke anywere, but got a 9v bat. :'(

Bane

Title: Re: identifing old airplane servo
Post by: airman00 on May 23, 2008, 05:48:12 AM

mmm

that servo uses a different connector than Hitec

http://www.fatlion.com/sailplanes/servos.html

you'll have to flip some of the wires
(http://www.fatlion.com/sailplanes/images/airtronicsconnector.gif)

flip the wires and then try it out, my guess is that they are analog

Title: Re: identifing old airplane servo
Post by: BANE on May 23, 2008, 10:50:53 AM

thats probably explains why it got hot when i first connected it :o.  Ok, so i can just switch around the wires like a standard one.  Just out of curiosity, are the frequencies the same?  I'm at school right now and won't be able to check them out until 7:00 ish.   
Bane

Title: Re: identifing old airplane servo
Post by: paulstreats on May 23, 2008, 03:55:40 PM

The frequencies should be the same but there are occasional surprise servos that catch you out.

Quote

My guess is that there digital.

Digital servos still take the same signals as analog servo's. Its just the internal electronics and motor driving that is digital

Title: Re: identifing old airplane servo
Post by: BANE on May 23, 2008, 05:01:26 PM

Yeap, they work now.  Thanks guys.  (comferm) they are analog and they work great. :D  However, i did fry the first one :'(.  Again, thanks

bane

Title: Re: identifing old airplane servo
Post by: airman00 on May 26, 2008, 08:32:57 AM

If you fried it , you can still use the geared motor inside it!

Title: Re: identifing old airplane servo
Post by: TrickyNekro on May 26, 2008, 11:22:41 AM

Quote from: BANE on May 23, 2008, 05:01:26 PM

Yeap, they work now.  Thanks guys.  (comferm) they are analog and they work great. :D  However, i did fry the first one :'(.  Again, thanks

bane

Try replacing the caps... these ICs aren't easily burned trust me...