I've got three HS 422 servos here that I just burnt, I hooked the power line up to -5 insted of +5. So as soon as I turned on the controller I got a bunch of smoke...

I hooked one back up, properly, it still runs but it has a constant jitter, it does respond to commands but also throws in a random movement every couple of seconds.

comparing to the one good servo I have left, everything looks normal on the circuit board, except the part labled CN70, right beside where the wires come in, on the side facing you when you open the case.

just wondering if anyone knows what that component is or where I could find a datasheet for it or the board, or any other info that might be helpful..

thanks in advance

Sorry, data sheet/schematics are not available.

Please contact [email protected] for repair cost.

Our flat fee repair schedule will let you know the price for this servo.
http://www.hitecrcd.com/homepage/nsupport_SFS.htm

A HS-422 is $6