Lego NXT motor problem

I have an NXT 2.0 and am having trouble with the motors. With the wire (which connect LEGO servo motor to NXT) pushed all the way in to the NXT, it can only sense rotation. The motor does not turn (using the built in program feature). If I pull the wire partially out, the motor rotates, but the NXT doesn't sense rotation. I have tried re-uploading firmware, and have used motors which I know work (work fine with EV3 (they are the NXT motors so it's not a compatibility issue). I think it is a problem with the brick. Actually the motors do rotate with the wires pushed all the way in, but it only rotates 10 degrees, and after that a ringing sound can be heard. I am using NXT program function, and just put in up arrows, so I don't think it's a programming error.

The connector on the brick is damaged. You would have to open it up and check the connector. Reflowing the solder will help if the leads going into the board are not broken.

Jugiot (author)  mpilchfamily1 year ago

That seemed to work! Thanks!