At the place where I work we have an old C Band satellite system, which lost the arc during a bad windstorm. I was trying to reprogram the receiver, and the instructions said to move it East until I got a "No Return Pulse" signal, which I did. Then it said to move it West a bit, and set that as the East limit. When I went to move it back West a few degrees, it still gave me a "No Return Pulse" message. Now the dish will not move East or West. What have I broken?