I have received a used dish 622. Just can't seem to get a signal off it. I have two seperate dishes: 110/119 and 129. I tested the signal and it is ok. Is there a way to combine switches for it to work. Also in the back of the receiver there are 2 Satellite line inputs. Could I put one line coming from 110/119 with a SW21 switch and another line coming directly from 129 into these 2 Satellite line-in inputs. Thanks for any help you can give.