What model receiver do you have...922 or 920?
Check Option 6-4-5 and line B against the 16 digit serial on the back of the receiver,,they have to match.
Next go to G1-5 to make sure you get a signal..ARTS Channel
then go to G1-3 and see if you get a digital lock..no picture.
Check under programming satellites "option 6-4-4 for a check mark on W1