This shows the wire setup in my Jayco. AFAIK, it's the same basic common setup that is used in TT's.
1. If you are not getting sat signal, turn off the power booster and try it.
2. I would test your cable setup, bypass all the TT cables by running the sat dish cable thru the window or door direct to the cable box and HDMI the box to the tv. Once you know the dish works then look at the Jayco setup and compare that to yours.
If you are not getting a signal through the cables at your wall plate , I would unscrew it and look behind it to be sure they are making a connection.
My cable was not making contact due the thin TT wall construction which compressed the cable at the connector. The cable pulled off the connector.
https://www.jaycoowners.com/forums/f34/coax-connections-in-27dsrl-19274.html