Coax wiring schematic needed

[gary s swenson]

I have a 2017 3721 RL that has cable connection issues. I have removed the access panel to get behind the convenience center. I found the splitter but it is hooked up to the satellite connections. I am trying to get the park cable to work. I have run a coax continuity check on the cable connection and do not find a signal to any of the TVs. Can not find the problem. Thought if anyone had even a general schematic it might help. Thanks Gary