DISH Network ViP622 DVR DTV Receiver / 180-Hours Video Recorder "direct tv cable cut fix" Questions

TV's on a DVR receiver are fine.      2 calls to Dish have resulted in being told I have a bad line connection since Satellites 199, 110, and X all show "X".  This is baloney since

...cable that feeds the TV one and break it there and put the IN/OUT port of that diplexer facing the TV1 room and the SAT port connecting to the other end of the cable you broke. The remaining UHF port ...

direct tv cable Dog chewed through the cables, direct tv wants 100$ to come out and fix, can i fix these cables my self if so how. ok if its only the rf cable and the ac cord yes you can do it your ...