TV's not so good on cable

[mcr1010]

The bedroom tv comes in great on cable, but the other two, one over door and outside not so good. All three come in great off the ant. Must be the splitter after the bedroom tv going to the other two. But, does not look like there is access to that area without removing some not so easy panels. I read where a few folks here had a cable problem, mostly needing tightening. Am open to suggestions and if anyone has a link to diagrams that would probably help. Or does Thor have a link with access to their diagrams.
Thanks.

[JamieGeek]

Did you turn off the booster? (The booster is way in the back of the kitchen cabinet above the shelf--you'll probably need a step stool to get to it.) Turn it off for cable and on for the antenna.

If you did turn it off you could try unscrewing that panel with the booster and see if all the connections there are good--an "easy" thing to check provided you can reach the booster.

[mcr1010]

Yes, the booster was off. I pulled the panel out and checked the connections at the panel and they were ok.