Repairing the FCs

1. Just what's wrong with the FCs?
   
2. How do I fix the FCs?
   
3. Once I've fixed the FCs, how do I reset them?
   
4. How do I read the sign in the Primary or Secondary Channel?
   
5. How do I read the sign in the Bending Passage?
   
6. Of what use is the khaki cable?
   
7. Is there any use for the blue cable?
   
8. How can I figure out what to replace to get the FCs working properly?