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?

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