I will double check tomorrow. I think I have lights and awning both with and without shore power. Are the lights and awning strictly 12V?
Yes they are 12 volt, can't say there are not any exceptions to that though.
I could be wrong but I'm thinking your lights and awning may be powered by the converter, so they don't need the battery to get 12 volts, if your plugged into 110. I'm thinking your jacks and slide(s) are wired to the battery, so if that breaker trips, they get no juice. That's the only way I can see why they wouldn't work and other 12 volt stuff does....
Like I said, follow the positive wire from the battery and you should find the breaker... They are just a circuit breaker that if tripped it will resets itself when it cools down. They can ware out, just like regular breakers.