Looking for instructions or step-by-step guide to check out in RTC for a novice.

Some suggestions

1. Click Library
   
1. Open the Collaborative Lifecycle Management documentation,
   
2. Select your version
3. Use search to search for checkin
4. Look at the tutorials
   
2. Click Library
1. Open All Media
2. Use the search to search for SCM (especially SCM FAQ)
   
3. Use a usual search engine use Jazz SCm Checkin site:jazz.net as a search term.
   

 do check this article.