Welcome to Pinside weese8015 Since your Roller Disco is a Gottlieb you'll probably want to visit Pinball Resource and order a manual. http://www.pbresource.com/mansch.html
Steve Young is the proprietor over there and an excellent source of information.
Personally I find the Pinwiki very helpful, then I come back here for specific questions when I get stuck.
New! Dark mode!
Browsing Pinside at night? Getting tired of all the white? Switch to dark mode using the button in the top right (or CTRL-B)!