This is the Rialta Service Manual that was published in 1999(?). It has a lot of good information on the various systems used to build the Rialta. There have been improvements and changes made in later years that aren't covered here, but it's worth checking out. This is the same manual that has been available from R. Crouse, but doesn't have the navigation buttons on the pages. However, it has been made searchable. A search won't find all of the references to a specific word though due to the inaccuracy of the OCR program.
