Macintosh LC 575 Developer Note
Download it here: Macintosh LC 575 Developer Note.pdf
This is Apple Computer's own developer documentation for Macintosh LC 575, published in 1994. It covers the 68LC040 logic board, the communications slot, the built-in display and the expansion slots of the later LC 500-series chassis.
Apple's developer notes are a different document from the Service Source repair manuals: the Service Source tells a technician which module to swap, while the developer note gives the electrical and architectural detail — rail currents, connector pinouts, power budgets and chip functions — that a repairer needs in order to make a go/no-go measurement. Several figures on this wiki are cited to this document.