Macintosh LC 630 and Quadra 630 Developer Note
Download it here: Macintosh LC 630 and Quadra 630 Developer Note.pdf
This is Apple Computer's own developer documentation for Macintosh LC 630 and the Quadra 630, published in 1994. It covers the 630 chassis, the move from SCSI to IDE for the internal hard disk, the video-in and TV-tuner slots, the communications slot and the processor-direct slot.
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.