Macintosh IIvx IIvi and Performa 600 Developer Note
Download it here: Macintosh IIvx IIvi and Performa 600 Developer Note.pdf
This is Apple Computer's own developer documentation for Macintosh IIvx, Macintosh IIvi and Performa 600, published in 1992. It covers the shared enclosure and its power supply ratings, the 68HC05 microcontroller and soft-power circuit, the VRAM video subsystem, the three NuBus slots and the accelerator 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.