Schematic for a board coded Z84FM, in PDF form at about 900 KB. No brand, model or revision appears in the name, so check the title page and the PCB markings before use. Other Z84 variants share the base code, and suffix letters often mark different configurations, so the full code must match. With the drawing a technician can follow the power path, identify standby and main rails, check power good signals and find components to measure when the board shows no power or no display.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @alischematics. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.