Microsoft device schematic identified by model number 1872 and board part number M1098028-008, delivered as a 6.19 MB PDF. The name gives no product line, so match the model number on the device label and the part number on the logic board before using it. Such drawings cover the charging and power path, PMIC rails, display and battery connectors and storage interfaces. Technicians use them to follow a dead rail, find a shorted capacitor or check connector pinouts. Any PDF viewer opens it, and net search helps tracing.
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 @afsschematicfree. 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.