Portuguese training course on motherboard repair, an 8.30 MB PDF. It is study material rather than a schematic of a particular board.

Reference PDF for the BD136, BD138 and BD140 transistor series, catalogued as a schematic but in practice a component datasheet of 51.2 KB.

PDF schematic excerpt for the Samsung Galaxy S6 Edge, model SM-G925F, marked as the second copy of a set.

Schematic PDF, 11.8 MB, whose name le19a111061 is only a cryptic code, apparently pointing to a 19-inch LE-series LCD TV or monitor.