PDF of 1.20 MB whose Portuguese title translates to primary and secondary meshes, most likely a reference on primary and secondary power lines or circuits.

Reference PDF for the 74LVX32, a quad 2-input OR gate from the low-voltage 74LVX logic family, catalogued under schematics at 68.6 KB.

Repair schematic for the Compal LA-1591 mainboard at revision R2.0, archived as a 983 KB RAR.

PDF titled troubleshooting, 1.56 MB, with no device, brand or model named in the file name, so its scope can only be known by opening it.

PDF tied to the Acer Aspire E5-574 and E5-574G, with Zoro_SL in the name, which looks like the internal project code.