Schematic in PDF for a Positivo Stilo laptop built by Shuttle, with board code 71R-H14BT4 and a size of 885 KB. No specific Stilo model number appears in the name, so identify the machine by the board code on the PCB. The drawing is used to trace the power-up sequence, find the input protection and charger circuits, and locate test points for each voltage. The 71R-prefixed numbering is typical of Shuttle boards, and the code on your motherboard should match exactly before working from it.
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 @abgm_manutencao_esquemas. 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.