PDF schematic of about 2.6 MB titled only Metro, which is probably a project code name; the name gives no brand, model or board number. Open it and check the title block on the first pages for the board code and revision, then compare with the PCB. Once identified, a schematic like this helps trace power rails, follow the power sequence, find components and test points, and diagnose shorts. Do not rely on it until the board number matches.
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 @schematiclaptopramkushwaha. 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.
Any PDF readerSumatraPDFFirefox / ChromeFlexBV (links PDF to boardview)