Reference PDF for the BQ24753A, a Texas Instruments charge controller part number commonly found on laptop motherboards, filed here at 2.06 MB. Expect the pin assignment, application schematic and electrical characteristics rather than a full board diagram. It helps when diagnosing charging faults, checking adapter detection and input current sensing, or confirming which external MOSFETs and sense resistors surround the chip. Verify the full part marking on the IC, since suffix letters can indicate different variants with changed behaviour.
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 @laptopbios21. 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.