Small 67.6 KB PDF filed under BQ24727, a Texas Instruments battery charger controller found on many laptop motherboards. With such a small size, expect only a summary or partial datasheet with pinout and a basic application diagram. Use it to locate the sense resistor inputs, adapter detect and MOSFET driver pins around the charger IC, and to check whether expected bias voltages are present. Any PDF reader opens it; verify the full marking on the chip since similar parts in this family have different pin functions.
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.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.