Filed under schematics, this 39 KB PDF covers the 6CWQ03F and 6CWQ04F, and the paired range in the name points to a component datasheet for two related parts, not a circuit diagram. These codes follow the naming of dual Schottky rectifiers, where the digits after the prefix usually encode reverse voltage. Use it to compare ratings and pin assignment when replacing a shorted rectifier in a power stage, and check the case marking against both variants before ordering a substitute.
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 @cyberlanelectonik. 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.