Small 26.2 KB PDF, filed as a datasheet, holding a schematic of a Class D amplifier rated around 200 W RMS that uses two MOSFETs in its output stage. It is a DIY-style design, likely a half-bridge switching topology driven by a modulator and gate driver. Useful for building or servicing similar amplifiers, checking dead-time and gate resistor values, and choosing the output filter. Verify the supply rails, MOSFET ratings and speaker load before powering a build, as switching amplifiers fail violently when misconfigured.
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 @pdf_servicemanual. 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.