Schematic in PDF form for the MIP390D, a board associated with Megmeet, an electronics maker known for power supply and display power modules. At only 84.6 KB the document is compact, likely a few pages covering the circuit topology, component values and connector pinouts. Technicians use such drawings to trace the primary and secondary sections, check feedback loops and identify failed parts like MOSFETs, controllers or capacitors. Confirm the MIP390D marking on the actual board before relying on component references, since similar modules can differ.
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.