Archive for a Sony VAIO notebook with model code PCG-NVR23 and motherboard MBX-67, compressed as a 1.88 MB RAR file. PCG model codes and MBX board numbers follow Sony VAIO naming, but the name does not say whether the contents are a schematic or boardview. Check that the MBX-67 marking appears on the PCB before relying on the material. Such documentation helps with tracing power circuitry, checking the DC-in and charger section and locating components when diagnosing faults.
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 @alischematics. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.