Schematic for the Sony VAIO PCG-NVR23 notebook, built on the MBX-67 mainboard; no revision is given in the name. This older 951 KB PDF lets a technician follow DC-in, charging and main regulator stages, read signal connections between the chipset and peripherals, and find which components sit on a faulty net. MBX numbers are Sony's mainboard designations, usually printed on the PCB, so verify the number on your board before using the sheets for fault-finding.
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 @smschematics. Enginerys does not host this file.
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