ZIP archive of 1.62 MB for the Sony MBX-152 VAIO motherboard, with ms32 in the name, likely the ODM project code. The contents are not specified, so extract it and check whether a schematic, boardview or both are included. Such service data lets a technician trace DC-in and battery charging circuits, check standby and main rails and locate components on the board. MBX is Sony's mainboard numbering for VAIO notebooks; read the label on the PCB to make sure it matches MBX-152.
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.
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