Sony VAIO-series motherboard archive for board MBX-276, revision 1.0, packed as a 5.91 MB ZIP. MBX numbers are Sony's own main-board codes, printed on the PCB with a revision that should match before you trust part positions. The name does not list the contents, but a file this size typically holds schematic pages. It is useful for tracing power rails and the standby circuit, checking for shorts and locating test points and controller chips during repair.
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 @ITHINKHS. Enginerys does not host this file.
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