Schematic for the Foxconn M851 design, which Sony uses as board MBX-217, revision R1.0, supplied as a 1.07 MB RAR archive. Sony VAIO laptops carry MBX numbers on the motherboard even though the board was built by an outside ODM such as Foxconn, so the MBX code stamped on the PCB is the reference to match. The drawings let a technician follow the charger and battery circuitry, check power sequencing and locate regulators when a board will not start. Confirm the R1.0 revision against the board before trusting part values.
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 @IT_SERVICE_WORLD. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @IT_SERVICE_WORLD | 1 Oct 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 2 May 2021 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.