Sony schematic for motherboard MBX-214, with the M870 code and DDR3 memory noted in the name, packed as a PDF in a 1.50 MB RAR archive. MBX numbers are the board designations Sony uses for VAIO laptop motherboards, and Sony boards of that era are often ODM-built. The diagrams help trace power rails, memory supply and signals, and find faulty components on a dead or non-booting board. Check that the MBX number on the PCB matches before following component locations, and open the file in any PDF viewer.
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 @schematicslaptop. Enginerys does not host this file.
All sources (6)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 19 Feb 2022 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 19 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 Aug 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 2026 | 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.