Schematic package for the Sony VAIO VGN-SR55E, model code M750, motherboard MBX-190, supplied as a PDF inside a RAR archive of 878 KB. MBX numbers are Sony motherboard identifiers. The circuit diagrams help trace power rails, charging circuitry, enable signals and connector pinouts when diagnosing a dead or partly working board. Open the extracted PDF in any reader and search by net name. Check that your board is MBX-190 and note its revision before relying on component 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 @schematicslaptop. Enginerys does not host this file.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 28 Dec 2022 | Open file on RM Schematics |
| @cyberlanelectonik | 23 Jul 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.