Service schematic for Sony motherboard MBX-165, platform code MS90, revision 1.0, supplied as a 1.3 MB PDF. MBX numbers are Sony's own identifiers for VAIO mainboards and are normally printed on a sticker or the silkscreen of the PCB. Technicians rely on this kind of drawing to trace the power-up sequence, measure voltages at regulator outputs, check the embedded controller and identify components around a short circuit. Before trusting values, confirm the revision on the board reads 1.0, as later releases may change parts.
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 @abgm_manutencao_esquemas. 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 | |
|---|---|---|
| @abgm_manutencao_esquemas | 1 Aug 2019 | Open file on RM Schematics |
| @one5technology | 19 Nov 2020 | Open file on RM Schematics |
| @nityatechnology2020 | 28 Jul 2021 | Open file on RM Schematics |
| @bartonarquivos | 8 Sept 2023 | Open file on RM Schematics |
| @smschematics | 26 Nov 2025 | Open file on RM Schematics |
| @nityatechnology2020 | 13 Jan 2026 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.