Toshiba motherboard schematic for the Quanta BU3 design, with D3B noted in the file name, likely the revision or build marking. Quanta is a contract manufacturer that names its laptop platforms with short codes like BU3. Use the drawings to follow the power-on sequence, check regulator outputs, trace signal lines and find components on a shorted rail. The Toshiba model is not named, so confirm the BU3 code and revision on your PCB match before working from it. Any PDF viewer opens the file.
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 (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @abgm_manutencao_esquemas | 31 Jul 2019 | Open file on RM Schematics |
| @bartonarquivos | 8 Sept 2023 | Open file on RM Schematics |
| @smschematics | 26 Nov 2025 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.