Schematic in PDF form for the Samsung 300E4A laptop, with BA41-016661 and the project name Petronas given in the name, packed as a RAR archive. BA41 numbers are Samsung part numbers for mainboards. With the diagram a technician can trace power rails, follow the power-on sequence, identify controllers and check signal paths when diagnosing a dead or shorted board. Open the PDF in any reader once extracted. Confirm that the board number printed on the PCB matches 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 | 29 Oct 2025 | Open file on RM Schematics |
| @cyberlanelectonik | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 27 Oct 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.