Main board schematic for a Philco 11B notebook, referencing UI43 and the Lengda X300 design, delivered as a 1.23 MB PDF. The Lengda name indicates the original board maker behind this Philco model. The diagram lets a technician follow power rails, check the charging circuit and PWM controllers and trace signals to connectors when diagnosing no-power or no-display faults. Open it in any PDF reader and confirm the board marking on the PCB corresponds to UI43 or X300 before replacing components based on its 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 @abgm_manutencao_esquemas. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @abgm_manutencao_esquemas | 5 Aug 2019 | Open file on RM Schematics |
| @oficinacomputadores | 10 Nov 2023 | Open file on RM Schematics |
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.