Circuit schematic for the Lenovo 3000 Y400 laptop, supplied as a PDF and identifying the Compal motherboard LA-3062P. No revision is stated in the name, so the title block on each page should be compared with the marking on the actual PCB. Compal uses the LA-prefix numbering for its notebook mainboards, and Lenovo sourced many 3000-series boards from it. A technician uses such a document to trace the power-on sequence, check standby and main rails, identify the parts on a shorted line and follow signals across sheets in any PDF viewer.
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 @alischematics. Enginerys does not host this file.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @alischematics | 13 Sept 2021 | Open file on RM Schematics |
| @pepeelectronica | 28 Apr 2022 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 9 May 2025 | Open file on RM Schematics |
| @schematics_bios | 3 Aug 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.