Lenovo 3000 N220 and N440 archive marked Wistron, with a trailing A that may indicate a variant or revision, though the name does not explain it. The 1.66 MB RAR has unlisted contents, likely schematic documents for the shared mainboard. Wistron built these boards, so look for its project name and revision on the PCB and compare it with the documents. Use the material to trace power rails, find test points and isolate shorts. Unpack it with WinRAR or 7-Zip first.
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 (12)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 6 Sept 2017 | Open file on RM Schematics |
| @LaptopsBoardview | 4 Jun 2019 | Open file on RM Schematics |
| @freeschematicdiagram | 6 Jun 2019 | Open file on RM Schematics |
| @abgm_manutencao_bios | 10 Jul 2019 | Open file on RM Schematics |
| @abgm_manutencao_bios | 8 Aug 2019 | Open file on RM Schematics |
| @pepeelectronica | 21 Apr 2022 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | Open file on RM Schematics |
| @generalbios | 15 Dec 2024 | Open file on RM Schematics |
| @cyberlanelectonik | 18 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 27 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 13 Aug 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.