Schematic shared by the ThinkPad Edge E445 and E455, LCFC board NM-A231, marked SVT and dated 20140528. SVT normally stands for a system validation test build, a stage before mass production, so small differences from retail boards are possible. The PDF helps with tracing power rails, checking connector pinouts and locating components when diagnosing no-power or charging faults. Confirm that the NM-A231 marking on your PCB matches before trusting individual part 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 @alischematics. Enginerys does not host this file.
All sources (5)
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 | 5 May 2025 | Open file on RM Schematics |
| @pkbiosbdv | 14 Nov 2025 | Open file on RM Schematics |
| @schematics_bios | 3 Aug 2026 | Open file on RM Schematics |
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