Power board schematic numbered LS-6121P for the NCL50 project, a revision dated 0408B and marked pre-MP, meaning a pre-mass-production build. The LS prefix follows Compal numbering for small auxiliary boards, here the one carrying the power button or related circuitry. At 125 KB the PDF is short, mainly showing the switch, LEDs and the connector to the mainboard. Use it to check continuity of the power-on signal. A PVT edition also exists, so compare details if your board differs from this drawing.
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 @hrtechno. Enginerys does not host this file.
All sources (11)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @hrtechno | 23 Jul 2021 | Open file on RM Schematics |
| @nityatechnology2020 | 29 Jul 2021 | Open file on RM Schematics |
| @BiosSchematicWorld | 26 Oct 2021 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 26 Apr 2022 | Open file on RM Schematics |
| @nityatechnology2020 | 13 Jan 2026 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 25 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 2 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.