Compal LA-3551P schematic at revision 1A, with project codes ICL50/51 and ICK70/71 listed in the name, suggesting the board serves several related chassis variants. The laptop brand is not stated, so match the board number silkscreened near the memory or edge of the PCB. This 1.48 MB PDF is useful for tracing the power-on sequence, measuring standby and main rails, locating fuses and test points and checking component values. Compal designs boards for many notebook brands under its LA- numbering.
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 (7)
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 |
| @alischematics | 13 Sept 2021 | Open file on RM Schematics |
| @pepeelectronica | 28 Apr 2022 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 6 May 2025 | Open file on RM Schematics |
| @smschematics | 26 Nov 2025 | Open file on RM Schematics |
| @schematics_bios | 27 Jul 2026 | 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.