Schematic for the Dell Latitude 5420 on Compal board LA-K491P, revision 2.0 (A01), packed as a 2.24 MB RAR archive that should contain the PDF diagrams. Compal designed the board, as the LA-xxxxP code shows. Use it to follow the power sequence from adapter input to CPU rails, identify the EC and regulators, check expected voltages and find component values around a damaged area. Combine it with a boardview for placement. Note that rev 3.0 boards of the same number exist, so compare the revision marking 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 @schematiclaptopramkushwaha. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematiclaptopramkushwaha | 3 May 2026 | Open file on RM Schematics |
| @bartonarquivos | 2 Oct 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.