Large 27.9 MB PDF schematic for a Dell laptop motherboard numbered LA-J191P, revision 1, marked A00; the specific Dell model is not stated in the name. LA-series numbers belong to Compal, which designs and manufactures many Dell mainboards. Technicians use the sheets to trace power rails, check the charger and EC circuitry and understand the startup sequence when a board stays dead. Cross-check the board number and revision printed on the PCB, as other LA-J191P revisions may differ in component values or placement.
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 @cynetitsolution. Enginerys does not host this file.
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The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @cynetitsolution | 5 Feb 2026 | Open file on RM Schematics |
| @schematics_bios | 5 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.