PDF schematic for Compal motherboard LA-A171P, revision 1.0, in an 800 KB RAR archive; this board number is also used in the ThinkPad S540 entries of this index, though the file name itself states no model. The drawings cover power rails, charger, EC, CPU and memory circuits, helping trace a short, check voltages and follow the power-on sequence. Open it with any PDF viewer. Confirm the board number and revision silkscreened on the PCB match before relying on component 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 @schematicslaptop. Enginerys does not host this file.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 5 Feb 2023 | Open file on RM Schematics |
| @cyberlanelectonik | 18 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 14 Aug 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.