Schematic in PDF form for the Dell Latitude E5440 laptop, built on Compal motherboard LA-9832P, compressed into a 1.61 MB RAR archive. Compal uses the LA-xxxxP board numbering for many OEM notebooks. The diagrams help trace power rails such as the always-on and main supplies, follow the charger and power sequencing, and locate components when checking a short. No revision is stated, so compare the board number and revision on the PCB, and open the PDF in any viewer.
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.
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How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.