Laptop schematics for the Lenovo G400 on Compal board LA-3781P, packed in a 1013 KB RAR archive. Extract it with WinRAR or 7-Zip and open the PDF in any viewer that can search component designators. The LA-3781P number and its revision are printed on the PCB, so match them before tracing circuits. Technicians use these diagrams to follow power rails, check the PWM controller outputs, find test points and isolate the component responsible for a short.
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 @IT_SERVICE_WORLD. 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 | |
|---|---|---|
| @IT_SERVICE_WORLD | 1 Oct 2019 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 23 Feb 2021 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 2 May 2021 | 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.