Compal schematic in PDF covering two board numbers, LA-B992P and LA-B971P, both revision 1.0. The name does not state the laptop brand or model. Two numbers in one file often means a main board and a daughter board described in the same document. Technicians use the schematic to follow the power sequence and signal paths, find the component values around a failed circuit and understand the protection logic. Check that the PCB you are repairing carries one of these numbers and the same revision before using it.
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.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @cynetitsolution | 11 Mar 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.