Schematic of the LG R490 notebook motherboard made by Quanta, project QL2, board DA0QL2MB8F0, revision 1A, in a 1.39 MB PDF. It lets a technician trace power rails, follow power-on sequencing and charger circuits, and locate components on a shorted line. Quanta supplied this board to LG under contract, and the DA0 number embeds the QL2 project code. Check that the board number and revision 1A printed on the PCB match before relying on component values, since other revisions may differ.
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 @alischematics. Enginerys does not host this file.
All sources (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @alischematics | 13 Sept 2021 | Open file on RM Schematics |
| @pepeelectronica | 28 Apr 2022 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 12 Oct 2022 | Open file on RM Schematics |
| @ShareMan_Electronic_Files | 9 May 2025 | Open file on RM Schematics |
| @schematics_bios | 3 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.