Circuit diagram of the Quanta QL2 motherboard DA0QL2MB8F0, revision 1A, used in the LG R490 laptop, supplied as a PDF inside a RAR archive. The schematic lets you follow power rails from the charger and system regulators through to the CPU, chipset and memory, and find the signals behind no power, no display or shorted-rail faults. Quanta uses the DA0 plus project code pattern for its board numbers. Confirm that the revision printed on your PCB is 1A, because component placement and values can change between revisions.
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 (9)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @schematicslaptop | 14 Aug 2021 | Open file on RM Schematics |
| @LaptopsBoardview | 17 Aug 2021 | Open file on RM Schematics |
| @pepeelectronica | 27 Apr 2022 | Open file on RM Schematics |
| @abgm_manutencao_esquemas | 18 Nov 2023 | Open file on RM Schematics |
| @generalschematics | 19 Oct 2024 | Open file on RM Schematics |
| @cyberlanelectonik | 22 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 26 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 3 Aug 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.