Compal LA-7811P board documentation packed as a 962 KB RAR, tagged with project code QLA01 and intended for the Lenovo B520e all-in-one desktop. Lenovo outsourced many machines of that era to Compal, which explains the LA- board number. The archive likely holds the schematic for the AIO mainboard, handy for diagnosing no-power faults, tracing standby rails and checking panel or backlight circuits. Make sure the LA-7811P silkscreen on your board matches, since similar AIO models used different Compal boards.
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 @abgm_manutencao_bios. 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 | |
|---|---|---|
| @abgm_manutencao_bios | 10 Jul 2019 | Open file on RM Schematics |
| @abgm_manutencao_esquemas | 14 Jul 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 1 Oct 2019 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 24 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.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →