Monitor firmware for the AOC E2251FW using a Realtek RTD2281W display controller, with the image read from a PM25LD020 memory chip; the name also carries the word Fujian, likely referring to the production variant. The PM25LD020 is a 2 Mbit SPI flash, so the dump should be about 256 KB once extracted. Reflash it with an SPI programmer when the scaler fails to boot or the menu behaves wrongly. Check that your main board uses the same controller and flash, and back up the existing chip before writing.
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 @biosarchive. Enginerys does not host this file.
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 →