The PG12864LRS-ANN-B module is documented here in a 184 KB PDF datasheet. It is a 128 by 64 dot graphic LCD, with the ANN-B suffix selecting its particular configuration within the LRS line. Repair technicians can pull the connector pinout, voltage ratings, contrast adjustment details and backlight data from it, along with mechanical dimensions for fitting. Before swapping a module, check that the code printed on the rear label matches exactly, since neighbouring suffixes may change pin order or supply needs.
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 @acodis_lcd_datasheets_EDID. Enginerys does not host this file.
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