PDF datasheet for the PC1602LRU-LHO-H character LCD module, a 16x2 display by the standard 1602 convention. The LHO-H suffix identifies this particular variant within the LRU line. Expect a pin function table, supply and LCD drive voltages, backlight current and polarity, interface timing and dimension drawings. Useful when the display on equipment shows nothing or dim characters: verify VDD, the contrast node and backlight feed against the sheet, then match the code before ordering a swap.
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.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.