PDF specification for the PG24064FRM-BYA-I graphic display, a Powertip 240 x 64 dot module, with a P1 tag in the name that may indicate page one or a first issue. At 196 KB it should contain the outline drawing, connector pinout, electrical characteristics and timing data. The BYA-I suffix sets it apart from the DTA-I version of the same FRM panel, so check the module label. Technicians use it to diagnose missing segments, dim backlight or no display by measuring the supplies and signals listed in the sheet.
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.