Datasheet for the PC1202LRU-ASO-B module in PDF format, 135 KB. The code follows the Powertip scheme, where 1202 indicates a 12-character, 2-line character LCD, and the ASO-B suffix marks option and revision. Pages like these list pin assignment, supply and logic levels, backlight data and the mechanical outline. Use it to verify wiring, contrast voltage and fit before swapping a display, and confirm that the suffix on the installed module matches, because variants can differ in backlight or temperature range.
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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