Specification sheet in PDF form, 131 KB, for character module PC4004LRS-LSO-B, with a P1 tag suggesting the first edition or page set. The PC4004 prefix normally denotes a 40 by 4 character alphanumeric LCD, while LRS-LSO-B selects backlight, viewing and temperature options and revision B. Use it to read the pinout, controller command table, timing and supply plus contrast voltages when repairing a front panel. Large 40x4 modules often have two controller enables, so verify that in the pin list and match the label code.
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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