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2019-12-26 17:36:50rev. 1INCORRECTHello! On this pinout, the pin 7 is missing. The AT&T 6300 video card is almost the same as the Olivetti M21/M24's one and referring the Olivetti M21/M24 Theory of operation page 5-06; the 'I' pin is missing from your pinout. In addition with the RGB pins, this pin is intended for lighter colors, or different shades of grey on a monochrome monitor, according to page 5-28. Unfortunatly , that only suppositions: my Olivetti M21 is not working properly. Anyway I hope that help you to complete this useful website! Greedings from France !APPROVED

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Pinouts.ru > Pinout of AT&T PC6300 and layout of 25 pin D-SUB female connector and 25 pin D-SUB male connector
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