IBM PC printer adapter schematic

Jules Richardson julesrichardsonuk at yahoo.co.uk
Thu Apr 5 10:57:05 CDT 2007


Is this online anywhere to anyone's knowledge? I assume it's in the techrefs 
[1] (which I don't have, unfortunately), but I'm sure I've seen the schematic 
online somewhere in the last few years.

IIRC it's only a handful of latches, buffers and address decoding - so not a 
complex bit of hardware.

[1] The circuit on the MDA card is probably the same... if someone could 
confirm that then I could at least trace it from a real MDA card here :)

cheers

Jules




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