strange adapter on 1541

From: William Levak (wlevak_at_cyberspace.org)
Date: 2002-10-25 20:44:19

I have come across a 1541 disk drive with a strange adapter on it.  There
is a 9 pin D connector on the outside.  This is connected to an adapter
that goes between the 6522 and it's socket at UC1.  The wires are
connected to pins 2-9.  These are for PA0-7 on the 6522, which are
normally unused on the 1541.

Does anyone know what this is for?



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