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Path: utzoo!linus!philabs!mcnc!akgua!akguc!rbk
From: rbk@akguc.UUCP (r.b. kummer )
Newsgroups: net.micro.atari
Subject: Re: Trak AT-D2 woes
Message-ID: <7343@akguc.UUCP>
Date: Wed, 4-Apr-84 18:35:44 EST
Article-I.D.: akguc.7343
Posted: Wed Apr  4 18:35:44 1984
Date-Received: Fri, 6-Apr-84 01:14:23 EST
Organization: AT&T Technologies, Atlanta
Lines: 16

The 34-pin edge card connector on the TRAK AT-D2 disk drive is pin-to-pin
compatible with the first 34 pins of a standard 36-pin Centronics parallel
interface (as is used on Epson and most other printers) so that ribbon
connectors can be used on both ends.  I don't have the Centronics pin
assignments readily at hand, but I can supply them if you can't find them.

Some of the early drives (before ~ Jan) also had problems with:
   a) garbled graphics output
   b) drive motor sometimes refuses to shut off
   c) won't format the 'flip' side of a disk
Problem a) can be fixed with a new ROM which TRAK will supply free of
charge.  Problems b) and c) require some added jumpers and trace cutting.
These problems have all been fixed in the current models, I'm told.

				Brad Kummer	akgua!rbk
				AT&T Bell Laboratories - Atlanta