Path: utzoo!mnetor!uunet!husc6!rutgers!cbmvax!gunther
From: gunther@cbmvax.UUCP (Ed Gunther QA)
Newsgroups: comp.sys.amiga
Subject: Re: 3.5 Drive comments, question
Message-ID: <3284@cbmvax.UUCP>
Date: 8 Feb 88 22:47:12 GMT
References: <4032@hoptoad.uucp>
Reply-To: gunther@cbmvax.UUCP (Ed Gunther QA)
Distribution: na
Organization: Commodore Technology, West Chester, PA
Lines: 59

In article <4032@hoptoad.uucp> slc@hoptoad.UUCP (Steve Costa) writes:
> 
> It's a Prodrive (actually NEC), and now that I have it I can see why it
> took over a month to get to the top of the backorder list.

     So you didn't even buy it from us and you have the nerve to ask
     these kinds of questions, huh?

> 
> QUESTION: If I want to switch the drives DF0/DF1, what do I need to do?
> Switching the cable alone didn't work (no drive activity at all). So, I
> assume that I need to change the jumpers. However, the jumpers look
> different, and are in different places, on the two drives. Is there some
> general principle that I can apply here, or the jumper method quite
> specific to each of the two drives?

     Yes, you have to change the jumper settings.
     Well, I assume you know how to setup your drive as df0:.  Since you
          didn't get it from us this is "your problem".

     Currently, B2000s with two different styles of drives have been shipped.

     One very simple style just has device select jumpers.  Place the jumper
     on D0 or unit 0 zero select or whatever it may be called for the drive to
     be df0: and on D1 or unit 1 for the drive to be df1:

     The second, more complex style, has numerous jumpers for setting just
     about all the features of the drive.  This is a model of the
     Matsushita JU-363, but some versions, with the same model number, have
     the simplified jumper settings indicated above.  To use such a drive as
     df1:, use the jumper settings indicated below:

     bottom view of drive       Drive     Connector  
                             =========================
                              
                             *  *  *--*  *  *  *  *  *
                                I           I  I
                             *  *  *  *  *  *  *  *--*

                             D  D  D  M  D  I  D     D
                             0  1  2  U  3  U  C     R



             "*"          indicates a pin
             "I" and "--" indicate junpers


     Lastly, attach your df0: drive to the last connector on the 34 pin
     floppy cable and df1: to the center connector.
     This should do the job for you.
-- 
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