[comp.sys.amiga] 3.5 Drive comments, question

slc@hoptoad.uucp (Steve Costa) (02/08/88)

I just installed my second internal 3.5" floppy in my 2000, and it's nice
to have a full complement of drives: 2 floppy, 1 hard. Now if I could
only afford a twin 20 MEG Bernuoulli Box (and a controller that would run
it... I assume my 2090 won't).

It's QUIET!!! My 1000 drives were very noisy (gronk!), so it was nice to
have the quiet murmuring of the first internal drive on the 2000. But the
new one is so quiet, I have to look at the light to be sure it's working.
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.

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?

schein@cbmvax.UUCP (Dan Schein CATS) (02/09/88)

In article <4032@hoptoad.uucp> slc@hoptoad.UUCP (Steve Costa) writes:
>
>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?

  Sounds like you have already removed the drives from their mounting bracket.
 So why not simply switch their positions along with the cable? You assumption
 of jumpers needing to be changed is/was correct. But since your drives have
 the jumpers at a different place, its safe to bet they are from 2 different
 companies and that the jumper settings would be different.

  On the lighter side:

  Whats wrong with 0 on the right and 1 on the left? Its been that way ever
 since the 4040 drives. (Now thats old! :-)

-- 
   Dan Schein		 uucp: {ihnp4|allegra|burdvax|rutgers}!cbmvax!schein
   Commodore AMIGA			ARPANET:  cbmvax!schein@uunet.uu.net
   1200 Wilson Drive			Bix: dschein	     Plink: Dan*CATS
   West Chester PA 19380		phone: (215) 431-9100	   ext. 9542
+----------------------------------------------------------------------------+
   All spelling mistakes are a result of my efforts to avoid education  :-)
+----------------------------------------------------------------------------+
        I help Commodore by supporting the AMIGA. Commodore supports
         me by allowing me to form my own suggestions and comments.

gunther@cbmvax.UUCP (Ed Gunther QA) (02/09/88)

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.
-- 
(((((((((()((((((((())(((((((()))((((((())))(((((()))))((((())))))(((()))))))
  __  Ed Gunther              COMMODORE AMIGA TEST ENGINEERING
 /        /\                  "The LAST line of defense, if "THEY" let us!"
<    ==  /__\                 UUCP  ...{allegra,ihnp4,rutgers}!cbmvax!gunther
 \__    /    \                PHONE 215-431-9356 (life or death only please!)
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dfisk@hawk.ulowell.edu (David Fisk) (02/09/88)

In article <3283@cbmvax.UUCP> schein@cbmvax.UUCP (Dan Schein CATS) writes:
>In article <4032@hoptoad.uucp> slc@hoptoad.UUCP (Steve Costa) writes:
>>
>>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?
>
>  Sounds like you have already removed the drives from their mounting bracket.
> So why not simply switch their positions along with the cable? You assumption
> of jumpers needing to be changed is/was correct. But since your drives have
> the jumpers at a different place, its safe to bet they are from 2 different
> companies and that the jumper settings would be different.
>-- 
>   Dan Schein		 uucp: {ihnp4|allegra|burdvax|rutgers}!cbmvax!schein
>   Commodore AMIGA			ARPANET:  cbmvax!schein@uunet.uu.net
>   1200 Wilson Drive			Bix: dschein	     Plink: Dan*CATS
>   West Chester PA 19380		phone: (215) 431-9100	   ext. 9542

This is probably the easiest solution to your problem, if you want to have
DF0: on the left and DF1: on the right. I just finished installing a pair of
ProDrives in my 2000 so I can offer a comment if you want to do it by
changing jumpers. If you want the ProDrive as DF0: you will have to change
the jumper in the block to the left (looking at the drive upside down, front
towards you), it needs to be moved one position back (I'd make a picture but
the drive is all fastened in and my memory is not that exact). Also
remember to have the data cable positioned with the stripe on the left (The
original drive that was with my 2000 was the other way around). You'll have
to ask someone who has a 2010 what the jumper setting for that to be DF1:
though.
 
 Hope this is some help.

 ----------------------------------------------
 | David Fisk - University of Lowell CS Major | 
 | dfisk@hawk.ulowell.edu                     |
 ----------------------------------------------

ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab) (02/10/88)

In article <3283@cbmvax.UUCP> schein@cbmvax.UUCP (Dan Schein CATS) writes:
>  On the lighter side:
>
>  Whats wrong with 0 on the right and 1 on the left? Its been that way ever
> since the 4040 drives. (Now thats old! :-)
>
Dear Commodore,

	Please, when selling 3.5" drives for the 2000, or when selling
2000's with two drives in them, include a couple of little stickers or
something that will permit the user to label his/her drives, so that s/he and
visitors to his/her home will know WHICH DRIVE IS WHICH.

	I've always had to go through a brief hair-pulling session every
time I've sat down at a 2000 with two drives in it.  I sit down, and insert
my disk into one of the drives.  Then, a blank expression crosses my face as
I wonder which drive is which.  I'm supposed to know these machines inside
and out, so I resist the urge to ask which drive is which.  So I take a wild
guess and try df1:.  Invariably, I get it wrong.

	So, dearest Commodore, could you print up some stickers for users to
use?

_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
Leo L. Schwab -- The Guy in The Cape	ihnp4!ptsfa -\
 \_ -_		Recumbent Bikes:	      dual ---> !{well,unicom}!ewhac
O----^o	      The Only Way To Fly.	      hplabs / (pronounced "AE-wack")
"Work FOR?  I don't work FOR anybody!  I'm just having fun."  -- The Doctor

schein@cbmvax.UUCP (Dan Schein CATS) (02/11/88)

In article <5208@well.UUCP> ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab) writes:
>In article <3283@cbmvax.UUCP> schein@cbmvax.UUCP (Dan Schein CATS) writes:
>>  On the lighter side:
>>
>>  Whats wrong with 0 on the right and 1 on the left? Its been that way ever
>> since the 4040 drives. (Now thats old! :-)
>>
>Dear Commodore,
>
>	Please, when selling 3.5" drives for the 2000, or when selling
>2000's with two drives in them, include a couple of little stickers or
>something that will permit the user to label his/her drives, so that s/he and
>visitors to his/her home will know WHICH DRIVE IS WHICH.
>
  CBM *ALWAYS* puts drive "0" on the right. On page 4, paragraph #2 of the
  2010 installation guide it says:

  "The 2010 will be mounted on that plate to the left of the first floppy..."
						 ^^^^ ^^ ^^^ ^^^^^ ^^^^^^
  The point im trying to make is that CBM has said since the 4040 that
  drive "0" is on the right, and drive "1" is on the left.
>
>	So, dearest Commodore, could you print up some stickers for users to
>use?
>
  So if someone wants to switch these drives, thats their business, but CBM
  should not have to provide stickers. The person who switched the drives
  can take a trip to the local electronics supply house (or a hamfest) and
  buy a pack of press-on numbers/letters for a few bucks.

>Leo L. Schwab -- The Guy in The Cape	ihnp4!ptsfa -\
-- 
   Dan Schein		 uucp: {ihnp4|allegra|burdvax|rutgers}!cbmvax!schein
   Commodore AMIGA			ARPANET:  cbmvax!schein@uunet.uu.net
   1200 Wilson Drive			Bix: dschein	     Plink: Dan*CATS
   West Chester PA 19380		phone: (215) 431-9100	   ext. 9542
+----------------------------------------------------------------------------+
   All spelling mistakes are a result of my efforts to avoid education  :-)
+----------------------------------------------------------------------------+
        I help Commodore by supporting the AMIGA. Commodore supports
         me by allowing me to form my own suggestions and comments.