Path: utzoo!mnetor!uunet!husc6!bbn!uwmcsd1!ig!agate!ucbvax!UVPHYS.BITNET!SYSTEM
From: SYSTEM@UVPHYS.BITNET (NIK ZAPANTIS)
Newsgroups: comp.sys.atari.st
Subject: HELP needed with 5.25" drive hook-up
Message-ID: <8802040058.AA28448@ucbvax.Berkeley.EDU>
Date: 3 Feb 88 22:45:00 GMT
Sender: donahn@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 49


  After reading several digest articles on how to hook up an IBM stule
5.25" drive to the ST, I decided to try it myself.
I used a spare slimline Panasonic 5.25" drive which I tried connecting to
the ST with no success. Here is what I did in case someone could help.

     1. bought an atari external floppy DIN cable and cut one of the DIN's off.
     2. soldered the bare wires to a 34 pin plug that connects to the edge
        connector of the Panasonic drive; here are the pin connections

      ST external floppy     Panasonic (IBM style)
          connector             edge connector
               1                   30
               2                   32
               3                    3
               4                    8
               5                   12
               6                   no connection
               7                    3
               8                   16
               9                   18
              10                   20
              11                   22
              12                   24
              13                   26
              14                   28

     3. had our shop built a power supply and box for the drive

  I also removed the 150 ohm resistor (near edge connector of the Panasonic).
The DS jumpers go from 1 to 4 and the jumper is put in position #2.
All other jumpers were left where they were when this drive was on an IBM XT.
I have no special software to take care of the seek rate, and I tried using
the above set up with PC ditto.
Both the ST and PC ditto cannot see the 5.25" drive, although I have installed
both drive A and B.
I get a message, when I select B, to put disk B into drive A.

Any ideas why this set up does not work?

Thank you in advance

Nik Zapantis
UVic, Physics
Victoria, BC
V8W 2Y2
(604) 721-7729

system@uvphys.bitnet