Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!munnari.oz.au!murdu!ucsvc!ltu!elegg
From: ELEGG@latvax8.lat.oz (WHY DONT WE GET TOGETHER SOMETIME)
Newsgroups: comp.sys.amiga.hardware
Subject: 5.25" drive problem
Message-ID: <351@latvax8.lat.oz>
Date: 8 Feb 90 00:56:53 GMT
Organization: VAX Cluster, Computer Centre, La Trobe University
Lines: 55

HI there !!!!!!
IF THERE ARE ANY AT-DRIVE EXPERTS OUT THERE I NEED HELP !!!
JUST CONNECTED A 5.25" INTERNAL DRIVE (34 PINS + POWER PINS) TO THE EXTERNAL
DISK DRIVE PORT ON THE AMIGA 2000. I HAVE CONFIGURED IT AS DF2: (AS DS1 IN
IBM TALK). THE DRIVE ITSELF IS A CHINON MSJE200A53 TYPE WITH AUTO DISK CHANGE
DETECT (I THINK). THE POWER PINS FROM THE A2000 PORT (PINS 23 AND 12) ARE
NOT USED SINCE I USED THE POWER LEADS ALREADY AVAILABLE FOR 5.25" DRIVES
INSIDE THE A2000. 
I'VE GOT ALL PINS WORKED OUT ON THE AT-DRIVE EXCEPT PINS 2 AND 4  WHICH
I HAV'NT CONNECTED . ON THE EXTERNAL DRIVE PORT PINS, I KNOW WHAT THE 
DESIGNATIONS ARE BUT I AM UNABLE TO DO ANYTHING WITH PINS 11(DSK CHNG) AND
10(DISK RESET).
  EVEN THOUGH I HAV'NT CONNECTED THESE PINS THE DRIVE SHOULD STILL OPERATE
NORMALLY.  I GET "DF2:BAD" COMMING UP ON WORKBENCH !! . THE DRIVE SEEMS
TO BE OPERATING NORMALLY (I.E. DRIVE LIGHT COMES ON, HEAD SWEEPS BACK AND
FORTH, MOTOR TURNS E.T.C.)  . MY MOUNTLIST IS CONFIGURED FOR DF2: , 0 TO
79 TRACKS AT 11 SECTORS PER TRACK. I CAN EVEN DO AN X-COPY FROM DF0: TO
DF2: !!! . THE DRIVE TYPE CAN GO TO 880K AMIGA FORMAT (MAYBE MORE) 
AND 1.4 MEG MSDOS FORMAT.

>>>>    CAN ANYONE PLEASE OFFER ANY HINTS ON HOW I MAY GET MY DRIVE WORKING
PROPERLY .  I'VE LEFT THE PIN CONNECTIONS BELOW  <<<<<<<<<<<<<<<<

           AT-DRIVE                EXTERNAL AMIGA DRIVE PORT

              34 -----------------       1
              32 -----------------      13
              30 -----------------       2
              28 -----------------      14
              26 -----------------      15
              24 ----------------       16
              22 ----------------       17
              20 -----------------      18
              18 -----------------      19
              16 -----------------
              14 -----------------      9
              12 -----------------      21
              10 -----------------      8  (MOTOR ON)
              8  -----------------      22
              6  -----------------      20
    ODD No. PINS -----------------      3,4,5,6,7  (GROUND PINS)
              
              4 (unknown)               11 (disk change)(NOT CONNECTED)
              2 (unknown)               10 (disk reset) (NOT CONNECTED)
                                        12,23-- power (not used)

        
              HELP HELP HELP HELP HELP 
                                           
                                    GEORGE GANAKAS
                                    PHYSICS DEPARTMENTS
                                    LATROBE UNIVERSITY
                                    CHISOLM INSTITUTE OF TECH.
                                    ACSNET: elegg@latvax8.lat.oz