From: dbinford@convex.com (David Binford)
Subject: Re: WD1003-WAH and WD1003-WA2
Date: Mon, 5 Oct 1992 19:02:18 GMT
Organization: Engineering, CONVEX Computer Corp., Richardson, Tx., USA
X-Disclaimer: This message was written by a user at CONVEX Computer
              Corp. The opinions expressed are those of the user and
              not necessarily those of CONVEX.

In article <1aq0voINNib2@usenet.INS.CWRU.Edu> au240@cleveland.Freenet.Edu (Ari Pitkanen) writes:
>
>Hello!
>
>I like to have some information about WD1003-WAH and WD1003-WA2 harddisc
>controllers.  Are they for MFM or RLL drives?  Is there some kind of
>database about hd controllers?
>
>Email me if you can help me.
>
>Thanks.
>
>-- 
>Ari Pitkanen : au240@cleveland.freenet.edu


I asked a simular question once and someone (don't remember who)
sent me this manual.  It is an MFM controller. Hope this is what
you needed.

 ############################################################################

     Western Digital is a registered trademark of Western Digital 
     Corporation; IBM PC, AT and XT are registered trademarks of the 
     International Business Machines Corporation; MS DOS, OS2 and PC DOS 
     are registered trademarks of Microsoft Corporation.
     
                                   WD1003-WA2
     
                                   User Guide
     
     
     The WD1003-WA2 controller is designed to interface with up to two 
     Winchester ST506/ST412 hard disk drives and up to two floppy disk 
     drives in an IBM PC AT or compatible system and will support drives 
     with up to 16 read/write heads and 2048 cylinders.  Each drive may be 
     a different configuration.
     
     The WD1003-WA2 can operate in computer systems with bus speeds up to 
     8MHz.  The WD1003-WA2 REV E044 can operate in systems with bus speeds 
     up to 12MHz.  If you do not know your system's bus speed, contact 
     your system manufacturer.  Bus speed and clock speed are not the same 
     number.
     
     Installation of the controller requires three steps:  1) verifying 
     jumper settings; 2) installing into the host computer; 3) formatting 
     the hard disk drives.  To complete installation, you will need the 
     following:
     
     Two hard disk cables (3 if using 2 hard disk drives); one 34 pin 
     floppy drive cable (a daisy chain type cable if using two floppy disk 
     drives); Winchester hard disk drive; floppy disk drive; screwdriver; 
     MSDOS Version 2.0 or later; IBM Advanced Diagnostic diskette (or 
     similar program for IBM compatibles); System Diagnostic Diskette (or 
     equivalent); FDISK and Format utility (normally included with MSDOS).
     
                            Preparation of Controller
     
                                     WARNING
                 HANDLE THE CONTROLLER BY THE ENDS OF THE BOARD
                SOME OF THE CHIPS ARE STATIC SENSITIVE AND DAMAGE
                  MAY OCCUR IF THE BOARD IS INCORRECTLY HANDLED
     
     Before you can install your WD1003-WA2, you will need to be certain 
     that the jumpers (small shorting plugs) are correctly set.  Refer to 
     Table 1 for correct jumper settings.  Modification of factory jumper 
     settings is rarely necessary.  Modify jumpers only under the 
     direction of a qualified individual; i.e. your dealer.
     


















     
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     3  ZDJ6                          J3? ZJ4 ZJ5ZJ1                    3
     3  @DY                            33 33  33 33                     3
     3             1 2 3               @Y @Y  33 33                     3
     3           E y y y                      33 33                     3
     3           E y y y                      @Y @Y                     3
     3             4 5 6               ZDDDDDD?                    yE7  3 
     3                                 3 U10  3         ZU26?      yE8  3
     3      WD1003-WA2                 @DDDDDDY         @DDDY      yE9  3
     @DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD?          ZDD?                ZDDDY
                                     @AAAAAAAAAAY  @AAAAAAAAAAAAAAAAY
     





















































     
     
                                     Table 1
     
                           WD1003-WA2 Jumper Settings
     
        Pin     
     Connects         Description
     
                      DO NOT MOVE PRIMARY ADDRESS JUMPERS UNLESS YOUR
                      OPERATING SYSTEM IS CONFIGURED TO ACCEPT TWO HARD
                      DISK CONTROLLERS. CERTAIN OPERATING SYSTEMS SUPPORT
                      TWO CONTROLLERS IN THE SAME SYSTEM. IBM DOS AND MANY
                      IBM-COMPATIBLE OPERATING SYSTEMS DO NOT SUPPORT THIS
                      FEATURE
     
     E2-E3            Standard factory setting. Selects primary addresses.
     
     E5-E6            Standard factory setting. Selects primary addresses.
     
     E1-E2            Selects secondary addresses for floppy disk drive.
     
     E4-E5            Selects secondary addresses for hard disk drive.
     
     E7-E8            Standard factory setting. Supports 360 RPM floppy 
                      disk drives.
     
     E8-E9            Jumper in this position selects 300 RPM floppy
                      disk drives.
     
     
                              Hardware Installation
     
                                     WARNING
                        MAKE SURE COMPUTER IS TURNED OFF
                            AND POWER IS DISCONNECTED
     
     1.  Verify that your host computer has a 135 watt power supply.  If 
     the disk drive(s) is(are) being installed internally, it is best to 
     locate the controller in the nearest available expansion slot to the 
     drive.
     
     2.  Remove the blank expansion slot bracket.  Put the bracket away 
     and save it for possible future use.  The screw will be used to hold 
     the new controller in place.
     
     3.  The terminating resistor must be present only on the last hard 
     disk drive connected.  If there are two drives, the terminating 
     resistor must be present on the second drive.  Verify proper setting 
     of drive select switches for drive select 1 or 2. Refer to your 
     system owner's manual for information about proper drive termination 
     and select switches.
     













                                      NOTE
     
                  THE CABLES FOR THE HARD DISK DRIVE AND FLOPPY
                          DISK DRIVES ARE NOT THE SAME.
                 DO NOT USE A FLOPPY CABLE ON A HARD DISK DRIVE.
                  CONSULT YOUR DISTRIBUTOR IF YOU ARE UNABLE TO
                      DISTINGUISH BETWEEN THE CABLE TYPES.
     
     4.  Attach 34-pin control connector pin 1 to J5 on the controller 
     board.  Make sure that Pin 1 of the cable connector goes to Pin 1 on 
     the controller board.  Pin 1 of the cable connector is typically 
     located on the color coded side of the cable.
     
     5.   Connect control cable to drive.
     
     6.   Attach 20-pin data connector to J4 (Drive C or 1).
     
     7.   Attach 20-pin data connector to J3 (Drive D or 2).
     
     8.   Connect data cables to drives.
     
     9.   Attach 34-pin floppy cable connector to J1. Connect cable to 
     floppy drive.  
     
     10.  Attach Winchester activity LED connector to J6.
     
     11.  Install controller board into the expansion slot. Make sure that 
     the board is seated properly by pressing down on both ends of the 
     board.  Secure the board with the bracket screw.
     
     12.  Remove or disable any other floppy controller in your system.
     
                                     CAUTION
                  WHEN ROUTING CABLES, BE CAREFUL NOT TO PINCH
                  THEM.  CABLES MUST NOT GET CAUGHT BETWEEN THE
                 COVER AND THE BOARDS, NOR SHOULD THEY OBSTRUCT
                      ANY AIR FLOW PATH FROM FANS OR VENTS.
-- 
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
  Dave Binford		   (214) 497-4762	    dbinford@convex.COM
  Convex Computer Corp.  P.O. Box 833851   Richardson, Texas 75083-3851
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.misc,comp.sys.ibm.pc