ALIGN Version 1.6



PROGRAM OVERVIEW

   The ALIGN program allows you to move a diskette drive head to
   absolute track locations and operate the drive while checks and
   adjustments are made.  40 track single or double-sided drives are
   supported.

   ALIGN is one of several tools needed to adjust and service
   diskette drives.  The ALIGN program does not attempt to teach you
   how to do an alignment, but it isn't difficult if you have what
   you need.  In addition to this program, you should have:

     The drive manufacturer's alignment and service procedures.

     An oscilloscope (dual trace with triggered sweep).

     A DYSAN double-sided analog alignment diskette for 40 track
     drives, 224/2A #800180.

     Extension or external diskette drive signal and power cables are
     very helpful.

   See the notes at the end of this document for possible sources for
   these items.

   An analog alignment diskette contains NO data, just special
   waveforms and can't be copied.  (It's really copy protected!) You
   can try the program using any diskette.  The ALIGN program does
   not write on diskettes.

   (It should also be possible to use this program to adjust 80 track
   drives provided you have the proper alignment diskette.  However,
   some of the program commands may not be useful since they have
   track addresses hard coded for the 40 track alignment diskette.)



SYSTEM AND DISKETTE DRIVE REQUIREMENTS

   ALIGN runs under IBM PC-DOS on a PC or PC/XT with at least 64K and
   an 80 column display, either monochrome or color.

   Since ALIGN uses standard BIOS interfaces for all I/O, it should
   also work on most IBM compatibles.  It does not work properly on
   the PCjr.

   The diskette drives to be adjusted are connected to the PC in the
   usual manner.  The ALIGN program works with standard IBM (Tandon)
   diskette drives and should work with others that use the same
   electrical interface.