4000 SX  (250-4900)                   Floppy            Faxback Doc. # 1527

  Your Tandy 4000 SX can support two internal diskette drives and two
  internal hard disk drives and/or tape/disk cartridge systems. These
  devices can be 3 1/2 inch and/or 5 1/4 inch, and they can be
  high-capacity or standard-capacity.
  As you plan the configuration of your disk drive system, consider 
  that 3 1/2 inch drives will be positioned on the drive platform, and 
  5 1/4 inch drives will be positioned in the drive tower. (You can 
  position 3 1/2 inch drives in the drive tower, using a 5 1/4 inch 
  adapter) This positioning includes both floppy drives and hard drives.

 INSTALLING A 3 1/2 INCH DRIVE
 1. Adjust the selector switches and terminating resistors on the
    drives as necessary.
 2. If you are installing a diskette drive, remove the  plastic
    insert from the front of the computer's cover.
 3. Select the appropriate mounting holes for your drive.  Mount the
    drive on the system's drive platform, using the screws provided
    with this computer.
 4. Connect the appropriate cables.

 INSTALLING A 5 1/4 INCH DRIVE

        1. Adjust the selector switches and terminating resistors
           on the drives as necessary.
        2. If you are mounting a diskette drive, remove the
           appropriate plastic panel from the computer's cover.
           (The upper panel is held in place by two screws and
           can be replaced later if necessary; the lower panel
           breaks away and is not replaceable.
        3. Remove the drive rails from the selected drive slot
           by pressing the drive rails latch tabs toward each
           other and sliding the rails out of the tower.
        4. Mount the rails onto the sides of the drive, using
           the appropriate holes. (A metal grounding clip must
           be attached to each rail when the rails are mounted
           on any drive.)
        5. Slide the drive into the drive tower until the rails
           lock into place.
        6. Make the appropriate connections to your disk drive.