Disk Cartridge Interface  (260-6018)      Install     Faxback Doc. # 5180

1.  Turn off the power to all peripherals and the computer. Disconnect the
    power cords of the peripherals and computer from the outlets.

2.  Remove the access panel by loosening and removing the screws and then
    sliding the panel down and lifting it away from the computer.

3.  Loosen the wiring harness running downward along the back of the boards
    by sliding the harness from under the plastic retaining clamp at the bot-
    tom.  Exercise caution so that the glued connection does not come unglued
    (or otherwise broken). If the connection comes unglued, it must be re-
    glued.

4.  Loosen and remove the 2 wires connected to the RH PCB retainer (in later
    versions the wires are connected to the card cage lower retainer brac-
    ket).  Remove the screws attaching the PCB retainers to the card cage.

5.  Insert the interface board (with the component side up and the card edge
    connection for the mother board forward) into the grooves of the first
    card slot above what is currently the last board in the daisy chain (the
    necessarily continuous sequence of interrupt driven boards). This daisy
    chain consists of the hard drive controller board, the multiuser board,
    and the ARCNET board. This now makes the interface board the last board
    (up from the bottom) in the interrupt daisy chain. Press firmly on the
    back edge of the board to fully engage it in the mother board connector.
    The rear edge of this board must align with the rear edge of the other
    boards in the computer.

6.  Reattach the PCB retainers to the card cage. Reattach the 2 wires to the
    RH PCB retainer (or in later versions the card cage lower retainer brac-
    ket).

7.  Reattach the wiring harness running downward along the back of the boards
    by sliding the harness under the plastic retaining clamp at the bottom.
    Exercise caution so that the glued connection does not come unglued (or
    otherwise broken). If the connection comes unglued, it must be reglued.

8.  Attach the keyed connector on one end of the 50-pin disk drive cable to
    the keyed card edge connector on the interface P.C. board. Be sure the
    keyed portions are properly connected.

9.  Remove the strain relief bracket nearest to the cable  from the access
    panel. Run the cable downward through the "strain relief," leaving about
    8 inches of cable between the strain relief and the computer.

10. Reattach the strain relief bracket, and run the cable through the notch
    in the computer base.

11. Reattach the access panel and tighten the screws.

12. Attach the other end of the keyed 50-pin disk drive interface cable to
    the keyed connector on the back of the cartridge disk drive.

13. Attach the power cords to each of the peripherals (including the Tandy
    Disk Cartridge System) and plug the cords into grounded electrical out-
    lets.

After having read the Owner's Manual, you will be able to format your Tandy
Disk Cartridge System and install the drivers. See the Formatting and Driver
Installation instructions that accompany your Operating System software
package.

(css-08/03/93)