8-bit SmartDrive Adapter  (250-1088)      Settings      Faxback Doc. # 2033

┌────────────────────────────────────────────────────────────────────────┐
│ The best choice of Adapter for the 3000/4000 series computers would be │
│ the 25-4121.                                                           │
└────────────────────────────────────────────────────────────────────────┘

SMARTDRIVE INTERFACE BOARD JUMPERS

If required, set the Interface Board jumpers.

To select this          Install Jumpers on
BIOS Address      Pins 1 and 2    Pins 3 and 4

C8000-CBFFF            No             No
(As shipped)                                      ┌────────┐
                                                  │3 o  o 4│
D8000-DBFFF            No             Yes         │        │
                                                  │1 o  o 2│
D0000-D3FFF            Yes            No          └────────┘

E0000-E3FFF            Yes            Yes


TANDY SMARTDRIVE JUMPER SETTINGS

20MB SmartDrive Jumpers

Set the drive configuration jumpers as illustrated below.

                1   2   3
              ┌───────────┐
              │ x   o   o │
              │           │
              │ x   o   o │     (x indicating the two pins to install
              └───────────┘      the jumper on)

20 MB SMARTDRIVE MOUNTING

1. Screw the four hexagonal extenders to the bottom of the hard drive in the
   indicated locations.

2. Place the drive in the drive frame as illustrated and fasten it, using four
   small flat-head screws.

40 MB SMARTDRIVE JUMPERS

There are two different configurations for the 40 MB SmartDrive: 12 and 18-pin
jumper blocks. Verify which configuration you have.

40 MB SMARTDRIVE: 12-PIN JUMPER BLOCK

Set the drive configuration jumper as illustrated below.


               1   2   3   4   5   6
             ┌────────────────────────┐
             │┌─┐     ┌─┐ ┌─┐         │
             ││x│  o  │x│ │x│  o   o  │
             ││ │     │ │ │ │         │
             ││ │     │ │ │ │┌───────┐│
             ││x│  o  │x│ │x││ x   x ││
             │└─┘     └─┘ └─┘└───────┘│
             └────────────────────────┘

40 MB SMARTDRIVE: 18-PIN JUMPER BLOCK

Set the drive configuration jumpers as illustrated below.


               1   2   3   4   5   6   7   8   9
             ┌───────────────────────────────────┐
             │    ┌─┐         ┌─┐ ┌─┐     ┌─┐    │
             │ o  │x│  o   o  │x│ │x│  o  │x│  o │
             │    │ │         │ │ │ │     │ │    │
             │ o  │x│  o   o  │x│ │x│  o  │x│  o │
             │    └─┘         └─┘ └─┘     └─┘    │
             └───────────────────────────────────┘