Internal Trackball (250-3545)          Install          Faxback Doc. # 2252

Safety Warning!

Whenever you open up your system, you expose the components to the
possibility of electrostatic hazards. Below are some precautions to reduce
this hazard:

1)  Do not carry out installations in areas which are known to have
    electro static problems, for example, some kinds of carpets and rugs 
    are prone to electrostatic build-up.

2)  Handle new cards and components as little as possible, and hold all
    circuit boards by the edges.

3)  Remain in the work area until the installation is complete and the
    system has been closed up.

4)  Finally, and most important, do not attempt to do any kind of work to
    the system's interior until all power supplies have been switched off &
    cables disconnected. Don't forget to remove the internal battery.

┌──────────────────────────────────────────────────────────────────┐
│Trackball Installation on Systems Without the Internal Modem Card:│
└──────────────────────────────────────────────────────────────────┘
1)  Remove the outer and inner cover of the expansion compartment.

2)  A 4-pin to 14-pin cable is included with your trackball. Connect the
    4-pin end to the trackball's 4-pin connector and the 14-pin end to the
    modem's 14-pin connector on the motherboard. Notice that both the
    pinholes and the pins are aligned on one side of the connector. Match
    the pinholes to the pins. Pins and pinholes will not coincide if not
    connected correctly.

3)  Install the trackball in the space occupied by the inner cover.

4)  Replace the outer cover.

┌─────────────────────────────────────────────────────────────────────┐
│Trackball Installation on Systems With Installed Internal Modem Card:│
└─────────────────────────────────────────────────────────────────────┘
1)  Remove the outer and inner cover of the expansion compartment.

2)  To access more space, lift the modem card from the expansion 
    compartment but do not disconnect its cable from the motherboard.

3)  A 4-pin to 4-pin cable was included with your modem. Use this cable and
    connect one end to the 4-pin connector on the trackball. Then connect
    the other end to the 4-pin connector found on the right edge of the
    modem card.

4)  Replace the modem.

5)  Install the trackball in the space occupied by the inner cover.

6)  Replace the outer cover.

Notes:

1)  The mouse driver, included in your system's Support Diskette, should be
    installed to make the trackball functional. The following is the
    "Read Me" file on the 4800/4860 Utility Diskette. This file provides
    detailed instructions on how to install the mouse driver.

                Installing the Mouse Driver
        
        The mouse driver will support 2-button and 3-button
        mice, and also the Notebook trackball. For portable
        systems which use an LCD, there is an enhanced cursor
        option which will enlarge the mouse pointer.

        Execute the Install file by keying in "Install". The 
        program will suggest placing the mouse files in a 
        "Mouse" directory on your hard disk. The program then
        offers several options:

               1. View the README file
               2. Install the mouse Driver and Tutorial
               3. Setup automatic Mouse Support
               4. Run the mouse Tutorial
               5. Quit the Mouse Installation

       Option 2 will copy the mouse files to your hard disk. 
       Option 3 will copy the files, and also amend your
       AUTOEXEC.BAT file so that the mouse driver is loaded
       each time the system is powered on.

2)  Keep the inner cover in case you need to remove the trackball in the
    future.

(/tmc-07/13/95)