WY99GT INSTALLATION INSTRUCTIONS


Directions to change firmware in the 99GT display terminal:

1.      Unplug the power cord from the terminal and turn the rear of the
        terminal toward you (see illustration).

2.      Remove the 2 logic board screws from the rear panel.

3.      Slide the logic board out until two firmware ICs are exposed (it is not
        necessary to slide the logic board out the entire way).

4.      Using a small flat blade screwdriver, carefully pry out present
        firmware in locations 3D and 11D.

o       Be careful when positioning the screwdriver as not to damage the IC
        socket.

5.      Install new firmware:

o       P/N 250624-01 program in location 3D.

o       P/N 250622-01 graphics in location 11D.

   Note:  Be sure notch on the chip is going the same direction as the
          other chips.

           ____________________________________________
         /             ___________                     |
       /              |___________|                    |
      |                ________                      __|__
      |               | 11 D   |                    |     |
      |               |________|                    |     |
      |                ______                       |_____|
      |               |______|                         |
      |                ______                          |
      |               |______|                         |
      |                ________                        |
      |               |________|                       |
      |                ________                        |
      |               |________|                       |
      |                ________                      __|__
      |               | 3 D    |                    |     |
      |               |________|                    |     |
      |                ________   ________          |_____|
      |               |________| |________|            |
      |                                                |
      |                                                |
      |________________________________________________|

               View from Component Side of Board



o       Verify that the IC direction is correct.  The "notch" on the end of the
        chip should be positioned towards the front of the logic board (look
        at the other IC's on the board, they are all pointing toward the
        front, too).

o       Watch to see that all the IC pins push into the socket and do not
        bend over.

6.      Slide the logic board back into the unit; fasten the logic board screws.

7.      Hook up keyboard and power connections


WY99GT "G-Key" RESET INSTRUCTIONS


Please be sure to reset the terminal after installation of firmware chips as
follows:

1.      Turn the terminal off, and remove the cabling from the Auxiliary and
        Modem ports.

2.      Hold down the "G" key on the terminal keyboard while booting up.  (You
        must keep holding the "G" key down throughout the power up sequence).

3.      Wait for the terminal to finish its screen diagnostic during the power
        up sequence.  You can tell when this is over when you see that the
        screen stops flashing.  The status line may appear after a few seconds.

4.      Release the "G" key and go into setup:  (Shift-SetUp.) or (Shift-Select)
        or (F4).

5.      Default all setup parameters by highlighting "DEFAULT ALL":
        (Enter the right arrow key three times) and then the F10 key.
        (Enter F10 again to EXIT or you may change the terminal settings at
        this time.

        Occasionally the terminal's personality parameter will "disappear".
        Repeating step 5 several times should correct this.


*       The key sequence to get into SETUP will vary depending on the keyboard
        type.



=-=-=-=-=-=-=-=-=-=-=-=-=   DISCLAIMER   =-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  This information is intended to inform WYSE personnel and WYSE
  customers of certain issues in a timely fashion. The information
  has not been extensively verified or tested. WYSE does not warrant
  the information to be correct, although reasonable effort has been
  taken to prevent gross inaccuracies. WYSE publishes formal technical
  communiques in the form of Product Bulletins and warrants the data
  in Product Bulletins to be accurate at the time of the release.