VT100 Video Monitor Adjustments (Elston)

     The following paragraphs describe the alignment of the Elston video 
monitor.  The Elston monitor is easily identified by the placement of the
flyback transformer.  In the Elston monitor the transformer is located on 
the monitor sideplate opposite the monitor board.  In addition, the connector
card is not present on the Elston CRT yoke assembly.

All adjustments must be made under the following conditions:

     1.  Normal video mode (white characters on a dark background)

     2.  80 characters per line mode

     3.  ANSI compatible mode

     4.  LOCAL mode

BRIGHTNESS - Use the following procedure to adjust the brightness control
             on the monitor board.

     1.  Allow the terminal to warm up for at least five minutes.

     2.  Increase the screen brightness to the maximum level by pressing the
         (^) UP-ARROW key in SET-UP mode.  Keep pressing until there is no
         further increase in brightness.

     3.  Remove the terminal top cover.

     4.  Adjust R109 until the display raster is visible.  Then back off on 
         the adjustment until the raster disappears.

     5.  Replace the terminal top cover.

     6.  Restore the screen brightness to normal intensity by pressing the
         DOWN-ARROW key in SET-UP mode.

FOCUS - Use the following procedure to check and adjust focus.

     1.  Type the following sequence.  "ESC#8" (Escape, pound sign, eight keys)

     2.  Examine the characters at the four corners and center of the screen.
         The individual dots in the vertical segment of the "E" should be 
         visible in each character.
                                      NOTE:
                     In some cases the operator may want the focus
                     misadjusted to suit personal preference.
         If the focus is adjusted correctly, don't perform the following steps.

     3.  Remove the terminal top cover.

     4.  Adjust R477 for the best overall character presentation.

     5.  Adjust the focus rings furthest from the yoke for the best focus
         at all four corners.  Readjust R477 if needed.

     6.  Replace the terminal top cover if no further adjustments are required.

YOKE ROTATION - Use the following procedure to check and adjust the yoke.

     1.  Type the following sequence.  "ESC#8" (Escape, pound sign, eight keys)

     2.  With the top cover still on the terminal, place the VT100 alignment
         template (part number 94-0322-03) on the screen.