Maintenance and Service Guide  4-13
Addendum 108431-001 (11-88) to 
Manual No. 108033-003
Enhanced Display Characteristics
The Enhanced Display Characteristics selection 
verifies the ability of the video display controller 
and monitor to display certain attributes: normal 
and high intensities; blinking; inverted video; 
and shades of red, blue, green, and gray. A dis-
play similar to Screen 8 appears on the monitor.
Screen 8.
640 x 200 Color Graphics
The 640 x 200 Color Graphics selection verifies 
that the system can operate in the 640 x 200 
color graphics mode, displaying 16 different 
colors. A display similar to Screen 9 appears on 
the monitor.
Screen 9.