Atari CX - Anyvideo Screen; Gray Bar Screen

Figure 3-2. Gray Bar Screen
Diagnostic Flowchart Entry Point: Pg. 4-16.
ANYVIDEO SCREEN
0 Purpose:
To test the video generation of the
GTIA and ANTIC chips.
0
Format:
The screen should have a black background with eight vertical
bars. Half of the vertical bars should be narrow, and the other half much
wider.
A horizontal bar should appear across the top of the screen. From
left to right, the shade of color on the horizontal bar should change.
On
the right of the bar, two Vs should be displayed, right side up.
CX5200 Field Service Manual