Anyvideo Screen; Gray Bar Screen - Atari CX 5200 Field Service Manual

Figure 3-2.
Gray Bar Screen
Diagnostic
Flowchart Entry
Point: Pg. 4-16.
ANYVIDEO SCREEN
•
Purpose: To
test the
video generation of
the
GTIA
and
ANTIC
chips.
•
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 3-6