Atari CX User Manual

NOTE: This figure is a black and white representation of a color television screen.
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REFERENCE BAR
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Figure 3-1 Color Bars Screen
Diagnostic Flowchart Entry Point: Pg*
4-1 4.
GRAY BAR TEST
Purpose: To test the function of the luminescence lines (LMO , LM1, LM2)
from the GTIA chip.
0
Format: Eight horizontal gray bars are displayed, going from black at the
top to white
at the bottom in even steps (see Figure 3-2). The screen
should be steady and unchanging. These lines may have minor glitches on
their edges.
A thin white line always appears just over the top (black)
bar.
No color should appear anywhere on the screen. The areas above the
top (black) bar and below the bottom (white) bar are of no importance to
the
test. This test should be left on for at least ten seconds to ensure
that there is no "flashing" of
any color or shifting of the gray bars.
CX5200 Field Service Manual

Atari CX Specifications

General

Brand	Atari
Model	CX
Category	Home Theater System
Language	English