Atari 2600

AUDIO TONES TEST
Purpose:
To
test the function of the audio tone generation and modulation
circuitry.
0 Format: The VCS unit should be in the initialized mode. Move the Right
Difficulty switch to the
"8" position.
The
test displays two alternating
patterns on the screen (as shown in Figure
3-12) while two alternating
tones are heard.
The tones change in sync with the screen. This test
pattern continues for one full cycle after the Right Difficulty switch has
been returned to the initialized position.
Figure
3-12. Audio Tone Test Screens
2600/2600A Domestic VCS