Atari 2600 Field Service Manual page 68

Audio Test Procedure (Continued)
Are the two
I
patterns in
Figure 4-9
alternating on
the
screen?
Pg.
4-28
I
Yes Pn.
4-24
D o
the
patterns
alternate with
the tones?
1
yes
I
Are both colors
and tones con-
sisten
t each
cycle?
I
Yes
1 -
Put switches
back
to
initialized
positions.
b
VCS will go
through o m last
cycle before changing
to color bar test.
Pg.
4-30
A
J
2600/2600A Domestic V C S
Changed per
ECN #0021
1/29/83
b
I
Are patterns
now
correct?
(As in
Figure 4-9)
No
Swapout
I ) A201
2) A200
3) A202
I