Atari 2600

2600A Gray Bars Test Procedure
Place color/
black & white
switch
in B&W
posit ion.
I
Did screen pattern
change when switch Pg. 6-8
was moved ?
Yes
L
Is proper gray
bar pattern Pg. 6-13
present? (See
Figure 4-4).
Is a partial
segment missing
or is any color
Pg. 4-45
present? (See
- Figure 4-51
Pg. 6-14 or 6-15
M - 2600A Revs. 1-13
N - 2600A Revs. 14 and up
2600/2600A Domestic VCS