Atari 2600

Gray Bars Test Procedure
Place color/
black & white
switch in BhW
. posit ion.
Did screen pattern
change when switch
was moved ?
Is proper gray
bar pattern
present? (See
Figure 4-4).
Pg. 4-7
Is a partial
segment missing
or is any color
pg. 4-45
present? (See
Figure 4-51
2600/2600A Domestic VC