Atari 2600

Gem
Not Urd
Figure 4-6. Diagnostic Matrix Screen
(Shorting Plugs OUT)
The Diagnostic Matrix Screen appears as above, on a black background, when the
shorting plugs are not inserted. The three left rectangles and the
blue/black grid
joinin them indicate the status
of the 110 line connections to the 6532 RAM chip
(A2028.
2600/2600A Domestic VCS