Atari 2600

DIAGNOSTIC MATRIX TEST
Puroose: To test the proper function of the Input-Output ports of the VCS
unit.
Format: Set all switches to the initialized position, then move the Left
Difficulty switch to the
"8" position. The test is performed in two parts:
1. With the blue shorting plugs removed, the matrix of nine rectangles
on the screen should look like Figure
3-10.
2.
The shorting plugs are then inserted and the pattern should look like
Figure
3-1 1.
3.
Press the CAME SELECT switch. If the switch is properly
functionins, that area sf the matrix will black out. Release the
GAME SELECT switch and repeat the
RESET switch.
The Ciatrix jumps once every second.
procedure with the
GAVE
Plnk a Green
Not used
Came
kkct
hitch
a, ;o'
CIma
Rc¶et
Svltch
Gr un
Not Und
Figure 3-1 0. Diagnostic Matrix Screen
(Shorting Plugs
OUT)
2600/2600A Domestic VCS