Atari CX - Page 42

NOTE: Figure 3-3 is a black and white representation of a colored screen.
Figure
3-3. Any Video Test Screen
If the Any Video test fails, swapout U3, U5.
POKEY ADJUST
0
Purpose: To check the value of the pot line for the controller ports.
0 Format: Adjust R132 to make the value
in Port 1, HOR position read 112
+ 1. All other values should read between 100 and 124.
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CX5200 Field Service Manual