Atari CX - Page 77

Keyboard Troubleshooting (cont.)
CX5200 Field Service Vanual
I
Swapout
1) UlO
2). U11
d L
Does Port 3 pass?
u
If you are servicing a unit containing
PCB CA020 108, chip designators have
been changed
from U to A.
I
Check capacitors &
resistors on Pins 1-8
of Port 3. Replace if
def
ec the.
J
I
-h