Atari CX 5200 Field Service Manual page 83

Keyboard Troub leshoot in g (cont.)
Are signals missing on
U 9 and/or U 1 1 only ?
CX5200 Field Service M anual
E 5
Yes
No
Replace
U 5
If you are servicing a unit containing
PCB CA020 1 08 , chip designators have
been changed from U to A .
4-26
Swapout
1 ) U27
2) U9
3) U l l
***NO TE ***