Atari CX 5200 Field Service Manual page 88

BLACK SCREEN TROUBLESHOOTING
(Continued)
IC
# +5
Gnd
A1
1
8
A2
8 1,21
A3
21
1
A5 27
3
A6
16
8
A7
17
1
A8
24 12
A9
16
8
A10
16
8
All 16
8
A14
14
7
A15
14 7
A16
16
8
A17
16
8
A18
8
16
A19
8
16
A20
8
16
A21
8
16
A22
8
16
A23
8
16
A24
8
16
A25
8
16
A27
14 7
Note:
Some
5200
2-port boards have pins 1,8,9,10 and
11
of
A7
jumpered
together on the solder side of the
PCB.
Future PCB's
will
incorporate
this
jumper.
Do
not
add these jumpers to the 5200 2-port board.
CX5200
Field Service
Manual
4
A-4