Bally 5000 Plus, Manual

Page: 216 / 388

4 . I /O BOARD
I /O BOARD SCHEMAT I C
W-1 299-5 ( R EV
D )
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t
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NOTES :
1.
ALL R E S I STORS 1 0 K Ohms U N LE S S
OTHERWISE NOTED
PORT
4
PORT
5
4-48
2 . AST E R IS K
1*1
I N D I CATES A S I GNAL THAT I S ROUTED
TO TWO Di ffERENT CONNECTOR LOCAT I O N S .
RP 1 7 - RP19
'
0
'6 2 15
3 I.
4 13
5 12
6
I I
7 .,.,.,. 10
8 9
RESISTOR
PACK
470(3)
74 HC32
OS 1
G 2
6
CSI
CS3
WP4
F I
2
10
F4
A I WPI2
6
CSI
I/O 0
TACK
WP5
F 2
WP9
F I
12
14HC I 3B
CSI
19 74HC688
B3
B2 7
F 3
Al
.
15 14 13
12 I I
10
I
2 3 4 5
6
7
B6
8
F5
4
F5
2
F5
12
G5
10
G5
8
G5
A 1
I
g
'6
§
MAD
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•
1 1 0 8
13
5 12
6 "
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0 1
I
g
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M A D
:�
•
1 1 08
13
5 12
6 "
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U
E 1
I g'6
§
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4
1 1 08
13
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B4
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a: � CL � CL CL
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G 1 F l F 5
FO-5000-1 ( Rev A )
G 5 G3 G4
:� :� :� I'�
',2 3, 5,6
7,8
A 4
',2 3,
5,6
7,B
U L N 2 8 ( 3
A 2
1,2 3,4 5,6 7,8
R P2
I
6
R P I
RP2 I
8
RP I
R
p
3
I
10
R P 2
"P 3 I
• 6
R P
I
RP3
I
RP1
RP3
I
2
RP1 2
19 16 15 12 9
6
5 2 19
16
15 12 9
6 5 2
I
8 5
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� �
RST
a a 0 a 0 0
0 a
18
17 14 13 8 7 4 3
RP16
•
70
(8)
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ot:t .-
Q: a:: a:
Q..
G2 F 2
I
9
RP15
(8 )
F 3
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....
� If') N _ 0
0 0 0 0 0 0 0 0
F4
To PORTS 6 8 a
N
.., .., .., .., .., ..,
� ! � � :: 2 � 8
0 0 0 0 0 0 0 0
-l ...J
-'
...J ...J ...J ...J ...J
a: a:: a: a::: a: a::: a::: a:::
RP,2
(8)
0 2
10
9 8 7 6 5 4 5 2
on .
SEL 2 ;; ;;
E 5
14 H C 2 4 5
I I
12 13 14 15
, ,
,,'
WRITE
03 0 4