Bally 5000 Plus, Manual

Page: 191 / 388

C i r cu i t Descr i pt i on ( cont ' d )
W i t h t he WP s i gna l a t p i n 1 1 . t he
i nput d a t a p r e s e n t i s l a t c h e d t o
t he out pu t d a t a . T h e ou t pu t
s i g na l s a r e a c t i ve H I GH .
T h e d a t a r ema i ns l a t ch e d unt i I a
r e s e t o r a no t h e r WP s i gna l i s sen t .
T h e a c t i ve
H I GH
ou t pu t s i g na l t u r ns
ON t h e b a s e o f t he t r an s i s t o r
d r i ve r ( A ) wh i c h t h en t u r ns O N t h e
e x t e r n a l l oa d .
B6
B 5
B 3
T r a n s i s t o r D r i ve r
A6
A2 & A 3
A4 & A5
4 . I /O BOARD
NOT E S
OUTPUT ( 2 4 VDC ) PORT D I AGRAM
8 .
PO R T
2 A
..
I'- '-D ! �
I�
13
\
14
U L N 2 B I 3
A 6
1,2 3,4 �,6 1,8
RP
RP ,
RPe
10
RP )
R
P
2
)
R P 3
19 16 I�
12 9
6 �
2
PORT 4
ULN 2 8 1 3
A S
:� :� :�
II
�
1 .2 3,4
�,6 1,8
ULN 2 8 1 3
A 4
P O R T 5
:� :� :;
II
�
1 , 2 3.�
5,6 7,8
U L
�
�
8 1 3
1,2
',4 5,6
1,8
1.2
3 ,4 �,6
7,8
R R P
I
RP
2 R P
I
R P2
I
6
R P
I
R PZ I
8
R P '
R P 3
I 10
R
P
3
I
6
R P
I
R P 3 I 4
RP 3
I 2 RP I
19 16
15
12
9
6
5
2 19
If" I�
Ii: � 6 5
2
F i g .
4 - 9
4 - 2 3