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Hitachi MP-1802 Technical Manual page 12

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P i n
N o .
S i g n a l
D a t a D i r e c t i o n
I n s i d e
c +
M D D
E x p l a n a t i o n
2 0
s-m
M o v e s t h e
h e a d o n e
t r a c k
p e r
p u l s e
2 1
GND
<-----€
G R O U N D
2 2
W R I T E D A T A
W r i t e
d a t a s i g .
t o
t h e d i s k
23
GND
4
G R O U N D
2/+
WRT TE GATE
W h e n f r L r r , e n a b l e
w r i t e
2 5
GND
c---------)
GRO UN D
2 6
T R A C K O O
-------'
B e c o m e s f r L r f w h e n
h e a d i s
i n t r a c k
0 0 p o s i t i o n
2 7
cNl
GROUND
2 B
W R I T E P R O T E C T
B e e o m e s l r L l l w h e n
w r i t e
p r o t e c t e d
d i s l
i s
i n s e r t e d
2 g
GND
-
G R O U N D
3 0
R E A D D A T A
R e a d d a t a s i g . f r o m
t h e d i - s k .
3 1
GND
<__--------)
G R O U N D
3 2
SI DE.T
S e l e e t
s i d e t h e a d
w h e n f r L r t r s i d e 0 h e a c
w h e n
f r H i l
3 3
GND
<___--+
G R O U N D
3lr
t r - - r r = u n u s e d t e r m i n a l
. . . / 1 0

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Mp-3550