Canon Cat Repair Manual page 44

3-1. JLFDD Unit
(2) Circuit diagram
6
D WRITE GATE
SELECT 0
SELECT 1
STEP
c
DIRECTION IN
Jl
r-
5
MOTOR ON III
K1
READY 2~
-~~:±tL==~============~KO
( R11
~~----------~O.
BI
TRACK 00 16
WRITE
PROTECT
17 se
INDEX
110'
READ DATA 18
i
AI
+12V
+12V
+5V
+5V
GND
GND
GND
FG
6 5
4 3
'2: O.lu
R6f£-
02 ~.
R5
r
05
~
07 40
so
24
R9 15
T
II
r
4 3
l
IC2
""El
W.DATA
~WOGATE
1
JO E.GATE
}4
HHVACONT
27 W _ CURRENT
2
EOUT
l ,
1
0
-
HOA
R27 02-1 J4
~ 1~.3K--I,,' ~
I
L
~ :l~-J
5
1 ' : 1 : 14
HOB
I
1
'2 :
I:
13
COMO I:
HIA 114
H1B r' 5
COM! 20
POWER ON 32
' l si
I I
..coop
I I
-=-
I L_-,
I
L _ _ ....J
D2-2
C13 LJ
CHK2
o~
PREQUT
A~'
1 I
C14 L4 C15
5 O.lp 560p. 270p CHKI
PREOUT B
DIFIN B
I
"'--~~--~---t~
DIFIN A [j4L .... '"'-__
R29 L5 C16
~ '
470 lOOp. 1500p
DIFCONS B
1
DIFCONS A
f L - - - - - - - - '
ell
DIFOUT A
DIFOUT B e12
COHIN A a.l}l
COMIN B
1"-' _ _ _ -'
N.C IT
H.C 39
D
c
B
A
3-15