Canon PC740 Service Manual - Page 173
Controller, Circuit, Diagram
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P8 PB P8 P8 PB PEl Pe S_OUT 0102 +5V k __21 SIN 210s S_CLK +5 0104 0103 P4 P A A A 5 • P3 / 8 P1 F13-1811 COPYRIGHT © 1994 CANON INC. CANON PC7201740IT50/T/0 REV.0 AUG.1994 PRINTEDIN JAPAN (IMPRIMAEU JAPON) A - 5
D.
DC
CONTROLLER
CIRCUIT
DIAGRAM
DC
controller
Circuit
Diagram
(1/8)
+5V
SIN
P8<7>
PB<6>
P8<5>
P8<4>
PB<3>
PEl<2>
Pe<o>
S_OUT
0102
k
__21
210s
S_CLK
+5
0103
0104
P4<8.
.057
PA<7>
[PAL
7
_SL1
+5V
•
t
NF101
3.
1
7
/
P8<1>
PB<3
0>
a
a
4/
N
g
‘:1
,S
-
0
0
a
o¢
a
4
as
v
m
5.
.0
cr*/rrr
8/
C191
aata,..12grAilS'i;ST
,/,',221:.22ii3iEiiEWEN7ZE6IL„.
2
P60
3
P01
•.L
4
962
5
2
53
7
-PO5
L-9
C104
P3<7.
.0>
1
2-P90
13
y91
ROSA
63
14
P92
511.4
62
15
P93
P1141-
61
16
0
94
MA2_-
1
7
P95
P61
59
18
A.
P60
56
9
P.
vas
1636
+5V
74
73
72
7
70
69
MOO
P66
P65
P64
C192
P63
P7<0>
P7<1>
P7<2>
P7<3>
•
6<5
•
•
XTAL
67
R270
10
J1260a
EXT._
66
y..
1
66
C103
2
""
0101
.64
0102
851
RRI
>
V
zl
20
P42
P53
56
21_P43
p52
55
P5<2>
4
312
22
vaa
P5<
>
P21
54
23
p44
P5
2
0
7
53
20
.
24
P45
p
25
p46
P26
5
Oit'Zitft'
,N
ZZ:iZZZMAltfli!
4Z're,12gfVA
8
/
•
P1<7.
.0>
P5<3>
[£O_BUCKI
CP11
0
P5<0>
IsreVcr
, 0
F13-1811
P7<5>
P7<6>
P7<7>
6
27
0105
+5
,
/
P6<0>
1
7
6.<1>
6<2>
P6<3>
6<4>
P6.<6>
U
rig
P8<
>
P
<0>
A<1>
A<1>
A<3>
5<4>
+5V
+5V
0
CLR
COPYRIGHT
©
1994
CANON
INC.
CANON
PC7201740IT50/T/0
REV.0
AUG.1994
PRINTED
IN
JAPAN
(IMPRIME
AU
JAPON)
A
-
5