![background image](http://html.mh-extra.com/html/canon/ph-72/ph-72_service-manual_62371030.webp)
A - 2
6
5
4
3
2
1
D
C
B
A
7
6
5
4
3
2
1
0
IC109
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
Vss
Vcc
A14
A13
A8
A9
A11
/OE/Vpp
A10
/CE
O7
O6
O5
O4
O3
7
4
6
5
0
1
3
2
7
6
5
4
3
0
1
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
+5V
IC109S
IC26-2806 GS4
C119
7
6
5
4
3
2
1
0
IC110
KM62256CLG-7L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
Vss
Vcc
/WE
A13
A8
A9
A11
/OE
A10
/CS
I/O7
I/O6
I/O5
I/O4
I/O3
6
4
5
0
1
3
2
7
6
5
4
3
0
1
2
+5V
C120
9
10
8
IC107
HC32
12
13
11
IC107
HC32
IC106
HC04
5
6
8
9
10
/WR
/RD
A<17..8>
(1,2A)
(1,2B)
(1,2B)
8
IC108
3
4
7
8
13
14
17
18
11
2
5
6
9
12
15
16
19
8D
7D
6D
5D
4D
3D
2D
1D
CK
8Q
7Q
6Q
5Q
4Q
3Q
2Q
1Q
CLR
1
HC273
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
IC106
HC04
9
8
(1,2B)
(1,2B)
ASTB
AD<7..0>
+5V
8
VCC
GND
IC108
HC273
VCC
GND
IC107
HC32
20
10
14
7
C118
C117
+5V
1
2
3
IC107
HC32
FG
JP103
0.3A
FG
JP102
0.3A
I. PAPER HANDLING CONTROLLER - 2/2
Summary of Contents for PH-72
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Page 7: ...CHAPTER 1 PRODUCT INFORMATION I FEATURES 1 1 II SPECIFICATIONS 1 2 III BASIC OPERATION 1 6 ...
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Page 23: ...CHAPTER 3 PARTS CATALOG I PAPER HANDLING CONTROLLER PCB ASSEMBLY 3 1 ...
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Page 27: ...APPENDIX I PAPER HANDLING CONTROLLER CIRCUIT DIAGRAM A 1 ...
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