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KM-4230
Service manual
Operation Unit Main Pcb 1/2 - Kyocera Mita KM-4230 Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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E
A
A
E
2A3/4
Operation unit main PCB
A
1
S
2
28
Vcc
_OE
_CE
_WE
14
GND
S G
O0
11
I/O0
O1
12
I/O1
O2
13
I/O2
O3
15
I/O3
O4
16
I/O4
3
O5
17
I/O5
O6
18
I/O6
O7
19
I/O7
A10
A11
A12
A13
A14
4
5
5 V
CN1-9
LCD. REM
CN1-14
XSCL
CN1-10
6
LP
CN1-11
DIN
CN1-12
XD0
CN1-6
7
XD1
CN1-5
XD2
CN1-4
XD3
CN1-3
G (5 V)
CN1-8
8
NC
CN1-13
A
3-7-16
3-7-42
E
A
E
A
E
A
2
/
2
B
C
D
S
22
S G
20
27
10
VA0
A0
9
VA1
A1
8
VA2
A2
RA9
7
VA3
VA4
A3
VA4
6
VA4
VA5
51
A4
VA5
5
VA5
VA6
52
A5
VA6
4
VA6
VA7
53
A6
VA7
3
VA7
VA8
54
A7
VA8
25
VA8
VA9
55
A8
VA9
24
VA9
VA10
56
A9
VA10
21
VA10
VA11
57
VA11
23
VA11
VA12
58
VA12
2
VA12
VA13
59
VA13
26
VA13
VA14
60
VA14
1
VA14
61
VA15
62
RA11
_VCS4
63
_VCS3
64
_VCS2
65
IC11
_VCS1
66
RA12
_VCS0
O0
67
VD0
O1
68
VD1
O2
69
VD2
O3
70
VD3
O4
71
VD4
O5
72
VD5
O6
73
VD6
O7
74
VD7
S
75
VD8
RA13
76
VD9
L43
C42
77
VD10
78
Vdd
+
79
Vss
80
Vdd
C43 C29
S
G
L45
S
S
R128
1
R134
3
IC17
2
R131
4
R137
6
IC17
5
R130
9
R136
8
IC17
10
R129
12
R135
11
IC17
13
R133
4
R139
6
IC17
5
R132
9
R138
8
IC17
10
R172
12
R174
11
IC17
13
R171
1
R173
3
IC17
2
L46
S G
B
C
D
E
A
E
F
10
9
D_BUS
24 V
CN5-4
A_BUS
G (24 V)
CN5-1
5.1 V
CN5-3
D0
DB0
30
A15
AB15
G (5 V)
CN5-2
29
A14
AB14
28
A13
AB13
27
A12
S
AB12
26
A11
AB11
25
A10
AB10
24
A9
AB9
23
A8
AB8
22
A7
AB7
21
A6
AB6
20
A5
AB5
+
19
A4
AB4
18
A3
C26
AB3
17
A2
AB2
16
A1
AB1
15
A0
AB0
14
S
_BHE
R103
S
S G
13
MPUSEL
R104
S
12
RESET
HRESET
11
MPUCLK
MPUCLK
10
READY
_READY
VEE(
–
23 V)
CN1-2
9
R105
_MEMRD
8
_MEMWR
–
23 V
CN1-7
7
_MEMCS
6
_IORD
5
_IOWR
VLCD
CN1-1
4
_IOCS
3
Vdd
2
S
S
Vss
1
Vdd
S
S G
14
Vcc
F02
GND
7
_LCD
_WR _RD _VRAM
S G
E
F
G
H
I
10
S
S
S G
S G
9
L17
+
C11
L20
P G
FUSE1
L18
S
+
C14
L19
S G
9
1
CN2-1
24 V
Vin
+
Filter
L22
8
2
–
_Control
Vout
CN2-2
23 V
IC8
3
Vset
C25
R78
7
4
–
Vin
GND
S G
CN2-3
G (24 V)
P G
CN2-4
CNT. VR
14
14
14
14
14
14
14
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
F08
F138
F32
F32
F32
F32
F74
GND
GND
GND
GND
GND
GND
GND
7
7
7
7
7
7
7
G
H
I
A
E
A
E
J
1
2
3
4
5
S
6
14
14
Vcc
Vcc
HC14
LS07
GND
GND
7
7
7
8
J
E
A
KM-4230/5230 (MCE)
A
E
Table of
Contents
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Table of Contents
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Km-5230
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