Ricoh LDD280 Service Manual page 459

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1
2
3
A
Main Processing Unit
I/O Board
<<Body>>
Content
Level
No
4
Sensor:K
CN204-B4
Cathode
3
-B5
Sensor:A
Anode
Master End Sensor
2
Sensor:E
-B6
Emitter
:▲ 5V
1
Sensor:C
-B7
Receiver
6
1
3
CGND
CN112-A1
CGND
5
2
2
A4 Cam Sensor
A3/A4(A4)
:▲ 5V
-A2
SIG
(Blue)
4
3
1
+5V
-A3
+5V
B
3
4
3
CN112-A4
CGND
CGND
2
5
2
A3/A4(A3)
:▲ 5V
-A5
SIG
A3 Cam Sensor
1
6
1
-A6
+5V
+5V
3
1
1
CN112-A7
CGND
+5V
2
2
2
Sensor
:▲ 5V
-A8
SIG
Lower Wrapping Jam Sensor
1
3
3
-A9
CGND
+5V
C
2
1
(+)
CN220-A7
Motor (+)
:▲24V
DCM
1
2
(-)
Pressure Cam Shift Motor
Motor(-)
:▲24V
-A8
Ink Detection Board
<<Drum>>
D
No
Content
Level
10
1
1
1
Ink Pump Sensor
CN112-B1
9
2
2
2
Drum Size 0
-B2
8
3
3
3
Drum Size 1
-B3
7
4
4
4
-B4
Idling Roller HP SN
6
5
5
5
Ink Detection
-B5
5
6
6
6
Drum Shift HP SN
-B6
4
7
7
7
Ink Cartridge Set SW
-B7
3
8
8
8
-B8
Drum Shift-Pulse
2
9
9
9
Thermostat-Ink Temp
-B9
1
10
10
10
-B10
CGND
N.C
12
1
11
11
CN221-A1
E
+5V
11
2
12
12
Ink Pump Motor(+)
-A2
10
3
13
13
-A3
Idling Roller Motor(-)
9
4
14
14
Idling Roller Motor(+)
-A4
8
5
15
15
-A5
Drum shift Motor(+)
7
6
16
16
Drum shift Motor(-)
-A6
6
7
17
17
-A7
Ink Pump Motor(-)
5
8
18
18
OEM1
-A8
4
9
19
19
-A9
OEM2
3
10
20
20
CGND
-A10
2
11
21
21
-A11
-12V
1
12
22
22
-A12
N.C
N.C
F
4
1
4
1
4
1
4
CN113-B11
Ink Flow Sensor
3
2
3
2
3
2
3
Drum ID 0
-B12
2
3
2
3
2
3
2
-B13
Drum ID 1
1
4
1
4
1
4
1
Ink Detection-Pulse
-B14
3
Drum LED Red
CN204-B1
2
-B2
CN460
Drum LED Green
PCB:LED
1
+5V
-B3
<<Control Panel>>
G
12
OPSW
CN119-1
Control Panel
11
-2
+5VE
10
OPREQ
-3
9
CGND
-4
8
OPRXD
-5
7
OPRCLK
-6
PCB:LCDC:EMER
6
CGND
-7
ALD
5
OPTCLK
-8
4
OPTXD
-9
3
+5VOP
-10
2
+5VOP
-11
1
+24V_OP
-12
H
PGND
-13
N.C
<<Option>>
<<
>>
Content
Level
No
NO
DFMM1
:▲ 5V
CN214-A1
CN2-9
DFMM2
-A2
CN2-4
:▲ 5V
I
DFMPUL
:▲ 5V
-A3
CN2-5
DF Motor ON
-A4
CN2-3
:▲ 5V
DFCL
:▼24V
-A5
CN2-2
-A6
CN2-1
DFSOL
:▼24V
DFmotor conversion
:▲ 5V
-A7
CN1-4
-A8
CN1-8
DFmotor reset
:▼ 5V
VCE
-A9
CN4-10
-A10
CN4-9
VCE
VCC
-A11
CN3-1
-A12
CN2-12
VMM
VMM
-A13
CN2-11
-A14
CN2-10
VMM
J
-A15
-B1
CN3-10
Original Set Sensor
:▼ 5V
Feed Cover Open SN
:▼ 5V
-B2
CN3-9
-B3
CN4-4
Registration SN
:▲ 5V
Original Length SN1
:▲ 5V
-B4
CN3-8
-B5
CN3-4
Original Length SN2
:▲ 5V
Original Lengt SN1
:▼ 5V
-B6
CN4-5
-B7
CN4-3
Original Lengt SN2
:▼ 5V
Original Trailing SN
:▲ 5V
-B8
CN4-1
-B9
CN4-2
DFLEDCLK
:▲ 5V
Listup Detect
:▲ 5V
-B10
CN3-11
Installation Detect
:▼ 5V
-B11
CN1-10
CGND
-B12
CN4-12
K
CGND
-B13
CN4-11
PGND
-B14
CN3-2
PGND
-B15
CN3-3
L
4
5
6
CN901
CN902
3
1
3
A1
A1
CGND
2
2
2
A2
:▼ 5V
SIG
Ink Pump Sensor
1
3
1
A3
+5V
3
A4
CGND
2
A5
:▲ 5V
SIG
Drum Shift HP Sensor
1
+5V
A6
2
1
A7
:▼ 5V
2
1
2
1
Ink Cartridge Set Switch
A8
3
A9
CGND
2
SIG
A10
Drum Shift Sensor
1
A11
A11
+5V
B1
A12
2
1
B1
:▼24V
1
2
DCM
Ink Pump Motor
B2
2
2
2
1
B3
:▲24V
DC
1
3
1
2
Idling Roller Motor
B4
:▲24V
M
2
1
B5
:▲24V
1
2
DCM
Drum Shift Motor
B6
:▲24V
B7
B8
B9
3
B11
B10
+5V
2
B11
SIG
:▲ 5V
Ink Flow Sensor
1
B12
GND
CN904
-1
T7
Ink Detecting Pin
-2
GND
-3
T6
F.G
-1
Thermistor
CN903
-2
3
-1
GND
2
CN905
-2
:▲ 5V
SIG
Idling Roller HP Sensor
1
-3
+5V
4
3
Key Counter
1
(Option)
2
2
LCS(LCOT)
CN382
1
(Option)
7
8
9
10
<< PCB:ACU >>
No
Content
OPTCLK
- 1
CN1-1
CN2
- 2
- 2
OPRCLK
No
Terminal
No
- 3
- 3
OPREQ
1
GND
45
OPSW
- 4
- 4
2
XINTB
46
- 5
- 5
/PWRCTLO
3
GND
47
DFORG
- 6
- 6
4
N.C
48
- 7
- 7
PCSET
5
GND
49
/HT_ON_ACU
- 8
- 8
6
CLKRUN
50
- 9
- 9
CSSRXD
7
GND
51
CSSTXD
-10
-10
8
XRST
52
-11
-11
CSSCTS
9
GND
53
N.C
-12
-12
10
CLK_PCI
54
-13
-13
AEVD0
11
GND
55
AEVD2
-14
-14
12
XGNT
56
-15
-15
13
GND
57
AEVD4
AEVD5
-16
-16
14
XREQ
58
-17
-17
15
GND
59
AEVD7
16
_PME
60
GND
-18
-18
17
PCIAD31
61
-19
-19
XEFSNC
18
PCIAD30
62
AECLK
-20
-20
19
PCIAD29
63
-21
-21
GND
20
PCIAD28
64
XELSNC
-22
-22
21
PCIAD27
65
-23
-23
ADIR
22
PCIAD26
66
ACTXD
-24
-24
23
GND
67
-25
-25
ACTLK
24
PCIAD25
68
ACRCLK
-26
-26
25
PCIAD24
69
-27
-27
N.C
26
PCICMD3
70
PWRCTL1
-28
-28
27
GND
71
-29
-29
GND
28
IDSEL
72
-30
-30
GND
29
PCIAD23
73
-31
-31
OPTXD
30
PCIAD22
74
-32
-32
OPRXD
31
GND
75
GND
-33
-33
32
PCIAD21
76
-34
-34
33
PCIAD20
77
ENGRDY
/5+N_ON
-35
-35
34
PCIAD19
78
-36
-36
35
GND
79
XREST
36
PCIAD18
80
/SHUTOFF
-37
-37
37
PCIAD17
81
-38
-38
GND
38
PCIAD16
82
PERXD
-39
-39
39
GND
83
-40
-40
PETXD
40
PCICMD2
84
CSSRST
-41
-41
41
XFEAME
85
-42
-42
GND
42
XIRDY
86
AEVD1
-43
-43
43
GND
87
-44
-44
AEVD3
44
XTRDY
88
GND
-45
-45
-46
-46
AEVD6
GND
-47
-47
CN5
CN8
-48
-48
XAELGT
No
Terminal
No
XAFGT
-49
-49
1
TX+
1
-50
-50
GND
2
TX-
2
XALSNC
-51
-51
3
RX+
3
-52
-52
XAOE
4
CT1
4
ACRXD
-53
-53
5
CT2
GND
-54
-54
6
RX-
XACRREQ
-55
-55
7
CT3
-56
-56
XACTXEN
8
CT4
+5V
-57
-57
-58
-58
+5V
+5V
-59
-59
+5V
-60
-60
CN6
No
Terminal
No
Terminal
No
Terminal
1
VSS
MDQ8
N.C
37
73
2
VSS
38
MDQ40
74
CLK1
3
MDQ0
39
MDQ9
75
VSS
4
MDQ32
40
MDQ41
76
VSS
5
MDQ1
41
MDQ10
77
N.C
6
MDQ33
42
MDQ42
78
N.C
7
MDQ2
43
MDQ11
79
N.C
8
MDQ34
44
MDQ43
80
N.C
9
MDQ3
45
VDD
81
VDD
10
MDQ35
46
VDD
82
VDD
11
VDD
MDQ12
MDQ16
47
83
12
VDD
48
MDQ44
84
MDQ48
13
MDQ4
49
MDQ13
85
MDQ17
14
MDQ36
MDQ45
MDQ49
50
86
<< Option >>
15
MDQ5
51
MDQ14
87
MDQ18
16
MDQ37
52
MDQ46
88
MDQ50
<<Key Counter>>
17
MDQ6
53
MDQ15
89
MDQ19
CN213-A7
:▼24V
Key Counter ON
18
MDQ38
54
MDQ47
90
MDQ51
-A8
+24V
19
MDQ7
55
VSS
91
VSS
-A9
:▼ 5V
Key Counter Detection
20
MDQ39
56
VSS
92
VSS
-A10
CGND
21
VSS
N.C
MDQ20
57
93
<<LCS LCOT >>
22
VSS
58
N.C
94
MDQ52
CN221-B1
TXD LCOT
23
DQMB0
59
N.C
95
MDQ21
-B2
RXD LCOT
24
DQMB4
N.C
MDQ53
60
96
25
DQMB1
61
CLK0
97
MDQ22
26
DQMB5
62
CKE0
98
MDQ54
<<LCS LCIT)>>
27
VDD
63
VVDD
99
MDQ23
28
VDD
64
VDD
100
MDQ55
LCIT
29
MA0
65
_RAS
101
VDD
OPTICAL FIBER CN
30
MA3
66
_CAS
102
VDD
Option
31
MA1
67
_MWE
103
MA6
32
MA4
68
CKE1
104
MQ7
33
MA2
69
_CS0
105
MA8
34
MA5
MA12
MBA0
70
106
35
VSS
71
_CS1
107
VSS
36
VSS
72
N.C
108
VSS
PCB:ACU:EMERALD:EXP
CN2
CN5
IEEE1284/
Remote LAN
Remote LAN
Option
D
F
C
E
G
11
12
13
MPU
I/O
CN7
Terminal
No
Terminal
No.
Terminal
A1
GND
B1
LAD0
XDEVSDEL
A2
LAD1
B2
LAD2
XSTOP
LAD3
B3
GND
A3
LAD4
XPERR
A4
LAD5
B4
LAD6
A5
LAD7
B5
+3.3V
XSERR
_OEL
B6
PAR
A6
BLA1
GND
A7
BLA2
B7
BLA3
A8
BLA4
B8
BLA5
PCICMD1
BLA6
B9
BLA7
PCIAD15
A9
B10
PCIAD14
A10
BLA11
BLA13
A11
LAD8
B11
LAD9
GND
A12
LAD10
B12
LAD11
PCIAD13
LAD12
B13
PCIAD12
A13
LAD13
A14
LAD14
B14
BLA8
PCIAD11
A15
BLA12
B15
+3.3V
GND
BLA9
B16
PCIAD10
A16
BLA10
PCIAD9
A17
BLA14
B17
_DIMM_0_CS
A18
LAD15
B18
BLA15
PCIAD8
LAD0
B19
GND
A19
LAD1
B20
PCICMD0
A20
GND
BLA19
A21
BLA21
B21
BLA22
PCIAD7
A22
BLA20
B22
_DIMM_1_CS
PCIAD6
BLA16
B23
PCIAD5
A23
BLA17
A24
_WEH
B24
BLA18
PCIAD4
A25
LAD2
B25
LAD3
PCIAD3
LAD4
B26
PCIAD2
A26
LAD5
+3.3V
A27
LAD6
B27
LAD7
A28
_OEH
B28
LAD8
PCIAD1
LAD9
B29
+3.3V
A29
LAD10
B30
PCIAD0
A30
LAD12
LAD11
A31
+3.3V
B31
LAD13
+3.3V
LAD14
B32
LAD15
N.C
A32
_RST
B33
+3.3V
A33
BLA23
A34
_FONTCS
B34
_WEL
N.C
A35
PD1
B35
PD2
+3.3V
PD3
B36
N.C
A36
GND
+3.3V
N.C
+3.3V
N.C
+3.3V
N.C
+3.3V
N.C
CN10
Terminal
No
Terminal
Vbus
1
SD_DT3
D-
2
SD_CMD
D+
3
GND
GND
4
+3.3V
5
SDCLK
6
GND
7
SD_DT0
8
SD_DT1
9
SD_DT2
10
_SD_CD1
11
GND
12
_SD_WP1
CN4
No
Terminal
No
Terminal
No
Terminal
109
MA9
1
/IDERESET
23
/DIOW
2
24
110
MBA1
GND
GND
111
MA10
3
DD7
25
/DIOR
112
MA11
4
DD8
26
GND
5
27
113
VDD
DD6
/IORDY
114
VDD
6
DD9
28
(Reserve)
115
DQMB2
7
DD5
29
/DMACK
8
DD10
30
GND
116
DQMB6
9
31
117
DQMB3
DD4
INTRQ
118
DQMB7
10
DD11
32
+5VE
119
VSS
11
DD3
33
DA1
12
34
120
VSS
DD12
+5VE
121
MDQ24
13
DD2
35
DA0
122
MDQ56
14
DD13
36
DA2
15
37
123
MDQ25
DD1
/CS0
124
MDQ57
16
DD14
38
/CS1
125
MDQ26
17
DD0
39
(Reserve)
18
DD15
40
GND
126
MDQ58
19
41
127
MDQ27
GND
+5VE
128
MDQ59
20
IDEBUFDIR
42
+5VE
129
VDD
21
DMARQ
43
GND
22
44
130
VDD
GND
(Reserve)
131
MDQ28
132
MDQ60
133
MDQ29
134
MDQ61
135
MDQ30
136
MDQ62
137
MDQ31
138
MDQ63
139
VSS
140
VSS
141
SDA
142
SCL
CN14
143
VDD
HDD
144
VDD
Option
CN6
CN7
CN10
CN8
RAM_DIMM
ROM_DIMM
SD_CARD
USB
Option
Option
14
15
16
CN107
100
1
1
100
CN203
CN107-CN203
No
Terminal
No
Terminal
1
TENCHIMCLK
51
+12V
2
PLOTMPULS
52
-12V
3
DFMPULS
53
INK_SN
4
SCMPULS
54
+5V
5
RVSMPULS
55
+5V
6
/REV_RST
56
+5V
7
ED15
57
+5V
8
ED14
58
+5V
9
ED13
59
+5V
10
ED12
60
+5V
11
ED11
61
+5V
12
ED10
62
+5V
13
ED9
63
CGND
14
ED8
64
CGND
15
RST3N
65
CGND
16
XCSIO
66
CGND
17
XERD
67
CGND
18
XEWR
68
CGND
19
XIOREQ
69
ENCO_CAT
20
EA10
70
FEEDENCD
21
EA9
71
FEEDMIDD
22
EA8
72
PENTSN
23
EA3
73
FEEDSTBK
24
EA2
74
FEEDST
25
EA10
75
PFEEDSN
26
EA0
76
PSENTAN
27
DFORG
77
BANK_ON
28
RDFORG
78
BANK0_ON
29
PLTLSW
79
PPDLV
30
DFGATE
80
RXD_CAT
31
SHUTOFF
81
TXD_CAT
32
PLTNPRES
82
N.C
33
MSTENDPURS
83
N.C
34
CUTLMT
84
N.C
35
FEEDPRS_ON
85
N.C
36
FEEDPLS_OFF
86
CGND
37
FCVOP
87
DRMMST2
38
PRESSOL_CAT
88
CGND
39
PLOTUNI
89
MSTSET
40
+5VE
90
CGND
41
+5VE
91
MSTEJCT
42
+5VE
92
CGND
43
+5VE
93
MSTSENTAN
44
+5VE
94
CGND
45
CGND
95
DRMMST1
46
CGND
96
CGND
47
CGND
97
MSTEND
48
CGND
98
CGND
49
CGND
99
MSTDUCT
50
CGND
100
CGND
CN100
1
No
Terminal
No
Terminal
1
GND
35
GND
CN100
2
D3
36
CD1N
IC Card
3
D4
37
D11
4
D5
38
D12
5
D6
39
D13
68
6
D7
40
D14
7
CE1N
41
D15
8
A10
42
CE2N
9
OEN
43
N.C
10
A11
44
N.C
11
A9
45
N.C
12
A8
46
A17
13
A13
47
A18
14
A14
48
A19
15
WEN
49
A20
16
N.C
50
A21
17
VCC
51
VCC
18
N.C
52
N.C
19
A16
53
N.C
20
A15
54
N.C
21
A12
55
N.C
22
A7
56
N.C
23
A6
57
N.C
24
A5
58
N.C
25
A4
59
N.C
26
A3
60
N.C
27
A2
61
N.C
28
A1
62
BVD2
29
N.C
63
BVD1
30
D0
64
D8
31
D1
65
D9
32
D2
66
D10
33
WP
67
CD2N
34
GND
68
GND

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