2NP
2-4-26
TO DP JPWB
1
2
3
4
5
6
7
LEDPWB
1
2
3
4
1
2
3
4
5
5
2
3
3
4
2
4
3
1
5
4
4
1
2
3
1
7
7
8
8
8
11
10
GND
9
9
10
49
GND
GND
+24V1
3
2
1
7
50
+5.1V
5V
1
11
10
PGND
PWM
+24V1
6
6
YC1
7
11
9
8
10
9
7
12V
ACT
12V
GND
3
7
GND
12
GND
2
3.3V
3.3V
2
1
1
2
2
1
4
5
6
7
15
15
7
+24V2
YC7
Reserve
24V2
GND
3
GND
9
GND
2
SMOT BN
3
SMOT AN
4
SMOT BP
3
2
5
8
11
12
13 Reserve
14
10
SMOT AP
1
6
5
4
3
2
GND
HTPDN
GND
1
RX0P
GND
PCIEP0_A2DP
PCIE3_SWRST_A
RX0N
YC2
3
6
16
3
LOCKN
2
+24V1
1
4
1
1
GND
B-
2
1
50
48
47
PCIEP0_A2DP
2
5
6
GND
4
7
6
11
2
3
38
GND
YC6
1
3.3V
5
6
7
B+
GND
A-
3
7
4
6
6
4
5
5
7
3
1
2
2
1
2
1
5
GND
GND
3
GND
2
+5V_HDD
7
YC32
1
GND
4
RXP
6
RXN
5
7
TXN
6
GND
YC1
RXP
GND
GND
TXP
YC2
TXP
RXN
2
GND
1
3
TXN
4
5
6
+24V2
GND
24V2
5
4
3
3
DP_CLK
DP_SI
6
GND
2
1
GND
DP_RDY
DP_SO
DP_SEL
DP_TMG
DP_OPEN
GND
1
10
6
3
2
4
8
GND(SPARE)
1
8
+3.3V
1
SCL
VSET
FAIL
SDA
YC14
12V
YC5
15 24V2
16
YC12
HP_SW
3
13
+5V
1
2
2
1
+3.3V
11
11
12
SGND
13
14
14
POW
5V
10
9
8
9
10
YC8
3
4
6
5
GND
GND
OSS
5V
1
6
ORG_SW
CO_SW
YC13
3
2
1
2
GND
PCIEP0_DP2A
44
43
3
48
49
PCIEN0_A2DP
GND
PCIEP0_DP2A
PCIE3_SWRST_A2
GND
39
47
46
45
42
46
45
GND
PCIEN0_A2DP
PCIEN1_A2DP
GND
GND
PCIEN0_DP2A
GND
PCIEP1_A2DP
GND
35
36
PCIEN0_DP2A
40
41
40
39
38
35
36
4
2
1
3
4
2
1
3
+5.1V
34
6
GND
38
39
40
35
35
+3.3V3
RS
38
CCDCLK1
8
7
6
36
8
RS
3
GND
GND
PCIEN1_A2DP
+5.1V
1
GND
+10V
PCIEP1_A2DP
9
VSG
11
11
TG
9
2
1
30
31
+3.3V3
PCIEP1_DP2A
GND
1
CCDCLK1
GND
33
32
34
34
33
YC11
2
GND
18
+3.3V3
SC_IRN
+3.3V3
32
31
29
30
23
22
+3.3V3
GND
21
12
8
1
SH
10
10
13
13
8
2
1
12
2
7
7
AFE_SI
+3.3V3
+3.3V3
GND
6
GND
CP
4
4
5
23
28
27
26
24
3
PCIEN2_A2DP
GND
25
3
7
PCIEP2_A2DP
CCDCLK2
5
PCIEN1_DP2A
+3.3V3
27
29
GND
28
PCIEP2_DP2A
+3.3V3
25
26
+3.3V3
PCIEN2_A2DP
22
24
21
19
+3.3V3
+3.3V3
GND
+3.3V3
PCIEP2_A2DP
GND
+3.3V3
PCIEP1_DP2A
+3.3V3
PCIEN1_DP2A
18
PCIEP2_DP2A
19
+3.3V3
20
GND
+3.3V3
20
14
3
SC_DIR
15
AFECLK
4
AFE_SO
14
6
6
17
PCIEN2_DP2A
4
4
16
URAN_RSTN
SC_BSY
SC_HLDN
4
5
5
3
16 GND
5
5
18
15
SC_SI
SC_HLDN
SC_SO
DIS_CIS_1N
17 DIS_CIS_1P
SC_BSY
SC_SI
1
3
1
7
6
3
7
6
SC_IRN
AFE_EN
SC_DIR
GND(SPARE)
14
PCIEP3_A2DP
GND
SC_CLK
GND
GND
12
13
SC_CLK
21
11
GND
20
DIS_CIS_2P
20
YC3
12
URAN_RSTN
GND
19
8
8
2
2
13
16
SC_SO
19
DIS_CIS_2N
15
15
14
GND
21
20
22
10
9
9
21
GND
23
PCIEN3_A2DP
YC11
10
11
8
6
8
DIS_CIS_3N
PCIEN_REFCLK_D
6
GND
22
25
24
GND
DIS_CIS_3P
PCIEP3_DP2A
GND
GND
PCIEP_REFCLK_D
GND
2
1
2
DP_CONECTN
4
3
GND
GND
3
4
7
7
5
5
RX0N
RX0P
DP_SYSCLKOUT
PCIEP3_DP2A
PCIEN3_DP2A
DP_SYSCLKOUT
PCIEN3_DP2A
YC4
1
YC10
16
19
17
25
23
18
24
17
27
18
16
26
15
18
17
14
16
26 DIS_CIS_4P
14
15
DIS_CIS_4N
27
30
GND
13
DIS_CIS_5P
29
28 GND
28
13
30 DIS_CIS_5N
5
7
DIS_CISCKN
DIS_CISCKP
TX0N
TX0P
5
GND
GND
31
6
31
34
33
34
5
5
32
GND
GND
DP_CONECTN
6
7
6
7
7
6
GND
3
4
4
3
LOCKN
4
4
HTPDN
2
LOCKN
3
3
HTPDN
36
GND(AFE_SHD)
AFE_MCLK
GND
2
2
2
1
YC9
38
GND(AFE_SHP)
40
GND
38
1
1
1
YC25
39 CLPIN
YC4
VSG
YC2
GND(AFE_SHD)
3
5
MCLK
4
GND
19
GND(AFE_SHP)
1
40
37
4
3
1
39
CLPIN
2
GND
36
35
2
5
6
CCDSEL
35
37
12
8
8
33
9
29
11
11
12
32
GND
10
7
10
9
TXCLK1P
TXCLK1N
CCDSEL
7
GND
6
GND
GND
TXOUTC2N
TXOUTB2P
TXOUTC1N
TXOUTC1P
SCLK
TG
TXOUTA2N
GND
GND
TXOUTC2P
TXOUTB1P
TXOUTB1N
5
15
2
13
14
9
11
4
HPS
3.3V
GND
3
GND
3.3V
COSW
2
HPSW
ODSW
2
3
3
1
2
1
1
1
7
12
3
2
2
3
3
ISUM
B/
A
B
A/
SDI
GND
36
5
37
YC1
GND
GND
GND
CCDCLK2
SENB
28
SDO
SH
29
27
30
34
33
25
22
30
6
40
39
32
31
31
33
22
23
24
23
24
YC27
1
ORGSW
43
44
GND
6
GND
GND
GND
6
5
+3.3V
4
GND
5
GND
5
4
4
20
GND
3
21
TXOUTB2N
26
CP
32
TXOUTA2P
25
37
+3.3V
GND
42
GND
41
GND
37
3
A+
GND
5V
2
GND
4
6
3
2
6
5
2
4
3
3
1
5
1
GND
3
GND
+5V_HDD
2
17
2
+10V
26
28
27
5
37
1
29
PCIEP_REFCLK_
GND
PCIEN_REFCLK_
GND
GND
PCIEP3_A2DP
PCIEN3_A2DP
ISCPWB
CCDPWB
MPWB
PCIEN2_DP2A
+3.3V3
1
2
3
4
DPIFPWB
HDD1
1
2
To DP
To PSPWB
4
5
Relay
Summary of Contents for TASKalfa 2551ci
Page 1: ...SERVICE MANUAL Published in September 2016 842NP11A 2NPSM06A Rev A TASKalfa 2551ci ...
Page 10: ...This page is intentionally left blank ...
Page 97: ...2NP 1 1 2 74 This page is intentionally left blank ...
Page 259: ...2NP 1 3 162 U486 Details on the modes Figure 1 3 47 Item No Description ...
Page 473: ...2NP 1 5 62 This page is intentionally left blank ...
Page 497: ...2NP 2 1 22 This page is intentionally left blank ...
Page 555: ...2NP 2 3 48 This page is intentionally left blank ...
Page 584: ...Installation Guide DP 770 B Document processor DP 772 Document processor Installation Guide ...
Page 620: ...DP 773 Document processor Installation Guide ...
Page 646: ...PF 791 500 x 2 Paper feeder Installation Guide ...
Page 654: ...PF 810 3000 sheets deck Installation Guide ...
Page 667: ...DF 770 D Document finisher Installation Guide ...
Page 685: ...AK 740 Bridge unit Installation Guide ...
Page 687: ...PH 7A C D Punch unit Installation Guide ...
Page 708: ...DT 730 B Document tray Installation Guide ...
Page 710: ...5 2013 5 302LC56750 01 H F G D D 6 4 3 7 E C D D M4 8 M4 8 M4 8 M4 8 ...
Page 711: ...FAX System W B Installation Guide ...