2NP
2-4-28
YC15
YC42
YC3
TD1+
TD1-
TD2+
TD2-
CT1
CT2
TD3+
TD3-
TD4+
TD4-
GRLED_A1
GRLED_K1
GRLED_A2
GRLED_K2
LockPin(1)
LockPin(2)
1
2
3
4
5
6
7
DP_OPEN
GND
DP_TMG
NC
DP_CLK
DP_SEL
GND
GND
GND
DP_SO
DP_CLK
DP_SEL
15
16
13
24V2
16
GND(SPARE)
DPJPWB
DP_TMG
DP_TMG
YC1
11
12
13
3
4
5
6
Reverse
DP_OPEN
14
7
8
9
10
11
12
13
DP_SEL
3
4
5
6
24V2
11
10
9
10
6
4
11
7
14
DP_RDY
1
1
GND(SPARE)
15
3
3
DP_RDY
2
DP_SI
13
12
12
24V2
DP_SO
5
5
DP_CLK
4
GND
2
9
7
7
DP_SI
10
8
8
DP_OPEN
8
9
GND
7
9
9
Reverse
8
10
10
4
12
12
6
6
GND
11
11
GND
2
16
16
24V2
24V2
1
15
15
24V2
2
13
13
Reverse
1
14
14
24V2
24V2
Reverse
4
YC2
5
DP_SO
5
8
NC
DP_SI
6
7
2
DP_RDY
8
3
2
3
1
1
5
N.C
13
4
DP_SI
2
4
DP_CLK
D-sub
24V4
11
11
D-sub
24V4
9
9
DP_RDY
5
3
GND
8
GND
10
6
6
10
2
DP_SEL
1
1
DP_SO
3
DP_OPEN
N.C
12
PF_SI
PF_SO
PF_SEL
PF_RDY
FG
15
15
DP_TMG
7
7
KEY
14
14
AC_LIVE
AC_NEUTRAL
1
2
3
4
5
6
7
8
2
AC_NEUTRAL
AC_NEUTRAL
3
3
AC_LIVE
AC_LIVE
2
4
AC_NEUTRAL
2
2
AC_NEUTRAL
AC_NEUTRAL
AC_LIVE
4
1
1
AC_LIVE
GND
5
1
4
4
GND
4
2
11
GND
11
GND
9
3.3V2
3.3V1
4
9
12
3
10
12
10
5
8
8
24V1
3.3V1
3
24V1
1
2
7
1
7
PF_SEL
4
PF_SET
6
PF_RDY
5
PF_PAUSE
3
5
5
6
PF_SET
2
6
6
2
2
7
1
4
4
1
4
3
5
3
PF_SO
3
PF_SI
2
VDD5
1
7
PF_CLK
PF_PAUSE
3.3V2
AC_LIVE
VDD5
1
1
7
8
13
15
7
8
14
12
11
9
PF_CLK
7
1
14
RESETN0
3
RESETN
3
9
10
4
YC5
16
16
15
13
GND
8
9
9
10
4
5
7
3
2
GND
2
15
NC
17
GND
19
16
NC
20
VDD5_CUT0
4
VDD5_CUT
4
GND
5
GND
5
WAKEUP
6
AUDIO0
7
AUDIO
7
WAKEUP0
6
NC
8
NC
9
NC
9
NC
8
NC
10
GND
11
GND
11
NC
10
NC
12
NC
13
NC
13
NC
12
GND
14
NC
15
NC
15
GND
14
1
VDD5
USB_DN
VBUS0
20
VBUS
20
19
VDD5
3
RESETN
GND
2
2
GND
RESETN1
3
5
GND
VDD5_CUT1
4
4
VDD5_CUT
GND
5
7
AUDIO
WAKEUP
6
6
WAKEUP
AUDIO1
7
10
NC
NC
8
8
NC
9
NC
NC
9
GND
13
NC
12
NC
14
11
GND
VBUS1
USB_DN
USB_DP1
18
18
USB_DP
VBUS
GND
GND
RESET1
20
16
NC
13
GND
USB_DN1
NC
12
15 RESET0
12 GND
13 AUDIO0
14
11
AUDIO0
14
2
6
13
13
13
6
14
1
5V_CUT1
YC4
WAKEUP0
14
WAKEUP0
15
5V_CUT1
15
11
VBUS0
USB_DN0
11
USB_DP0
10
9
10
GND
USB_DN0
10
9
VBUS0
8
18
NC
16
NC
GND
GND
19
5
7
8
11
7
YC9
GND
YC1
USB_DP0
18
USB_DP
17
17
USB_DN0
19
YC3
YC2
2
1
USB_DN1
2
17
1
VBUS1
USB_DP1
AUDIO1
5
GND
3
RESET1
4
7
4
WAKEUP1
6
6
5
YC8
VBUS1
1
2
USB_DN1
1
14
NC
15
2
3
AUDIO1
5
4
3
3
9
7
6
5
4
6
6
2
16
8
5
5V
1
GND
GND
GND
1
2
10
12
9
8
8
11
10
1
3
5
GND
5V
4
GND
NC
USB_DP1
GND
WAKEUP1
1
12
11
GND
10
6
10
4
9
3
GND
12
4
5V
6
12
GND
2
15
5
4
3
2
3
1
USB_DP0
5V
4
GND
5V
RESET
GND
5V
5
GND
6
4
5V
5V_CUT0
2
6
3
2
3
1
6
5
NC
10
ECPWB
MPWB
GND
1
5V_CUT0
3
2
5
KUIOCPWB
KUIOPWB
KUIOPWB
PF UNIT
to PSPWB
to PSPWB
200V PF
From PSPWB
DP (3P2)
From DPIFPWB
From ISCPWB
DP (3NV)
D-sub
D-sub
D-sub
D-sub
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 ...