Read Panasonic DP-MB251CX / DP-MB311EU / DP-MB311JT / KX-MB2571RU (serv.man2) Service Manual Supplement online
7
DP-MB251CX/DP-MB311EU/DP-MB311JT/KX-MB2571RU
6 Technical Descriptions
6.1. Connection Diagram
OPF
MOTOR
1 4
2 3
No NAME
No
NAME
1
VBUS
2
D
䠉
3
D+
4
GND
CN502
CN702
CN402
CN101
CN100
2
1
1
CN201
MAIN BOARD
SMPS
OPERATION PANEL BOARD
ADU
SOLENOID
TO
TELEPHONE
LINE
TO
EXTERNAL
TELEPHONE
TO
PC/USB
CN300
CN2
NEUTRAL
DC FAN
TONER
SENSOR
24V Interlock
Switch
SW51
IC50
HEAT LAMP
THERMOSTAT
THERMOSTAT
PI58
POUT
SENSOR
CN52
THERMISTOR
1
2
2
CN70
THRM1
DG
FUSER
UNIT
No NAME
No
NAME
1
a1
2
E(G) / A2
3
a / A1
4
b / B1
5
S(W) / B2
6
b1
CN100
No NAME
No
NAME
1
b1
2
S(W)
3
b / B1
4
a / A1
5
E(W)
6
a1
CN101
Speaker
SP+
SP
SP
䠉
No NAME
No
NAME
16
LED_R
15
LED_G
14
LED_B
13
5V
12
SP
11
3.3V
10
CLK
9
DG
8
VREF
7
RES
6
DG
5
SIG3
4
DG
3
SIG2
2
DG
1
SIG1
CN700
CISMODULE
1
3
5
3
5
2
4
6
4
6
1
3
5
3
5
2
4
6
4
6
CN504
CN505
LSU
3.3V Interlock
Switch
SW50
ADF
MOTOR
RPS
SENSOR
DOCU
SENSOR
PI59
PI60
1
2
3
CN62
CN1
LIVE
PE
PSU COVER
AC INLET
2 1
4 3
6 5
8 7
JK850
4
2
No
MDI0-
1
MDI1-
MDI1+
3
NAME
NAME
No
8
6
MDI2-
MDI2+
5
MDI3-
MDI3+
7
MDI0+
1
2
3
CN61
RADF JAM
SENSOR
PI62
1
2
3
CN60
LED
DOCU
GN
D
LED
GN
D
RPS
ADFJ
AM
GN
D
LED
RAD
F
SO
LEN
O
ID
CN57
CN56
CN73
CN68
24V
SN
A
D
F
A
D
F sw
it
ch
back
SO
LEN
O
ID
CN69
24V
SN
A
D
F
S
W
B
K
LED
RPS
GN
D
DOCU
24V
ADFM
1
ADFM
2
ADFM
3
ADFM
4
SN
A
D
F
SN
A
D
F
S
W
B
K
ADFJ
AM
ADFM
1
ADFM
2
ADFM
3
ADFM
4
CN67
1
2
3
4
1
2
3
1
2
3
1
2
3
PICK
SENSOR
PI50
PAPER
SENSOR
PI51
CSOPEN
SENSOR
SENSOR
PI52
S3.3V
THRM1
CSOPEN
PAPER
PICK
GND
CN50
1
2
3
4
5
6
1
2
3
4
5
6
CN510
ADU
SENSOR
PI53
RESIST
SENSOR
PI54
PTOP
SENSOR
PI55
S3.3V
RESIST
ADU
PTOP
TNR
GND
CN54
1
2
3
4
5
6
1
2
3
4
5
6
CN511
DC
MOTOR
24V
24V
GND
GND
LD
SS
CLK
BRAKE
1
2
3
4
5
6
7
8
CN509
S3.3V
THRM0
POUT
GND
1
2
3
4
1
2
3
4
HVRR
TRS
DEV
CHG
GND
䠉
24V
24V
1
2
3
4
5
6
7
8
CN507
12V
GND
GND
24Va
24Va
GND
24Vb
RLYCTL
PWRDWN
HTRCTL
1
2
3
4
5
6
7
8
9
CN101
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
S3.3V
REARCVR
GND
1
2
3
CN506
CN508
TO
PC/LAN
1
2
PI57
REARCVR
SENSOR
CN53
1
2
3
RESIST
SOLENOID
Switch back
SOLENOID
SOLENOID
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
CN704
KS
TART
KRXD
KT
XD
KS
CL
K
OPERS
T
C/
D
GN
D
5V
3.3V
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
CN59
SNPICK
GND
CN63
SNADU
24V
CN65
SNRESIST
24V
CN76
SNSWBK
24V
CN72
GND
FANDET1
FANON1
Pick Up
SOLENOID
1
2
1
2
1
2
3
1
2
1
2
1
2
1
2
FANON1
FANDET1
24V
SNSWBK
SNADU
SNRESIST
SNPICK
GND
1
2
3
4
5
6
7
8
CN513
CN58
GND
HOOK
MIC
䠉
MIC
䠇
HSSP
䠉
HSSP
䠇
1
2
3
4
5
6
CN200
CN71
1
2
3
4
5
6
1
2
3
4
5
6
7
8
GN
D
L3
.3
V
XHS
YN
C
VI
DEO
䠇
VI
DEO
䠉
XA
P
C
XL
DE
N
LD
PW
R
GN
D
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
PO
LCLK
XR
E
A
D
Y
PO
LO
N
GN
D
24V
1
2
3
4
5
1
2
3
4
5
CN503
24V
O
U
T
䠉
24V
IN
3.3V
IN
䠉
3.3V
O
U
T
1
2
3
4
5
6
1
2
3
4
5
6
OPF PICKUP
SOLENOID
SOLENOID
Option
OPF PAPER
SENSOR
OPF PICK
SENSOR
HVPS
TRA
DEV
GRID
CHG
Transfer Roller
OPC DRUM
OPC Unit
Scorotron
Developping Roller
Toner
Supply
Roller
Supply
Roller
VARISTOR
MPT
SENSOR
PI61
SNMPT
GND
MPT
S3.3V
1
2
3
4
CN515
MPT SOLENOID
SNMPT
GND
CN77
CN900
FG
GND
D
䠇
D
VBUS
1
2
3
4
5
1
2
3
4
5
CN401
1
2
3
CN78
POWER
Switch
USB Memory
PWRSW
䠉
GND
GND
CN74
1
2
3
FB
MOTOR
A
XA
XB
B
CN703
1
2
3
4
One
Touch
Key
OPC
GND
1
2
CN500
TONER
GND
1
2
CN501
PI950
PI951
1
2
CN75
3.3V
OPPICK
OPPAPER
GND
1
2
3
4
CN951
2B
2A
1A
1B
1
2
3
4
CN953
1
2
CN952
CN950
1
2
CN956
1
2
CN955
11
10
9
8
7
6
5
4
3
2
1
CN954
CN514
1
2
3
4
5
6
7
8
9
10
11
24V
A
PG
OP
M
A
OP
M
X
A
OP
M
B
OP
M
P
WR
OP
M
R
S
T
SN
O
P
F
OP
P
A
P
E
R
O
PPICK
S3.3V
CN2
CN3
CN51
CN66
CN55
1
2
3
4
SW56
1
2
CN79
1
2
CN80
CN64
1
3
5
3
5
2
4
6
4
6
No NAME
No
NAME
1
HSMIC+
2
HOOK
3
HSMIC
䠉
4
GND
5
HSSP+
6
HSSP-
CN64
CN940
1
2
3
4
5
6
CN941
HOOK SW
1
2
3
4
SN_OPF
GND
Drawer
Connector
Toner
Cartridge
Cartridge
1
2
3
4
5
6
7
8
9
10
11
12
VLCDIN
VB1
+
VB1
-
VB0
-
VB0
+
GN
D
3.3V
SI
SC
L
CD
RS
T
CS
0
LCD
with back light
DP-MB251 only
with Handset models only
FG
D+
D
䠉
DG
+3.3V
1
2
3
4
5
CN800
WLAN
MODULE
Click on the first or last page to see other DP-MB251CX / DP-MB311EU / DP-MB311JT / KX-MB2571RU (serv.man2) service manuals if exist.