Panasonic KX-MB2571RU Service Manual ▷ View online
17
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
AD
F sw
it
ch
back
SO
LEN
O
ID
CN69
24V
S
N
AD
FS
W
B
K
LED
RPS
GN
D
DOCU
24V
ADFM
1
ADFM
2
ADFM
3
ADFM
4
SN
A
D
F
S
N
AD
FS
WBK
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
VIDEO
䠇
VIDEO
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
䠉
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
O
PPAPER
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
DG
D+
D
䠉
nRST
+3.3V
1
2
3
4
5
CN800
WLAN
MODULE
18
KX-MB2571RU
6.2.
General Block Diagram
MAIN Board
SOC (IC300)
This custom IC is used for general MFP operations.
ROM (IC301) (32MB)
This FLASH ROM contains all of the program instructions on the unit operations.
And support the backup of user setting and FAX receive data.
And support the backup of user setting and FAX receive data.
DDR3 Synchronous Dynamic RAM (IC404/IC405)
This 6Gbit SDRAMs is used for CPU work and receiving memory and page memory.
POWER SUPPLY
DC-DC converters generate 5V/3.3V/1.5V and 1.0V for system power.
Regulator generates 5V for system power and 0.75V for DDR3 3.3V for CIS power.
Regulator generates 5V for system power and 0.75V for DDR3 3.3V for CIS power.
TEL/FAX I/F
Composed of ITS circuit and NCU circuit.
2 ICs called DAA (Direct Access Arrangement) control Telephone line, Speaker and MIC.
2 ICs called DAA (Direct Access Arrangement) control Telephone line, Speaker and MIC.
READ Section
CIS Unit to read transmitted documents.
Scan data is converted by AFE(IC700).
Scan data is converted by AFE(IC700).
Motor
This model has 2 stepping motors and one DC motor.
IC701 drives the stepping motors for CIS carriage and Auto Document Feeder.
Main Motor is a DC motor.
IC701 drives the stepping motors for CIS carriage and Auto Document Feeder.
Main Motor is a DC motor.
LSU
Forms the images on the OPC DRUM by rotating polygon motor and reflecting the laser beam against polygon.
Sensors
This model has 2 switch and 13 sensors.
Low Voltage Power Supply Board (SMPS Board)
Supplies +24V and +12V to the Main unit and controls the Heat Lamp.
High Voltage Power Supply Board (HVPS Board)
Supplies bias need for the printing operation: bias of the DRUM, Developing and Transcription.
Fuser Unit
Composed heat lamp, thermistor and thermostats.
1)
CPU
Cortex A8 operating at 500MHz.
2)
SDRAM Controller
Controls DDR3 SDRAM Memory.
3)
USB Controller with PHY
ch1:USB device (Apply to USB2.0HS)
ch2:USB host (WiFi controller)
ch3:USB host (USB memory)
ch2:USB host (WiFi controller)
ch3:USB host (USB memory)
4)
Scanner I/F
Controls the CIS and AFE, and process the scan images.
5)
LSU I/F
Controls the polygon motor and outputs the VIDEO signal to LSU.
6)
MOTOR I/F
Controls DC motor and Stepping motor.
7)
FAN I/F
Controls FAN MOTOR and detect the rotation of FAN MOTOR.
8)
OPERATION PANEL I/F
Serial interface with Operation Panel.
9)
SENSOR I/F
Detects the sensor signal.
10) I/O PORT
I/O Port Interface.
11)
A/D, D/A converter
Sends beep tones, etc.
Convert the analog signal to the digital signal.
Convert the analog signal to the digital signal.
12) RTC
Real time clock.
13) MODEM
Performs the modulation and the demodulation for FAX communication.
14) Analog Front End I/F
Controls the DAA device for TEL/FAX function.
15) LAN Controller
Ethernet control.
19
KX-MB2571RU
FAN MOTOR
FAN motor cool down Fuse Unit.
Solenoid
This model has 7 solenoids.
OPTIONAL LOWER INPUT TRAY Interface
This model has the connector to Optional Lower Input Tray.
20
KX-MB2571RU
One
touch
Key
Main
DC motor
JST8
JST2
Resist
Clutch
JST3
FA
N
Hall
IC
Toner
Sensor
A
D
U
Sensor
MPT
Solenoid
24V
Interlock
3.3V
Interlock
Pick
Up Solenoid
MPT
Sensor
PICK
Sensor
Paper
Sensor
CSopen
Sensor
Conexant
DC1589
DP-MB251/MB2571s
eries
System Schematic
SMPS
Thermostat
Thermostat
Heater
AM
P
4
LSU
USB
Serial-FLA
SH
(256Mbit)
DDR3-SDRA
M
(2Gbit
)
Ope
G/
A
(3ch)
AF
E
Dot
matrix
LCD
Motor Driv
e
r
(FB/A
DF)
AM
P
8
Flat
Bed
Thermistor
(Room)
FB
motor
Color
CIS
(
)
3ch
FFC
16
JST4
EXIT
S
ensor
AM
P
1
0
9ĺ
5V/3.3V
/1.
5
V
/1
.0
V
DC-DC
HVPS
(MB200
0
ތs)
Lithium
Battery
AM
P
5
A
C
inlet
A
C
cord
set
10/100/1000
Phy
LA
N
W-LAN
Module
PCB
Read
Position
Sensor
Document
Sensor
A
D
F
m
otor
AM
P
4
JST3
AM
P
1
1
DRA
WER
A
D
U
Solenoid
JST2
Thermistor
(Heater)
AM
P
2
Rear
Cov
er
Sensor
Pick Up
Relay
Board
Center Relay
Board
Fuser Board
AM
P
8
AM
P
6
OPF
Pick
Up
Solenoid
OPF
Driv
er
Board
OPF
Motor
AM
P
4
(Blue)
MOLEX2
OP
Paper
Option
Cassette
RA
DF
Sw
itch Back
Solenoid
JST2
ADF
Relay
Board
Operation
Panel
Board
JST5
Resist
Sensor
PTOP
Sensor
AM
P
2
AM
P
2
(Blue)
RA
DF
Solenoid
AM
P
2
Pow
er
SW
Varistor
9ĺ977
Vref
REG
Print
Sensor Relay
Board
MPT
Relay
Board
Interlock
Sw
itch
Board
AM
P
4
AM
P
6
(Blue)
AM
P
6
AM
P
3
(Blue)
AM
P
1
2
Main
Board
6Lay
ers
PCB
NCU
TEL
EXT
TEL
AM
P
2
Speaker
AM
P
6
Handset Relay
Board
Rear
Sensor Board
AM
P
2
A
D
F
block
USB
memor
y
AM
P
3
JST2
(Blue)
Sw
itch Back
Solenoid
A
M
P2(Blue)
OP
Pick
AM
P
8
(Blue)
AM
P
9
(Blue)
AM
P
4
(Blue)
RA
DF
JA
M
Sensor
AM
P
3
For
Handset
models
T
oner
Sensor Board
Pow
er
Sw
itch
Board
V
aristor
Board
AM
P
2
AM
P
4
OPF
Driver
Board
OPF
Sensor Board
OPF
Relay
Board
RADF Board
RPS
Board
DOCU Sensor Board
One
T
ouch
Key
Board
OPC
contact
Board
TNR contact
Board
Handset
Board
DDR3-SDRA
M
(4Gbit
)
SPI
Serial
Bus
connection
JST6
802.1
1
b/g/
n
SDA
A
MODEM
IC850
IC300
IC203
IC404
IC405
IC700
IC301
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