Panasonic KX-MB2000RUB / KX-MB2000RUW / KX-MB2020RUB / KX-MB2020RUW / KX-MB2030RUB / KX-MB2030RUW Service Manual ▷ View online
13
KX-MB2000RUB/KX-MB2000RUW/KX-MB2020RUB/KX-MB2020RUW/KX-MB2030RUB/KX-MB2030RUW
6 Technical Descriptions
6.1.
Connection Diagram
HOOK SW
1
2
3
4
5
6
1
2
3
4
5
6
CN55
1
2
3
4
5
6
1
2
3
4
5
6
CN940
HSSP-
6
HSSP+
5
GND
4
HSMIC -
3
2
No
HOOK
HSMIC+
1
NAME
NAME
No
HSSP-
6
HSSP+
5
GND
4
HSMIC -
3
2
No
HOOK
HSMIC+
1
NAME
NAME
No
CN55
1
2
3
4
2
3
4
CN941
HSMIC+
4
HSSP-
3
2
No
HSMIC -
HSSP+
1
NAME
NAME
No
HSMIC+
4
HSSP-
3
2
No
HSMIC -
HSSP+
1
NAME
NAME
No
CN941
HA
NDSE
T
HANDSET
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1
2
2
1
2
2
1
2
2
1
2
2
1
2
3
2
3
1
2
3
2
3
1
2
3
4
5
6
7
2
3
4
5
6
7
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
11
12
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
11
12
1 4
2 3
2 3
1 4
2 3
2 3
4
2
No
D-
VBUS
1
GND
D+
3
NAME
NAME
No
4
2
No
D-
VBUS
1
GND
D+
3
NAME
NAME
No
CN500
CN501
CN502
CN506
CN507
CN514
CN505
CN504
CN510
1
2
3
4
2
3
4
1
2
3
4
2
3
4
CN509
CN511
1
2
3
4
CN701
1
2
3
4
CN701
1
2
3
4
CN700
1
2
3
4
CN700
CN300
CN101
CN100
8
7
6
5
4
3
2
1
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
7
6
5
4
3
2
1
CN200
CN750
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
CN508
MAIN
BOARD
DC MOTOR UNIT
HVPS
SMPS
OPERATION PANEL BOARD
LCD
LSU
MAIN
MOTOR
REG
REGISTER
SOLENOID
PICKUP
SOLENOID
TO
TELEPHONE
LINE
TO
EXTERNAL
TELEPHONE
TO
PC/USB
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
CN300
CN2
9
8
7
6
5
4
3
2
1
9
8
7
6
5
4
3
2
1
10
CN1
HTRCTL
7V
7V
DG
DG
DG
24V
24V
DG
DG
24V
24V
1
2
3
4
5
6
7
2
3
4
5
6
7
1
2
3
4
5
6
7
2
3
4
5
6
7
24V
8
CN101
1
2
2
1
2
2
CN2
CVR
HVERR
TRS
HVERR
TRS
CHG
DEV
GND
1
2
3
4
5
6
7
2
3
4
5
6
7
1
2
3
4
5
6
7
2
3
4
5
6
7
1
2
3
4
5
6
2
3
4
5
6
7
1
2
3
4
5
6
7
2
3
4
5
6
7
CN1
HEAT
LAMP
COVER OPEN SW
TRA
OPC
DEV
GRID
CHG
DG
FANDET1
FANON1
FANDET1
FANON1
DG
DG
PICK
PO
LC
LK
X
READ
Y
PO
LO
N
DG
24V
XH
S
Y
N
C
DG
5V
XA
PC
XLD
E
N
XV
ID
E
O
DG
24V
24V
DG
DG
LD
SS
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
CL
K
BRAK
E
DC FAN1
(Left )
TRANSCRIPTION
ROLLER
OPC
DRUM
DRUM UNIT
SCOROTRON
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
TH
R
M
K
S
T
ART
KT
X
D
KS
C
L
K
O
P
ERS
T
DG
5V
BU
Z
Z
ER
TH
R
M
K
S
T
ART
KT
X
D
KS
C
L
K
O
P
ERS
T
DG
5V
BU
Z
Z
ER
DB
7
DB
6
DB
5
DB
4
E
R / W
RS
V0
VD
D
VS
S
DEVELOPING
ROLLER
TONER SUPPLY
ROLLER
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
TONER
SENSOR
CN64
1
2
3
4
5
2
3
4
5
1
2
3
4
5
2
3
4
5
1
2
3
4
5
2
3
4
5
1
2
3
4
5
2
3
4
5
CN67
CN63
DG
PICK
DG
FANDET2
DG
FANDET2
FANON2
PICKUP
SENSOR
SW50
1
2
3
1
2
3
FA
N
D
E
T
2
DG
F
A
NO
N2
IC50
1
2
3
4
1
2
3
4
CN66
1
2
3
4
1
2
3
4
CN50
5V
REG
PTO
P
DG
REGISTER
SENSOR
PTOP
SENSOR
PS51
PS52
HEAT LAMP
THERMOSTAT
THERMOSTAT
THERMISTOR
1
2
3
4
1
2
3
4
CN65
1
2
3
4
PS50
EXIT SENSOR
CN53
1
2
3
2
3
1
2
3
2
3
CN52
THRM1
DG
FUSER
UNIT
VARISTOR
BOARD
8
RCT
7
RD-
6
5
TCT
4
RD+
3
2
No
TD -
TD+
1
NAME
NAME
No
8
RCT
7
RD-
6
5
TCT
4
RD+
3
2
No
TD -
TD+
1
NAME
NAME
No
b1
6
S(W) / B2
5
b / B1
4
a / A1
3
2
No
E(G) / A2
a1
1
NAME
NAME
No
b1
6
S(W) / B2
5
b / B1
4
a / A1
3
2
No
E(G) / A2
a1
1
NAME
NAME
No
CN100
a1
6
E(W)
5
a / A1
4
b / B1
3
2
No
S(W)
b1
1
NAME
NAME
No
a1
6
E(W)
5
a / A1
4
b / B1
3
2
No
S(W)
b1
1
NAME
NAME
No
CN101
8
7
6
5
4
3
2
1
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
7
6
5
4
3
2
1
HSSP+
HSSP-
MIC+
MIC -
MIC+
MIC -
HOOK
GND
GND
SP-
SP+
SP+
CN58
1
2
2
1
2
2
CN57
Speaker
SP+
SP-
SP-
ADF
MOTOR
A
B
XA
XB
READ
POSITION
SENSOR
DOCUMENT
SENSOR
PS53
PS54
1
2
3
4
CN56
3.3V
RP
S
DO
C
U
DG
1
2
3
4
5
6
7
8
9
10
11
12
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
2
3
4
1
2
3
4
2
3
4
CN750
CN59
CN60
1
2
3
4
CN62
1
2
3
4
CN62
FB
MOTOR
A
B
XA
XB
2 1
12 11
2 1
12 11
CN61
CISMODULE
LED_G
10
VLED
9
CLK
8
DG
7
SI
6
CNT
5
VREF
4
3.3V
3
12
2
No
DG
SIG
1
LED_B
LED_R
11
NAME
NAME
No
LED_G
10
VLED
9
CLK
8
DG
7
SI
6
CNT
5
VREF
4
3.3V
3
12
2
No
DG
SIG
1
LED_B
LED_R
11
NAME
NAME
No
CN61
FB TRANSIT
BOARD
DC FAN 2
(Right )
CN 51
CR_A
CR_B
CR_XA
CR_XB
CR_B
CR_XA
CR_XB
GND
3.3V
VREF
3.3V
VREF
SI
GND
CLK
GND
CLK
LED_G
LED_R
LED_B
LED_R
LED_B
SIG
GND
VLED
1
3
5
3
5
2
4
6
4
6
1
3
5
3
5
2
4
6
4
6
1
3
5
3
5
2
4
6
4
6
1
3
5
3
5
2
4
6
4
6
TO
PC/LAN
1
3
5
7
3
5
7
2
4
6
4
6
8
TH
R
M
1
5V
PO
U
T
GN
D
PO
U
T
5V
TH
R
M
1
GN
D
F
A
NO
N2
FA
N
D
E
T
2
PI
C
K
TN
R
PTO
P
REG
1
2
2
1
2
2
CN1
LIVE
NEUTRAL
SW1
8
8
24V
NC
1
2
3
2
3
1
2
3
2
3
CN69
CIS HOME
SENSOR
SENSOR
POWER SW
AC INLET
PS55
CIS HOME
GND
LED
LED
1
2
3
2
3
1
2
3
2
3
CN68
CIS HOME
13
13
KX-MB2020/2030 ONLY
KX-MB2030 ONLY
14
KX-MB2000RUB/KX-MB2000RUW/KX-MB2020RUB/KX-MB2020RUW/KX-MB2030RUB/KX-MB2030RUW
6.2.
General Block Diagram
MAIN UNIT
SOC (IC300)
This custom IC is used for general MFP operations.
ROM (IC402)
This 8MB FLASH ROM contains all of the program instructions on the unit operations.
And support the backup of user setting and FAX receive data. (KX-MB2020/2030 ONLY)
And support the backup of user setting and FAX receive data. (KX-MB2020/2030 ONLY)
SYNCHRONOUS DYNAMIC RAM (IC400)
This 256Mbit SDRAM is used for CPU work and receiving memory and page memory.
POWER SUPPLY
DC-DC converters generate 3.3V and 1.2V for system power.
Regurator generates 5V for peripheral devices.
Regurator generates 5V for peripheral devices.
TEL/FAX I/F (KX-MB2020/2030 ONLY)
Composed of ITS circuit and NCU circuit.
3 ICs called SDAA(Silicon Direct Access Arrangement) control Telephone line, Speaker, and Handset.
3 ICs called SDAA(Silicon Direct Access Arrangement) control Telephone line, Speaker, and Handset.
READ SECTION
CIS Unit to read transmitted documents.
CIS Unit is connected to FLATBED transit Unit.
Scan data is converted by AFE(IC503).
CIS Unit is connected to FLATBED transit Unit.
Scan data is converted by AFE(IC503).
MOTOR
This model has 1 DC motor and 2 stepping motors.
IC300 drives the DC motor for printing.
IC502 and IC700 drive the stepping motor for Auto Document Feeder motor and CIS carriage.
IC300 drives the DC motor for printing.
IC502 and IC700 drive the stepping motor for Auto Document Feeder motor and CIS carriage.
LSU
Forms the images on the OPC DRUM by rotating polygon motor and reflecting the laser beam against polygon.
SENSORS
Composed of 2 switches and 6 sensors.
POWER SUPPLY BOARD
Supplies +24V and +7V to the Main unit and controls the Heat Lamp.
HIGH VOLTAGE POWER SUPPLY BOARD
Supplies bias need for the printing operation: bias of the DRUM, Developing and Transcription.
FIXING UNIT
Composed heat lamp, thermistor and thermostats.
1)
CPU
ARM9 operating at 250MHz.
2)
SDRAM Controller
Controls SDRAM Memory.
3)
USB Controller with PHY
Apply to USB2.0 HS
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 the 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. (KX-MB2020/
2030 ONLY)
2030 ONLY)
14) Analog Front End I/F
Controls the DAA device for TEL/FAX function. (KX-MB2020/2030 ONLY)
15) LAN Controller
Ethernet Control.
15
KX-MB2000RUB/KX-MB2000RUW/KX-MB2020RUB/KX-MB2020RUW/KX-MB2030RUB/KX-MB2030RUW
Main Board
DAA block
Sirius
Lite
DC motor
M
B
2000 series
System
Schematic
JST
8
Thermostat
Thermostat
Heater
AMP
8
(Blue)
AMP8
JST2
Regist
Solenoid
LSU
AMP5
AMP7
USB
FLASH
(6
4
Mbit)
SDRAM
(2
5
6
Mbit)
TEL
EXT
TEL
AMP2
Speaker
Operation Panel Board
Ope
G/A
AFE
IC503
2
Line
LCD
Motor
Driver
(FB)
AMP8
Flat Bed
Flat Bed
Thermistor
(Room)
Motor
Driver
(ADF)
Option
Handset
LAN
Phy
Varistor
Carriage motor
Color CIS
FFC 12
JST4
RP Sensor
Document Sensor
ADF motor
JST4
AMP4
(Blue)
FB Transit
AMP4
AMP1
3
Pick Up Solenoid
JST8
JST3
FAN (left)
JST2
HVPS
AMR
SENSOR
FAN (right)
Pick Up
Sensor
JST3
Register Sensor
AMP
4
PTOP Sensor
EXIT Sensor
AMP4
2
Thermistor
(Heater)
AMP5
AMP10
Toner Sensor
for KX-MB
2020 / 2030.
for
KX-MB2030 ONLY
24V
3.3V/1.8V
DC-
DC
Home
position
Sensor
AMP4
AMP3
Except
M
B
2025
Hand Set
SMPS
SW
POWER SW
AC INLET
: Harness for
Primary
: Harness for
PE
(PE)
IC502
IC400
IC505
IC402
IC700
IC300
IC100, IC101
16
KX-MB2000RUB/KX-MB2000RUW/KX-MB2020RUB/KX-MB2020RUW/KX-MB2030RUB/KX-MB2030RUW
6.3.
Main Board Section
6.3.1.
Data Flow
[FAX Tx]
1. An analog image data is output from CIS unit to IC503.
IC503 decode the analog data to digital data, and output to IC300.
Scanner I/F in IC300 process image data and store it in IC400
through SDRAM I/F.
2. CPU compress the data in IC400.
3. CPU transfer the data to MODEM
and output it to TEL LINE through DAA circuit.
IC503 decode the analog data to digital data, and output to IC300.
Scanner I/F in IC300 process image data and store it in IC400
through SDRAM I/F.
2. CPU compress the data in IC400.
3. CPU transfer the data to MODEM
and output it to TEL LINE through DAA circuit.
CN59
CN510
CN61
CN500
SDRAM
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Main Board
FB tr ansit Board
CN300
SDRAM
I/F
CN750
LAN
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
PHY
LAN
I/F
DSP
JBIG
CN100
IC750
CI S unit
LSU
TEL
LINE
PC
(KX-MB2020/2030 ONLY)
[FAX Rx]
1. FAX data is input from TEL LINE to MODEM in IC300
through DAA circuit.
And then store it in IC400 through SDRAM I/F.
2. CPU decompress the data in IC400.
3. Print I/F retrieve the data from IC400 and output it to LSU.
3. Print I/F retrieve the data from IC400 and output it to LSU.
CN59
CN510
CN61
CN500
SDRAM
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Main Board
FB tr ansit Board
CN300
SDRAM
I/F
CN750
LAN
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
PHY
LAN
I/F
DSP
JBIG
CN100
IC750
CI S unit
LSU
TEL
LINE
PC
(KX-MB2020/2030 ONLY)
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