Panasonic KX-FLB883RU Service Manual ▷ View online
13
KX-FLB883RU
6.2.
General Block Diagram
MAIN UNIT
SOC (IC300)
This custom IC is used for general MFP operations.
ROM (IC402)
This 16MB 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.
DOUBLE DATA RATE SYNCHRONOUS DYNAMIC RAM (IC400 and IC401)
These 2pcs of 128Mbit DDR SDRAM are used for CPU work and receiving memory and page memory.
POWER SUPPLY
DC-DC converters generate 3.3V, 2.5V and 1.2V for system power.
Regurator generates 5V for peripheral devices.
Regurator generates 5V for peripheral devices.
TEL/FAX I/F
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 6 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
ARM11 operating at 400MHz.
2)
DDR SDRAM Controller
Controls DDR (Double Data Rate) 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.
14) Analog Front End I/F
Controls the DAA device for TEL/FAX function.
15) LAN Controller
Ethernet Control.
14
KX-FLB883RU
DA
A bl
oc
k
SoC
(Sir
iu
s)
AC
i
n
le
t
Thermostat
Th
er
mo
st
at
He
at
er
USB
FL
AS
H
(128M
bi
t)
DDR
(128M
bi
t
)
TEL
EXT
TEL
Op
er
at
io
n Pane
l Bo
ar
d
Op
e
G/
A
AF
E
2L
in
e
LC
D
Mo
to
r
Dr
iv
er
(FB)
Fl
at
B
e
d
Fl
at
B
e
d
Th
er
mi
st
or
(Room)
Mo
to
r
Dr
iv
er
(A
DF)
Hook
SW
LA
N
Ph
y
Va
ri
st
or
Carr
ia
ge
m
o
to
r
Co
lo
r CI
S
RP S
e
n
so
r
Document
Sensor
AD
F mo
to
r
DDR
(128M
bi
t
)
Ho
le
IC
Dr
um
Sens
or
Pick Up Sensor
Paper Sensor
EXIT Sensor
Th
er
mist
or
(He
at
er
)
Toner Sensor
Home
Position
Sensor
Cover sensor
AD
ADF
PTOP S
e
n
so
r
Regist Sensor
Main
B
o
a
rd
CN10
2
FB Tr
an
si
t
CN
4
CN
5
CN
3
CN
1
C
N6
CN
2
CN
3
CN2
CN1
CN
6
CN
1
CN20
0
CN17
CN20
1
CN10
1
CN10
0
CN50
5
CN50
4
CN50
2
CN50
1
CN500
SMPS
CN10
1
CN
2
CN
1
AC cord set
CN
9
CN
8
CN
7
CN51
1
CN510
CN50
9
CN51
4
CN51
2
CN50
3
CN30
0
CN75
0
CN
8
CN10
CN
9
CN11
CN13
Rela
y
Bo
ar
d
CN14
CN12
CN16
CN15
CN
5
CN12
CN11
CN
4
CN
7
Pick Up Solenoid
Resist Solenoid
Bin Solenoid
HVPS
FA
N
(l
e
ft
)
FA
N (r
ight
)
In
te
rl
oc
k
SW
JS
T3
Speaker
Hand Set
DC motor
LSU
IC300
IC402
IC
503
IC
5
0
2
IC
7
00
IC
401
IC
400
IC100
IC101
IC
1
IC
1
0
1
15
KX-FLB883RU
6.3.
Main Board Section
6.3.1.
Data Flow
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
and IC401 through DDR SDRAM I/F.
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
and IC401 through DDR SDRAM I/F.
2.
CPU compress the data in IC400 and IC401.
3.
CPU transfer the data to MODEM
and output it to TEL LINE through DAA circuit.
and output it to TEL LINE through DAA circuit.
CN3
CN510
CN4
CN500
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC300
Main Board
FB transit Board
CN300
CN750
LA N
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
PHY
LAN
I/F
DSP
JBIG
CN100
IC750
IC400
DDR
SDRAM
IC401
DDR
SDRAM
I/F
DDR
SDRAM
CIS unit
LSU
TEL
LIN E
PC
Data Flow [ FAX Tx ]
1.
FAX data is input from TEL LINE to MODEM in IC300
through DAA circuit.
And then store it in IC400 and IC401 through DDR SDRAM I/F.
And then store it in IC400 and IC401 through DDR SDRAM I/F.
2.
CPU decompress the data in IC400 and IC401.
3.
Print I/F retrieve the data from IC400 and IC401,
and output it to LSU.
CN3
CN510
CN4
CN500
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC300
Main Boar d
FB transit Board
CN300
CN750
LA N
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
PHY
LAN
I/F
DSP
JBIG
CN100
IC750
IC400
DDR
SDRAM
IC401
DDR
SDRAM
I/F
DDR
SDRAM
CIS unit
LSU
TEL
LIN E
PC
Data Flow [ FAX Rx ]
16
KX-FLB883RU
1. An analog image data is output from CISunit 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 and IC401 through DDR SDRAM I/F.
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 and IC401 through DDR SDRAM I/F.
2. If necessary, the data is compressed via DSP.
3. When you use the LAN, the data is output to PC
3. When you use the LAN, the data is output to PC
through the LAN I/F and PHY(IC750).
or
When you use the USB, the data is output to PC
through the USB I/F.
through the USB I/F.
CN3
CN510
CN4
CN500
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC300
Main Boar d
FB transit Board
CIS unit
LSU
CN300
CN750
LA N
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
PHY
LAN
I/F
DSP
JBIG
CN100
IC750
IC400
DDR
SDRAM
IC401
DDR
SDRAM
I/F
DDR
SDRAM
TEL
LIN E
PC
Data Flow [ PC Scan ]
1.The print data is output from PC through LAN
and pass the PHY(IC750) and LAN I/F in IC300.
and pass the PHY(IC750) and LAN I/F in IC300.
or
The print data is output from PC through USB
and pass the USB I/F in IC300.
Then, the data is stored in IC400 and IC401 through
DDR SDRAM I/F.
and pass the USB I/F in IC300.
Then, the data is stored in IC400 and IC401 through
DDR SDRAM I/F.
2.
Print I/F retrieve the data from IC400 and IC401,
and output it to LSU.
and output it to LSU.
CN3
CN510
CN4
CN500
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC300
Main Boar d
FB transit Board
CN300
CN750
LA N
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
PHY
LAN
I/F
DSP
JBIG
CN100
IC750
IC400
DDR
SDRAM
IC401
DDR
SDRAM
I/F
DDR
SDRAM
CIS unit
LSU
TEL
LIN E
PC
Data Flow [ PC print ]
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