Panasonic KX-MB773RU / KX-MB773UA (serv.man8) Service Manual ▷ View online
13
KX
-MB
-MB
77
3RU
/U
A
Main Board
DAA block
(TNV)
SoC
(sirius
Lite)
Polygon motor
(LSU)
USB
FLASH
(32/64Mbit)
SDRAM
(256Mbit
)
TEL
EXT
TEL
Speaker
Operation Panel Board
Ope
G/A
AFE
2Line
LCD
Motor
Driver
(FB)
Flat Bed
Flat Bed
Thermistor
(Room)
(Room)
Motor
Driver
(ADF)
Hand Set
Hook SW
Varistor
Carriage motor
Color CIS
FB Transit
CN701
CN700
CN509
CN750
CN300
CN100
CN101
CN200
CN510
CN500
CN501
CN502
CN504
CN505
CN511
CN508
CN507
CN514
CN506
CN58
CN57
CN56
CN61
CN62
CN60
CN59
CN2
CN1
DC motor
Resist Solenoid
Pick-up Solenoid
HVU
FAN motor (left)
Hole
IC
Pick Up Sensor
Toner Sensor
CN64
CN67
CN66
CN65
CN51
CN63
CN53
CN52
CN50
FAN motor (right)
Thermostat
Heater lamp
SWPS
CN101
AC inlet
Thermistor
(Heater)
(Heater)
Thermostat
AC cord set
DC-DC
CONVERTER
CONVERTER
ADF motor
IC400
IC402
IC300
IC100, IC101
IC50
IC503
IC502
IC700
IC1
n
RP Se sor
Document Sensor
t r
or
Regis e Sens
e
PTOP S nsor
IT Sensor
EX
14
KX-MB773RU/UA
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
Mai n Board
FB tr ansit Board
CN300
SDRAM
I/F
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
LAN
I/F
DSP
JBIG
CN100
CI S unit
LSU
TEL
LINE
PC
[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
Mai n Board
FB tr ansit Board
CN300
SDRAM
I/F
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
LAN
I/F
DSP
JBIG
CN100
CI S unit
LSU
TEL
LINE
PC
15
KX-MB773RU/UA
[PC Scan]
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
through SDRAM I/F.
Scanner I/F in IC300 process image data and store it in IC400
through SDRAM I/F.
2. If necessary, the data is compressed via DSP.
3. The data is output to PC through the USB I/F.
3. The data is output to PC through the USB I/F.
CN59
CN510
CN61
CN500
SDRAM
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Mai n Board
FB tr ansit Board
CI S unit
LSU
CN300
SDRAM
I/F
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
LAN
I/F
DSP
JBIG
CN100
TEL
LINE
PC
[PC print]
CN59
CN510
CN61
CN500
SDRAM
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Mai n Board
FB tr ansit Board
CN300
SDRAM
I/F
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
LAN
I/F
DSP
JBIG
CN100
1.The print data is output from PC through USB
and pass the USB I/F in IC300.
then the data is stored in IC400 through SDRAM I/F.
2. Print I/F retrieve the data from IC400 and output it to LSU.
CI S unit
LSU
TEL
LINE
PC
16
KX-MB773RU/UA
[Copy]
CN59
CN510
CN61
CN500
SDRAM
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Mai n Board
FB tr ansit Board
CN300
SDRAM
I/F
USB
USB
I/F
CPU
DAA
IC100
IC101
IC101
LAN
I/F
DSP
JBIG
CN100
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
through SDRAM I/F.
Scanner I/F in IC300 process image data and store it in IC400
through SDRAM I/F.
2. If necessary, the data is compressed via JBIG.
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.
CI S unit
LSU
TEL
LINE
PC
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