Panasonic KX-MB1500UCW / KX-MB1520UCB Service Manual ▷ View online
17
KX-MB1500UCW/KX-MB1520UCB
6.3.
Main Board Section
6.3.1.
Data Flow
[FAX Tx]
(KX -MB1520 ONLY)
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.
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
3. CPU transfer the data to MODEM and output it to TEL LINE
through AFE IC and analog circuit.
CN510
C
N
50
0/
501
SDRAM
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Main Board
CIS unit
LSU
PC
CN
3
0
0
SDRAM
I/F
USB
USB
I/F
CPU
Analog
Circuit
Circuit
IC200
TEL
LINE
DSP
JBIG
CN
1
0
0
AFE
[FAX Rx]
(KX -MB1520 ONLY)
1. FAX data is input from TEL LINE to MODEM in IC300
through Analog DAA circuit and AFE IC.
And then store it in IC400 through SDRAM I/F.
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.
CN510
CN
5
0
0
SDRAM
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Main Board
LSU
PC
CN
3
0
0
SDRAM
I/F
USB
USB
I/F
CPU
TEL
LINE
DSP
JBIG
CN
1
0
0
CIS unit
Analog
Circuit
Circuit
IC200
AFE
18
KX-MB1500UCW/KX-MB1520UCB
[PC Scan]
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.
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.
CN510
CN
5
0
0
SDRAM
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Main Board
LSU
PC
CN
3
0
0
SDRAM
I/F
USB
USB
I/F
CPU
TEL
KX-MB1520 ONLY
LINE
DSP
JBIG
CN
1
0
0
CIS unit
Analog
Circuit
Circuit
IC200
AFE
[PC print]
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.
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.
CN510
CN
5
0
0
SDRAM
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Main Board
LSU
PC
CN
3
0
0
SDRAM
I/F
USB
USB
I/F
CPU
TEL
LINE
DSP
JBIG
CN
1
0
0
CIS unit
Analog
Circuit
Circuit
IC200
AFE
KX-MB1520 ONLY
19
KX-MB1500UCW/KX-MB1520UCB
CN510
CN
5
0
0
SDRAM
MODEM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Main Board
LSU
[Copy]
PC
CN
3
0
0
SDRAM
I/F
USB
USB
I/F
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.
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.
CPU
TEL
LINE
DSP
JBIG
CN
1
0
0
CIS unit
Analog
Circuit
Circuit
IC200
IC203
IC203
AFE
KX-MB1520 ONLY
20
KX-MB1500UCW/KX-MB1520UCB
Description of Pin Distribution (IC300) SOC (System On Chip)
PIN NO.
PinName
I/O
POWER SUPPLY VOLTAGE
EXPLANATION
A02
LEDONB
O
3.3V
SCANNER INTERFACE
A03
NCCDON
O
3.3V
SCANNER INTERFACE
A04
AFEMCLK
O
3.3V
SCANNER INTERFACE
A05
NCCDCP
O
3.3V
NOT USED
A06
CCDCLK
O
3.3V
NOT USED
A07
PIO29
O
3.3V
OPERATION PANEL INTERFACE
A08
PIO57
O
3.3V
CARRIAGE MOTOR INTERFACE
A09
PIO53
O
3.3V
CARRIAGE MOTOR INTERFACE
A10
PIO50
O
3.3V
CARRIAGE MOTOR INTERFACE
A11
PIO46
O
3.3V
FAN1 CONTROL
A12
PIO42
O
3.3V
DC MOTOR INTERFACE
A13
NFRCE
O
3.3V
FLASH MEMORY CHIP SELECT
A14
FRMD0
I/O
3.3V
FLASH MEMORY DATA BUS 0
A15
FRMD3
I/O
3.3V
FLASH MEMORY DATA BUS 3
A16
FRMD7
I/O
3.3V
FLASH MEMORY DATA BUS 7
A17
FRMA3
O
3.3V
FLASH MEMORY ADDRESS BUS 3
A18
FRMA6
O
3.3V
FLASH MEMORY ADDRESS BUS 6
A19
FRMA10
O
3.3V
FLASH MEMORY ADDRESS BUS 10
A20
THRMAVDD
-
3.3V
POWER SUPPLY
A21
FRMA11
O
3.3V
FLASH MEMORY ADDRESS BUS 11
A22
FRMA15
O
3.3V
FLASH MEMORY ADDRESS BUS 15
A23
FRMA17
O
3.3V
FLASH MEMORY ADDRESS BUS 17
A24
FRMA20
O
3.3V
FLASH MEMORY ADDRESS BUS 20
A25
FRMA22
O
3.3V
FLASH MEMORY ADDRESS BUS 22
AA01
SDMD8
I/O
3.3V
SDRAM DATA BUS 8
AA02
SDMD9
I/O
3.3V
SDRAM DATA BUS 9
AA03
SDMA7
O
3.3V
SDRAM ADDRESS BUS 7
AA04
SDMA6
O
3.3V
SDRAM ADDRESS BUS 6
AA23
VDD1.2
-
1.2V
POWER SUPPLY
AA24
AFERST
O
3.3V
NCU INTERFACE
AA25
RING
I
3.3V
NCU INTERFACE
AA26
EXTINT
I
3.3V
NCU INTERFACE
AB01
SDMD10
I/O
3.3V
SDRAM DATA BUS 10
AB02
SDMD11
I/O
3.3V
SDRAM DATA BUS 11
AB03
SDMA5
O
3.3V
SDRAM ADDRESS BUS 5
AB04
VDD1.2
-
1.2V
POWER SUPPLY
AB23
VSS
-
GND
GND
AB24
BTXD
O
3.3V
NCU INTERFACE
AB25
BRXD
I
3.3V
NCU INTERFACE
AB26
AFECLK
O
3.3V
NCU INTERFACE
AC01
SDMD12
I/O
3.3V
SDRAM DATA BUS 12
AC02
SDMD13
I/O
3.3V
SDRAM DATA BUS 13
AC03
SDMA4
O
3.3V
SDRAM ADDRESS BUS 4
AC04
VSS
-
GND
GND
AC05
VSS
-
GND
GND
AC06
VDD1.2
-
1.2V
POWER SUPPLY
AC07
TXD0
O
3.3V
ETHERNET INTERFACE
AC08
TX_ER
O
3.3V
ETHERNET INTERFACE
AC09
RXD1
I
3.3V
ETHERNET INTERFACE
AC10
VDD3.3
-
3.3V
POWER SUPPLY
AC11
TEST
I
3.3V
NOT USED
AC12
USBREXT
I
3.3V
USB INTERFACE
AC13
VDD1.2
-
1.2V
POWER SUPPLY
AC14
VDD3.3
-
3.3V
POWER SUPPLY
AC15
USBXIN
I
3.3V
CRYSTAL(12MHz) INPUT
AC16
LSI_SCAN_ENABLE
I
3.3V
NOT USED
AC17
VDD1.2
-
1.2V
POWER SUPPLY
AC18
NWDTRST
O
3.3V
WATCH DOG TIMER RESET OUTPUT
AC19
LSI_TN
I
3.3V
NOT USED
AC20
PSCIO2
I
3.3V
INPUT PORT (FANDET1)
AC21
PSCIO6
O
3.3V
NOT USED
AC22
VDD1.2
-
1.2V
POWER SUPPLY
AC23
VSS
-
GND
GND
AC24
ATXD
O
3.3V
NCU INTERFACE
AC25
BBITCLK
I/O
3.3V
NCU INTERFACE
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