Read Panasonic KX-MB1500RUB / KX-MB1500RUW / KX-MB1520RUB / KX-MB1520RUW / KX-MB1500RUD Service Manual online
17
KX-MB1500RUB/KX-MB1500RUW/KX-MB1520RUB/KX-MB1520RUW
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 DAA 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
DAA
IC200
TEL
LINE
LAN
I/F
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
LAN
I/F
DSP
JBIG
CN
1
0
0
CIS unit
Analog
DAA
IC200
AFE
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