KX-MB763RU (serv.man13) - Panasonic Fax Service Manual (repair manual). Page 14

14

[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.

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

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. 

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

LAN

I/F

DSP

JBIG

CN100

CI S unit

LSU

TEL

LINE

PC