Main Board Section - Panasonic KX MC6020 - Color Laser - All-in-One Service Manual

6.3.

Main Board Section

6.3.1. Data Flow
Data Flow [FAX Tx]
TEL
LINE
PC
LAN
USB
Data Flow [FAX Rx]
TEL
LINE
PC
LAN
USB
CISunit
Main Board
IC100
IC101
MODEM
DAA
IC451
LAN USB
PHY
I/F I/F
Color
Gamma
Space
Dither
Conv.
Image Processing
CIS unit
Main Board
IC100
IC101
DAA MODEM CPU
IC451
LAN USB
PHY
I/F I/F
Color
Gamma enlargement
Space
Dither
Conv.
Image Processing
C-Wyle
Encode
1. An analog image data is output from CIS unit to IC500.
IC500 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 in IC300 compress the data in IC400 and IC401.
3. CPU in IC300 transfer the data to MODEM in IC300
and output it to TEL LINE through DAA (IC100 and IC101) circuit.
CIS transit Board
CN441
CN502
IC500
AFE
Scanner
CPU
I/F
PCI
JBIG DSP
I/F
enlargement
Image PCI
/reduction
I/F
Filter
C-Wyle
C-Wyle
Print I/F
Encode
Decode
1.FAX data is input from TEL LINE to MODEM in IC300 through DAA
(IC100 and IC101) circuit. And then store it in IC400 and IC401 through
DDR SDRAM I/F.
2. CPU in IC300 decompress the data in IC400 and IC401.
3. PCI I/F in IC300 retrieve the data from IC400 and IC401 and output it to IC600.
And PCI I/F in IC600 retrieve the data from IC300 and store it to IC960 through
DDR SDRAM I/F.
4. Image processing in IC600 retrieve the the data from IC960.
Image processing does enlargement /reduction processing, dithering processing
CIS transit Board
and store the data in IC960.
5. C-wyle(*1) Encode in IC600 encode the data and store the data in IC960.
6. C-wyle Decode in IC600 decode the data and output it to Print I/F .
CN441
And Print I/F in IC600 retrieve the data from C-wyle Decode and output it to LSU.
CN502
IC500
AFE
IC300
Scanner
I/F
DDR
SDRAM
I/F
PCI
JBIG DSP
I/F
IC600
PCI
Image
I/F
/reduction Filter
DDR
SDRAM
I/F
C-Wyle
Print I/F
Decode
35
IC300
DDR
SDRAM
IC400
I/F
DDR
SDRAM
IC401
IC600
IC600
DDR
DDR
SDRAM
SDRAM
I/F
(*1)
Encoding Method by PCC
IC400
DDR
SDRAM
IC401
IC960
DDR
SDRAM
LS U
KX-MC6020HX
LS U