Main Board Section; Data Flow - Panasonic UF-5500 Service Manual

6.3.

Main Board Section

6.3.1.

Data Flow

[FAX Tx]
Main Board
TEL
LINE
UF-5500 ONLY
PC
LAN
USB
[FAX Rx]
TEL
LINE
UF-5500 ONLY
PC
LAN
USB
CI S unit
CIS Relay Board
IC100
IC101
MODEM CPU
DAA
IC750
LAN USB
PHY
I/F I/F
CI S unit
CIS Relay Board
Main Board
IC100
IC101
MODEM CPU
DAA
IC750
LAN USB
PHY
I/F I/F
1. An analog image data is output from CIS unit to IC503.
IC503 decodes the analog data to digital data, and outputs to IC300.
Scanner I/F in IC300 process image data and stores it in IC400
through SDRAM I/F.
2. CPU compresses the data in IC400.
3. CPU transfer the data to MODEM
and outputs it to TEL LINE through DAA circuit.
CN59
CN510
AFE IC503
IC300
Scanner
Print I/F
I/F
SDRAM
I/F
JBIG DSP
1. FAX data is input from TEL LINE to MODEM in IC300
through DAA circuit.
And then stored it in IC400 through SDRAM I/F.
2. CPU decompresses the data in IC400.
3. Print I/F retrieves the data from IC400 and outputs it to LSU.
CN59
CN510
IC503
AFE
IC300
Scanner
Print I/F
I/F
SDRAM
I/F
JBIG DSP
25
UF-5500 / 4500
LSU
IC400
SDRAM
LSU
IC400
SDRAM