Pcbs And Their Functions; Fcu - Ricoh FAX550 Service Manual

DETAILED SECTION DESCRIPTIONS

PCBs AND THEIR FUNCTIONS

2.3. PCBs AND THEIR FUNCTIONS

2.3.1. FCU

Scanner
Sensors
Operation
Panel
CONTROL SIGNALS
Video Processing
Memory
SBU Video
(CCD) Processor
ROM RAM
MBU
Line Handset
NCU
Speaker
Modem AFE
CPU
Memory Back-up
Control
2-7
Scanner and Printer Drive
PSU
Components and Sensors
HIC
FCU
I/O
Port
DATA AND ADDRESS BUS
SAF
Memory
November 30th, 1991
Drivers
Thermal
Head
RS-232C
Interface
ECM
Memory
2