Service manual

FO-IS125N
4 – 1
FO-IS125N
Service Manual
CHAPTER 4. DIADRAMS
[1] Block diagram
Scanner Unit
Operation Panel Unit
LED
Document Sensor
LCD
20chr. x 2lines
CIS
200dpi, B/W
Scanner
AFE Decoder
Key Matrix 70keys
Stepper Motor
(Scanner Motor)
Sense
Printer Engine
LAN Controller
LAN9118-MT
RJ-45
Integrated
Magnetics
OPTICAL UNIT
(LSU)
LAN
(Ethernet)
25MHz
High Voltage
PWB Unit
SDRAM
CON
SDRAM
32MB
Power Supply
PWB Unit
Serial Flash-1 (ROM)
2MB
SPI
Fuser Unit Serial Flash-2 (Data1)
2MB
Heater Lamp
Thermistor
ADC Select Serial Flash-3 (Data2)
2MB
(3bit)
Serial Flash-4 (Data3)
2MB
Sensors
Serial Flash-5 (Data4)
2MB
Stepper Motor
(Printer Motor)
Silicon DAA Block
Solenoid
for Pick-up
V.34 Fax Modem
Host Side Device
CX95110
Line Side Device
CX20548-11Z
PSTN
SPI
Fan Motor
Handset IA
CX20548-12Z
Handset
RTC
Fax Controller
CX95410-12Z
Decoder
Lithium Battery (+3V) 32.768kHz 24MHz
28.224MHz