Olivetti d-Copia 163MF Service Manual page 134

CCD PWB
CCD
image
sensor
Stepping
Scanner
motor
motor
driver IC
Motor driver PWB
Original Stepping
feed motor
motor driver IC
Operation panel PWB
Power source PWB
Power
24 V
5 V
2-3-8
J11 Vos
AFE
VD [0:7]
J6
CCD control
Motor control
Logic IC
J9
Operation
J5
panel control
circuit
Power tramsform
Power
24 V
J1
24 V
5 V
3.3 V
1.8 V
Figure 2-3-6 d-Copia163MF Main PWB block diagram
Main PWB
SDRAM
32 MB
ASIC
(CPU)
System bus
Flash-ROM
4 MB
Over driver 24 V
Normal 16 V
Lamp inverter
PWM
12 V
12 V
regulator
Service Manual
NVRAM
2 kbytes
Real time
clock
Video I/F
Serial
communication I/F
USB 2.0
J3
PC
J12
5 V
5 VA
regulator
Glue
logic
J10
Engine/high
voltage PWB
Scanner unit
open/close
switch
Y107330-8