Basic Construction; Outline Of The Electrical Circuitry - Canon DADF-N1 Service Manual

2.1 Basic Construction

2.1.1 Outline of the Electrical Circuitry

The machine's electrical mechanisms are controlled by its reader controller PCB. The CPU
of the reader unit interprets signals from the sensors and the devices connected to it, and
generates signals used to drive such DC loads as motors and solenoids. The ADF controller
PCB does not have memory areas, and data associated with service mode and the like are
stored in the EEPROM found on the reader controller PCB.
ADF controller PCB
CPU
(IC1)
Serial
communication
CPU
Reader controller PCB
F-2-1
+5V
+24V
DC5V
Power
supply
(IC2)
13V
24V
EEPROM
Motors
Senso
Solenoids
Clutches
Original
Placement
indicator
LED PCB
Chapter 2
0006-2231
2-1