Specifications

COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON DADF-J1 REV.0 MAR.2001
CHAPTER 5 TROUBLESHOOTING
5-63
4 LEDs, Check Pins, and Switches by PCB
Of the LEDs and check pins found in the machine, those used in the field are discussed:
Do not touch any check pins that are not indicated in the table. They are for
the factory, and require special tools and high precision.
4.1 ADF Controller PCB
Some LEDs emit light when they are off because of leakage current. This is
a normal condition, and must be kept in mind.
4.1.1 Arrangement of Components
F05-401-01
J1
J2
J5
J3
J6 J7 J8 J9 J10 J11
J14
IC2
J13
J12
J4
FU2
CB1
SW1
LED2
IC1
SW4SW3SW2