Pcbs; Variable Resistors (Vr), Light-Emitting Diodes (Led), And Check Pins By Pcb; Outline; Adf Controller Pcb - Canon DADF-Q1 Service Manual

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Chapter 4

4.5.3 PCBs

4.6 Variable Resistors (VR), Light-Emitting Diodes (LED), and Check Pins by PCB

4.6.1 Outline

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.

4.6.2 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.
Arrangement of Components

4.6.3 DIP Switch Functions

The DIP switch (SW1) on the ADF controller PCB provides the following functions according to how it is set:
4-34
Name
Notation
Fan
FM1
1
3
2
5
F-4-155
T-4-29
Reference
Name
1

ADF controller PCB

2
Reversal motor driver PCB
3
Belt motor driver PCB
4
Pickup tray PCB
5
Indication LED PCB
J16
J15
J1
J2
J4
CB1
SW1
J5
DSP1
SW4SW3SW2
J3
J6
J7
F-4-156
Description
Belt motor cooling fan
4
J14
J13
J12
IC8
J8
J9
J10
J11
0011-7883
0011-7884
0011-7886
0011-7887

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