Canon GP605 Service Manual page 733

PCBs
Notation
1 CCD PCB
2 Image processor PCB
3 Page memory PCB
4 MFC PCB
5 System motherboard
6 DC controller PCB
7 Laser driver PCB 1
8 Laser driver PCB 2
9 Scanner motor drier PCB
10 DC power supply PCB
11 HVT-DC1 PCB
12 HVT-AC PCB
13 Bi-Centronics PCB
14 Relay PCB
15 Heater driver PCB
16 Fluorescent inverter PCB
17 Drum heater control PCB
18 BD PCB
19 Potential control PCB
20 Options counter PCB
22 Environment sensor PCB
23 No-stacking PCB
24 Cassette 3 paper level
detection PCB
25 Cassette 4 paper level
detection PCB
26 Laser scanner motor drier
PCB
27 Intensity control PCB
28 Intensity sensor PCB
29 Original orientation
detection PCB
30 Control panel CPU PCB
31 Control panel key and
LED PCB
32 Control panel main
switching PCB
33 Control panel volume
PCB
COPYRIGHT © 1999 CANON INC.
Name
CCD drive/analog image processing
Digital image processing
Image data storage
System control
Signal relay
DC load control
Laser diode drive
Laser intensity control
Scanner motor driver
DC power supply
High-voltage DC component generation
High-voltage AC component generation
Downloading I/F
DC power supply distribution/supply
Cassette heater drive
Fluorescent lamp activation control
Drum heater drive
Laser beam detection
Drum surface potential control
Options counter drive
Machine internal temperature/humidity detection
Duplexing feeding unit drive
Cassette 3 paper level detection
Cassette 4 paper level detection
Laser scanner motor drive
Fluorescent lamp intensity control
Fluorescent lamp intensity detection
Original orientation detection
Control panel control
Control panel key input, LED indication
Control panel power switch
Control panel contrast adjustment
CANON GP605/605V REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 13 TROUBLESHOOTING
Description
13-141