Inputs To And Outputs From The Major Pcbs - Canon GP405 Service Manual

CHAPTER 2 BASIC OPERATION PROVIDES
E. Inputs to and Outputs from the Major PCBs
1. Image Processor Circuit
• Inputs to and Outputs from the Image Processor Circuit
J301
Analog
processor
PCB
J113
DC controller
PCB
J510
-4
Beam
-3
detection (BD)
-2
PCB
-1
J500
Laser driver
PCB
J461
Control Card
V (accessory)
Fax battery
board
2-10
Image processor PCB
J706
Checks are not
possible in the field,
and explanations
are omitted.
J714
Checks are not
possible in the field,
and explanations
are omitted.
5V
J708
-1
-2
BD (input)
-3
-4
J717
See Figure 5-201.
J709
-2
5V
-3
-4
-5
1 2 3 4
J718
-1
-2
-3
-4
1 2 3 4
-5
Low-voltage power
supply PCB
Figure 2-106
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
5V
J712
DSZ0
5V
J711
DSZ1
5V
J703
DSZ2
5V
J704
DSZ3
J8202
J8102
J715 J8002
System mother board
J8005
J716
J701
J440
J603
Fax board
Original size
sensor 0
Original size
sensor 1
Original size
sensor 2
Original size
sensor 3
J8204 J8
Printer mother
Printer
board
board
J8203
J8103
PDL
I/F board
J8101
J8003
J8004 J8006
J8301 J8501
SCSI
Interface
board