Canon ImageCLASS MF4690 Service Manual - page 104
Chapter 9
9-6
9.3.10 Analog Processor PCB
9.3.10.1 Preparation for Removing the Analog processor
PCB
0016-5021
1) Remove the front cover.
2) Remove the right cover.
3) Remove the left cover.
4) Remove the rear cover.
5) Remove the frame [1].
- 11 screws [2]
F-9-28
9.3.10.2 Removing the Analog processor PCB
0016-5022
1) Remove the Analog processor PCB [1].
- 1 connector [2]
- 2 screws [3]
F-9-29
9.3.11 NCU Board
9.3.11.1 Preparation for Removing the NCU Board
0016-5015
1) Remove the front cover.
2) Remove the right cover.
3) Remove the left cover.
4) Remove the rear cover.
5) Remove the frame [1].
- 11 screws [2]
F-9-30
9.3.11.2 Removing the NCU Board
0016-5016
1) Remove the NCU board [1].
- 1 connector [2]
- 3 screws [3]
F-9-31
9.3.12 Power Supply PCB
9.3.12.1 Preparation for Removing the Power Supply
Board
0016-5017
1) Remove the front cover.
2) Remove the right cover.
3) Remove the left cover.
4) Remove the rear cover.
9.3.12.2 Removing the Power Supply Board
0016-5018
1) Remove the power supply board [3].
- 2 connectors [1]
- 6 screws [2]
F-9-32
9.3.13 High-voitage Power Supply PCB
9.3.13.1 Preparation for Removing the High Voltage
Power Supply Board
0016-5019
1) Remove the front cover.
2) Remove the right cover.
3) Remove the left cover.
4) Remove the rear cover.
5) Remove the control panel.
6) Remove the printer cover.
7) Remove the upper cover.
9.3.13.2 Removing the High Voltage Power Supply Board
0016-5020
1) Unhook the 2 claws [1], and remove the fixing guide [2].