Ncu Board; Before Removing The Ncu Pcb; Removing The Ncu Pcb; Dc Controller Pcb - Canon Color imageCLASS MF9170c Service Manual

Chapter 10
3) Press the [OK] key.
The flicker adjustment pattern (a pattern with horizontal stripes) is dis-
played in the LCD.
Pressing the right/left arrow keys, search for the area with the minimum
flicker.
F-10-57
4) Press the [OK] key.
5) Press the [Back] key.
The service mode operation is terminated.

10.5.12 NCU Board

10.5.12.1 Before Removing the NCU PCB

imageCLASS MF9170c / imageCLASS MF9150c / imageCLASS MF8450c
1) Remove the ETB unit.(page 7-31)Reference [Removing the ETB Unit]
2) Remove the rear cover unit.(page 10-11)Reference [Removing the Rear
Cover Unit]
3) Remove the left cover.(page 10-13)Reference [Removing the Left Cov-
er]
4) Remove the Electrical Components Cover.(page 10-15)Reference [Re-
moving the Electrical Components Cover]

10.5.12.2 Removing the NCU PCB

imageCLASS MF9170c / imageCLASS MF9150c / imageCLASS MF8450c
1) Remove the NCU PCB.
- 1 flat cable [2]
- 3 connectors [3]
- 2 screws [4]
10-22
0019-5736
0019-5737
[4]

10.5.13 DC Controller PCB

10.5.13.1 Before Removing the DC Controller PCB

imageCLASS MF9170c / imageCLASS MF9150c / imageCLASS MF8450c
1) Remove the ETB unit.(page 7-31)Reference [Removing the ETB Unit]
2) Remove the rear cover unit.(page 10-11)Reference [Removing the Rear
Cover Unit]
3) Remove the left cover.(page 10-13)Reference [Removing the Left Cov-
er]
4) Remove the right cover.(page 10-11)Reference [Removing the Right
Cover]
5) Remove the Electrical Components Cover.(page 10-15)Reference [Re-
moving the Electrical Components Cover]
6) Remove the Controller Box.(page 10-15)Reference [Removing the Con-
troller Box]
7) Remove the Off Hook PCB. (only of the machine with FAX)(page 10-
25)Reference [Removing the Off Hook PCB]

10.5.13.2 Removing the DC Controller PCB

imageCLASS MF9170c / imageCLASS MF9150c / imageCLASS MF8450c
1) Disconnect the 8 flat cable connectors [1] and the 10 connectors [2].
[3]
[1]
[3]
[2]
[4]
F-10-58
0019-8017
0019-0013