Removing The Dc Controller Pcb - Canon MF720 Series Service Manual

2. Removing the Controller Cover.(Refer to
the Controller Cover" on page
3. Removing the Wireless LAN PCB.(MF728Cdw /
727Cdw / 724Cdw only) (Refer to
Wireless LAN PCB (MF728Cdw / 727Cdw / 724Cdw)"
on page 157)
4. Removing the Main Controller PCB.(Refer to
"Removing the Main Controller PCB" on page
■ Procedure
1. Remove the Main Controller Support Plate [1].
• 1 Wire Saddle [2]
• 1 Harness Guide [A]
• 7 Screws [3]
• 2 Hooks [4]
2x
[4]
[A]
[2]
[3]
Removing the DC Controller
PCB
CAUTION:
When replacing the DC Controller PCB, be sure to
perform the works to be done before replacing the DC
Controller PCB (Refer to
Controller PCB" on page
after replacing the DC Controller PCB (Refer to
Replacing the DC Controller PCB" on page
■ Before Replacing the DC Controller
PCB
1. Execute the following service mode to restore the
DC Controller setting values that were backed up in
the previous step.
COPIER > FUNCTION > VIFFNC > STOR-DCN
"Removing
157)
"Removing the
7x
[1]
[4]
"Before Replacing the DC
162) and the works be done
"After
163).
■ Preparation
1. Removing the Right Cover.(Refer to
Right Cover" on page
2. Removing the Left Cover.(Refer to
Left Cover" on page
3. Removing the Rear Upper Cover.(Refer to
157)
"Removing the Rear Upper Cover" on page
4. Removing the ADF Unit + Reader Unit.(Refer to
"Removing the ADF Unit + Reader Unit" on page
130)
5. Removing the Right Front Cover.(Refer to
"Removing the Right Front Cover" on page
6. Removing the Upper Cover.(Refer to
Upper Cover" on page
■ Procedure
1. Remove the Harness Cover Plate [1].
• 2 screws [2]
[3]
2. Disconnect the 5 flat cables [1].
[1]
[1]
162
4. Disassembly/Assembly
120)
"Removing the
118)
125)
[2]
2x
[1]
5x
"Removing the
123)
121)
"Removing the
[2]
[1]