Canon iR C6800 Series Service Manual page 166

Chapter 4
8) Slide the main controller box [1] toward the
delivery side.
F-4-55
When sliding the DC controller box, be sure to
take care so as not to damage the connector [2] in the
joint to the DC controller PCB.
[2]
F-4-56
9) Remove the 8 screws [1], and detach the main
controller PCB [2].
[1]
[1]
F-4-57
4-34
[1]
[1]
F-4-58
4.7.2.6 After Replacing the
Main Controller PCB (main)
After mounting the main controller PCB (main), be
sure to attach all PCBs you may have removed before
replacement:
[1] boot ROM
[2] image memory (SDRAM)
[3] expansion bus PCB
[4] main controller PCB (sub)
[5] Ethernet board
[1]
[2]
F-4-59
0003-6168