4After Replacing The Main Controller Pcb (Main); 5After Repacking The Sram Board - Canon iR C6800 Series Service Handbook

[3]
[3]
[4]
[3]
[1]
[3]
[2]
F-2-59
Supplementary Information:
If the harness [1] is away from the side plate [4] of the
DC controller box, wrong detection (E070-0102) of
the ITB home position tends to occur because of
noise.
2.6.4 After Replacing the
Main Controller
(main)
After mounting the main controller PCB (main), be
sure to mount the PCBs you may have removed before
replacing the main controller PCB:
1 boot ROM
2 image memory (SDRAM)
3 expansion bus PCB
4 main controller PCB (sub)
5 UFR board (optional)
6 Ethernet board
PCB
0004-1717
[1]
F-2-60
[3]
[4]
[6]
[5]
F-2-61
2.6.5 After Repacking the
SRAM Board
be sure to inform the sure that replacing the
SRAM board will lead to the loss of all image data
held in Boxes, and obtain his/her consent before
starting the work.
- if you are replacing the SRAM board, be sure to
use a new one. The use of a used SRAM board
(used in a different printer) will likely cause
malfunction.
1) Replace the SRAM board, and turn on the main
power (so that the machine will run an auto
initialization session).
2) When the control panel indicates the message
Chapter 2
[2]
0004-1721
2-51