Canon iR105 Service Manual page 227

8) Disconnect the cable [1] from the hard
disk; then, remove the 8 screws [2], and
detach the main controller PCB [3].
f. When Replacing the Main Controller PCB
1) Replace the main controller PCB.
2) Detach the following from the existing PCB, and mount them to the new PCB:
• SD-RAM [1]
• BOOT-ROM [2]
• counter memory PCB [3]
3) Assemble the machine; then, connect the power plug to the power outlet, and turn on the
main power switch.
COPYRIGHT© 2001 CANON INC.
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CHAPTER 2 NEW FUNCTIONS
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