Canon FAX L1000 Service Manual page 414

FAX-L1000 Chapter 5: Appendix
b-5) Removing the memory board
When removing the memory board, perform the steps in b-3) Attaching memory boards
in reverse order. Be sure to remove the memory board only after turning the power off and
removing the jumper plug on SCNT board jumper switch (JP1).
If the memory board is removed with the jumper plug attached to the SCNT
board jumper switch, the memory board will suffer damage.
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