Canon GP405 Service Handbook page 101

Address bit
P009 bit0 not used
bit1 not used
bit2 not used
bit3 not used
bit4 not used
bit5 not used
bit6 LED1 on DADF controller PCB
bit7 LED2 on DADF controller PCB
P010 bit0 DSW1-8 on DADF controller PCB
bit1 DSW1-7 on DADF controller PCB
bit2 DSW1-6 on DADF controller PCB
bit3 DSW1-5 on DADF controller PCB
bit4 DSW1-4 on DADF controller PCB
bit5 DSW1-3 on DADF controller PCB
bit6 DSW1-2 on DADF controller PCB
bit7 DSW1-1 on DADF controller PCB
Display
CHAPTER 4 SERVICE MODE
Remarks
when '0', ON.
when '0', ON.
when '1', ON.
when '1', ON.
when '1', ON.
when '1', ON.
when '1', ON.
when '1', ON.
when '1', ON.
when '1', ON.
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