Brother International IntelliFax-3550 Service Manual - Page 79
Harness Routing, Hook switch
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1.23 Harness Routing Main-NCU Main PCB harness NCU PCB Low-voltage Main-low- power supply voltage PCB harness Main motor harness Relay PCB Laser diode harness Fan 2 harness Main-sensor harness Scanner motor harness Microphone harness (MFC9500 only) Polygon motor flat cable Toner sensor harness Heater harness Hook switch harness Solenoid harness Speaker harness Relay-high- High-voltage Eraser Drum voltage flat power supply harness grounding cable PCB harness Fan 1 harness (Front) Main-panel harness IV - 29
IV –
29
1.23
Harness Routing
Relay PCB
Fan 2 harness
Main-sensor
harness
Relay–high-
voltage flat
cable
Main-panel
harness
Fan 1
harness
Drum
grounding
harness
Speaker
harness
Solenoid
harness
Hook switch
harness
Heater harness
Main motor
harness
Main–low-
voltage
harness
Low-voltage
power supply
PCB
NCU PCB
Main PCB
Main-NCU
harness
High-voltage
power supply
PCB
Eraser
harness
Laser diode
harness
Toner sensor
harness
Polygon motor
flat cable
(Front)
Scanner motor
harness
Microphone
harness
(MFC9500
only)