Brother ADS-3000N Service Manual page 69

(3) Disconnect all harnesses and flat cables connected to the main PCB ASSY.
HARNESS ROUTING: Refer to
(4) Remove the three screw cup M3x6 screws, and remove the main PCB ASSY from the machine.
Main PCB ASSY
Front cover
sensor
harness
Document detection / Document
scanning position sensor harness
Fig. 3-20
"1. Main PCB
Fig. 3-21
3-25
Paper feed / Eject jam sensor harness
Multi feeding sensor harness (Sent)
Multi feeding sensor harness (Receive)
ASSY".
Screw cup M3x6
Main PCB ASSY
Paper feed
motor harness
Feed motor
harness
Panel flat
cable
First side
CIS flat
cable
Confidential