Brother MFC-8460N Service Manual page 271

(18) Connect the two Connectors into the Main PCB.
(19) Connect the Connector into Driver PCB.
(20) Secure the ADF FG harness and FB FG harness with the cup S M3x6 Taptite screw.
Driver PCB
Connector
(ADF motor harness)
ADF FG harness
FB FG harness
Taptite, cup S M3x6
Connectors
(ADF relay harness)
Main PCB
(21) Connect the connectors of the Photo interrupter and FFC cable into the Main PCB.
NOTE:
When connecting flat cable(s), do not insert them at an angle. After insertion, check that the
cables are not at an angle.
(22) Connect the connector of the Scanner motor harness into the Driver PCB.
Driver PCB
Scanner motor harness
FFC cable
Photo interrupter
Fig. 6-46
Main PCB
Fig. 6-47
Driver PCB
Main PCB
Driver PCB
Main PCB
6-26
Confidential