Main Pcb - Brother MFC-9420CN Service Manual

5.1.14 Main PCB

(1) Disconnect the two connectors from the main PCB.
(2) Remove the four screws (A) and two screws (B) from the main PCB.
Screws (A)
Screws (B)
NCU harness ASSY connector
(3) Disconnect the connector of the main PCB from the engine controller board.

Main PCB

Screws (A)
Engine controller board
Fig. 5-56
Fig. 5-57
5-36
Speaker harness connector
Main PCB
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