Brother MFC-9840CDW - Page 252

Confidential
3-119
(7) Remove the two cup S M3x6 Taptite screws, and then remove the NCU PCB ASSY.
(8) Disconnect the connector of the NCU harness ASSY.
Fig. 3-153
NCU PCB ASSY
Taptite, cup S M3x6
NCU shield cover
NCU harness ASSY