Brother DCP-L8400CDN Service Manual page 296

(10) Remove the Screw pan (S/P washer) M3.5x6 screw and remove the Modem shield cover
from the Modem shield plate.
Screw pan (S/P washer) M3.5x6
(11) Remove the two Taptite cup S M3x6 SR screws and remove the Modem PCB ASSY from
the Modem shield plate.
Taptite cup S M3x6 SR
Harness routing: Refer to
Fig. 3-179
Fig. 3-180
" Modem PCB ASSY (A4 model)", "
(Legal model)"
3-132
Modem shield cover
Modem shield plate
Modem PCB ASSY
Modem shield plate
Modem PCB ASSY
Confidential