Brother DCP-L8400CDN Service Manual page 494

(31) Remove the Screw pan (S/P washer) M3.5x6 screw and remove the Modem ground
harness from the High-voltage power supply PCB ASSY.
Modem ground harness
Screw pan (S/P washer) M3.5x6
<Right side>
(32) Disconnect the wiring of the Modem ground harness.
(33) Release the two Hooks A and release the two Hooks B.
(34) Release the four Hooks C and lift the Joint cover top in the direction of the arrow.
(35) Slide the Joint cover top from the four Hooks D and remove it from the Main body.
Hook D
Hook C
Fig. 7-67
Hook A
Hook A
Fig. 7-68
7-37
Hook C
Joint cover top
35
34
Main body
High-voltage power
supply PCB ASSY
Hook B
Hook B
<Front side>
Confidential